CN110848956A - Diffusion type air outlet device - Google Patents
Diffusion type air outlet device Download PDFInfo
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- CN110848956A CN110848956A CN201911067644.1A CN201911067644A CN110848956A CN 110848956 A CN110848956 A CN 110848956A CN 201911067644 A CN201911067644 A CN 201911067644A CN 110848956 A CN110848956 A CN 110848956A
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- air
- driving mechanism
- rotating wheel
- outlet device
- air outlet
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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
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air-Flow Control Members (AREA)
Abstract
A diffusion type air outlet device is provided with an air deflector, a main frame body and a six-dimensional driving mechanism, wherein the main frame body is used for being assembled at an air duct outlet, the inner surface of the air deflector is an air guide surface, the air guide surface is of a cambered surface structure with a middle bulge, the air guide surface gradually and continuously transits to an edge area from a central part, the air deflector is assembled on the main frame body, and the six-dimensional driving mechanism is assembled between the main frame body and the air deflector. According to the diffusion type air outlet device, the air guide plates are driven by the six-dimensional driving mechanism to move in the front-back direction, the left-right direction or the up-down direction, the diffusion depth of the air guide plates at the air duct outlets can be changed, the air outlet range is changed, and the comfort of users is improved.
Description
Technical Field
The invention relates to the technical field of air outlet equipment, in particular to a diffusion type air outlet device.
Background
With the continuous progress of science and technology and the increasing improvement of the living standard of people, household air outlet equipment such as fans, air conditioners, purifiers, humidifiers and the like become one of the most important household appliances in daily life of people.
In prior art, the air outlet exhaust wind of domestic air-out equipment all changes the air-out direction through the aviation baffle and carries out the wind-guiding or the fuselage sways the position that changes the air outlet, and the form of air-out is comparatively single, and the scope of blowing can not reasonable distribution, causes the extravagant and the poor problem of user's experience sense of air-out to often take place.
Therefore, it is necessary to provide a diffuser type air outlet device for overcoming the deficiencies of the prior art.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a diffusion type air outlet device to solve the defects of the prior art. The diffusion type air outlet device can change the diffusion depth of the air deflector at the outlet of the air duct, realize the coverage of the air outlet range of 180 degrees and improve the comfort level of a user.
The above object of the present invention is achieved by the following technical means.
A diffusion type air outlet device is provided with an air guide plate, wherein the inner surface of the air guide plate is an air guide surface, and the air guide surface is of a cambered surface structure with a convex middle part.
Preferably, the wind guide surface gradually and continuously transits from the central part to the edge area.
Preferably, the air deflector is of an axisymmetric structure.
Preferably, the air deflector is assembled at the outlet of the air duct, the caliber of one end of the outlet of the air duct is small, the caliber of the other end of the outlet of the air duct is large, and the end with the large caliber is the position where the air flow is discharged out of the air duct.
Preferably, the outlet of the air duct is in continuous transition from the end with the small caliber to the end with the large caliber.
The diffusion type air outlet device is also provided with a main frame body and a six-dimensional driving mechanism, wherein the main frame body is used for being assembled at an outlet of an air duct, the air deflector is assembled on the main frame body, the six-dimensional driving mechanism is assembled between the main frame body and the air deflector, and the six-dimensional driving mechanism drives the air deflector to move in the front-back direction, the left-right direction or the up-down direction.
Preferably, the main frame body is provided with an air duct interface used for being connected with an air duct outlet, and the six-dimensional driving mechanism is assembled on the air duct interface.
Preferably, the six-dimensional driving mechanism is provided with a support frame, a left-right driving mechanism, an up-down driving mechanism and a front-back driving mechanism, and the left-right driving mechanism, the up-down driving mechanism and the front-back driving mechanism are respectively assembled on the support frame.
Preferably, the left and right driving mechanism is provided with a first driving motor and a first rotating wheel;
the first driving motor is fixed with the air deflector, a motor shaft of the first driving motor is fixedly connected with the first rotating wheel, and the first driving motor drives the first rotating wheel to rotate;
the support frame is fixed with a first rack, and the first rack is meshed with the first rotating wheel.
According to the diffusion type air outlet device, the left and right driving mechanisms are further provided with limiting wheels, the limiting wheels are coaxially connected with the first rotating wheel, the radius of each limiting wheel is larger than that of the first rotating wheel, and the limiting wheels are attached to the side wall of the first rack.
Preferably, one surface of the air deflector, which is close to the air duct outlet, is the inner surface of the air deflector, and the surface of the air deflector, which is back to the air duct outlet, is the outer surface of the air deflector;
the first driving motor is fixed on the inner surface of the wind shield; or
The first driving motor is fixed on the outer surface of the wind shield, and a motor shaft of the first driving motor penetrates through a through hole formed in the wind shield to be fixedly assembled with the first rotating wheel.
Preferably, two sets of left and right driving mechanisms are arranged on the supporting frame in an up-down arrangement mode respectively.
Preferably, the support frame is provided with second portion, front and back sliding sleeve, front and back slide bar and third portion, front and back sliding sleeve, front and back slide bar, and the second portion is fixed in the wind channel export, and front and back sliding sleeve and second portion fixed connection, front and back slide bar slide assembly in front and back sliding sleeve, third portion and front and back slide bar fixed connection.
Preferably, the front-rear driving mechanism is provided with a second driving motor fixed to the second stationary portion, a second rotary wheel driving a second rotary wheel shaft to rotate, and a second rotary wheel engaged with a second rack fixed to the third stationary portion.
Preferably, the support frame is provided with an upper sliding rod, a lower sliding rod, an upper sliding sleeve and a lower sliding sleeve; the third portion decides and upper and lower sliding sleeve fixed connection, and the third portion is decided sliding assembly in upper and lower sliding sleeve.
Preferably, the up-down driving mechanism is provided with a third driving motor and a third rotating wheel, the third driving motor is fixed on the third portion, the third driving motor drives the third rotating wheel to rotate, and the third rotating wheel is meshed with a third rack arranged on the up-down sliding rod;
the second rack is fixed on the upper and lower sliding sleeves, the upper and lower sliding rods are fixedly connected with the upper and lower sliding sleeves,
the first rack is fixedly connected with the upper sliding rod and the lower sliding rod.
The diffusion type air outlet device is provided with an air deflector, a main frame body and a six-dimensional driving mechanism, wherein the main frame body is assembled at an air duct outlet, the inner surface of the air deflector is an air guide surface, the air guide surface is of a cambered surface structure with a convex middle part, the air guide surface is gradually and continuously transited to an edge area from a central part, the air deflector is assembled on the main frame body, and the six-dimensional driving mechanism is assembled between the main frame body and the air deflector. According to the diffusion type air outlet device, the air guide plates are driven by the six-dimensional driving mechanism to move in the front-back direction, the left-right direction or the up-down direction, the diffusion depth of the air guide plates at the air duct outlets can be changed, the air outlet range is changed, and the comfort of users is improved.
Drawings
The invention is further illustrated by means of the attached drawings, the content of which is not in any way limiting.
Fig. 1 is a schematic structural view of an air guide surface of a diffusion type air outlet device according to the present invention.
Fig. 2 is a schematic view of an air outlet channel structure of a diffusion type air outlet device according to the present invention.
Fig. 3 is a schematic view of an overall structure of a diffusion type air outlet device according to the present invention.
Fig. 4 is a schematic structural view of a support frame of a diffusion type air outlet device according to the present invention.
In fig. 1 to 4, the following are included:
an air deflector 100,
A through hole 110,
A main frame body 200,
A six-dimensional driving mechanism 300,
A left and right driving mechanism 310,
A first driving motor 311, a first rotating wheel 312, a stopper wheel 313,
A front and rear driving mechanism 320,
A second drive motor 321, a second rotating wheel 322,
An up-down driving mechanism 330,
A third drive motor 331, a third rotating wheel 332,
A supporting frame 340,
A first rack 341, a second portion 342, a front and rear sliding sleeve 343, a front and rear sliding bar 344, a third portion 345, an upper and lower sliding bar 346, an upper and lower sliding sleeve 347, a first sliding sleeve, a second sliding sleeve, a third sliding sleeve 343, a first sliding rod, a second sliding sleeve 347, a second sliding sleeve 343, a third,
Detailed Description
The invention is further described with reference to the following examples.
Example 1.
A diffusion type air outlet device, as shown in fig. 1 to 2, is provided with an air guide plate 100, an inner surface of the air guide plate 100 is an air guide surface, and the air guide surface is a cambered surface structure with a convex middle. The wind guide surface gradually transits from the central part to the edge area.
The wind that air-out equipment blew out passes through the wind-guiding face that is ARC structure from central point along the skew wall face gradually excessively to the border region, can derive the effect that tends to the horizontal air-out, cooperates the air-out passageway simultaneously, and then changes the direction of air-out through the change of aviation baffle 100 relative distance.
Specifically, the air deflector 100 is assembled at the outlet of the air duct, and one end of the outlet of the air duct has a small caliber and the other end has a large caliber, and the end with the large caliber is the position where the air flow is discharged out of the air duct. The outlet of the air duct is in continuous transition from the end with the small caliber to the end with the large caliber.
As shown in fig. 3, the diffusion type air outlet device of the present invention further includes a main frame 200 for being assembled to the outlet of the air duct, and a six-dimensional driving mechanism 300, wherein the air deflector 100 is assembled to the main frame 200, the six-dimensional driving mechanism 300 is assembled between the main frame 200 and the air deflector 100, and the six-dimensional driving mechanism 300 drives the air deflector 100 to move in the front-back, left-right, or up-down directions.
The six-dimensional driving mechanism 300 drives the air deflector 100 to move in the front-back direction, the left-right direction or the up-down direction, so that the displacement direction is changed, the diffusion depth of the air deflector 100 at the air outlet channel can be changed, and the effect of changing the air outlet range is achieved.
The direction of the wind blown out from the outlet of the air duct by the airflow is defined as the front, and the direction of the wind blown out from the opposite direction of the airflow from the front is defined as the rear; the left-right direction is defined as the direction that the wind shield shields the wind outlet and moves left or right; the direction in which the wind shield shields the wind outlet to move upwards or downwards is defined as the vertical direction.
Further, the main frame body 200 is provided with an air duct interface for connecting with an air duct outlet, and the six-dimensional driving mechanism 300 is assembled at the air duct interface.
The six-dimensional driving mechanism 300 in this embodiment is provided with a support frame 340, a left-right driving mechanism 310, an up-down driving mechanism 330, and a front-rear driving mechanism 320, and the left-right driving mechanism 310, the up-down driving mechanism 330, and the front-rear driving mechanism 320 are respectively assembled to the support frame 340.
Specifically, as shown in fig. 4, the left-right driving mechanism 310 is provided with a first driving motor 311 and a first rotating wheel 312;
the first driving motor 311 is fixed to the air deflector 100, a motor shaft of the first driving motor 311 is fixedly connected to the first rotating wheel 312, and the first driving motor 311 drives the first rotating wheel 312 to rotate; the supporting frame 340 is fixed with a first rack 341, and the first rack 341 is engaged with the first rotating wheel 312.
In the actual air outlet process, the first driving motor 311 rotates to drive the first rotating wheel 312 to rotate left and right on the first rack 341, so that the air deflector 100 is displaced left and right, left and right air outlet modes are patted back and forth within the range around the user, and the comfort of the user is improved.
According to the diffusion type air outlet device, the left and right driving mechanism 310 is further provided with a limiting wheel 313, the limiting wheel 313 is coaxially connected with the first rotating wheel 312, the radius of the limiting wheel 313 is larger than that of the first rotating wheel 312, and the limiting wheel 313 is attached to the side wall of the first rack 341.
It should be noted that the limiting wheel 313 is used for being attached to the first rack 341, so as to ensure the stability of the first rotating wheel 312 in the moving process.
In this embodiment, one surface of the air deflector 100 close to the air duct outlet is an inner surface of the air deflector, and one surface of the air deflector 100 opposite to the air duct outlet is an outer surface of the air deflector. The first drive motor 311 may be fixed to the inner surface of the windshield, or the first drive motor 311 may be fixed to the outer surface of the windshield, and the motor shaft of the first drive motor 311 is fixedly fitted to the first rotation wheel 312 through the through hole 110 provided in the windshield.
In this embodiment, the first drive motor 311 is fixedly mounted to the outer surface of the windshield. In an actual design, a person skilled in the art can set the position of the first driving motor 311 according to an actual situation, and details are not repeated here.
Specifically, the supporting frame 340 is provided with a second fixing portion 342, a front-rear sliding sleeve 343, a front-rear sliding rod 344 and a third fixing portion 345, the front-rear sliding sleeve 343 and the front-rear sliding rod 344, the second fixing portion 342 is fixed at the outlet of the air duct, the front-rear sliding sleeve 343 is fixedly connected with the second fixing portion 342, the front-rear sliding rod 344 is slidably assembled on the front-rear sliding sleeve 343, and the third fixing portion 345 is fixedly connected with the front-rear sliding rod 344.
Specifically, the front-rear driving mechanism 320 is provided with a second driving motor 321 and a second rotating wheel 322, the second driving motor 321 is fixed to the second fixing portion 342, the second driving motor 321 drives the second rotating wheel 322 to rotate, and the second rotating wheel 322 is engaged with a second rack 3471 fixed to the third fixing portion 345.
In the actual air outlet process, the second driving motor 321 fixed to the second fixing portion 342 rotates to drive the second rotating wheel 322 to rotate, so that the second rack 3471 engaged with the second rotating wheel 322 rotates back and forth, when the second driving motor 321 drives the air deflector 100 to move forward, the outlet of the air duct is continuously widened, the air outlet speed is gradually reduced, air is discharged along the edge area of the air outlet, and finally air is discharged in the vertical direction; when the second driving motor 321 drives the air guiding plate 100 to move backward, the air duct outlet becomes narrow, and the air outlet speed is high, and the air is discharged along the air guiding surface and gradually tends to the horizontal direction.
The air supply coverage in the air outlet direction within 180 degrees is realized by moving the front and back displacement distance of the air deflector 100, and the effect of swinging air outlet is achieved.
The supporting frame 340 of the embodiment is provided with an upper sliding rod 346, a lower sliding rod 346 and an upper sliding sleeve 347 and a lower sliding sleeve 347; the third fixing portion 345 is fixedly connected with the upper and lower sliding sleeves 347, and the third fixing portion 345 is slidably assembled on the upper and lower sliding sleeves 347.
The up-down driving mechanism 330 of the present embodiment is provided with a third driving motor 331 and a third rotating wheel 332, the third driving motor 331 is fixed to the third fixing portion 345, the third driving motor 331 drives the third rotating wheel 332 to rotate, and the third rotating wheel 332 is engaged with a third rack 3461 provided on the up-down sliding bar 346; the second rack 3471 is fixed on the upper and lower sliding sleeves 347, the upper and lower sliding bars 346 are fixedly connected with the upper and lower sliding sleeves 347, and the first rack 341 is fixedly connected with the upper and lower sliding bars 346.
The third driving motor 331 fixed at the third position 345 rotates to drive the third rotating wheel 332 to rotate, so that the third rack 3461 engaged with the third rotating wheel 332 moves up and down, and the upper and lower sliding bars 346 are driven to move up and down, thereby realizing the characteristics of downward outlet of hot air and upward outlet of cold air, and meeting the difference requirements of users.
The diffusion type air outlet device is provided with an air deflector 100, a main frame body 200 assembled at an air duct outlet and a six-dimensional driving mechanism 300, wherein the inner surface of the air deflector 100 is an air guide surface, the air guide surface is of a cambered surface structure with a convex middle part, the air guide surface gradually and continuously transits from a central part to an edge area, the air deflector 100 is assembled on the main frame body 200, and the six-dimensional driving mechanism 300 is assembled between the main frame body 200 and the air deflector 100. According to the diffusion type air outlet device, the left and right driving mechanism 310 drives the air deflector 100 to move left and right, so that two different air outlets can flap back and forth in the range of the user, and the comfort level is improved; the up-and-down driving mechanism 330 drives the air deflector 100 to move up and down, so that hot air can be discharged downwards, and cold air can be discharged upwards without blowing people; the front and rear driving mechanism 320 drives the air deflector 100 to move front and rear, so that the width of the air outlet duct can be changed, and the 180-degree air outlet range can be covered.
Example 2.
The utility model provides a diffusion formula air-out device, other structures are the same with embodiment 1, the difference lies in: the air deflection plates 100 are axisymmetrically configured.
In this embodiment, the air guide plate 100 is configured to be of an axisymmetric structure, and the air outlet can gradually and continuously transit from the central portion to the edge area, gradually trend to the horizontal plane, and can achieve the effect of horizontal air outlet.
In this embodiment, two sets of left and right driving mechanisms 310 are provided, and the two sets of left and right driving mechanisms 310 are respectively arranged in the upper and lower rows on the supporting frame 340. The two sets of left and right driving mechanisms 310 can simultaneously drive the first rotating wheels 312 by the first driving motor 311 to move left and right, and can generate comfortable wind by changing the displacement of the air guide plate 100 in the left and right direction.
Example 3.
In a diffuser type air outlet device, the mode of driving the air guide plate 100 to move is not limited to the mode described in embodiment 1 or 2, and may be performed by other driving modes, for example: different air outlet ranges are generated by the front and back movement of the movable telescopic air deflector 100, or a flow dividing structure is arranged at the outlet of the air duct, and the direction change is generated by the rotation of the air deflector 100 around the power failure.
It should be noted that, those skilled in the art can determine the situation according to the circumstances, and detailed descriptions are not repeated here.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (14)
1. The utility model provides a diffusion formula air-out device which characterized in that: the wind guide plate is arranged, the inner surface of the wind guide plate is a wind guide surface, and the wind guide surface is of a cambered surface structure with a convex middle part.
2. The diffuser type air outlet device according to claim 1, wherein: the wind guide surface gradually transits from the central part to the edge area.
3. The diffuser type air outlet device according to claim 1, wherein: the air deflector is in an axisymmetric structure.
4. The diffuser air outlet device according to claim 1, wherein: the air deflector is assembled at the air duct outlet, the caliber of one end of the air duct outlet is small, the caliber of the other end of the air duct outlet is large, and the end with the large caliber is the position where the air flow is discharged and leaves the air duct.
5. The diffuser type air outlet device of claim 4, wherein: the outlet of the air duct is in continuous transition from the end with the small caliber to the end with the large caliber.
6. The diffuser type air outlet device according to claim 1, wherein: the air guide plate is assembled on the main frame body, the six-dimensional driving mechanism is assembled between the main frame body and the air guide plate, and the six-dimensional driving mechanism drives the air guide plate to move in the front-back direction, the left-right direction or the up-down direction.
7. The diffuser type air outlet device of claim 6, wherein: the main frame body is provided with an air duct interface used for being connected with an air duct outlet, and the six-dimensional driving mechanism is assembled on the air duct interface.
8. The diffuser type air outlet device of claim 7, wherein: the six-dimensional driving mechanism is provided with a support frame, a left driving mechanism, a right driving mechanism, an upper driving mechanism, a lower driving mechanism and a front and back driving mechanism, wherein the left driving mechanism, the right driving mechanism, the upper driving mechanism, the lower driving mechanism and the front and back driving mechanism are respectively assembled on the support frame.
9. The diffuser type air outlet device of claim 8, wherein: the left and right driving mechanism is provided with a first driving motor and a first rotating wheel;
the first driving motor is fixed with the air deflector, a motor shaft of the first driving motor is fixedly connected with the first rotating wheel, and the first driving motor drives the first rotating wheel to rotate;
the support frame is fixed with a first rack, and the first rack is meshed with the first rotating wheel.
10. The diffuser type air outlet device of claim 9, wherein: the limiting wheel is coaxially connected with the first rotating wheel, the radius of the limiting wheel is larger than that of the first rotating wheel, and the limiting wheel is attached to the side wall of the first rack.
11. The diffuser type air outlet device of claim 10, wherein: one side of the air deflector, which is close to the air duct outlet, is the inner surface of the air deflector, and the side of the air deflector, which is back to the air duct outlet, is the outer surface of the air deflector;
the first driving motor is fixed on the inner surface of the wind shield; or
The first driving motor is fixed on the outer surface of the wind shield, and a motor shaft of the first driving motor penetrates through a through hole formed in the wind shield to be fixedly assembled with the first rotating wheel.
12. The diffuser type air outlet device of claim 11, wherein: two sets of left and right driving mechanisms are arranged on the supporting frame in an up-down arrangement mode respectively.
13. The diffuser type air outlet device according to any one of claims 8 to 12, wherein:
the supporting frame is provided with a second fixing part, a front sliding sleeve, a rear sliding sleeve, a front sliding rod, a rear sliding rod and a third fixing part, the front sliding sleeve, the rear sliding sleeve and the front sliding rod are fixed at an outlet of the air duct, the front sliding sleeve and the rear sliding sleeve are fixedly connected with the second fixing part, the front sliding sleeve and the rear sliding rod are assembled on the front sliding sleeve and the rear sliding sleeve in a sliding manner, and the third fixing;
the front and rear driving mechanism is provided with a second driving motor and a second rotating wheel, the second driving motor is fixed at the second fixed part, the second driving motor drives a second rotating wheel shaft to rotate, and the second rotating wheel is meshed with a second rack fixed at the third fixed part.
14. The diffuser type air outlet device according to any one of claims 8 to 12, wherein:
the support frame is provided with an upper sliding rod, a lower sliding rod, an upper sliding sleeve and a lower sliding sleeve;
the third fixed part is fixedly connected with the upper and lower sliding sleeves and is assembled on the upper and lower sliding sleeves in a sliding manner;
the up-down driving mechanism is provided with a third driving motor and a third rotating wheel, the third driving motor is fixed at a third fixed part, the third driving motor drives the third rotating wheel to rotate, and the third rotating wheel is meshed with a third rack arranged on the up-down sliding rod;
the second rack is fixed on the upper and lower sliding sleeves, the upper and lower sliding rods are fixedly connected with the upper and lower sliding sleeves,
the first rack is fixedly connected with the upper sliding rod and the lower sliding rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911067644.1A CN110848956A (en) | 2019-11-04 | 2019-11-04 | Diffusion type air outlet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911067644.1A CN110848956A (en) | 2019-11-04 | 2019-11-04 | Diffusion type air outlet device |
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| Publication Number | Publication Date |
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| CN110848956A true CN110848956A (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911067644.1A Pending CN110848956A (en) | 2019-11-04 | 2019-11-04 | Diffusion type air outlet device |
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| CN (1) | CN110848956A (en) |
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2019
- 2019-11-04 CN CN201911067644.1A patent/CN110848956A/en active Pending
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