Vortex ring generating device, air conditioner indoor unit, and air conditioner

Abstract

The present invention discloses a vortex ring generating device, an indoor air conditioner, and an air conditioner. The vortex ring generating device includes a current collector, a louver ring, and a louver driving mechanism. The current collector has a first port and a second port, and the air passing area of the second port is smaller than that of the first port. The louver ring is arranged at the first port and includes a mounting ring and a plurality of blades. The plurality of blades are arranged circumferentially along the mounting ring. Each blade has a rotating end connected to the mounting ring and a free end that rotates around the rotating end. The louver ring has a closed state in which the free ends of the blades approach the plane where the mounting ring is located to close the first port, and an open state in which the free ends of the blades move away from the first port and approach the second port. The louver driving mechanism drives the louver ring to periodically switch between the open state and the closed state. During the switching process of the louver ring from the closed state to the open state, the rotation direction of each blade is consistent with the air supply direction, resulting in small disturbance to the air flow and good vortex ring forming effect.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and particularly to a vortex ring generating device, an indoor air conditioner, and an air conditioner. Background Art

[0002] In the existing air conditioner, the air flow after heat exchange is blown out through a conventional air outlet of the air conditioner. The air outlet mode is conventional air outlet, and the air flow coming out of the conventional air outlet is fixed. Its radiation range is short and narrow, and it is impossible to achieve large-range and long-distance air supply, reducing the user experience.

[0003] By installing a vortex ring generating device on the air conditioner, long-distance air supply can be achieved. Specifically, by driving the air flow to flow through the current collector periodically to form a vortex ring. Generally, the way to drive the air flow includes setting a switch door at the air inlet of the current collector, and arranging an air supply component on one side of the switch door. By controlling the periodic opening and closing of the switch door, the periodic outflow of the air flow can be controlled. However, during the opening and closing process of the switch door, since the moving direction of the switch door is inconsistent with the air supply direction, it is easy to disturb the air flow and affect the forming effect of the vortex ring.

[0004] The above content is only used to assist in understanding the technical solution of the invention, and does not represent an admission that the above content is the prior art. Summary of the Invention

[0005] The main object of the present invention is to propose a vortex ring generating device, an indoor air conditioner, and an air conditioner that can reduce the disturbance to the air flow to improve the forming effect of the vortex ring.

[0006] The present invention provides a vortex ring generating device, including:

[0007] A current collector, the current collector having a first port, a second port, and an air outlet cavity, the air outlet cavity communicating the first port and the second port, and the air passing area of the second port being smaller than that of the first port;

[0008] A louver ring, installed on the current collector and disposed at the first port. The louver ring includes an installation ring and a plurality of blades. The plurality of blades are arranged circumferentially along the installation ring, and each blade is rotatably connected to the installation ring to respectively have a rotation end connected to the installation ring and a free end that rotates around the rotation end. The louver ring has a closed state in which the free ends of the blades approach the plane where the installation ring is located to close the first port, and an open state in which the free ends of the blades are away from the first port and approach the second port;

[0009] The louver driving mechanism is used to be connected to the driving of each of the blades so that the louver ring switches between the open state and the closed state, so that the airflow periodically flows into the air outlet cavity from the first port and flows out through the second port.

[0010] In one embodiment, the shutter driving mechanism includes a rotating ring coaxially arranged with the mounting ring, the rotating ring is rotatable relative to the mounting ring, and is drivingly connected to each of the blades, so that when the rotating ring is driven to rotate, the blades are driven to rotate.

[0011] In one embodiment, a rotating shaft is respectively provided at the rotating end of each blade, and a support rod is protruding from one side of each rotating shaft. The support rod is arranged at an angle with the blade, and the rotating ring is drivingly connected to each support rod so that when the rotating ring is driven to rotate, the support rod is driven to swing around the rotating shaft to drive each blade to rotate.

[0012] In one embodiment, a plurality of slide grooves are provided on the rotating ring, and the plurality of slide grooves are spaced apart in the circumferential direction of the rotating ring, and each of the slide grooves has a distal section away from the center of the rotating ring and a distal section close to the center of the rotating ring, and the support rods of each of the blades are correspondingly inserted into each of the slide grooves, so that when the rotating ring is driven to rotate, the support rod slides back and forth between the distal section and the distal section of the slide groove, so as to drive the support rod to swing around the rotating shaft.

[0013] In one embodiment, the shutter driving mechanism further includes a motor and a driving gear, wherein the motor is drivingly connected to the driving gear, an arc-shaped rack is provided on the outer periphery of the rotating ring, and the arc-shaped rack is meshed with the driving gear to drive the rotating ring to rotate.

[0014] In one embodiment, the rotating ring is disposed on a side of the mounting ring facing away from the second port, and the plurality of blades are disposed on a side of the mounting ring facing the second port.

[0015] In one embodiment, the vortex ring generating device further comprises a fixed disk, which is coaxially arranged with the rotating ring and is arranged on a side of the rotating ring away from the mounting ring, so that the rotating ring is clamped between the fixed disk and the mounting ring.

[0016] In one embodiment, the rotating ring is provided with a plurality of rolling bearings, the plurality of rolling bearings are arranged along the circumference of the rotating ring, the axial direction of each rolling bearing extends along the radial direction of the rotating ring, the fixed disk has a bearing surface facing the rotating ring, and the plurality of rolling bearings are supported on the bearing surface of the fixed disk.

[0017] In one embodiment, a ring-shaped support frame coaxial with and spaced from the rotating ring is provided in the middle of the rotating ring, and a plurality of reinforcing ribs are provided between the outer periphery of the ring-shaped support frame and the inner periphery of the rotating ring.

[0018] In one embodiment, a plurality of rollers are provided on one side of the fixed disk facing the rotating ring. The axial direction of each roller extends along the normal direction of the fixed disk, and the plurality of rollers are circumferentially spaced to enclose a roller ring, and the inner periphery of the ring-shaped support frame is sleeved on the outer periphery of the roller ring.

[0019] In one embodiment, the plurality of blades include a first blade and a second blade. The first blade and the second blade are arranged in a staggered manner in the axial direction of the mounting ring and are alternately arranged in the circumferential direction of the mounting ring, so that in the closed state, the two sides of the first blade in the circumferential direction are lapped with the adjacent second blades.

[0020] In one embodiment, a circular baffle is provided at the center of the louver ring. In the closed state, the free ends of the blades lap on the circular baffle.

[0021] In one embodiment, a plurality of grooves are provided on one side of the circular baffle facing the plurality of blades. The plurality of grooves are circumferentially spaced on the circular baffle, and protrusions are formed between the grooves. In the closed state, the free ends of the first blades respectively lap on the grooves, and the free ends of the second blades respectively lap on the protrusions.

[0022] In one embodiment, a soft layer is provided at the lap joint between the free end of each blade and the circular baffle.

[0023] In one embodiment, a soft layer is provided at the lap joint between the first blade and the second blade.

[0024] In one embodiment, the angle between each blade and the plane where the mounting ring is located in the open state is not less than 50° and not greater than 70°.

[0025] The present invention also provides an air conditioner indoor unit, including:

[0026] A housing having a heat exchange air duct, and an installation opening is provided on the housing; and,

[0027] The vortex ring generating device as described above is installed on the housing, and the second port of the vortex ring generating device communicates with the room through the installation opening to periodically send out vortex ring air flow from the second port.

[0028] The present invention also provides an air conditioner, which includes an outdoor unit of the air conditioner and the indoor unit of the air conditioner as described above, and the outdoor unit of the air conditioner is connected to the indoor unit of the air conditioner through a refrigerant pipe.

[0029] The vortex ring generating device provided by the present invention includes a current collector, a louver ring and a louver driving mechanism. The current collector has a first port, a second port and an air outlet cavity. The air outlet cavity communicates with the first port and the second port. The air passing area of the second port is smaller than that of the first port. The louver ring is arranged at the first port and includes a mounting ring and a plurality of blades. The plurality of blades are arranged along the circumferential direction of the mounting ring. Each blade has a rotating end connected to the mounting ring and a free end rotating around the rotating end. The louver ring has a closed state in which the free ends of the blades approach the plane where the mounting ring is located to close the first port, and an open state in which the free ends of the blades are away from the first port and approach the second port. During the air supply process of the vortex ring sending device, the louver driving mechanism drives each blade to rotate, and the louver ring switches from the closed state to the open state, so that the air flow enters the air outlet cavity through the first port and flows out through the second port. Among them, the rotation direction of each blade is consistent with the air supply direction, and the disturbance to the air flow is small. Compared with the opening method in which the moving direction of the switch door is inconsistent with the air supply direction, the vortex ring forming effect of the vortex ring generating device provided by the present invention is better and the air supply effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0031] Figure 1 It is a schematic three-dimensional structure diagram of an embodiment of the indoor unit of the air conditioner provided by the present invention;

[0032] Figure 2 For Figure 1 the front view of the indoor unit of the air conditioner in

[0033] Figure 3 For Figure 1 the schematic exploded three-dimensional structure diagram of the indoor unit of the air conditioner in

[0034] Figure 4 For Figure 3 the schematic three-dimensional structure diagram of the vortex ring generating device in

[0035] Figure 5 For Figure 4 the schematic exploded three-dimensional structure diagram of the vortex ring generating device in

[0036] Figure 6 ForFigure 3 Partial three-dimensional structure schematic diagram of the vortex ring generating device with the middle blade in the open state;

[0037] Figure 7 is Figure 6 Enlarged schematic diagram at position A in the middle;

[0038] Figure 8 is Figure 3 Partial three-dimensional structure schematic diagram of the vortex ring generating device with the middle blade in the closed state;

[0039] Figure 9 is Figure 6 Sectional three-dimensional structure schematic diagram of the mounting ring and the rotating ring in the middle;

[0040] Figure 10 is Figure 9 Enlarged schematic diagram at position B in the middle;

[0041] Figure 11 is Figure 6 Combined three-dimensional structure schematic diagram of the louver ring and the rotating ring in the middle;

[0042] Figure 12 is Figure 11 Enlarged schematic diagram at position C in the middle;

[0043] Figure 13 is Figure 8 Combined three-dimensional structure schematic diagram of the louver ring and the rotating ring in the middle;

[0044] Figure 14 is Figure 13 Enlarged schematic diagram at position D in the middle;

[0045] Figure 15 is Figure 5 Front view of the rotating ring in the middle;

[0046] Figure 16 is Figure 15 Enlarged schematic diagram at position E in the middle;

[0047] Figure 17 is Figure 6 Schematic diagram of the movement trajectory of the blade in the middle;

[0048] Figure 18 is Figure 17 Three-dimensional structure schematic diagram of the blade in the middle;

[0049] Figure 19 is Figure 5 Three-dimensional structure schematic diagram of the rotating ring in the middle;

[0050] Figure 20 is Figure 5 Sectional combined three-dimensional structure schematic diagram of the louver ring, the rotating ring, the fixed disk and the circular baffle in the middle;

[0051] Figure 21 is Figure 5 a schematic three-dimensional structure diagram of the circular baffle and the fixing plate in

[0052] Figure 22 is Figure 20 an enlarged schematic diagram at position F in

[0053] Figure 23 is Figure 20 an enlarged schematic diagram at position G in

[0054] Explanation of the reference numerals in the drawings:

[0055] Label Name Label Name Label Name 1 Outer shell 231 Rotating shaft 244 Reinforcing rib 11 Heat exchange air duct 232a Rotating end 245 Arc-shaped rack 12 Panel 232 Free end 25 Fixed disk 121 Installation opening 233 Support rod 251 Bearing surface 2 Vortex ring generating device 23a First blade 252 Drum 21 Current collector 23b Second blade 26 Circular baffle 211 First port 24 Rotating ring 261 Groove 212 Second port 241 Slide groove 262 Protrusion 213 Air outlet cavity 241a Far section 27 Louver driving mechanism 220 Louver ring 241b Near section 271 Motor 22 Installation ring 242 Rolling bearing 272 Driving gear 23 Blade 243 Annular support frame 30 Vortex ring fan

[0056] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0057] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0058] In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B at the same time.

[0059] The present invention provides an indoor air conditioner, which can be an indoor air conditioner, a mobile air conditioner, a wall-mounted indoor air conditioner, a window air conditioner, etc.

[0060] In the embodiments of the present invention, please refer to Figures 1 to 3 , the indoor air conditioner includes a housing 1 and a vortex ring generating device 2. The housing 1 has a heat exchange air duct 11, and an installation opening 121 is formed on the housing 1. The vortex ring generating device 2 is installed at the installation opening 121 of the housing 1.

[0061] The vortex ring generating device 2 includes a flow collector 21. The flow collector 21 has a first port 211, a second port 212, and an air outlet cavity 213. The air outlet cavity 213 communicates with the first port 211 and the second port 212. The air passing area of the second port 212 is smaller than that of the first port 211. Specifically, the flow collector 21 is arranged in a cylindrical shape, and preferably tapers at least partially from the first port 211 to the second port 212. The cross-sectional shape of the flow collector 21 can be circular, elliptical, rectangular, etc. To reduce wind resistance, the flow collector 21 is generally in a cylindrical shape. By making the flow collector 21 taper from the first port 211 to the second port 212, the flow collector 21 can collect the air sent out from the first port 211, and make the generation and blowing of the vortex ring smoother.

[0062] Further, please refer to Figure 4 and Figure 5 , the vortex ring generating device 2 further includes a louver ring 220 and a louver driving mechanism 27. The louver ring 220 is installed on the flow collector 21 and is arranged at the first port 211. The louver ring 220 includes a mounting ring 22 and a plurality of blades 23. The plurality of blades 23 are arranged along the circumferential direction of the mounting ring 22. Each blade 23 is rotatably connected to the mounting ring 22, and thus has a rotating end 232a connected to the mounting ring 22 and a free end 232 that rotates around the rotating end 232a. The louver ring 220 has a closed state in which the free ends 232 of the blades 23 approach the plane where the mounting ring 22 is located to close the first port 211, and an open state in which the free ends 232 of the blades 23 are away from the first port 211 and close to the second port 212. The louver driving mechanism 27 is used to be drivingly connected to each blade 23, so that the louver ring 220 periodically switches between the open state and the closed state, so that the air flow periodically flows into the air outlet cavity 213 from the first port 211 and flows out through the second port 212.

[0063] Specifically, the louver ring 220 is provided at the first port 211 such that the louver ring 220 can block the inflow of air into the air outlet cavity 213 in the closed state, while the louver driving mechanism 27 is drivingly connected to each blade 23, so that the louver ring 220 periodically switches between the open state and the closed state to periodically drive the air flow through the air outlet cavity 213, thereby forming a vortex ring. It should be noted that in the closed state, the louver ring 220 can completely close the first port 211 or partially close the first port 211. For example, it can close 2 / 3, 4 / 5, 5 / 6, 9 / 10, etc. of the first port 211. In this embodiment, in the closed state of the louver ring 220, the free ends 232 of the blades 23 are close to the plane where the mounting ring 22 is located to substantially completely close the first port 211. Further, there are various ways to supply air to the air outlet cavity 213. In one embodiment, the first port 211 can be connected to the heat exchange air duct 11 of the air conditioner indoor unit, and then the heat exchange fan can continuously blow the air flow towards the air outlet cavity 213. In this embodiment, please refer to Figure 5 , the first port 211 may not be connected to the heat exchange air duct 11, and a vortex ring fan 30 is provided to drive sufficient indoor air flow towards the first port 211.

[0064] Based on the above embodiments, the louver driving mechanism 27 is used to be drivingly connected to each blade 23 to drive each blade 23 to rotate, so that the louver ring 220 periodically switches between the open state and the closed state. When the louver ring 220 is in the closed state, since the first port 211 is continuously admitting air, a certain volume of air will accumulate at the first port 211, forming a pressure difference on both sides of the louver ring 220. When the louver ring 220 switches to the open state, due to the pressure difference, a driving force will be formed to drive the air flow through the air outlet cavity 213 towards the second port 212. And since the air passing area of the second port 212 is smaller than that of the first port 211, a flow field distribution with a slow peripheral flow velocity and a large middle flow velocity can be formed, so that the air blown out from the second port 212 forms a vortex ring air flow, thereby achieving a farther air supply distance. And during the transmission process, the vortex ring exchanges heat with the surrounding ambient air, and the temperature difference between the vortex ring temperature and the surrounding air temperature is not large, ensuring that there will be no obvious overcooling or overheating feeling when the vortex ring blows on people, improving the comfort.

[0065] In this embodiment, during the process of the louver ring 220 switching from the closed state to the open state, each blade 23 is driven to rotate, so that the free ends 232 of the blades 23 rotate from the position in the plane where the louver ring 220 is located towards the direction close to the second port 212. Since the rotation direction of the blade 23 is consistent with the air flow direction, the disturbance to the air flow is small. Compared with the opening method where the moving direction of the switch door is inconsistent with the air supply direction, the vortex ring forming effect of the vortex ring generating device 2 provided by the present utility model is better and the air supply effect is good.

[0066] There are various ways for the shutter driving mechanism 27 to drive the rotation of each blade 23. For example, the rotating shafts 231 connecting each blade 23 can be driven separately so that each blade 23 can be driven to rotate. In this embodiment, please refer to Figures 6 to 10 , the shutter driving mechanism 27 includes a rotating ring 24. The rotating ring 24 is coaxially arranged with the mounting ring 22 and is rotatable relative to the mounting ring 22. The rotating ring 24 is drivingly connected to each blade 23 so that when the rotating ring 24 is driven to rotate, it drives each blade 23 to rotate. In this way, the rotational movement of the rotating ring 24 can be converted into the rotational movement of each blade 23, enabling the rotational movements of multiple blades 23 to be synchronized. When the shutter ring 220 switches between the open state and the closed state, the consistency of the movements of multiple blades 23 is improved, thereby enabling the first port 211 to be opened more quickly, allowing the air flow to rapidly pass through the air outlet cavity 213 to form a vortex ring.

[0067] Furthermore, there are various ways to drivingly connect the rotating ring 24 to each blade 23. For example, it can be connected to the rotating shaft 231 through a connecting rod, or it can also be connected by means of gear and rack meshing, etc. In this embodiment, please refer to Figures 13 to 19 , a rotating shaft 231 is respectively provided at the rotating end 232a of each blade 23. A support rod 233 protrudes from one side of each rotating shaft 231. The support rod 233 is arranged at an angle with the blade 23. The rotating ring 24 is drivingly connected to each support rod 233 so that when the rotating ring 24 is driven to rotate, it drives the support rod 233 to swing around the rotating shaft 231 to drive each blade 23 to rotate. Specifically, please refer to Figure 17 , the support rod 233 intersects the rotating shaft 231 substantially perpendicularly, and the support rod 233 is arranged at an angle with the blade 23. Thus, when the support rod 233 is driven to swing, under the action of the lever force, it can drive the blade 23 to rotate. In this embodiment, the angle between the support rod 233 and the blade 23 can be set as needed so that when the support rod 233 swings, it drives the blade 23 to rotate between the open state and the closed state. By driving the support rod 233 to swing through the rotating ring 24 to drive the blade 23 to rotate, the driving method is simple and can ensure the consistency of the movements of multiple blades 23, thereby enabling the first port 211 to be opened more quickly, allowing the air flow to rapidly pass through the air outlet cavity 213 to form a vortex ring.

[0068] Specifically, for the way the rotating ring 24 drives the support rod 233 to swing, please refer to Figures 14 to 17 , a plurality of sliding grooves 241 are formed in the rotating ring 24. The plurality of sliding grooves 241 are spaced apart in the circumferential direction of the rotating ring 24, such as Figure 15 and Figure 16As shown, each slide groove 241 has a distant section 241a away from the center of the rotating ring 24, and a close section 241b close to the center of the rotating ring 24. The support rods 233 of each blade 23 are respectively inserted into each slide groove 241, so that when the rotating ring 24 is driven to rotate, the support rod 233 slides back and forth between the close section 241b and the distant section 241a of the slide groove 241 to drive the support rod 233 to swing around the rotating shaft 231. In this way, during the rotation of the rotating ring 24, the support rod 233 is pushed to swing by the inner wall of the slide groove 241, thereby driving the blade 23 to rotate. In this way, the driving connection between the rotating ring 24 and each blade 23 is realized with a simple structure, which has good reliability and is easy to assemble.

[0069] For further information, see Figure 5 , Figure 6 and Figure 19 The shutter driving mechanism 27 further includes a motor 271 and a driving gear 272. The motor 271 drives and connects the driving gear 272. An arc-shaped rack 245 is provided on the outer periphery of the rotating ring 24. The arc-shaped rack 245 meshes with the driving gear 272 to drive the rotating ring 24 to rotate. In this way, by adjusting the rotation direction of the motor 271, the rotating ring 24 can be driven to rotate back and forth in a simple manner.

[0070] In one embodiment, see Figure 5 , Figure 6 and Figure 8 The rotating ring 24 is disposed on the side of the mounting ring 22 away from the second port 212, and the plurality of blades 23 are disposed on the side of the mounting ring 22 facing the second port 212. In this way, it is possible to avoid the situation where the rotating end 232a of each blade 23 needs to avoid the rotating ring 24 when rotating toward the second port 212, and the structure is simpler.

[0071] For further information, see Figure 5 , Figures 20 to 23 The vortex ring generating device 2 further includes a fixed disk 25, which is coaxially arranged with the rotating ring 24 and is arranged on the side of the rotating ring 24 away from the mounting ring 22, so that the rotating ring 24 is clamped between the fixed disk 25 and the mounting ring 22. The rotating ring 24 is limited in the axial direction to prevent the rotating ring 24 from shaking in the axial direction during the rotation process, thereby enhancing the stability of the rotating ring 24.

[0072] Based on the previous embodiment, please refer to Figure 19 , Figure 20 and Figure 23, the rotating ring 24 is provided with a plurality of rolling bearings 242. The plurality of rolling bearings 242 are arranged along the circumferential direction of the rotating ring 24, and the axial direction of each rolling bearing 242 extends along the radial direction of the rotating ring 24. The fixed disk 25 has a bearing surface 251 facing the rotating ring 24, and the plurality of rolling bearings 242 are supported on the bearing surface 251 of the fixed disk 25. In this way, during the rotation process, the plurality of rolling bearings 242 roll on the bearing surface 251 of the fixed disk 25, reducing the resistance of the rotating ring 24 during the rotation process, facilitating the driving of the rotating ring 24 to rotate, and improving the stability of the rotating ring 24 during the rotation process, and reducing the possible noise generated when the rotating ring 24 rotates.

[0073] Further, please refer to Figure 19 , a ring-shaped support frame 243 coaxial with and spaced from the rotating ring 24 is provided in the middle of the rotating ring 24. A plurality of reinforcing ribs 244 are provided between the outer circumference of the ring-shaped support frame 243 and the inner circumference of the rotating ring 24. In this way, the rotating ring 24 is arranged in a grid-like shape to reduce the influence on the air flow, and a plurality of reinforcing ribs 244 are provided between the outer circumference of the ring-shaped support frame 243 of the rotating ring 24 and the inner circumference of the rotating ring 24 to ensure the stiffness of the rotating ring 24 and reduce the deformation of the rotating ring 24.

[0074] Specifically, please refer to Figure 21 and Figure 22 , a plurality of rollers 252 are provided on the side of the fixed disk 25 facing the rotating ring 24. The axial direction of each roller 252 extends along the normal direction of the fixed disk 25, and the plurality of rollers 252 are spaced apart in the circumferential direction to enclose a roller 252 ring. The inner circumference of the ring-shaped support frame 243 is sleeved on the outer circumference of the roller 252 ring. In this way, the roller 252 ring and the ring-shaped support frame 243 are combined to form a bearing, so that the rotation of the rotating ring 24 is smoother, the noise generated during the rotation process of the rotating ring 24 is reduced, and the stability of the rotating ring 24 is improved.

[0075] In an embodiment, please refer to Figure 6 , Figure 8 and Figures 11 to 14 , the multiple blades 23 of the louver ring 220 include a first blade 23a and a second blade 23b. The first blade 23a and the second blade 23b are arranged in a staggered manner in the axial direction of the mounting ring 22 and are alternately arranged in the circumferential direction of the mounting ring 22, so that in the closed state, the two sides of the first blade 23a in the circumferential direction overlap with the adjacent second blade 23b. In this way, it is avoided that the multiple blades 23 hinder each other during the rotation process, affecting the closing process of the louver ring 220, and the sealing performance of the louver ring 220 in the closed state is improved, thereby ensuring the pressure difference on both sides of the louver ring 220 to more smoothly form a vortex ring.

[0076] Further, please refer to Figure 8 , Figure 13 andFigure 20 At the center of the louver ring 220, there is a circular baffle 26. In the closed state, the free ends 232 of the respective vanes 23 overlap the circular baffle 26. Thus, the free ends 232 of the respective vanes 23 have a larger dimension in the circumferential direction. In the closed state of the louver ring 220, multiple vanes 23 and the circular baffle 26 jointly enclose the first port 211 of the current collector 21. Thus, even if the dimensional accuracy of the respective vanes 23 is not high, they can cooperate with the circular baffle 26. When the louver ring 220 is in the closed state, the first port 211 can be substantially completely enclosed.

[0077] Based on the previous embodiment, please refer to Figure 20 and Figure 21 , on the side of the circular baffle 26 facing the multiple vanes 23, there are multiple grooves 261. The multiple grooves 261 are arranged at intervals along the circumferential direction of the circular baffle 26. Protrusions 262 are formed between the respective grooves 261. In the closed state, the free ends 232 of the respective first vanes 23a respectively overlap the respective grooves 261, and the free ends 232 of the respective second vanes 23b respectively overlap the respective protrusions 262. Thus, when the louver ring 220 is in the closed state, the relative positions of the respective vanes 23 can be better limited, preventing the respective vanes 23 from moving relative to each other and affecting the sealing effect of the louver ring 220 in the closed state. Preferably, a soft layer is provided at the overlapping portion between the free end 232 of each vane 23 and the circular baffle 26. The soft layer can specifically be made of materials such as sponge or rubber. On the one hand, it can increase the friction between the vane 23 and the circular baffle 26, thereby improving the sealing performance of the louver ring 220 for the first port 211 in the closed state. On the other hand, it can provide buffering when the vane 23 contacts the circular baffle 26, protecting the vane 23 and reducing noise.

[0078] Based on the above embodiment, a soft layer is provided at the overlapping portion between the first vane 23a and the second vane 23b. Thus, the sealing performance of the louver ring 220 for the first port 211 in the closed state is improved, and the vane 23 is protected and the noise is reduced.

[0079] When the louver ring 220 is in the open state, the positions of the multiple vanes 23 can be various. For example, they can be perpendicular to the plane where the louver ring 220 is located, or can be flipped to be parallel to the plane where the louver ring 220 is located. It can be understood that the positions of the multiple vanes 23 in the open state are restricted by the shape of the current collector 21 itself. For example, when the current collector 21 is tapered from the first port 211 to the second port 212, the inner wall of the air outlet cavity 213 is arranged at an angle with the air supply direction. Thus, when in the open state, the vanes 23 should avoid colliding with the inner wall of the air outlet cavity 213, and are preferably arranged parallel to the inner wall of the air outlet cavity 213. In this embodiment, the angle between each vane 23 and the plane where the mounting ring 22 is located in the open state is not less than 50° and not greater than 70°. Thus, each vane 23 is arranged at an angle with the air supply direction in the open state, and the vane surface of the vane 23 plays a certain guiding role on the air flow, enhancing the formation of a flow field distribution with a slow peripheral flow velocity and a large intermediate flow velocity, thereby strengthening the vortex ring forming effect.

[0080] The present invention also provides an air conditioner, which includes an indoor unit and an outdoor unit of the air conditioner connected by a refrigerant pipe. Among them, the specific structure of the indoor unit of the air conditioner refers to the above embodiments. Since the indoor unit of the air conditioner adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0081] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural transformations made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A vortex ring generating device, characterized in that, it includes: a current collector, the current collector having a first port, a second port and an air outlet cavity, the air outlet cavity communicating the first port and the second port, and the air passing area of the second port being smaller than that of the first port; a louver ring, mounted on the current collector and provided at the first port, the louver ring including a mounting ring and a plurality of blades, the plurality of blades being arranged circumferentially along the mounting ring, each blade being rotatably connected to the mounting ring to respectively have a rotating end connected to the mounting ring and a free end rotatable around the rotating end, the louver ring having a closed state in which the free ends of the respective blades approach the plane where the mounting ring is located to close the first port, and an open state in which the free ends of the respective blades are away from the first port and close to the second port; a louver driving mechanism for drivingly connecting with each blade to enable the louver ring to switch between the open state and the closed state, so that air flow periodically flows into the air outlet cavity from the first port and flows out through the second port.

2. The vortex ring generating device according to claim 1, characterized in that, the louver driving mechanism includes a rotating ring coaxially arranged with the mounting ring, the rotating ring being rotatable relative to the mounting ring and drivingly connected to each blade, so that when the rotating ring is driven to rotate, it drives each of the blades to rotate.

3. The vortex ring generating device according to claim 2, characterized in that, rotating shafts are respectively provided at the rotating ends of the respective blades, a support rod protrudes from one side of each rotating shaft, the support rod being arranged at an angle with the blade, and the rotating ring is drivingly connected to each support rod, so that when the rotating ring is driven to rotate, it drives the support rod to swing around the rotating shaft to drive each blade to rotate.

4. The vortex ring generating device according to claim 3, characterized in that, a plurality of sliding grooves are formed in the rotating ring, the plurality of sliding grooves being spaced apart in the circumferential direction of the rotating ring, each sliding groove respectively having a far section away from the center of the rotating ring and a near section close to the center of the rotating ring, the support rods of the respective blades being respectively inserted into the respective sliding grooves, so that when the rotating ring is driven to rotate, the support rod slides back and forth between the near section and the far section of the sliding groove to drive the support rod to swing around the rotating shaft.

5. The vortex ring generating device according to claim 4, characterized in that, the louver driving mechanism further includes a motor and a driving gear, the motor is drivingly connected to the driving gear, and an arc-shaped rack is provided on the outer periphery of the rotating ring, the arc-shaped rack being engaged with the driving gear for driving the rotating ring to rotate.

6. The vortex ring generating device according to any one of claims 2 to 5, characterized in that, the rotating ring is provided on a side of the mounting ring facing away from the second port, and the plurality of blades are provided on a side of the mounting ring facing the second port.

7. The vortex ring generating device according to claim 6, characterized in that, The vortex ring generating device also includes a fixed disk, which is coaxially arranged with the rotating ring and is arranged on a side of the rotating ring away from the mounting ring, so that the rotating ring is clamped between the fixed disk and the mounting ring.

8. The vortex ring generating device according to claim 7, It is characterized in that The rotating ring is provided with a plurality of rolling bearings, which are arranged along the circumference of the rotating ring, and the axial direction of each rolling bearing extends along the radial direction of the rotating ring. The fixed disk has a bearing surface facing the rotating ring, and the plurality of rolling bearings are supported on the bearing surface of the fixed disk.

9. The vortex ring generating device according to claim 8, It is characterized in that An annular support frame is provided in the middle of the rotating ring, which is coaxial with the rotating ring and arranged at intervals, and a plurality of reinforcing ribs are provided between the outer periphery of the annular support frame and the inner periphery of the rotating ring.

10. The vortex ring generating device according to claim 9, It is characterized in that A plurality of rollers are provided on the side of the fixed disk facing the rotating ring, the axial direction of each roller extends along the normal direction of the fixed disk, and the plurality of rollers are spaced apart in the circumferential direction to enclose a roller ring, and the inner circumference of the annular support frame is sleeved on the outer circumference of the roller ring.

11. The vortex ring generating device according to any one of claims 1 to 5, It is characterized in that The multiple blades include a first blade and a second blade, the first blade and the second blade are staggered in the axial direction of the mounting ring, and are alternately arranged in the circumferential direction of the mounting ring, so that in the closed state, the first blade overlaps with the adjacent second blade on both sides in the circumferential direction.

12. The vortex ring generating device according to claim 11, It is characterized in that A circular baffle is provided at the center of the shutter ring, and in the closed state, the free end of each blade overlaps the circular baffle.

13. The vortex ring generating device according to claim 12, It is characterized in that A plurality of grooves are provided on the side of the circular baffle plate facing the plurality of blades. The plurality of grooves are spaced apart along the circumference of the circular baffle plate, and protrusions are formed between the grooves. In the closed state, the free ends of the first blades overlap the grooves respectively, and the free ends of the second blades overlap the protrusions respectively.

14. The vortex ring generating device according to claim 13, It is characterized in that A soft layer is provided at the overlap between the free end of each blade and the circular baffle.

15. The vortex ring generating device according to claim 11, It is characterized in that A soft layer is provided at the overlap of the first blade and the second blade.

16. The vortex ring generating device according to any one of claims 1 to 5, It is characterized in that In the open state, the angle between each blade and the plane where the mounting ring is located is not less than 50° and not more than 70°.

17. An air conditioner indoor unit, It is characterized in that include: The shell has a heat exchange air duct, and the shell is provided with a mounting opening; as well as, The vortex ring generating device according to any one of claims 1 to 16 is installed in the housing, and the second port of the vortex ring generating device communicates with the room through the installation port, and is used to periodically send out vortex ring air flow from the second port.

18. An air conditioner, characterized in that, it includes an outdoor air conditioner and the indoor air conditioner according to claim 17, and the outdoor air conditioner is connected to the indoor air conditioner through a refrigerant pipe.

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