CN108591102A - Blower fan structure and airhandling equipment including it - Google Patents
Blower fan structure and airhandling equipment including it Download PDFInfo
- Publication number
- CN108591102A CN108591102A CN201810610820.0A CN201810610820A CN108591102A CN 108591102 A CN108591102 A CN 108591102A CN 201810610820 A CN201810610820 A CN 201810610820A CN 108591102 A CN108591102 A CN 108591102A
- Authority
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- China
- Prior art keywords
- air
- shell
- fan blade
- motor
- blower fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000009467 reduction Effects 0.000 claims description 6
- 238000005119 centrifugation Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 abstract description 2
- 230000004308 accommodation Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 241000276425 Xiphophorus maculatus Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
-
- 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
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of blower fan structure and including its airhandling equipment.Blower fan structure includes shell, motor, air-breathing fan blade and exhaust fan blade, the motor, air-breathing fan blade and exhaust fan blade are arranged in the shell, the air-breathing fan blade and the exhaust fan blade are arranged on the output shaft of the motor, it is formed with fan air channel in the shell, air is entered through the air-breathing fan blade in the fan air channel, is then discharged to outside the fan air channel through the exhaust fan blade.Blower fan structure provided by the invention includes air-breathing fan blade and exhaust fan blade, the air-flow entered in fan air channel is accelerated by air-breathing fan blade, accelerated again by being vented the air-flow in fan blade convection current blowing machine air duct, from air velocity is made faster, also makes the air quantity bigger of blower fan structure offer.
Description
Technical field
The present invention relates to wind turbine correlative technology field, especially a kind of blower fan structure and the airhandling equipment including it.
Background technology
Then the airhandling equipments such as air-conditioning or clarifier need to draw air into equipment handle again to air
By treated, air is discharged, for example, air-conditioning can be freezed or be heated to air, clarifier can be filtered air
Remove the impurity and harmful substance in air.
It is to improve the more commonly used mode of airhandling equipment performance to increase air quantity, it will usually multiple wind be arranged in equipment
Machine is to improve wind speed, for example, intake and wind speed of the wind turbine for improving equipment is arranged in the air inlet in equipment, then
One wind turbine, air output and wind speed for improving equipment are set at air outlet again, but the setting of multiple wind turbines makes equipment
Internal structure is more complicated, and I＆ M also becomes inconvenient, while multiple wind turbines can also make the energy consumption higher of equipment.
Invention content
In view of this, an object of the present invention is to provide a kind of simple in structure, it is capable of providing the air quantity of bigger and can
Make the faster blower fan structure of wind speed and the airhandling equipment including it.
In a first aspect, a kind of blower fan structure is provided, including shell, motor, air-breathing fan blade and exhaust fan blade, the motor,
Air-breathing fan blade and exhaust fan blade are arranged in the shell, and the air-breathing fan blade and the exhaust fan blade are arranged in the motor
On output shaft, fan air channel is formed in the shell, air is entered through the air-breathing fan blade in the fan air channel, then
It is discharged to outside the fan air channel through the exhaust fan blade.
Preferably, the motor be dual-axle motor, including motor body and respectively to the motor body both sides extension
First motor axis and the second motor shaft, the air-breathing fan blade are arranged on the first motor axis, and the exhaust fan blade setting exists
On second motor shaft.
Preferably, the air-breathing fan blade is centrifugation blade, and/or, the exhaust fan blade is axial-flow leaf.
Preferably, the blower fan structure further includes electric motor mounting structure and motor cover board, and the electric motor mounting structure is in recessed
Slot structure forms the installation space for installing the motor body between the motor cover board and the electric motor mounting structure.
Preferably, the shell includes first shell, the first shell structure cylindrical in shape, and the electric motor mounting structure connects
It is connected on the position of the first end close to the first shell, is formed and is supplied between the electric motor mounting structure and the first shell
The channel of airflow.
Preferably, the second end of the first shell constitutes the exhaust outlet of the blower fan structure, the exhaust ports setting
There is air discharge grille.
Preferably, the shell further includes second shell, the second shell structure cylindrical in shape, and the of the second shell
One end is connect with the first end of the first shell.
Preferably, the air-breathing fan blade is located in the second shell, and the air-breathing fan blade is interior with the second shell
There is gap in wall, the gap constitutes the channel for airflow radially.
Preferably, noise reduction layer is provided on the second shell inner wall, the noise reduction layer includes sponge and/or froth bed.
Preferably, the second end of the second shell is formed with throat structure, and the throat structure constitutes the wind turbine knot
The air entry of structure.
Second aspect provides a kind of airhandling equipment, including above-mentioned blower fan structure.
Blower fan structure provided by the invention includes air-breathing fan blade and exhaust fan blade, by air-breathing fan blade to entering wind turbine wind
Air-flow in road is accelerated, then the air-flow by being vented fan blade convection current blowing machine air duct is accelerated, from making air velocity more
Soon, the air quantity bigger for also making blower fan structure provide.
Description of the drawings
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows blower fan structure schematic diagram provided by the invention；
Fig. 2 shows the configuration schematic diagrams of wind turbine.
Specific implementation mode
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Ability
Domain it is to be appreciated by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and attached drawing be not necessarily by than
What example was drawn.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being containing for " including but not limited to "
Justice.
In the description of the present invention, it is to be understood that, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indicating or implying relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
It is two or more.
Blower fan structure provided by the invention includes two fan blades, and two fan blades are respectively used to air-breathing and exhaust, to make wind
The air output bigger of machine, wind speed is faster.
As shown in Figure 1, 2, blower fan structure 100 provided by the invention includes suction unit and exhaust portion, the suction unit and institute
State exhaust portion connection, in the direction of the air flow, the suction unit is located at the upstream side of the exhaust portion, air by the suction unit into
Enter to inside the blower fan structure 100, is discharged after then flowing through the exhaust portion.
Specifically, the blower fan structure 100 includes motor 110, air-breathing fan blade 120 and exhaust fan blade 130, the motor
110 be dual-axle motor, including the first motor axis 112 that motor body 111 extends with the both sides for being respectively facing the motor body
With the second motor shaft 113, the first motor axis 112 and second motor shaft 113 rotate synchronously.The air-breathing fan blade 120
It is arranged on the first motor axis 112, the exhaust fan blade 130 is arranged on second motor shaft 113.In the motor
Under 110 driving effect, the air-breathing fan blade 120 and the exhaust fan blade 130 rotate synchronously, wherein the air-breathing fan blade 120
It draws air into the blower fan structure 100 and then flows to the exhaust portion, under the action of exhaust fan blade 130, gas
It is discharged after stream is accelerated.
Preferably, the air-breathing fan blade 120 is centrifugation blade, and the exhaust fan blade 130 is axial-flow leaf, the air-breathing wind
During leaf 120 and the exhaust fan blade 130 rotate synchronously, the air-breathing fan blade 120 makes the sky inside the blower fan structure 100
Atmospheric pressure increases, to make to flow to the exhaust fan blade 130 after air-flow is accelerated, the exhaust fan blade 130 make air velocity into
After one step is accelerated, make air-flow outflow out of the blower fan structure 100, speed when by two-stage accelerating that air-flow is made to flow out faster,
The distance of flowing can be farther, to increase the air quantity by the blower fan structure 100, makes the performance of the blower fan structure 100 more
It is good.
The blower fan structure 100 further includes motor mounting part 140, and the motor mounting part 140 is for installing the motor
Main body 111, it is preferable that further include motor cover 150, the motor mounting part 140 is in groove structure, the motor cover 150 and institute
The assembly of motor mounting part 140 is stated, is formed between the motor mounting part 140 and the motor cover 150 for installing the electricity
The installation space of owner's body 111.The first motor axis 112 of the motor 110 is located at the electricity across the motor mounting part 140
First side of machine mounting portion 140, and connect with the air-breathing fan blade 120, second motor shaft 113 passes through the motor cover
150 are located at the second side of the electric motor mounting structure, and are connect with the exhaust fan blade 130.The motor cover 150 and the electricity
The setting of machine mounting portion 140 makes the motor body 111 be located in the environment of relative closure, can avoid the motor body
111 are polluted by dust, hair or the other impurities carried in air-flow, keep the cleaning of the motor body 111, so as to
To ensure that the motor 110 can be with good performance.
The blower fan structure 100 further includes first shell 160,160 structure cylindrical in shape of the first shell, preferably cylinder
Shape structure, it is preferable that the electric motor mounting structure 140 is connected in the first shell 160.Further, the motor peace
Dress portion 140 is connect by dowel with the first shell 160, and the dowel setting is multiple, between multiple dowels
It is spaced apart, make to form the channel flowed through for air-flow between the motor mounting part 140 and the first shell 160.It is excellent
The motor mounting part 140 is connected to the first end in the first shell 160 in its axial direction by selection of land, the dowel
Inner wall on, so that part of the first shell 160 far from its first end is formed accommodation space, the accommodation space can be used in
The exhaust fan blade 130 is accommodated, the exhaust fan blade 130 constitutes the exhaust portion with the first shell 160.Further,
The motor mounting part 140 is presented axially in the outside of the first shell 160, can be to avoid the motor mounting part 140
160 inner space of the first shell is occupied, to make the size of the first shell 160 in the axial direction can be with smaller.It is described
When air-breathing fan blade 120 is installed, the motor mounting part 140 can partly be extend into inside the air-breathing fan blade 120, to make
It states first motor axis 112 and the connection of the air-breathing fan blade 120 is more convenient, also make the axial ruler of the first motor axis 112
It is very little can be with smaller, and then reduce the size of the blower fan structure 100 in the axial direction.Further, the motor 110 is made to install
Afterwards, the axis collinear of the axis and the first shell 160 of the second motor shaft 113 of the motor 110, to avoid described
One shell 160 impacts the rotation of the exhaust fan blade 130.Preferably, in other embodiments, the motor mounting part
140 can also be connect by platy structure with the first shell 160, and through-hole is arranged on the platy structure, and through-hole, which is constituted, to be supplied
The channel of airflow.Further, the first shell 160 and the motor mounting part 140 are integrally formed.
The second end of the first shell 160 constitutes exhaust outlet, it is preferable that is set at the second end of the first shell 160
It is equipped with air discharge grille 170, the air discharge grille 170 is shape grid knot identical with the end surface shape of the first shell 160
Structure, the second end that the air discharge grille 170 is connected to the first shell 160 carry out the second end of the first shell 160
Protection, prevents foreign matter from entering in the second shell 160, to play a protective role to the exhaust fan blade 130.
The blower fan structure 100 further includes second shell 180,180 structure cylindrical in shape of the second shell, the second shell
The first end of body 180 is connected to the first end of the second shell 160, and in the motor mounting part 140 and the second shell
The accommodation space for accommodating the air-breathing fan blade 120, the air-breathing fan blade 120 and the second shell are formed between body 180
180 constitute the suction unit.Preferably, the second shell 180 is circular cylinder, and the inner wall internal diameter of the second shell 180 is big
In the outer diameter of the air-breathing fan blade 120, make between having radially between the air-breathing fan blade 120 and the second shell 180
Gap, to make the gap constitute the channel for airflow.Preferably, when the air-breathing fan blade 120 is centrifugation blade, gas
The axis flowed along the centrifugal blower rotates outflow, and occurs to hit to change flowing side with the inner wall of the second shell 180
To making first shell 160 described in air flow direction.Preferably, in order to reduce air-flow generation is hit with 180 inner wall of the second shell
Noise, noise reduction layer is provided on 180 inner wall of the second shell, the noise reduction layer preferably includes spongy layer and/or foam
Layer.The second end (end i.e. far from the first shell 160) of the second shell 180 constitutes air entry, the air entry
It is opposite with the air inlet of the air-breathing fan blade 120.Preferably, the second shell 180 forms throat structure at second end
181, the throat structure 181 constitutes the air entry, i.e., so that its internal diameter is reduced in the second end of the second shell 180, with
Just corresponding with the air inlet on the air-breathing fan blade 120.Further, the throat structure 181 is in the second shell 180
Axial direction on the tubular construction that is extended to form to the direction far from the second shell 180, the throat structure 181 and described the
The diameter of two shells, 180 junction is equal to the diameter of the second shell 180, and the throat structure 181 is far from the second shell
The diameter of the end of body 180 is less than 180 diameter of the second shell, and the side wall of the throat structure 181 is to its diameter
It protrudes inwardly so that the internal face of the throat structure 181 forms curved surface in the axial direction, to be oriented to air-flow.Alternatively,
In other embodiments, the throat structure 181 can also be extended to form to the inside of the second shell 180.
Preferably, air-inlet grille (not shown) can also be set in the second end of the second shell 180, it is described
Air-inlet grille is arranged on the throat structure 181, protects the air entry, foreign matter is avoided to enter the second shell
In body 180, so as to play a protective role to the air-breathing fan blade 120.
Further, the junction of the first shell 160 and the second shell 180 is to be tightly connected, described first
Shell 160 and the second shell 180 constitute the fan air channel of the blower fan structure 100, the motor 110, air-breathing fan blade 120
It is respectively positioned in the fan air channel of the wind turbine 100 with the exhaust fan blade 130.Under the action of air-breathing fan blade 120, air
It is entered in the second shell 180 by the throat structure 181 in the second shell 180, and by the air-breathing fan blade
The flow velocity of 120 pairs of air flows to after accelerating in the first shell 160, then to sky under the action of exhaust fan blade 130
The flow velocity of gas is discharged after again speeding up by the second end of the first shell 160.
The present invention also provides a kind of airhandling equipment, the airhandling equipment is internally provided with the blower fan structure
100, the blower fan structure 100 is arranged in the air duct in the airhandling equipment, and the air-breathing fan blade 120 is located at close to institute
The position of the air inlet in air duct is stated, the exhaust fan blade 130 is located at close to the side of the air duct gas outlet.Preferably, described
Airhandling equipment includes air-conditioning, air purifier etc..
Blower fan structure provided by the invention synchronizes two different types of fan blades of driving by a motor, can synchronize reality
Existing air-breathing and exhaust, so as to so that air-flow flow velocity bigger, the air quantity that blower fan structure provides also bigger.Also, due to two
Fan blade is driven by the same motor so that and the structure of blower fan structure is simpler, easier for installation, but also blower fan structure
Energy consumption is lower.
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each preferred embodiment can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is merely exemplary, and not restrictive, without departing from the basic of the present invention
In the case of principle, those skilled in the art can be directed to the various apparent or equivalent modification or replace that above-mentioned details be made
It changes, is all included in scope of the presently claimed invention.
Claims (11)
1. a kind of blower fan structure, which is characterized in that including shell, motor, air-breathing fan blade and exhaust fan blade, the motor, air-breathing
Fan blade and exhaust fan blade are arranged in the shell, and the motor in the motor is arranged in the air-breathing fan blade and the exhaust fan blade
On axis, fan air channel is formed in the shell, air is entered through the air-breathing fan blade in the fan air channel, then through institute
Exhaust fan blade is stated to be discharged to outside the fan air channel.
2. blower fan structure according to claim 1, which is characterized in that the motor is dual-axle motor, including motor body
The first motor axis and the second motor shaft extended respectively to the motor body both sides, air-breathing fan blade setting is described the
On one motor shaft, the exhaust fan blade is arranged on second motor shaft.
3. blower fan structure according to claim 1, which is characterized in that the air-breathing fan blade is centrifugation blade, and/or, institute
It is axial-flow leaf to state exhaust fan blade.
4. blower fan structure according to claim 2, which is characterized in that the blower fan structure further include electric motor mounting structure and
Motor cover board, the electric motor mounting structure are in groove structure, are formed and are used between the motor cover board and the electric motor mounting structure
In the installation space for installing the motor body.
5. blower fan structure according to claim 4, which is characterized in that the shell includes first shell, the first shell
Body structure cylindrical in shape, the electric motor mounting structure are connected to the position of the first end close to the first shell, the motor
The channel for airflow is formed between mounting structure and the first shell.
6. blower fan structure according to claim 5, which is characterized in that the second end of the first shell constitutes the wind turbine
The exhaust outlet of structure, the exhaust ports are provided with air discharge grille.
7. blower fan structure according to claim 5, which is characterized in that the shell further includes second shell, and described second
Shell structure cylindrical in shape, the first end of the second shell are connect with the first end of the first shell.
8. blower fan structure according to claim 7, which is characterized in that the air-breathing fan blade is located in the second shell,
There is gap in the air-breathing fan blade and the inner wall of the second shell, the gap is constituted for the logical of airflow radially
Road.
9. blower fan structure according to claim 8, which is characterized in that it is provided with noise reduction layer on the second shell inner wall,
The noise reduction layer includes sponge and/or froth bed.
10. blower fan structure according to claim 8, which is characterized in that the second end of the second shell is formed with necking
Structure, the throat structure constitute the air entry of the blower fan structure.
11. a kind of airhandling equipment, which is characterized in that including the blower fan structure described in one of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810610820.0A CN108591102A (en) | 2018-06-14 | 2018-06-14 | Blower fan structure and airhandling equipment including it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810610820.0A CN108591102A (en) | 2018-06-14 | 2018-06-14 | Blower fan structure and airhandling equipment including it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108591102A true CN108591102A (en) | 2018-09-28 |
Family
ID=63628443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810610820.0A Pending CN108591102A (en) | 2018-06-14 | 2018-06-14 | Blower fan structure and airhandling equipment including it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108591102A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020025253A1 (en) * | 2000-08-04 | 2002-02-28 | Yukio Ozeki | Centrifugal multiblade blower |
| CN2876390Y (en) * | 2006-02-08 | 2007-03-07 | 刘运江 | Forced draft induced draft dual purpose machine |
| CN102162470A (en) * | 2011-03-02 | 2011-08-24 | 杭州日通风机有限公司 | Pipeline-type axial flow centrifugal fan and eccentric flow guiding method |
| CN105298877A (en) * | 2015-11-19 | 2016-02-03 | 株洲联诚集团有限责任公司 | Centrifugal axial flow fan |
| CN105443417A (en) * | 2015-12-31 | 2016-03-30 | 株洲联诚集团有限责任公司 | Compound cooling fan |
| CN105756973A (en) * | 2016-04-18 | 2016-07-13 | 昆明奥图环保设备股份有限公司 | Air supplying device |
| CN106287993A (en) * | 2016-10-24 | 2017-01-04 | 北京小米移动软件有限公司 | Air purifier and air channel structure thereof |
| CN208330812U (en) * | 2018-06-14 | 2019-01-04 | 珠海格力电器股份有限公司 | Blower fan structure and airhandling equipment including it |
-
2018
- 2018-06-14 CN CN201810610820.0A patent/CN108591102A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020025253A1 (en) * | 2000-08-04 | 2002-02-28 | Yukio Ozeki | Centrifugal multiblade blower |
| CN2876390Y (en) * | 2006-02-08 | 2007-03-07 | 刘运江 | Forced draft induced draft dual purpose machine |
| CN102162470A (en) * | 2011-03-02 | 2011-08-24 | 杭州日通风机有限公司 | Pipeline-type axial flow centrifugal fan and eccentric flow guiding method |
| CN105298877A (en) * | 2015-11-19 | 2016-02-03 | 株洲联诚集团有限责任公司 | Centrifugal axial flow fan |
| CN105443417A (en) * | 2015-12-31 | 2016-03-30 | 株洲联诚集团有限责任公司 | Compound cooling fan |
| CN105756973A (en) * | 2016-04-18 | 2016-07-13 | 昆明奥图环保设备股份有限公司 | Air supplying device |
| CN106287993A (en) * | 2016-10-24 | 2017-01-04 | 北京小米移动软件有限公司 | Air purifier and air channel structure thereof |
| CN208330812U (en) * | 2018-06-14 | 2019-01-04 | 珠海格力电器股份有限公司 | Blower fan structure and airhandling equipment including it |
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