CN107676300A - A kind of blade structure of industrial electric fan - Google Patents
A kind of blade structure of industrial electric fan Download PDFInfo
- Publication number
- CN107676300A CN107676300A CN201711050539.8A CN201711050539A CN107676300A CN 107676300 A CN107676300 A CN 107676300A CN 201711050539 A CN201711050539 A CN 201711050539A CN 107676300 A CN107676300 A CN 107676300A
- Authority
- CN
- China
- Prior art keywords
- blade
- angle
- edge
- blowing
- area
- 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
- 238000007664 blowing Methods 0.000 claims description 27
- 238000005452 bending Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims 1
- 241000883990 Flabellum Species 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 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
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
- F04D29/386—Skewed blades
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow 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
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
-
- 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
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of blade structure of industrial electric fan, including blade and wheel hub, root of blade are connected with wheel hub, and blade radially extends by root；Blade sets four, and each blade is symmetrically and annular is uniform；The rotary shaft of the root relativeatoeterahub of blade is obliquely installed, and mutual angle a is 40 ° 60 °；Distorted while the blade radial extension.Blade in the present invention is extended by rational gradient and clockwise twist, in conjunction with the fan blade of oar shape, reaches the air-supply effect that power is strong, air supplying distance is remote；Its air supply direction is parallel with the rotary shaft of flabellum, i.e., air supply direction is concentrated, and wind gathering power is strong；And vortex is small caused by blade tail end, therefore noise is small.
Description
Technical field
The present invention relates to a kind of electric fan, more particularly to a kind of blade structure of industrial electric fan.
Background technology
In existing Industrial fan industry, traditional flabellum typically uses two leaves or trilobed structure, and it is respectively present following
Defect：Bilobed structure, the distribution angle between blade are 180 °, when distribution angle is larger to cause the flabellum to run at high speed, caused air-flow
Gap is excessive, frequency increase, produces loud noise；Trilobed structure, caused wind-force is slow to be dissipated, does not concentrate, and blade tail end meeting
Larger vortex is produced, forms larger noise.If Chinese patent literature CN204628075U is in the disclosure on the 9th of September in 2015
A kind of streamlined Industrial fan flabellum, is specifically disclosed：Including blade and it is located at blade root and the blade tip at blade both ends, the leaf
The width of root is less than the width of blade, and the one end of the blade from close to one end of blade root to close to blade tip gradually twists,
And the width of blade is also gradually reduced, the streamlined structure in section of the blade, the one end of the blade tip away from blade to
Lower bending；Width of the blade close to one end of blade root is blade close to twice of the width of that one end of blade tip.In the structure
Blade gradient and twist due to not coordinating well, cause the working effect of flabellum not good enough, be embodied in enhancing wind
Cause noise larger while power, influence using embodiment.
Therefore, the defects of Industrial fan for above-mentioned prior art is present, it is necessary to it is optimized, so that its
Reach that wind-force is strong, and the effect that noise is low.
The content of the invention
The purpose of the present invention aim to provide it is a kind of it is simple and reasonable, caused air quantity is big, noise is small, the cost of material is low,
Wind-force uniformly, realize superpower wind gathering industrial electric fan blade structure, to overcome weak point of the prior art.
By a kind of blade structure of industrial electric fan of this purpose design, including blade and wheel hub, root of blade and wheel
Hub connects, and blade radially extends by root；The blade sets four, and each blade is symmetrically and annular is uniform；Its
It is characterised by：The rotary shaft of the root relativeatoeterahub of the blade is obliquely installed, mutual angle a be 40 ° -60 °, preferably 40 ° -
50°；Distorted clockwise or counterclockwise while the blade radial extension.
The length of the blade is d1, vane clockwise distortion makes the angle of its diverse location and wheel hub rotary shaft not
Together, wherein, in blade 1/3d1The section of position and the angle b of wheel hub rotary shaft are 60 ° -80 °, preferably 60 ° -70 °, in blade
2/3d1The section of position is 75 ° -88 °, preferably 75 ° -80 ° with the angle c of wheel hub rotary shaft.As different specific embodiments：
In same blade, the angle a is 45 °, angle b is 65 °, angle c is 79 °；Or in same blade, the angle a
Be 63 ° for 43 °, angle b, angle c be 78 °；Or in same blade, the angle a is 48 °, angle b is 68 °, angle c
For 79 °.
Structure setting of the two relative blades to cut mutually, cutting ratio e：F is 1:1、5:6、6:5、10:11 or 11:
10；The ratio between the length d1 of the blade and the Breadth Maximum d4 of blade are 25-38:5, preferably 38:5、36:5、34:5、32:5、6:
1、28:5、26:5 or 5:1.
The middle part of blade has the depression radially extended, i.e. the section of blade optional position is curved, and blade edge is equal
Rounding processing.
Division has blow area and wind gathering area on the blade, and area of blowing is arranged on the inside of blade, and wind gathering area is arranged at blade
Outside, wind gathering area relative vane turn forward, and the gradient is 1 ° -3 °.
The blade shape is tapered into again afterwards by interior become larger outward, and area of blowing is located in the structure become larger,
Wind gathering area is located in the structure tapered into.
The blade is provided with blow edge, wind-guiding edge and wind gathering edge, edge of blowing, wind-guiding edge and wind gathering edge
It is convexly curved respectively, blow edge and wind-guiding edge are bent to the opposite direction in direction of blowing respectively, and wind gathering edge is to the side of blowing
To bending, blow and described area of blowing is formed between edge and wind-guiding edge, blow described in being formed between edge and wind gathering edge
Wind gathering area.
The length d in the area of blowing2With the length d in wind gathering area3Between ratio be：1-2:1, preferably 1:1、6:5、7:5、8:
5、9:5 or 2:1.
The blade relativeatoeterahub turns forward, and the gradient is 1 ° -3 °.
Blade in the present invention is extended by rational gradient and clockwise twist, in conjunction with the fan blade of oar shape, makes it
Reach the air-supply effect that power is strong, air supplying distance is remote；Its air supply direction is parallel with the rotary shaft of flabellum, i.e., air supply direction is concentrated, and gathers
Wind-force is strong；And vortex is small caused by blade tail end, therefore noise is small.Specifically, blade profile is curved, can improve effect of blowing
Fruit, and air-flow is oriented to, make air-flow is unified to push forwards, in conjunction with blade twist shape, it can be ensured that air-flow is overall
Blow out in a spiral manner, wind-force is uniform, effectively increases and scrapes air quantity, realizes superpower wind gathering, and avoids gas collisions and send
Noise；Further, by setting wind gathering area, effectively air-flow is reached air-flow convergence effect, avoid air-flow outward toward center water conservancy diversion
It is scattered and influence using embodying, and vortex caused by wind gathering area is small, effectively reduces noise.
Brief description of the drawings
Fig. 1 is the stereogram of first embodiment of the invention.
Fig. 2 is the front view of first embodiment of the invention.
Fig. 3 is the sectional view in A1-A1 directions in Fig. 2.
Fig. 4 is the sectional view in B1-B1 directions in Fig. 2.
Fig. 5 is the sectional view in C1-C1 directions in Fig. 2.
Fig. 6 is the partial structural diagram of first embodiment of the invention.
Fig. 7 is the front view of blade in first embodiment of the invention.
Fig. 8 is the upward view of blade in first embodiment of the invention.
Fig. 9 is first embodiment of the invention fundamental diagram.
Figure 10 is the stereogram of second embodiment of the invention.
Figure 11 is the front view of second embodiment of the invention.
Figure 12 is the sectional view in A2-A2 directions in Figure 10.
Figure 13 is the sectional view in B2-B2 directions in Figure 10.
Figure 14 is the sectional view in C2-C2 directions in Figure 10.
Figure 15 is the partial structural diagram of second embodiment of the invention.
Figure 16 is the front view of blade in second embodiment of the invention.
Figure 17 is the upward view of blade in second embodiment of the invention.
Figure 18 is the stereogram of third embodiment of the invention.
Figure 19 is the front view of third embodiment of the invention.
Figure 20 is the sectional view in A3-A3 directions in Figure 18.
Figure 21 is the sectional view in B3-B3 directions in Figure 18.
Figure 22 is the sectional view in C3-C3 directions in Figure 18.
Figure 23 is the partial structural diagram of third embodiment of the invention.
Figure 24 is the front view of blade in third embodiment of the invention.
Figure 25 is the upward view of blade in third embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
First embodiment
Referring to Fig. 1-Fig. 8, a diameter of 750 ± 5%mm of flabellum for the industrial electric fan that the present embodiment is related to, the flabellum bag
Blade 1 and wheel hub 2 are included, the root of blade 1 is connected with wheel hub 2, and blade 1 radially extends by root；Blade 1 sets four,
Each blade 1 is symmetrically and annular is uniform；The rotary shaft of the root relativeatoeterahub 2 of blade 1 is obliquely installed, and mutual angle a is
45°；Clockwise twist while blade 1 radially extends；The length of blade 1 is d1For 349 ± 5%mm, the clockwise twist of blade 1
Make its diverse location different from the angle of the rotary shaft of wheel hub 2, wherein, in the 1/3d of blade 11The section of position rotates with wheel hub 2
The angle b of axle is 65 °, in the 2/3d of blade 11The section of position is 79 ° with the angle c of the rotary shaft of wheel hub 2.This structure passes through conjunction
The gradient extension of reason and clockwise twist, in conjunction with the fan blade of oar shape, reach the air-supply effect that power is strong, air supplying distance is remote
Fruit；Its air supply direction is parallel with the rotary shaft of flabellum, i.e., air supply direction is concentrated, and wind gathering power is strong, and is vortexed caused by blade tail end
It is small, therefore noise is small.
Furtherly, structure setting of the two relative blades 1 to cut mutually, (referring to Fig. 6) cutting ratio e：F is 1:1；
The ratio between the length d1 of blade 1 and the Breadth Maximum d4 of blade 1 are 38:5.
Furtherly, there is the depression radially extended at the middle part of blade 1, i.e. the section of the optional position of blade 1 is curved, blade
The equal rounding processing in 1 edge, effectively avoids making a noise during work；This arcuate structure can carry in conjunction with the distorted shape of blade 1
Height is blown effect, and air-flow is oriented to, and makes air-flow is unified to push forwards, and then ensures that air-flow integrally blows in a spiral manner
Go out, effectively increase and scrape air quantity, avoid gas collisions and make a noise.
Furtherly, referring to Fig. 7 and Fig. 8, swaying direction for blade 1 of the direction of arrow in Fig. 7, direction of blowing, Fig. 8
In the direction of arrow be air-flow conveying direction；The division of the surface of blade 1, which has, blows area 1.1 and area 1.1 of blowing of wind gathering area 1.2 is set
In the inner side of blade 1, wind gathering area 1.2 is arranged at the outside of blade 1, and blowing has cambered surface transition, wind gathering between area 1.1 and wind gathering area 1.2
The relative vane 1 of area 1.2 turns forward, and the gradient is 2 °, and as seen from Figure 8, airflow direction caused by wind gathering area 1.2 inclines to center
Tiltedly, effectively realize that air-flow converges, avoid the effect of dispersive effects air-supply outward.
Furtherly, the shape of blade 1 is tapered into again afterwards by interior become larger outward, and area 1.1 of blowing, which is located at, to be become larger
Structure on, wind gathering area 1.2 is located in the structure that tapers into；Referring to Fig. 9, air quantity caused by the maximum position of structure is maximum,
The position, which is arranged at, blows between area 1.1 and wind gathering area 1.2, effective to separate blow area 1.1 and wind gathering area 1.2, it is ensured that to blow
Area 1.1 forms columned air flow swirl in inner side when blowing, ensure that air quantity is sufficiently large, and in outside during the air-supply of wind gathering area 1.2
Coniform air flow swirl is formed, protective layer is formed to the columned air flow swirl in inner side, ensures air-supply effect stability, concentrate.
Furtherly, blade 1 is provided with and blown edge 1.3, wind-guiding edge 1.4 and wind gathering edge 1.5, edge 1.3 of blowing,
Wind-guiding edge 1.4 and wind gathering edge 1.5 are convexly curved respectively, and blow edge 1.3 and wind-guiding edge 1.4 are respectively to direction of blowing
Opposite direction bending, wind gathering edge 1.5 is to direction bending of blowing, and blowing, it is described to be formed between edge 1.3 and wind-guiding edge 1.4
Blow area 1.1, blow and described wind gathering area 1.2 is formed between edge 1.3 and wind gathering edge 1.5.
Furtherly, blow the length d in area 1.12With the length d in wind gathering area 1.23Between ratio be：2:1.
Furtherly, the relativeatoeterahub 2 of blade 1 turns forward, and the gradient is 2 °, further prevents air-flow from disperseing outward.
Second embodiment
Referring to Figure 10-Figure 17, a diameter of 650 ± 5%mm of flabellum for the industrial electric fan that the present embodiment is related to, it is different
It is in place of first embodiment：The rotary shaft of the root relativeatoeterahub 2 of blade 1 is obliquely installed, and mutual angle a is 43 °；Leaf
Clockwise twist while piece 1 radially extends；The length of blade 1 is d1For 300 ± 5%mm, the clockwise twist of blade 1 makes it not
It is different from the angle of the rotary shaft of wheel hub 2 with position, wherein, in the 1/3d of blade 11The section of position and the folder of the rotary shaft of wheel hub 2
Angle b is 63 °, in the 2/3d of blade 11The section of position is 78 ° with the angle c of the rotary shaft of wheel hub 2.
Blow the length d in area 1.12With the length d in wind gathering area 1.23Between ratio be：9:5.
Two relative blades 1 are cut mutually, cutting ratio e：F is 5:6；The length d1 of blade 1 and the Breadth Maximum of blade 1
The ratio between d4 is 32:5.
Other not described same first embodiments in part, here no longer analytic explanation.
3rd embodiment
Referring to Figure 18-Figure 25, a diameter of 500 ± 5%mm of flabellum for the industrial electric fan that the present embodiment is related to, it is different
It is in place of first embodiment：The rotary shaft of the root relativeatoeterahub 2 of blade 1 is obliquely installed, and mutual angle a is 48 °；Leaf
Clockwise twist while piece 1 radially extends；The length of blade 1 is d1For 225 ± 5%mm, the clockwise twist of blade 1 makes it not
It is different from the angle of the rotary shaft of wheel hub 2 with position, wherein, in the 1/3d of blade 11The section of position and the folder of the rotary shaft of wheel hub 2
Angle b is 68 °, in the 2/3d of blade 11The section of position is 79 ° with the angle c of the rotary shaft of wheel hub 2.
Blow the length d in area 1.12With the length d in wind gathering area 1.23Between ratio be：7:5.
Two relative blades 1 are cut mutually, cutting ratio e：F is 5:6；The length d1 of blade 1 and the Breadth Maximum of blade 1
The ratio between d4 is 5:1.
Other not described same first embodiments in part, here no longer analytic explanation.
The above-mentioned preferred scheme for the present invention, general principle, principal character and the present invention of the present invention has been shown and described
The advantages of.Those skilled in the art should be recognized that the present invention is not limited to the above embodiments, above-described embodiment and specification
Described in merely illustrate the principles of the invention, without departing from the spirit and scope of the present invention the present invention also have it is various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent define.
Claims (10)
1. a kind of blade structure of industrial electric fan, including blade (1) and wheel hub (2), blade (1) root connects with wheel hub (2)
Connect, and blade (1) radially extends by root；The blade (1) sets four, and each blade (1) is symmetrically and annular is equal
Cloth；It is characterized in that：The rotary shaft of the root relativeatoeterahub (2) of the blade (1) is obliquely installed, mutual angle a be 40 °-
60°；The blade (1) is distorted while radially extending.
2. the blade structure of industrial electric fan according to claim 1, it is characterised in that：The length of the blade (1)
For d1, blade (1) clockwise twist makes its diverse location different from the angle of wheel hub (2) rotary shaft, wherein, in blade (1)
1/3d1The section of position is 60 ° -80 ° with the angle b of wheel hub (2) rotary shaft, in blade (1) 2/3d1The section of position and wheel hub
(2) the angle c of rotary shaft is 75 ° -88 °.
3. the blade structure of industrial electric fan according to claim 2, it is characterised in that：In same blade (1), institute
State that angle a is 45 °, angle b is 65 °, angle c is 79 °；
Or in same blade (1), the angle a is 43 °, angle b is 63 °, angle c is 78 °；
Or in same blade (1), the angle a is 48 °, angle b is 68 °, angle c is 79 °.
4. the blade structure of industrial electric fan according to claim 3, it is characterised in that：Relative two blades (1) with
The structure setting cut mutually, cutting ratio e：F is 1:1、5:6、6:5、10:11 or 11:10；The length d of the blade (1)1
With the Breadth Maximum d of blade (1)4The ratio between be 25-38:5.
5. the blade structure of industrial electric fan according to claim 4, it is characterised in that：Have in the middle part of the blade (1)
The section of the depression radially extended, i.e. blade (1) optional position is curved, the equal rounding processing in blade (1) edge.
6. the blade structure of industrial electric fan according to claim 5, it is characterised in that：Divided on the blade (1)
There are area of blowing (1.1) and wind gathering area (1.2), area of blowing (1.1) are arranged on the inside of blade (1), and wind gathering area (1.2) are arranged at blade
(1) outside, wind gathering area (1.2) relative vane (1) turn forward, and the gradient is 1 ° -3 °.
7. the blade structure of industrial electric fan according to claim 6, it is characterised in that：Blade (1) shape by
After inside becoming larger outward and taper into, area of blowing (1.1) are located in the structure become larger, wind gathering area (1.2) be located at by
In the small structure of gradual change.
8. the blade structure of industrial electric fan according to claim 7, it is characterised in that：The blade (1) is provided with
Blow edge (1.3), wind-guiding edge (1.4) and wind gathering edge (1.5), edge of blowing (1.3), wind-guiding edge (1.4) and wind gathering
Edge (1.5) is convexly curved respectively, and the opposite direction of edge of blowing (1.3) and wind-guiding edge (1.4) respectively to direction of blowing is curved
Song, wind gathering edge (1.5) form described blow to direction bending of blowing between edge of blowing (1.3) and wind-guiding edge (1.4)
Area (1.1), described wind gathering area (1.2) is formed between edge of blowing (1.3) and wind gathering edge (1.5).
9. the blade structure of industrial electric fan according to claim 8, it is characterised in that：The area of blowing (1.1)
Length d2With the length d of wind gathering area (1.2)3Between ratio be：1-2:1.
10. the blade structure of the industrial electric fan according to claim any one of 1-9, it is characterised in that：The blade
(1) relativeatoeterahub (2) turns forward, and the gradient is 1 ° -3 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711050539.8A CN107676300A (en) | 2017-10-31 | 2017-10-31 | A kind of blade structure of industrial electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711050539.8A CN107676300A (en) | 2017-10-31 | 2017-10-31 | A kind of blade structure of industrial electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107676300A true CN107676300A (en) | 2018-02-09 |
Family
ID=61143749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711050539.8A Pending CN107676300A (en) | 2017-10-31 | 2017-10-31 | A kind of blade structure of industrial electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676300A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701106A (en) * | 2018-07-10 | 2020-01-17 | 亨特风扇公司 | Ceiling fan blade |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0828497A (en) * | 1994-07-11 | 1996-01-30 | Yutani Heavy Ind Ltd | Flow noise lowering structure for cooling fan |
| CN1696515A (en) * | 2004-05-03 | 2005-11-16 | 亨特风扇公司 | High efficiency ceiling fan |
| CN201396314Y (en) * | 2009-04-29 | 2010-02-03 | 廖勇勤 | Novel fan blade |
| CN102003412A (en) * | 2010-12-03 | 2011-04-06 | 陈新 | Wing shaped blade of high-pressure axial fan |
| CN202402348U (en) * | 2011-11-30 | 2012-08-29 | 冯伟东 | Blade of industrial fan |
| US20130108442A1 (en) * | 2011-10-28 | 2013-05-02 | Rosati Fratelli S.R.L. | Variable-geometry fan and method for control thereof |
| CN204628075U (en) * | 2015-04-29 | 2015-09-09 | 四川道易通门业有限公司 | Streamlined Industrial fan flabellum |
| CN204878059U (en) * | 2014-12-17 | 2015-12-16 | 依必安-派特穆尔芬根股份有限两合公司 | Blade and fan wheel |
| CN209604312U (en) * | 2017-10-31 | 2019-11-08 | 广东飞鹿电器有限公司 | A kind of blade structure of industrial electric fan |
-
2017
- 2017-10-31 CN CN201711050539.8A patent/CN107676300A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0828497A (en) * | 1994-07-11 | 1996-01-30 | Yutani Heavy Ind Ltd | Flow noise lowering structure for cooling fan |
| CN1696515A (en) * | 2004-05-03 | 2005-11-16 | 亨特风扇公司 | High efficiency ceiling fan |
| CN201396314Y (en) * | 2009-04-29 | 2010-02-03 | 廖勇勤 | Novel fan blade |
| CN102003412A (en) * | 2010-12-03 | 2011-04-06 | 陈新 | Wing shaped blade of high-pressure axial fan |
| US20130108442A1 (en) * | 2011-10-28 | 2013-05-02 | Rosati Fratelli S.R.L. | Variable-geometry fan and method for control thereof |
| CN202402348U (en) * | 2011-11-30 | 2012-08-29 | 冯伟东 | Blade of industrial fan |
| CN204878059U (en) * | 2014-12-17 | 2015-12-16 | 依必安-派特穆尔芬根股份有限两合公司 | Blade and fan wheel |
| CN204628075U (en) * | 2015-04-29 | 2015-09-09 | 四川道易通门业有限公司 | Streamlined Industrial fan flabellum |
| CN209604312U (en) * | 2017-10-31 | 2019-11-08 | 广东飞鹿电器有限公司 | A kind of blade structure of industrial electric fan |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701106A (en) * | 2018-07-10 | 2020-01-17 | 亨特风扇公司 | Ceiling fan blade |
| CN110701106B (en) * | 2018-07-10 | 2021-03-12 | 亨特风扇公司 | Ceiling fan blade |
| US11111930B2 (en) | 2018-07-10 | 2021-09-07 | Hunter Fan Company | Ceiling fan blade |
| US11566633B2 (en) | 2018-07-10 | 2023-01-31 | Hunter Fan Company | Ceiling fan blade |
| US11927196B2 (en) | 2018-07-10 | 2024-03-12 | Hunter Fan Company | Ceiling fan blade |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105756975B (en) | The axial flow blower that a kind of blade inlet edge is blown with groove structure and blade root | |
| CN205639000U (en) | Blade leading edge takes axial fan that groove structure and blade root blew | |
| CN104729041A (en) | Guide ring, air duct structure and air-conditioner indoor cabinet | |
| CN209604312U (en) | A kind of blade structure of industrial electric fan | |
| CN105332951B (en) | Spiral case for range hood | |
| CN107676300A (en) | A kind of blade structure of industrial electric fan | |
| CN107701508A (en) | A kind of flabellum of industrial electric fan | |
| CN206290484U (en) | Centrifugal impeller | |
| CN105257596B (en) | Wing shaped blade of high-pressure axial fan and Counter rotating axial flow Fan thereof | |
| CN205136124U (en) | Axial fan and axial compressor fan blade thereof | |
| CN104653515B (en) | A kind of double-suction type centrifugal fan | |
| CN106122091B (en) | With antecurvature efficient Jing Yin impeller | |
| CN107965475A (en) | A kind of noise reducing type radial fan | |
| CN107165862A (en) | Wind wheel and the refrigeration plant with it | |
| US9926081B2 (en) | Aircraft turbopropeller | |
| CN202833304U (en) | Novel fan blade structure | |
| CN103629156B (en) | A kind of central air conditioner outdoor unit but axial-flow blower of low-noise high-efficiency | |
| CN207004919U (en) | Axial flow blower 3 d impeller with leaf vein texture and splitterr vanes | |
| CN108005729A (en) | Turbo blade | |
| CN207093448U (en) | A kind of noise reducing type tubular wine wheel | |
| CN205315356U (en) | Dehumidifier and axial compressor wind channel thereof | |
| CN207315739U (en) | A kind of preceding volute tongue structure of cross flow fan | |
| CN107023513A (en) | Axial-flow windwheel and air conditioner | |
| CN207715190U (en) | Turbo blade | |
| CN204544758U (en) | Airslide disintegrating mill high-efficiency high-accuracy grading wheel structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180209 |