CN210014515U - New fan - Google Patents
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- CN210014515U CN210014515U CN201920667496.6U CN201920667496U CN210014515U CN 210014515 U CN210014515 U CN 210014515U CN 201920667496 U CN201920667496 U CN 201920667496U CN 210014515 U CN210014515 U CN 210014515U
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- fan
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- air inlet
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Abstract
The utility model discloses a fresh air fan, which relates to the technical field of fresh air systems and comprises a shell component, a fan and an internal and external circulation switching component; the shell assembly is provided with an external circulation air inlet and a fresh air outlet respectively; the air inlet of the fan is positioned in the shell assembly, and the air outlet of the fan is communicated with the fresh air outlet; the internal and external circulation switching assembly is used for opening and closing the external circulation air inlet. The utility model mainly solves the problem that the common fresh air system is difficult to adapt to the requirements of small buildings; this kind of new fan's simple structure is compact, sets up casing subassembly, fan and inside and outside circulation switching module and can accomplish small building's air cycle, can effectively reduce new fan's volume, and the energy consumption is lower simultaneously, the noise is little, can adapt to small building's demand.
Description
Technical Field
The utility model relates to a new trend technical field specifically is a new fan.
Background
The fresh air system can introduce fresh air into the closed building space from the outside of the building. In the past, fresh air systems have been used in large buildings such as factories, office buildings, gymnasiums, hospitals, and the like.
In recent years, due to the demands on health and environmental protection, users want to configure a fresh air system in the space of small buildings such as houses, shops and offices, however, most of the fresh air systems commonly used in the market are designed for large buildings, and compared with the small buildings, the fresh air machine of the fresh air system has the characteristics of large volume, complex structure, high energy consumption and high noise, and is difficult to adapt to the demands of the small buildings.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a new fan, it has characteristics small, compact structure, that the energy consumption is low and the noise is little, is applicable to the small-size building space.
In order to achieve the above object, the utility model provides a following technical scheme: a new fan comprises a shell assembly, a fan and an internal and external circulation switching assembly; the shell assembly is provided with an external circulation air inlet and a fresh air outlet respectively; the air inlet of the fan is positioned in the shell assembly, and the air outlet of the fan is communicated with the fresh air outlet; the internal and external circulation switching assembly is used for opening and closing the external circulation air inlet.
In the technical scheme, the shell assembly is further provided with an internal circulation air inlet so as to realize indoor air circulation.
In the technical scheme, the internal and external circulation switching assembly comprises an action bracket, an action motor, a screw rod and a valve plate; the action motor and the screw rod are supported in the shell assembly through the action bracket; the action motor is linked with the valve plate through the screw rod and is far away from or close to the external circulation air inlet so as to open and close the external circulation air inlet.
In the above technical scheme, the internal and external circulation switching assembly further comprises a guide rod for guiding the movement of the valve plate, so that the movement of the valve plate is smoother.
In the technical scheme, a first filter screen is arranged between the air inlet of the fan and the external circulation air inlet to filter out mosquitoes, hairs and particles above PM 10; and a second filter screen is arranged between the air outlet of the fan and the fresh air outlet to filter out micro particles below PM 2.5.
In the technical scheme, a first filter screen hanging frame used for supporting the first filter screen is arranged in the shell assembly, a first filter screen inserting hole is formed in the shell assembly, and the first filter screen inserting hole is communicated with the first filter screen hanging frame so as to be convenient for inserting and pulling the first filter screen; the casing assembly is internally provided with a second filter screen hanging frame used for supporting the second filter screen, the casing assembly is provided with a second filter screen jack, and the second filter screen jack is communicated with the second filter screen hanging frame so as to facilitate plugging and unplugging of the second filter screen.
In the technical scheme, the shell assembly is covered with the surface cover capable of being detached quickly.
In the technical scheme, the shell assembly is provided with the first permanent magnet, the face cover is provided with the second permanent magnet, and the first permanent magnet is matched with the second permanent magnet to enable the shell assembly to be adsorbed on the face cover.
Among the above-mentioned technical scheme, new trend air outlet department is equipped with anion emitter to improve the anion content of new trend.
In the above technical scheme, a control panel assembly is arranged on the shell assembly, and the control panel assembly is in signal connection with the fan and the internal and external circulation switching assembly respectively.
Compared with the prior art, the beneficial effects of the utility model are that: according to the novel fan, the shell assembly is respectively provided with the external circulation air inlet and the fresh air outlet, the air inlet of the fan is positioned in the shell assembly, the air outlet of the fan is communicated with the fresh air outlet, and the internal and external circulation switching assembly is used for opening and closing the external circulation air inlet; this kind of new fan's simple structure is compact, sets up casing subassembly, fan and inside and outside circulation switching module and can accomplish small building's air cycle, can effectively reduce new fan's volume, and the energy consumption is lower simultaneously, the noise is little, can adapt to small building's demand.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective view of the present invention in another direction.
Fig. 3 is a perspective view of the utility model after the cover is opened.
Fig. 4 is an internal structure view of the present invention.
Fig. 5 is an exploded view of the present invention.
Fig. 6 is a perspective view of the internal and external circulation switching assembly of the present invention.
Fig. 7 is a schematic view of the external circulation air inlet of the present invention when it is closed.
Fig. 8 is a schematic view of the external circulation air inlet of the present invention when opened.
The reference signs are: 1. a housing assembly; 11. a main housing; 12. a front shell plate; 121. a first circular hole; 122. a first permanent magnet caulking groove; 123. a first permanent magnet; 13. an external circulation air inlet; 14. a fresh air outlet; 15. an internal circulation air inlet; 16. a first filter screen hanger; 17. a first filter screen jack; 18. a second filter screen hanger; 19. a second filter screen jack; 10. a partition wall; 101. a notch; 2. a fan; 21. an air inlet; 22. an air outlet; 3. an internal and external circulation switching assembly; 31. an action bracket; 32. an action motor; 33. a screw rod; 34. a valve plate; 341. a perforation; 35. a guide bar; 36. a guide sleeve; 4. a first filter screen; 5. a second filter screen; 6. a face cover; 61. a second permanent magnet; 62. a second permanent magnet caulking groove; 63. a second circular hole; 71. a negative ion emitter; 72. a negative ion power supply; 81. a control panel; 82. a main control board; 9. and reserving an air inlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, a fresh air machine includes a housing assembly 1, a fan 2, and an internal and external circulation switching assembly 3.
The housing assembly 1 includes a main housing 11 and a front housing plate 12; the main shell 11 is an engineering plastic shell or a metal shell, and a cavity is formed inside the main shell; a partition wall 10 is arranged at the upper part of the main shell 11, the partition wall 10 divides the main shell 11 into an upper space and a lower space, wherein the volume of the space above the partition wall 10 is smaller than that of the space below the partition wall 10, and a square notch 101 is formed in the partition wall 10; the front shell plate 12 is an engineering plastic plate or a metal plate, and a first round hole 121 is formed in the front shell plate 12; the front housing plate 12 is fixed to the main housing 11 by screws, and constitutes the housing assembly 1.
The back of a main shell 11 of the shell component 1 is provided with an external circulation air inlet 13, and the external circulation air inlet 13 is a circular hole; the top surface of the main casing 11 of the casing assembly 1 is provided with a fresh air outlet 14, and the fresh air outlet 14 is a grid-shaped hole grid formed by a plurality of rows of strip-shaped holes.
The fan 2 is a turbine fan, an air inlet 21 of the fan 2 is positioned on the top surface of the fan 2, and an air outlet 22 is positioned on the side surface of the fan 2; the motor of the fan 2 is powered on to drive the impeller of the fan 2 to rotate, so as to disturb air, and the air inlet 21 of the fan 2 can draw in air and discharge the air from the air outlet 22.
The body of the fan 2 is fixedly arranged in the main shell 11 and is positioned in the space below the partition wall 10, wherein the air inlet 21 of the fan 2 faces the front shell plate 12, the air outlet 22 of the fan 2 is abutted against the partition wall 10 and aligned with the notch 101 of the partition wall 10, and the air outlet 22 of the fan 2 is communicated with the space above the partition wall 10 through the notch 101 of the partition wall 10; after the assembly is completed, the air inlet 21 of the fan 2 is located in the housing assembly 1, and the air outlet 22 of the fan 2 is communicated with the fresh air outlet 14 through the space above the partition wall 10.
Further, the bottom surface of the main housing 11 of the housing assembly 1 is provided with an internal circulation air inlet 15, and in this embodiment, the internal circulation air inlet 15 is a hole grid formed by a single row of elongated holes.
Referring to fig. 6-8, the internal and external circulation switching assembly 3 is used for opening and closing the external circulation air inlet 13; the internal and external circulation switching assembly 3 includes an actuating bracket 31, an actuating motor 32, a screw 33, and a valve plate 34.
The action bracket 31 is a bridge-shaped bracket made of engineering plastics or metal materials, is fixed in the main shell 11 and spans the external circulation air inlet 13; the action motor 32 is a small direct current motor, and the screw rod 33 is made of engineering plastics or metal materials; the action motor 32 and the screw rod 33 are both supported in the shell assembly 1 through the action bracket 31, specifically, the action motor 32 is fixed on the top surface of the action bracket 31, and one end of the screw rod 33 is arranged on the bottom surface of the action bracket 31 in a penetrating way; the rotating shaft of the actuating motor 32 is coaxially connected with the screw rod 33, so that the actuating motor 32 can drive the screw rod 33 to rotate; the valve plate 34 is a circular engineering plastic plate or a circular metal plate, the middle part of the valve plate 34 is provided with a tooth hole 341, the edge of the tooth hole 341 is an engaging tooth extending towards the inside of the tooth hole 341, and the screw rod 33 penetrates into the tooth hole 341 and is engaged with the engaging tooth of the tooth hole 341; after the action motor 32 is started, the screw rod 33 rotates, and the screw rod 33 is matched with the meshing teeth of the tooth hole 341 to drive the valve plate 34 to translate along the direction of the screw rod 33.
The action motor 32 drives the valve plate 34 to be far away from or close to the external circulation air inlet 13 through the screw rod 33 so as to open and close the external circulation air inlet 13, specifically, the action motor 32 rotates forwards so as to drive the valve plate 34 to move to the limit stroke position of the bottom end of the screw rod 33 through the screw rod 33, and the valve plate 34 covers the external circulation air inlet 13, so that air cannot enter the shell assembly 1 through the external circulation air inlet 13; after the action motor 32 rotates reversely to drive the valve plate 34 to move reversely through the screw rod 33 and leave the limit travel position of the bottom end of the screw rod 33, the valve plate 34 is far away from the external circulation air inlet 13, and air can enter the shell assembly 1 through the external circulation air inlet 13.
Further, the internal-external circulation switching assembly 3 further includes a guide rod 35 and a guide sleeve 36 for guiding the movement of the valve plate 34; a circular through hole is formed in the action bracket 31, the guide sleeve 36 is fixed at the top of the action bracket 31, and the inner cylinder of the guide sleeve 36 is coaxial with the through hole in the action bracket 31; the guide rod 35 is fixed on the valve plate 34, the guide rod 35 sequentially passes through the through hole on the action bracket 31 and the inner cylinder of the guide sleeve 36, and at the moment, the guide rod 35 is parallel to the screw rod 33; in this embodiment, two guide rods 35 and two guide sleeves 36 are arranged on both sides of the screw rod 33.
A first filter screen 4 is arranged between the air inlet 21 of the fan 2 and the external circulation air inlet 13; the first filter screen 4 is a G4 grade primary filter screen, the filter material of which is non-woven fabric, glass fiber and the like, and is used for filtering mosquitoes, hairs and particulate matters above PM10 sucked into the shell assembly 1 from the external circulation air inlet 13; in this embodiment, the first filter 4 is transversely fixed in the housing assembly 1 and located between the body of the fan 2 and the external circulation air inlet 13; the service life of the first filter screen 4 is 1-2 months.
Further, a first filter screen hanging frame 16 used for supporting the first filter screen 4 is arranged in the shell component 1, the first filter screen hanging frame 16 is a square frame body matched with the shape of the first filter screen 4, the first filter screen hanging frame 16 and the main shell 11 are integrally formed, the first filter screen hanging frame 16 is transversely arranged between the body of the fan 2 and the external circulation air inlet 13, and the first filter screen 4 can be inserted into the first filter screen hanging frame 16; a first filter screen jack 17 is formed in the front shell plate 12 of the shell component 1, and the first filter screen jack 17 is a strip-shaped hole; preceding housing plate 12 is fixed behind main casing body 11, and first filter screen jack 17 communicates first filter screen stores pylon 16, and the user can insert first filter screen 4 into first filter screen stores pylon 16 through first filter screen jack 17, also can extract first filter screen 4 from first filter screen stores pylon 16 through first filter screen jack 17, need not to dismantle preceding housing plate 12.
A second filter screen 5 is arranged between the air outlet 22 of the fan 2 and the fresh air outlet 14; the second filter screen 5 is an H13-grade high-efficiency filter screen, the filter material of the second filter screen is superfine glass fiber filter paper or polypropylene filter paper, the filtering efficiency of the second filter screen 5 reaches more than 99.97 percent, and the second filter screen 5 is used for filtering micro particles below PM2.5 discharged from the air outlet 22 of the fan 2; in this embodiment, the second filter 5 is transversely fixed in the casing assembly 1 and is located between the air outlet 22 of the fan 2 and the fresh air outlet 14, i.e., a space above the partition wall 10; the service life of the second filter screen 5 is 6-12 months.
Further, a second filter screen hanging frame 18 used for supporting the second filter screen 5 is arranged in the shell component 1, the second filter screen hanging frame 18 is a square frame body matched with the shape of the second filter screen 5, the second filter screen hanging frame 18 and the main shell 11 are integrally formed, the second filter screen hanging frame 18 is transversely arranged between the air outlet 22 of the fan 2 and the fresh air outlet 14, and the second filter screen 5 can be inserted into the second filter screen hanging frame 18; a second filter screen jack 19 is formed in the front shell plate 12 of the shell component 1, and the second filter screen jack 19 is a strip-shaped hole; preceding housing plate 12 is fixed behind main casing body 11, and second filter screen jack 19 intercommunication second filter screen stores pylon 18, and the user can insert second filter screen 5 into second filter screen stores pylon 18 through second filter screen jack 19, also can extract second filter screen 5 from second filter screen stores pylon 18 through second filter screen jack 19, need not to dismantle preceding housing plate 12.
The upper cover of the shell component 1 is provided with a surface cover 6 which can be quickly detached, the surface cover 6 is a cover plate made of engineering plastics or metal materials, and the surface cover 6 is provided with a second round hole 63.
Specifically, four first permanent magnet caulking grooves 122 are formed in the front shell plate 12 of the shell assembly 1, a first permanent magnet 123 is embedded in each first permanent magnet caulking groove 122, the first permanent magnet 123 is fixed in the first permanent magnet caulking groove 122 through screws or adhesive, four second permanent magnet caulking grooves 62 are formed in the back of the face cover 6, a second permanent magnet 61 is embedded in each second permanent magnet caulking groove 62, the second permanent magnet 61 is fixed in the second permanent magnet caulking groove 62 through screws or adhesive, and the positions of the first permanent magnet 123 and the second permanent magnet 61 are matched, so that the front shell plate 12 of the shell assembly 1 can adsorb the face cover 6; during normal use, face lid 6 adsorbs on preceding housing plate 12 through first permanent magnet 123 and second permanent magnet 61, and when first filter screen 4 and second filter screen 5 need be changed, the user only need take off face lid 6, can expose first filter screen jack 17 and second filter screen jack 19 to conveniently change first filter screen 4 and second filter screen 5.
The new fan also comprises an anion component, wherein the anion component comprises an anion emitter 71 and an anion power supply 72; the negative ion power supply 72 is fixed in the main shell 11 and located beside the fan 2, the negative ion emitter 71 is arranged at the fresh air outlet 14, and specifically, the negative ion emitter 71 is fixed between the second filter screen 5 and the fresh air outlet 14; the negative ion power supply 72 is electrically connected with the negative ion emitter 71; the negative ion component can improve the content of negative ions in fresh air discharged from the fresh air outlet 14.
A control panel assembly is arranged on the shell assembly 1, and comprises a control panel 81 and a main control panel 82; the control panel 81 is one of a touch screen, a touch panel or a key panel, and the control panel 81 is in a shape of a circular plate; main control panel 82 is based on the singlechip, and control panel 81 establishes in the preceding shell plate 12 outside of casing subassembly 1, and control panel 81 covers first round hole 121 from the preceding shell plate 12 outside, and main control panel 82 establishes in the preceding shell plate 12 of casing subassembly 1 is inboard, and main control panel 82 covers first round hole 121 from the preceding shell plate 12 is inboard, and control panel 81 and main control panel 82 signal connection. When the face cover 6 is covered on the housing assembly 1, the control panel 81 passes through the second round hole 63 of the face cover 6.
Control panel assembly's main control board 82 respectively with fan 2 and the interior extrinsic cycle switching module 3 action motor 32 signal connection, in order to control fan 2's rotational speed through control panel 81, and then control this kind of new fan's amount of wind, and control action motor 32's action through control panel 81, and then control opening and closing of extrinsic cycle air intake 13, fan 2's rotational speed feedback to main control board 82, main control board 82 feeds back fan 2's rotational speed to control panel 81, thereby show this kind of new fan's amount of wind on control panel 81.
Furthermore, a reserved air inlet 9 is formed in the side face of the main shell 11, the reserved air inlet 9 is communicated with the inside of the main shell 11, and in the embodiment, two reserved air inlets 9 are arranged on the left side and the right side of the main shell 11 respectively; the reserved air inlet 9 is arranged and is connected with an outdoor pipeline or is directly communicated with indoor air through the reserved air inlet 9, so that the air inlet volume of the fan 2 is increased, and a better air circulation effect is obtained.
When the new fan is installed, the new fan is hung and installed in a building, the outdoor space is communicated with the external circulation air inlet 13 through the outdoor pipeline, and the outdoor pipeline is connected into the external circulation air inlet 13 from the back of the main shell 11.
When the novel fan is used, after the novel fan is electrified, a user presses a power switch on the control panel 81, the fan 2 operates, and the fan 2 enters air from the air inlet 21, so that negative pressure is generated in a space below the partition wall 10; when a user needs air external circulation, after a corresponding button on the control panel 81 is pressed, the main control panel 82 sends a motor reversal signal to the action motor 32, the action motor 32 reverses and drives the valve plate 34 to move, the valve plate 34 leaves the limit stroke position at the bottom end of the screw rod 33, namely the valve plate 34 is far away from the external circulation air inlet 13, the external circulation air inlet 13 is opened, and air can enter the shell assembly 1 through the external circulation air inlet 13; when a user needs air internal circulation, after a corresponding button on the control panel 81 is pressed, the main control panel 82 sends a motor forward rotation signal to the action motor 32, the action motor 32 rotates forward and drives the valve plate 34 to move to the limit travel position of the bottom end of the screw rod 33, at the moment, the valve plate 34 covers the external circulation air inlet 13, air cannot enter the shell assembly 1 through the external circulation air inlet 13, and indoor air enters the shell assembly 1 through the internal circulation air inlet 15; after negative pressure is generated in the space below the partition wall 10, outdoor air or indoor air is pumped into the space below the partition wall 10, mosquitoes, hairs and particles above PM10 are filtered by the first filter screen 4, then enter the fan 2 from the air inlet 21, are discharged from the air outlet 22 of the fan 2, then tiny particles below PM2.5 are filtered by the second filter screen 5, and then negative ions are obtained by the negative ion emitter 71 and finally discharged from the fresh air outlet 14 to enter the interior of a building; in the above process, the user presses the corresponding button on the control panel 81, and the main control panel 82 controls the rotating speed of the fan 2 by adjusting the PWM mode, so as to control the air volume of the new fan.
According to the novel fan, the shell component 1 is respectively provided with the external circulation air inlet 13 and the fresh air outlet 14, the air inlet 21 of the fan 2 is positioned in the shell component 1, the air outlet 22 of the fan 2 is communicated with the fresh air outlet 14, and the internal and external circulation switching component 3 is used for opening and closing the external circulation air inlet 13; this kind of new fan's simple structure is compact, sets up housing assembly 1, fan 2 and inside and outside circulation switch module 3 and can accomplish small building's air cycle, can effectively reduce new fan's volume, and the energy consumption is lower simultaneously, the noise is little, can adapt to small building's demand.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A new fan is characterized by comprising a shell assembly, a fan and an internal and external circulation switching assembly;
the shell assembly is provided with an external circulation air inlet and a fresh air outlet respectively;
the air inlet of the fan is positioned in the shell assembly, and the air outlet of the fan is communicated with the fresh air outlet;
the internal and external circulation switching assembly is used for opening and closing the external circulation air inlet.
2. The new fan according to claim 1, characterized in that: an internal circulation air inlet is also formed in the shell assembly.
3. A new fan according to claim 1 or 2, characterised in that: the internal and external circulation switching assembly comprises an action bracket, an action motor, a screw rod and a valve plate;
the action motor and the screw rod are supported in the shell assembly through the action bracket;
the action motor is linked with the valve plate through the screw rod and is far away from or close to the external circulation air inlet so as to open and close the external circulation air inlet.
4. A new fan according to claim 3, characterised in that: the internal and external circulation switching assembly further comprises a guide rod for guiding the movement of the valve plate.
5. The new fan according to claim 1, characterized in that: a first filter screen is arranged between the air inlet of the fan and the external circulation air inlet;
and a second filter screen is arranged between the air outlet of the fan and the fresh air outlet.
6. The new fan according to claim 5, characterized in that: a first filter screen hanging rack used for supporting the first filter screen is arranged in the shell component,
the shell component is provided with a first filter screen jack,
the first filter screen jack is communicated with the first filter screen hanging frame;
a second filter screen hanging rack used for supporting the second filter screen is arranged in the shell component,
the shell component is provided with a second filter screen jack,
and the second filter screen jack is communicated with the second filter screen hanging frame.
7. The new fan according to any one of claims 1, 5 or 6, wherein: the shell assembly is covered with a surface cover capable of being detached quickly.
8. The new fan according to claim 7, characterized in that: the shell component is provided with a first permanent magnet, the surface cover is provided with a second permanent magnet, and the first permanent magnet is matched with the second permanent magnet to enable the shell component to be capable of adsorbing the surface cover.
9. The new fan according to claim 1, characterized in that: and a negative ion emitter is arranged at the fresh air outlet.
10. The new fan according to claim 1, characterized in that: and the shell assembly is provided with a control panel assembly, and the control panel assembly is in signal connection with the fan and the internal and external circulation switching assembly respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920667496.6U CN210014515U (en) | 2019-05-10 | 2019-05-10 | New fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920667496.6U CN210014515U (en) | 2019-05-10 | 2019-05-10 | New fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210014515U true CN210014515U (en) | 2020-02-04 |
Family
ID=69316679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920667496.6U Active CN210014515U (en) | 2019-05-10 | 2019-05-10 | New fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN210014515U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112484198A (en) * | 2020-12-01 | 2021-03-12 | 哈尔滨蜜国郎物业有限公司 | Intelligent fresh air system |
| CN113623736A (en) * | 2021-07-19 | 2021-11-09 | 重庆美的制冷设备有限公司 | Air conditioner control method and device and storage medium |
-
2019
- 2019-05-10 CN CN201920667496.6U patent/CN210014515U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112484198A (en) * | 2020-12-01 | 2021-03-12 | 哈尔滨蜜国郎物业有限公司 | Intelligent fresh air system |
| CN112484198B (en) * | 2020-12-01 | 2022-01-18 | 广州朗思威环境科技股份有限公司 | Intelligent fresh air system |
| CN113623736A (en) * | 2021-07-19 | 2021-11-09 | 重庆美的制冷设备有限公司 | Air conditioner control method and device and storage medium |
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