CN110848823A - Central air conditioner with controllable wind direction - Google Patents
Central air conditioner with controllable wind direction Download PDFInfo
- Publication number
- CN110848823A CN110848823A CN201911025658.7A CN201911025658A CN110848823A CN 110848823 A CN110848823 A CN 110848823A CN 201911025658 A CN201911025658 A CN 201911025658A CN 110848823 A CN110848823 A CN 110848823A
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- connecting rod
- air outlet
- plate
- air
- cam
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention relates to a central air conditioner with controllable wind direction, which comprises an air outlet machine, wherein the lower end of the air outlet machine is provided with air outlets at equal intervals in the circumferential direction, blades are rotatably arranged in the air outlets, the central air conditioner also comprises a flow control unit which is arranged at the lower end of the air outlet machine and is positioned below the air outlets, the flow control unit comprises a flow guide plate and a connecting rod, the flow guide plate is used for guiding cold air to flow upwards, the connecting rod is arranged at the upper end of the flow guide plate, the connecting rods are arranged at two ends of the flow guide plate in the length width direction, mounting grooves are formed in the lower end of the air outlet machine and two sides of the air outlets in the length direction, the upper ends of the connecting rods; the condition of the personnel directly blowing the cold air is avoided by automatically guiding the cold air with high flow velocity to flow upwards.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a central air conditioner with controllable wind direction.
Background
A central air conditioner is an apparatus for adjusting indoor temperature.
As shown in fig. 1, a conventional central air conditioner 1 is of a square structure and is usually used at the upper end of an office area with a wide area, four air outlets 11 are circumferentially and equally spaced at the lower end of the central air conditioner 1, and blades 2 are rotatably mounted in the air outlets; when the central air conditioner 1 is started, the blades 2 rotate to open the air outlet 11, and the cold air cools the indoor space through the air outlet 11.
The above prior art solutions have the following drawbacks:
because the air outlet is vertical downwards, the angle that the blade rotated to open is the flow direction of air conditioning, however because the office area is great, and through air conditioning wind speed and air conditioning temperature decision during the refrigeration speed, but the central air conditioning that just starts, air conditioning temperature is difficult to reduce very fast, so want rapid cooling to transfer the wind speed of central air conditioning to the biggest, make air conditioning flow out fast from the air outlet, and the air exhaust distance is more far away the faster the air conditioning flows, lead to some office staff can directly face the straight blow of air conditioning, lead to the uncomfortable and sick situation of personnel easily.
Disclosure of Invention
The invention aims to provide a central air conditioner with a controllable wind direction, which can automatically guide cold air with high flow velocity to flow upwards so as to avoid the situation that the cold air directly blows people.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a controllable central air conditioning of wind direction, includes out the fan, the lower extreme circumference of going out the fan is equidistant to be equipped with the air outlet, rotate in the air outlet and install the blade, still including set up in go out the fan lower extreme and be located the accuse of air outlet below and flow the unit, the accuse flows the unit including being used for guiding air conditioning upflow's drainage plate and setting up in the connecting rod of drainage plate upper end, and the both ends that are located drainage plate length width direction all are provided with the connecting rod, the lower extreme that goes out the fan just is located air outlet length direction's both sides and has seted up the mounting groove, the upper end of connecting rod is rotated to inlay and is established and in the mounting groove, just the axis of rotation of connecting rod is on a.
Through adopting above-mentioned technical scheme, when starting out the fan, rotate the connecting rod for the drainage plate slope is located the below of blowing the mouth, and air conditioning sees off from the air outlet, and air conditioning receives the guide of blade and flows to the drainage plate on, and drainage plate guide air conditioning upwards flows, and then air conditioning subsides downwards gradually again, and the drainage plate constitutes accuse stream unit with the connecting rod and has avoided air conditioning directly to blow to personnel.
The invention is further configured to:
the driving unit comprises a cam which is rotatably arranged in the mounting groove and a power assembly which controls the cam to rotate, the rotation axis of the cam is parallel to the rotation axis of the connecting rod, and the cam is in sliding butt joint with one end, far away from the drainage plate, of the connecting rod;
when one end of the cam, which is farthest away from the center of the cam, is abutted to the connecting rod, the included angle between the connecting rod and the lower end of the air outlet machine is smaller than 90 degrees.
Through adopting above-mentioned technical scheme, when the air conditioning wind speed is great, the control cam rotates, and the cam promotes the connecting rod and rotates, and then realizes the rotation of drainage plate, realizes the flow of stable guide air conditioning, and when the air conditioning wind speed reduced, the drainage plate of controlling again resets, reduces the angle that upwards flows of guide air conditioning for the faster downward settlement of air conditioning guarantees stable indoor cooling.
The invention is further configured to: the utility model discloses a wind turbine generator, including the air outlet, be provided with fixed blade's pivot in the air outlet, power component includes the power shaft coaxial with the cam and is fixed in the epaxial power piece of power, the power shaft sets up in the air outlet, the one end that the power shaft was kept away from to the power piece slides the butt in the pivot, the epaxial torsional spring that is provided with of power, the one end and the power shaft of torsional spring are fixed, and the other end is fixed with the play fan, the torsional spring has the trend that drives the power piece and be close to the pivot.
By adopting the technical scheme, when the air outlet machine is just started to cool the indoor, the speed of the cold air is increased to the maximum, and the cold air flows along the blades in the air outlet, so that the cold air intensively impacts the power sheet, at the moment, the power sheet rotates towards the direction far away from the rotating shaft due to the fact that the speed of the cold air is high, and then the power shaft, the cam and the connecting rod are driven to rotate at the same time, so that the drainage plate inclines and guides the high-speed cold air to flow upwards; after the indoor temperature reduces, air conditioning speed reduces gradually, makes the power plate reset gradually under the effect of torsional spring for the drainage plate resets, and then air conditioning upflow angle reduces for the subsidence of air conditioning realizes the purpose of automatic control air conditioning flow direction.
The invention is further configured to: the lower extreme of connecting rod rotates to peg graft and has the installation axle, the axis of installation axle is parallel and the rotation axis of connecting rod, the upper end of drainage plate is fixed with the collar, the collar establishes the cooperation with the fixed cover of installation axle, install the epaxial worm wheel that is fixed with of axle, it is provided with the worm with worm wheel meshing to rotate on the connecting rod.
Through adopting above-mentioned technical scheme, because the biggest air conditioning speed that the difference goes out the fan is different, so when the unit is flowed in first installation accuse, drive the worm wheel through rotating the worm and rotate, adjust the angle between drainage plate and the connecting rod to adapt to different wind-force, and also can change the air conditioning flow direction and realize being applicable to different scenes through artifical the regulation, for example: in a crowded space, etc.
The invention is further configured to: a hand wheel is arranged at one end of the worm, and grooves are formed in the hand wheel at intervals in the circumferential direction.
Through adopting above-mentioned technical scheme, the recess is convenient for personnel to control the rotation of worm wheel, and then convenient regulation drainage plate.
The invention is further configured to: the mounting ring is in threaded connection with a locking bolt, and the locking bolt abuts against the mounting shaft.
Through adopting above-mentioned technical scheme, flow the permanent installation back of subassembly in the accuse, produce the deposition on the drainage plate very easily, through rotating the locking bolt, loosen the extrusion between locking bolt and the installation axle, will gu fixed ring takes off from the installation epaxial, realize the dismouting of drainage plate, and then conveniently pull down the back cleanness with the drainage plate, avoid high-speed air conditioning to blow off the dust on the drainage plate.
The invention is further configured to: the drainage plate comprises a middle plate and end plates arranged on two sides of the middle plate in the width direction, the end plates are connected to the middle plate in a rotating mode, and the rotating axis of each end plate is parallel to the rotating axis of the connecting rod.
By adopting the technical scheme, the end plate is driven to rotate upwards in summer, so that the stable upward flow of the cold air is guided; in winter, drive tip board rotates downwards to rotate the screw rod simultaneously, make intermediate lamella and connecting rod be close to parallelly, when fast-speed heating installation blew off, can drive the connecting rod equally and make the drainage board upwards rotate, the heating installation flows to the opposite side of drainage board guide air conditioning this moment, and the drainage board is realized driving the oblique below of heating installation and is flowed, and then realizes subsiding fast of heating installation, realizes the purpose of indoor intensification.
The invention is further configured to: in summer, the adjusting sleeve is rotated, and drives the shaft rod and the end plate to rotate upwards, so that the cold air is stably guided to flow upwards; in winter, rotate the adjusting collar for axostylus axostyle and tip board rotate downwards, and rotate the screw rod simultaneously, make intermediate lamella and connecting rod be close parallel, when fast-speed heating installation blows off, can drive the connecting rod equally and make the drainage plate upwards rotate, the heating installation flows to the opposite side of drainage plate guide air conditioning this moment, and the drainage plate realizes driving the heating installation and flows to the below that inclines, and then realizes subsiding fast of heating installation, realizes the purpose of indoor intensification.
By adopting the technical scheme, the adjusting sleeve is rotated in summer, and drives the shaft rod and the end plate to rotate upwards, so that the cold air is stably guided to flow upwards; in winter, rotate the adjusting collar for axostylus axostyle and tip board rotate downwards, and rotate the screw rod simultaneously, make intermediate lamella and connecting rod be close parallel, when fast-speed heating installation blows off, can drive the connecting rod equally and make the drainage plate upwards rotate, the heating installation flows to the opposite side of drainage plate guide air conditioning this moment, and the drainage plate realizes driving the heating installation and flows to the below that inclines, and then realizes subsiding fast of heating installation, realizes the purpose of indoor intensification.
In conclusion, the beneficial technical effects of the invention are as follows:
the rotation of the drainage plate is controlled through the speed of the cold air, so that the situation that the cold air directly blows to a human body is avoided, and indoor personnel are protected.
Drawings
FIG. 1 is a prior art schematic;
FIG. 2 is a schematic view of an embodiment assembly;
FIG. 3 is a schematic structural view of a flow control assembly;
FIG. 4 is an enlarged schematic view of FIG. 3 at A;
fig. 5 is a schematic diagram for embodying a drainage plate structure.
In the figure, 1, an air outlet machine; 11. an air outlet; 12. mounting grooves; 2. a blade; 21. a rotating shaft; 3. a power shaft; 31. a power sheet; 32. a cam; 33. a torsion spring; 4. a connecting rod; 41. a worm; 42. installing a shaft; 43. a worm gear; 44. a hand wheel; 441. a groove; 5. a drainage plate; 51. a fixing ring; 52. a locking bolt; 6. a middle plate; 61. a card slot; 7. an end plate; 71. a connecting plate; 72. a shaft lever; 73. an adjusting sleeve; 74. the sleeve is rotated.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 2, a central air conditioner with a controllable wind direction comprises an air outlet machine 1 and a flow guide plate 5 arranged below the air outlet machine 1, wherein air outlets 11 are circumferentially arranged at the lower end of the air outlet machine 1 at intervals, a rotating shaft 21 and blades 2 are rotatably arranged in the air outlets 11, connecting rods 4 are rotatably connected to the lower end of the air outlet machine 1 and two sides of the length direction of the air outlets 11, the rotating axis of each connecting rod 4 is parallel to the rotating axis of each blade 2, and the lower end of each connecting rod 4 is connected to the upper end of the flow guide plate 5, so that each connecting rod 4 is perpendicular to;
when starting out fan 1, rotate connecting rod 4 for 5 slopes of drainage plate are located the below of blowing mouthful, and air conditioning is seen off from air outlet 11, and air conditioning receives the guide of blade 2 to flow to on drainage plate 5, and drainage plate 5 guides air conditioning to flow upwards, and then air conditioning subsides downwards again gradually, and drainage plate 5 and connecting rod 4 constitute accuse stream unit and have avoided air conditioning directly to blow to personnel.
As shown in fig. 2 and 3, mounting grooves 12 are formed at the lower end of the air-out machine 1 and at two sides of the air blowing port in the length direction, the upper end of the connecting rod 4 is rotatably arranged in the mounting grooves 12, a driving unit for controlling the rotation of the connecting rod 4 is mounted in the mounting grooves 12, the driving unit comprises a cam 32 rotatably arranged in the mounting grooves 12, the rotation axis of the cam 32 is parallel to the rotation axis of the connecting rod 4, and the cam 32 is slidably abutted against one end of the connecting rod 4 far away from the hinge axis thereof; when the air speed of the air conditioning is great, the control cam 32 rotates, the cam 32 pushes the connecting rod 4 to rotate, then the rotation of the flow guide plate 5 is realized, the stable flow of the air conditioning is realized, when the air speed of the air conditioning is reduced, the flow guide plate 5 is controlled to reset again, the upward flowing angle of the air conditioning is reduced, the air conditioning is settled downwards faster, and the stable indoor cooling is ensured.
As shown in fig. 3 and 4, a power shaft 3 is disposed in the air outlet 11, the power shaft 3 is parallel to the rotating shaft 21, two ends of the power shaft 3 extend into the installation groove 12, a cam 32 is coaxially fixed on the power shaft 3, a power sheet 31 is fixed on the power shaft 3 and the portion of the air outlet 11, the power sheet 31 is in sliding contact with the rotating shaft 21, a torsion spring 33 is sleeved on one end of the rotating shaft 21 located in the installation groove 12, one end of the torsion spring 33 is fixed with the power shaft 3, and the other end is fixedly connected with the inner wall of the installation groove 12, when the power shaft 3 is not under stress, the torsion spring 33 fixes the power shaft 3, and the power sheet 31 is in contact with the rotating shaft 21;
when the air outlet machine 1 is just started to cool the indoor, the speed of the cold air is increased to the maximum, and the cold air flows along the blades 2 in the air outlet 11, so that the cold air intensively impacts the power sheet 31, at this time, the power sheet 31 rotates in the direction away from the rotating shaft 21 due to the fact that the speed of the cold air is high, and the power shaft 3, the cam 32 and the connecting rod 4 are driven to rotate at the same time, so that the drainage plate 5 inclines and guides the high-speed cold air to flow upwards; after the indoor temperature reduces, air conditioning speed reduces gradually, makes the power plate reset gradually under torsional spring 33's effect for drainage plate 5 resets, and then air conditioning upflow angle reduces for air conditioning subsides, realizes the purpose of automatic control air conditioning flow direction.
As shown in fig. 3 and 4, a mounting shaft 42 is rotatably inserted into the lower end of the connecting rod 4, the axis of the mounting shaft 42 is parallel to the axis of the connecting rod 4, a pair of fixing rings 51 are respectively arranged at the upper end of the flow guide plate 5 and at both sides of the length direction of the flow guide plate, the fixing rings 51 of the same pair are sleeved at both ends of the same mounting shaft 42, a locking bolt 52 is screwed on the fixing rings 51, the locking bolt 52 is rotated to abut against the mounting shaft 42, so that the flow guide plate 5 and the fixing rings 51 are relatively fixed, a worm wheel 43 is coaxially fixed on the mounting shaft 42, a worm 41 matched with the worm wheel 43 is rotatably arranged at the lower end of the connecting rod 4, a hand wheel 44 is fixed at one end of the worm 41, and grooves 441;
because the biggest air conditioning speed that different air-out machines 1 is different, so when the unit is flowed in first installation accuse, drive worm wheel 43 through rotating worm 41 and rotate, adjust the angle between drainage plate 5 and the connecting rod 4 to adapt to different wind-force, and also can change the air conditioning flow direction and realize being applicable to different scenes through artifical the regulation, for example: in a crowded space, etc.
As shown in fig. 3 and 4, simultaneously after the permanent installation of accuse flow subassembly, produce the deposition on drainage plate 5 very easily, through rotating locking bolt 52, loosen the extrusion between locking bolt 52 and the installation axle 42, take off solid fixed ring 51 from the installation axle 42, realize the dismouting of drainage plate 5, and then conveniently pull down the back cleanness with drainage plate 5, avoid high-speed air conditioning to blow off the dust on the drainage plate 5.
As shown in fig. 5, the drainage plate 5 includes a middle plate 6 and two end plates 7, the end plates 7 are disposed on two sides of the middle plate 6 in the width direction, two ends of the middle plate 6 in the width direction are provided with slots 61, a connecting plate 71 embedded in the slots 61 extends on the end plate 7, two ends of the connecting plate 71 in the length direction extend with shaft levers 72 rotatably inserted into the middle plate 6, meanwhile, one end of the middle plate 6 in the length direction is connected with an adjusting sleeve 73 in a threaded manner, the other end is connected with a rotating sleeve 74 in a rotating manner, and the two shaft levers 72 on the same connecting plate 71 are respectively inserted into the adjusting sleeve 73 and the rotating sleeve 74;
the adjusting sleeve 73 is rotated in summer, the adjusting sleeve 73 drives the shaft rod 72 and the end plate 7 to rotate upwards, and therefore stable guiding of the cold air to flow upwards is achieved; in winter, rotate adjusting sleeve 73 for axostylus axostyle 72 and tip board 7 rotate downwards, and rotate the screw rod simultaneously, make intermediate lamella 6 and connecting rod 4 be close parallel, when high-speed heating installation blows off, can drive connecting rod 4 equally and make drainage plate 5 upwards rotate, the heating installation flows to the opposite side of drainage plate 5 guide air conditioning this moment, drainage plate 5 realizes driving the heating installation syncline below and flows, and then realizes subsiding fast of heating installation, realizes indoor intensification's purpose.
The implementation principle of the embodiment is as follows:
when the air conditioning speed is opened to the biggest to air conditioning flows along blade 2 in air outlet 11, makes air conditioning concentrate impact power piece 31, because air conditioning speed is very fast this moment, and then makes power piece 31 to the direction of keeping away from pivot 21 rotate, and then drives the rotation of power shaft 3, cam 32 and connecting rod 4 simultaneously, makes the slope of drainage plate 5 and guides high-speed air conditioning upwards to flow, avoids air conditioning to blow the personnel directly.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a controllable central air conditioning of wind direction, includes out fan (1), the lower extreme circumference of going out fan (1) is equidistant to be equipped with air outlet (11), rotate in air outlet (11) and install blade (2), its characterized in that: still including set up in play fan (1) lower extreme just is located the accuse of air outlet (11) below and flows the unit, the accuse flows the unit including be used for guiding air conditioning upflow drainage plate (5) and set up in connecting rod (4) of drainage plate (5) upper end, is located drainage plate (5) length width direction's both ends all are provided with connecting rod (4), the lower extreme that goes out fan (1) just is located air outlet (11) length direction's both sides has seted up mounting groove (12), the upper end of connecting rod (4) is rotated and is inlayed and establish in mounting groove (12), just the axis of rotation of connecting rod (4) is on a parallel with the axis of rotation of blade (2), be provided with control connecting rod (4) pivoted drive unit on play fan (1).
2. A central air conditioner with controllable wind direction according to claim 1, characterized in that: the driving unit comprises a cam (32) rotatably arranged in the mounting groove (12) and a power assembly for controlling the cam (32) to rotate, the rotating axis of the cam (32) is parallel to the rotating axis of the connecting rod (4), and the cam (32) is in sliding abutting joint with one end, far away from the drainage plate (5), of the connecting rod (4);
when the end of the cam (32) farthest away from the center of the cam is abutted to the connecting rod (4), the included angle between the connecting rod (4) and the lower end of the air outlet machine (1) is smaller than 90 degrees.
3. A central air conditioner with controllable wind direction according to claim 2, characterized in that: be provided with pivot (21) of fixed blade (2) in air outlet (11), power component includes power axle (3) coaxial with cam (32) and is fixed in power piece (31) on power axle (3), power axle (3) set up in air outlet (11), the one end slip butt that power axle (3) were kept away from in power piece (31) is on pivot (21), be provided with torsional spring (33) on power axle (3), the one end and power axle (3) of torsional spring (33) are fixed, and the other end is fixed with air-out machine (1), torsional spring (33) have the trend that orders about power piece (31) and be close to pivot (21).
4. A central air conditioner with controllable wind direction according to claim 1, characterized in that: the lower extreme of connecting rod (4) rotates to peg graft and is equipped with installation axle (42), the axis of installation axle (42) is parallel with the axis of rotation of connecting rod (4), the upper end of drainage plate (5) is fixed with the collar, the collar establishes the cooperation with the fixed cover of installation axle (42), coaxial worm wheel (43) of being fixed with on installation axle (42), it is provided with worm (41) with worm wheel (43) meshing to rotate on connecting rod (4).
5. The central air conditioner of claim 4, wherein the wind direction is controllable by: one end of the worm (41) is provided with a hand wheel (44), and grooves (441) are formed in the hand wheel (44) at intervals in the circumferential direction.
6. The central air conditioner of claim 4, wherein the wind direction is controllable by: the mounting ring is in threaded connection with a locking bolt (52), and the locking bolt (52) abuts against the mounting shaft (42).
7. The central air conditioner of claim 4, wherein the wind direction is controllable by: drainage plate (5) include intermediate lamella (6) and set up in end plate (7) of intermediate lamella (6) width direction both sides, end plate (7) all rotate to be connected on intermediate lamella (6), the axis of rotation of end plate (7) is on a parallel with the axis of rotation of connecting rod (4).
8. A central air conditioner with controllable wind direction according to claim 7, characterized in that: the clamping grooves (61) are formed in the two ends of the middle plate (6) in the width direction, the connecting plates (71) embedded in the clamping grooves (61) extend from the end plates (7), the shaft rods (72) inserted into the middle plate (6) in a rotating mode extend from the two ends of the connecting plates (71) in the length direction, one end of the middle plate (6) in the length direction is connected with an adjusting sleeve (73) in a threaded mode, the other end of the middle plate (6) in the length direction is inserted with a rotating sleeve (74) in a rotating mode, and the shaft rods (72) on the same connecting plate (71) are fixedly inserted into the adjusting sleeve (73) and the rotating sleeve (.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911025658.7A CN110848823B (en) | 2019-10-25 | 2019-10-25 | Central air conditioner with controllable wind direction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911025658.7A CN110848823B (en) | 2019-10-25 | 2019-10-25 | Central air conditioner with controllable wind direction |
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| CN110848823A true CN110848823A (en) | 2020-02-28 |
| CN110848823B CN110848823B (en) | 2021-07-20 |
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| CN111895638A (en) * | 2020-08-07 | 2020-11-06 | 周菲菲 | Building central air-conditioning air outlet |
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| CN110848823B (en) | 2021-07-20 |
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