CN108087334A - A kind of wind turbine and its fan blade - Google Patents
A kind of wind turbine and its fan blade Download PDFInfo
- Publication number
- CN108087334A CN108087334A CN201810102444.4A CN201810102444A CN108087334A CN 108087334 A CN108087334 A CN 108087334A CN 201810102444 A CN201810102444 A CN 201810102444A CN 108087334 A CN108087334 A CN 108087334A
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- Prior art keywords
- arc
- fan blade
- wind turbine
- shaped side
- turbine according
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- 230000005484 gravity Effects 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 13
- 239000012530 fluid Substances 0.000 description 8
- 230000003068 static effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000013515 script Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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
- F04D29/388—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
-
- 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
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
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 wind turbine and its fan blades, its key points of the technical solution are that fan blade, including the first arc-shaped side away from pivot, close to the second arc-shaped side of pivot, the three-arc-side of the first arc-shaped side of connection and second arc-shaped side the same end and the 4th side at the first arc-shaped side of connection and the second arc-shaped side residue end, the length of first arc-shaped side is more than the second arc-shaped side, and the 4th side has one section of tooth-shape structure；Wind turbine is then using this structure fan blade, so as to achieve the effect that noise reduction.
Description
Technical field
The present invention relates to wind turbine technical field, more particularly to a kind of wind turbine and its fan blade.
Background technology
Wind turbine is by the mechanical energy of input, improves gas pressure and supplies gas side by side the machinery of body, it is a kind of driven stream
Body machinery.Wind turbine is custom abbreviation of the China to gas compression and gas conveying machinery, and usually said wind turbine includes ventilation blower,
Air blower, wind-driven generator.
Wind turbine is widely used in the ventilation, dust discharge and cooling of factory, mine, tunnel, cooling tower, vehicle, ship and building,
The ventilation of boiler and industrial furnace and air inducing；Cooling and ventilation in the apparatus of air conditioning and domestic electric appliance；The baking of cereal
It does and selects and recommends, inflation and propulsion of wind-tunnel wind regime and aircushion vehicle etc..
The main structural components of wind turbine be impeller, casing, air inlet, stent, motor, belt pulley, shaft coupling, muffler,
Driving member（Bearing）Deng.
Wheel rotation after current wind turbine energization operation, but the noise generated is larger, existing common practices is to use
Thus muffler and some isolating means can increase wind turbine supernumerary structure and improve production cost, thus to the fan blade of wind turbine
And the improvement of wind turbine is necessary.
The content of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of wind turbine and its fan blade, there is drop
The advantage of low fan operation noise.
The present invention above-mentioned technical purpose technical scheme is that：A kind of fan blade of wind turbine, including
The first arc-shaped side away from pivot, the second arc-shaped side, the first arc-shaped side of connection and the second arc-shaped side close to pivot
The three-arc-side of the same end and the 4th side at the first arc-shaped side of connection and the second arc-shaped side residue end, first arc
The length on side is more than the second arc-shaped side, and the 4th side has one section of tooth-shape structure.
By above-mentioned setting, change the usual arc side design of fan blade, to the 4th side using tooth-shape structure, influence the quiet of wind turbine
The flow behavior of characteristic and surrounding air.On the basis based on the first above-mentioned arc-shaped side, the second arc-shaped side and three-arc-side
On, increasing tooth-shape structure, when fluid passes through tooth-shape structure, fluid is caused to leak, the static pressure of fan, which rises, to be declined, while uniformly
The static pressure distribution disperseed on fan blade, inhibit and reduce air return, also inhibit fan blade suction surface refluence generation, so as to
Achieve the purpose that reduce noise.
Can be preferably as concrete scheme of the invention：The tooth-shape structure has several sawtooth portions, the sawtooth portion
Width account for the 4th side length ratio range be 1/28-1/20.
By above-mentioned setting, suitable scope is chosen, can play can also reduce materials cost while reducing noise,
Since blade is using metal material, the cost-effective manufacturing being also advantageous that in enterprise.
Can be preferably as concrete scheme of the invention：The height in the sawtooth portion accounts for the ratio of the length of the first arc-shaped side
Value scope is 1/26-1/13.
By above-mentioned setting, effect is same as above and plays the role of reducing cost.
Can be preferably as concrete scheme of the invention：The sawtooth portion sets 12-20.
By above-mentioned setting, the sawtooth portion of this quantitative range can be to play the mesh for reducing noise while effectively save cost
's.
Can be preferably as concrete scheme of the invention：It is provided on fan blade at least one equidirectional with the first arc-shaped side
Bar shaped indent.
By above-mentioned setting, bar shaped indent main function is the structural strength for improving fan blade, in addition to this it is possible to help
In the guiding of fluid, change the wind pressure on fan blade.
Can be preferably as concrete scheme of the invention：It is provided on fan blade at the position of close second arc-shaped side square
Indent.
By above-mentioned setting, square indent equally further improves the structural strength of fan blade, while so that fan blade is whole
Stability improves.
Can be preferably as concrete scheme of the invention：Coated with one layer of rubber layer, the interior filling of bar shaped indent on fan blade
It is coated with thermochromic layer.
By above-mentioned setting, the coating rubber layer on fan blade, vibration can quickly pass to rubber damping material, cause
Corresponding sliding deformation inside rubber material, so as to which the kinetic energy of some mechanical vibration is converted to thermal energy, then by thermochromic layer
Color is indicated, so as to achieving the effect that damping noise reduction.
It is a further object of the present invention to provide a kind of wind turbine, include the fan blade of above-mentioned wind turbine.
By above-mentioned setting, wind turbine employs above-mentioned blade structure, has relatively low noise, sound construction is reliable, wind
Amount and wind pressure are larger.
Can be preferably as concrete scheme of the invention：Further include the casing being fixedly connected with fan blade, the casing week
It is several for groove that adjust gravity balance degree and that depth differs to being distributed with.
By above-mentioned setting, differ using to Pocket Machining depth, to adjust whole machine balancing performance, so as to improve wind turbine fortune
Capable stability is also beneficial to reduce noise.
Can be preferably as concrete scheme of the invention：Further include the rotor and stator on casing, the stator
Winding connection end be electrically connected with capacitance, the junction coiled coil of the terminals is fixed with turriform spring, the turriform bullet
Plastic cap is threaded on spring.
By above-mentioned setting, in order to improve stator and working rotor stability, started by connecting capacitance to improve
Torque, in addition to improve electrical connection reliability, employ turriform spring structure and be fixed, in addition also using plastic cap into
Row insulation, improves security.
Can be preferably as concrete scheme of the invention：Further include fan housing and protection network, the fan housing to be cylindrical and
Protection network is fixedly installed on the end face of fan housing.
By above-mentioned setting, fan housing and protection network are set, then can play the effect of protection, also allow for installing and fix.
In conclusion having the beneficial effect that in contrast to the prior art of the invention：Change the usual arc side design of fan blade, to the
Four sides use tooth-shape structure, influence the static characteristic of wind turbine and the flow behavior of surrounding air.Increase tooth-shape structure, fluid passes through tooth
When shape structure, fluid is caused to leak, the static pressure of fan, which rises, to be declined, while the uniform static pressure distribution disperseed on fan blade,
Inhibit and reduce air return, also inhibit the generation of fan blade suction surface refluence, so as to achieve the purpose that reduce noise；In addition will
It is applied in wind turbine, improves wind turbine overall structure stability.
Description of the drawings
Fig. 1 is the structure diagram of 1 fan blade of embodiment；
Fig. 2 is the structure chart of the reverse side bar shaped indent of 1 fan blade of embodiment；
Fig. 3 is the structure diagram of 2 wind turbine of embodiment；
Fig. 4 is the A portions enlarged drawing of Fig. 3；
Fig. 5 is the structure chart of the protection network of 2 wind turbine of embodiment.
Reference numeral：1st, fan blade；11st, the first arc-shaped side；12nd, the second arc-shaped side；13rd, three-arc-side；14th, the 4th side；
141st, tooth-shape structure；142nd, sawtooth portion；15th, bar shaped indent；16th, square indent；2nd, casing；21st, groove；3rd, rotor；4th, stator；
5th, capacitance；6th, turriform spring；7th, plastic cap；8th, fan housing；9th, protection network.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing.
Embodiment 1：
The fan blade 1 of a kind of wind turbine, with reference to shown in figure 1 and Fig. 2, including the first arc-shaped side 11 away from pivot, close to rotation
Second arc-shaped side 12, the three-arc-side 13, the Yi Jilian of 12 the same end of connection the first arc-shaped side 11 and the second arc-shaped side at center
The 4th side 14 at the first arc-shaped side 11 and the remaining end of the second arc-shaped side 12 is connect, the length of the first arc-shaped side 11 is more than the second arc-shaped side
12, the 4th side 14 has one section of tooth-shape structure 141.
Tooth-shape structure 141 has several sawtooth portions 142, and the width in sawtooth portion 142 accounts for the ratio model of the length on the 4th side 14
It encloses for 1/28-1/20.The ratio range that the height in sawtooth portion 142 accounts for the length of the first arc-shaped side 11 is 1/26-1/13.For example,
11 length of the first arc-shaped side used in the present embodiment for：135mm, the second arc become length into：60mm, three-arc-side 13
Length is：130mm, the arc length on the 4th side 14 are：135mm, the width in sawtooth portion 142 are：5mm, the height in sawtooth portion 142
For：6mm.142 structure triangular in shape of sawtooth portion, the width in generation referred herein are the width of triangle base.Generation referred herein
4th while 14 be no sawtooth portion 142 when the 4th while 14 scripts arc length.Suitable scope is chosen, reduction can be played and made an uproar
Materials cost can also be reduced while sound, it is cost-effective to be also advantageous that in enterprise since blade is using metal material
It manufactures.
In addition, sawtooth portion 142 sets 12-20.Preferably 16 in the present embodiment.The sawtooth portion 142 of this quantitative range can
To play the purpose for reducing noise while effectively save cost.
At least one and 11 equidirectional bar shaped indent 15 of the first arc-shaped side is provided on fan blade 1.2 are set in the present embodiment
A bar shaped indent 15, bar shaped indent 15 are formed by forging and pressing.15 main function of bar shaped indent is that the structure of raising fan blade 1 is strong
Degree in addition to this it is possible to contribute to the guiding of fluid, changes the wind pressure on fan blade 1.
On fan blade 1 square indent 16 is provided at the position of the second arc-shaped side 12.Square indent 16 is similary further
The structural strength of fan blade 1 is improved, while 1 overall stability of fan blade is improved.
On fan blade 1 thermochromic layer is coated with coated with one layer of rubber layer, the interior filling of bar shaped indent 15.The thickness of rubber layer
For 0.2-1mm.Thermochromic layer, including metallic substrates, barrier oxide layers, thermochromism composite bed and protective layer.Coating
Structure is that metallic substrates are stainless steel, and barrier oxide layers are silica, thickness 10nm, thermochromism composite bed be by
Cu2CoI4 is dispersed in titanium nitride, thickness 20nm, and protective layer is silica, thickness 10nm.The coating is at 25 degrees Celsius
When begun to variation, color can deepen with the rise of temperature, and 40 degrees Celsius eventually become black.
Its vibration can quickly pass to rubber damping material, cause corresponding sliding deformation inside rubber material, thus will
The kinetic energy of some mechanical vibration is converted to thermal energy, then color is indicated by thermochromic layer, so as to reach the effect of damping noise reduction
Fruit.
Change fan blade 1 it is usual arc side design, to the 4th side 14 use tooth-shape structure 141, influence wind turbine static characteristic and
The flow behavior of surrounding air.On the basis based on the first above-mentioned arc-shaped side 11, the second arc-shaped side 12 and three-arc-side 13
On, increase tooth-shape structure 141, when fluid is by tooth-shape structure 141, fluid is caused to leak, the static pressure of fan, which rises, to be declined, together
When uniformly disperseed the static pressure distribution on fan blade 1, inhibit and reduce air return, also inhibit the refluence of 1 suction surface of fan blade
It generates, so as to achieve the purpose that reduce noise.
Embodiment 2：
A kind of wind turbine, the fan blade 1 of the wind turbine including embodiment 1.Wind turbine employs above-mentioned 1 structure of fan blade, has relatively low make an uproar
Sound, sound construction is reliable, and air quantity and wind pressure are larger.
With reference to shown in Fig. 3 and Fig. 4, wind turbine includes the rotor 3 being located on casing 2 and stator 4, and wind turbine is 3 wind turbine of outer rotor.
It is stator 4 among namely, 4 housing rotor 3 of stator, rotor 3 rotates the fan blade 1 for driving casing 2 and being fixed on casing 2.
The winding connection end of stator 4 is electrically connected with capacitance 5, and the contact point of electrical connection is twisted together using conducting wire.With reference to the enlarged drawing of figure 4, connect
The junction coiled coil of line end is fixed with turriform spring 6, and plastic cap 7 is threaded on turriform spring 6.Pass through turriform spring
6, when plastic cap 7 is more stubborn tighter, conducting wire connection is also closer.Certain plastic cap 7 plays the role of masking, avoids leaking
Electricity and electric shock.In order to improve 3 job stability of stator 4 and rotor, detent torque is improved by connecting capacitance 5, in addition
In order to improve the reliability of electrical connection, employ 6 structure of turriform spring and be fixed, in addition also insulated using plastic cap 7,
Improve security.
In addition the fan housing 8 on wind turbine and 9 structure of protection network are also well-designed that fan housing 8 is cylindrical and protection network 9
It is fixedly installed on the end face of fan housing 8.Fan housing 8 and protection network 9 are set, then can play the effect of protection, also allow for installing
And fixation.
Refering to what is shown in Fig. 5, this wind turbine further includes the casing 2 being fixedly connected with fan blade 1, casing 2 is circumferentially distributed several use
In groove 21 that adjust gravity balance degree and that depth differs.If there are center of gravity is inconsistent or since materials are thick on casing 2
The problem of thin, causes center of gravity not in geometric center, so needing to adjust so that the center of gravity of all directions is balanced, then can adopt
With a deeper groove 21 is opened heavier one side, mitigate weight, and balance whole center of gravity so that steadily of centre of gravity is several
In the range of what center and design requirement.Differ using to 21 working depth of groove, to adjust whole machine balancing performance, so as to improve
The stability of fan operation is also beneficial to reduce noise.
The above be only the present invention exemplary embodiment, protection domain and is not intended to limit the present invention, this hair
Bright protection domain is determined by appended claim.
Claims (10)
1. a kind of fan blade of wind turbine, including the first arc-shaped side (11) away from pivot, the second arc close to pivot
Side (12), the three-arc-side (13) for connecting the first arc-shaped side (11) and the second arc-shaped side (12) the same end and connection first
Arc-shaped side (11) and the 4th side (14) at the remaining end of the second arc-shaped side (12), it is characterised in that：First arc-shaped side (11)
Length is more than the second arc-shaped side (12), and the 4th side (14) has one section of tooth-shape structure (141).
2. the fan blade of wind turbine according to claim 1, it is characterised in that：The tooth-shape structure (141) has several sawtooth
Portion (142), the ratio range that the width of the sawtooth portion (142) accounts for the length on the 4th side (14) are 1/28-1/20.
3. the fan blade of wind turbine according to claim 2, it is characterised in that：The height of the sawtooth portion (142) accounts for the first arc
The ratio range of the length on shape side (11) is 1/26-1/13.
4. the fan blade of wind turbine according to claim 3, it is characterised in that：The sawtooth portion (142) sets 12-20.
5. the fan blade of wind turbine according to claim 1, it is characterised in that：It is provided on fan blade (1) at least one with first
The equidirectional bar shaped indent (15) of arc-shaped side (11).
6. the fan blade of wind turbine according to claim 1, it is characterised in that：Close to the second arc-shaped side (12) on fan blade (1)
Square indent (16) is provided at position.
7. the fan blade of wind turbine according to claim 5, it is characterised in that：One layer of rubber layer is coated on the fan blade (1),
Filling is coated with thermochromic layer in bar shaped indent (15).
8. a kind of wind turbine, it is characterised in that：Fan blade (1) including the wind turbine as described in claim 1-7 is any.
9. wind turbine according to claim 8, it is characterised in that：Further include the casing (2) being fixedly connected with fan blade (1), institute
State casing (2) it is circumferentially distributed have it is several for adjust gravity balance degree and groove (21) that depth differs.
10. wind turbine according to claim 9, it is characterised in that：Further include the rotor (3) and stator on casing (2)
(4), the winding connection end of the stator (4) is electrically connected with capacitance (5), and the junction coiled coil of the terminals is fixed with tower
Shape spring (6) is threaded with plastic cap (7) on the turriform spring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102444.4A CN108087334A (en) | 2018-02-01 | 2018-02-01 | A kind of wind turbine and its fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102444.4A CN108087334A (en) | 2018-02-01 | 2018-02-01 | A kind of wind turbine and its fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108087334A true CN108087334A (en) | 2018-05-29 |
Family
ID=62193791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810102444.4A Pending CN108087334A (en) | 2018-02-01 | 2018-02-01 | A kind of wind turbine and its fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108087334A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022356A (en) * | 2019-12-31 | 2020-04-17 | 佛山市云米电器科技有限公司 | Double-blade fixed cluster fan blade structure, axial flow fan and air conditioner |
| CN111980966A (en) * | 2019-05-24 | 2020-11-24 | 宏碁股份有限公司 | Centrifugal heat radiation fan |
| US11187083B2 (en) | 2019-05-07 | 2021-11-30 | Carrier Corporation | HVAC fan |
| USD980965S1 (en) | 2019-05-07 | 2023-03-14 | Carrier Corporation | Leading edge of a fan blade |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210691A (en) * | 1998-01-27 | 1999-08-03 | Daikin Ind Ltd | Blade for air blower impeller and air blower impeller |
| KR100625650B1 (en) * | 2005-04-12 | 2006-09-20 | 주식회사 쿨리더 | Cooling and heating supply device |
| JP2006322378A (en) * | 2005-05-19 | 2006-11-30 | Matsushita Electric Ind Co Ltd | Blower impeller |
| CN103486083A (en) * | 2013-09-17 | 2014-01-01 | 浙江泰风科技有限公司 | Fan blade wheel |
| DE102013204637A1 (en) * | 2013-03-15 | 2014-09-18 | Wobben Properties Gmbh | Wind turbine |
| CN106704229A (en) * | 2017-03-08 | 2017-05-24 | 西北工业大学 | Self-adjusting sawtooth tail edge structure for axial flow fan |
| CN207961062U (en) * | 2018-02-01 | 2018-10-12 | 温岭市欧创机电有限公司 | A kind of wind turbine and its fan blade |
-
2018
- 2018-02-01 CN CN201810102444.4A patent/CN108087334A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210691A (en) * | 1998-01-27 | 1999-08-03 | Daikin Ind Ltd | Blade for air blower impeller and air blower impeller |
| KR100625650B1 (en) * | 2005-04-12 | 2006-09-20 | 주식회사 쿨리더 | Cooling and heating supply device |
| JP2006322378A (en) * | 2005-05-19 | 2006-11-30 | Matsushita Electric Ind Co Ltd | Blower impeller |
| DE102013204637A1 (en) * | 2013-03-15 | 2014-09-18 | Wobben Properties Gmbh | Wind turbine |
| CN103486083A (en) * | 2013-09-17 | 2014-01-01 | 浙江泰风科技有限公司 | Fan blade wheel |
| CN106704229A (en) * | 2017-03-08 | 2017-05-24 | 西北工业大学 | Self-adjusting sawtooth tail edge structure for axial flow fan |
| CN207961062U (en) * | 2018-02-01 | 2018-10-12 | 温岭市欧创机电有限公司 | A kind of wind turbine and its fan blade |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11187083B2 (en) | 2019-05-07 | 2021-11-30 | Carrier Corporation | HVAC fan |
| USD980965S1 (en) | 2019-05-07 | 2023-03-14 | Carrier Corporation | Leading edge of a fan blade |
| CN111980966A (en) * | 2019-05-24 | 2020-11-24 | 宏碁股份有限公司 | Centrifugal heat radiation fan |
| CN111980966B (en) * | 2019-05-24 | 2022-10-21 | 宏碁股份有限公司 | Centrifugal heat radiation fan |
| CN111022356A (en) * | 2019-12-31 | 2020-04-17 | 佛山市云米电器科技有限公司 | Double-blade fixed cluster fan blade structure, axial flow fan and air conditioner |
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Application publication date: 20180529 |
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