CN108119413A - Centrifuge blade, centrifugation blade, centrifugal blower and air conditioner - Google Patents
Centrifuge blade, centrifugation blade, centrifugal blower and air conditioner Download PDFInfo
- Publication number
- CN108119413A CN108119413A CN201711456558.0A CN201711456558A CN108119413A CN 108119413 A CN108119413 A CN 108119413A CN 201711456558 A CN201711456558 A CN 201711456558A CN 108119413 A CN108119413 A CN 108119413A
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- CN
- China
- Prior art keywords
- blade
- molded line
- centrifuge
- suction surface
- centrifuge blade
- 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.)
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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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of centrifuge blade, centrifugation blade, centrifugal blower and air conditioners.Centrifuge blade includes the pressure face positioned at the first side of centrifuge blade and the suction surface positioned at the centrifuge blade the second side opposite with the first side, it is formed on the suction surface molded line of suction surface and is provided with odd number transition inflection point, suction surface molded line is divided into multistage arc segment by transition inflection point, the bending directions of adjacent two sections of arc segments on the contrary, and one end of the blade trailing edge of the close centrifuge blade of suction surface molded line be directed away from the direction of the first side of centrifuge blade and gradually expand.Centrifuge blade in the present invention can eliminate the phenomenon that conventional centrifugal fan blade easily generates negative pressure near the blade trailing edge suction surface of centrifuge blade, it avoids that air-flow resorption occurs, so as to eliminate the swirl pneumatic noise at this, while the ability to function of centrifuge blade is also improved, pneumatic efficiency increases.
Description
Technical field
The present invention relates to air-conditioning device technical field, in particular to a kind of centrifuge blade, centrifugation blade, centrifugation wind
Machine and air conditioner.
Background technology
Referring to shown in Fig. 1 to Fig. 3, the whole how domed shape of conventional centrifugal leaf blade suction surface molded line 12 ', wherein arch
Peak, i.e. 12 ' extreme point of suction surface molded line are in front of the blade between edge 14 ' and blade trailing edge 13 ', from peak (extreme point) to both sides
Blade inlet edge 14 ' and blade trailing edge 13 ' it is on a declining curve.Such molded line structure, when fan blade rotates, air-flow flows through blade suction
Power face, after arch molded line extreme point, since effect of inertia is still along original track flow forward, and not along arch
The suction surface flowing at 12 ' extreme point rear of suction surface molded line.So as to cause 12 ' extreme point of arch suction surface molded line to blade blade
Suction surface section between trailing edge 13 ' nearby generates negative pressure, and then air-flow resorption phenomenon occurs, in 12 ' pole of arch suction surface molded line
Value point rear generates eddy airstream close to 13 ' place of blade trailing edge, on the one hand generates swirl pneumatic noise, on the other hand reduces fan blade
Pneumatic efficiency.
The content of the invention
It is a primary object of the present invention to provide a kind of centrifuge blade, centrifugation blade, centrifugal blower and air conditioner, to solve
Centrifugation blade of the prior art easily leads to the problem of swirl pneumatic noise.
To achieve these goals, according to an aspect of the invention, there is provided a kind of centrifuge blade, centrifuges including being located at
The pressure face and the suction surface positioned at the centrifuge blade the second side opposite with the first side of the first side of blade form the suction of suction surface
Odd number transition inflection point is provided on the molded line of face, suction surface molded line is divided into multistage arc segment, adjacent two sections of arcs by transition inflection point
The bending direction of line segment on the contrary, and one end of the blade trailing edge of the close centrifuge blade of suction surface molded line be directed away from centrifuge blade
The direction of first side gradually expands.
Further, transition inflection point is 1.
Further, the blade inlet edge molded line and suction surface molded line for forming the blade inlet edge of centrifuge blade join to form first
Intersection point, forms the blade trailing edge molded line of blade trailing edge and suction surface molded line joins to form the second intersection point, and the first intersection point and second is handed over
Horizontal distance between point is L, and the horizontal distance between the second intersection point and transition inflection point is L1, wherein, L1/L=0.5~
0.62。
Further, L1/L=0.55.
Further, blade trailing edge molded line joins to form the 3rd intersection point with forming the pressure face molded line of pressure face, and second hands over
Vertical range between point and the 3rd intersection point is H, and the vertical range between the leaf top of blade inlet edge and the second intersection point is H1,
In, H1/H=0.4~0.5.
Further, H1/H=0.45.
Further, blade inlet edge molded line is elliptic arc molded line or circular arc molded line.
Further, blade trailing edge molded line is straight line molded line or circular arc molded line or elliptic arc molded line.
Further, pressure face molded line is arch.
According to another aspect of the present invention, a kind of centrifugation blade is provided, including fan blade shroud, fan blade hub disk and setting
Centrifuge blade between fan blade shroud and fan blade hub disk, centrifuge blade are above-mentioned centrifuge blade.
According to another aspect of the present invention, a kind of centrifugal blower is provided, including centrifugation blade, centrifugation blade is above-mentioned
Centrifugation blade.
In accordance with a further aspect of the present invention, provide a kind of air conditioner, including centrifugal blower, centrifugal blower for it is above-mentioned from
Heart wind turbine.
It applies the technical scheme of the present invention, due to being provided with odd number transition inflection point on the suction surface molded line in the present invention,
And one end of the blade trailing edge of the close centrifuge blade of suction surface molded line is directed away from the direction of the first side of centrifuge blade and gradually expands
It opens, the extreme point of conventional centrifugal vane type line is eliminated, when air-flow is flowed through from the suction surface of centrifuge blade, it can be ensured that air-flow
From the blade inlet edge of centrifuge blade into blade trailing edge flow process, move ahead always along suction surface molded line, so as to eliminate routine
The phenomenon that centrifugation blade easily generates negative pressure near the blade trailing edge suction surface of centrifuge blade avoids that air-flow resorption occurs,
So as to eliminate the swirl pneumatic noise at this, while the ability to function of centrifuge blade is also improved, pneumatic efficiency increases.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 diagrammatically illustrates the top view of existing centrifuge blade；
Fig. 2 diagrammatically illustrates the stereogram of existing centrifuge blade；
The flow graph of air-flow when Fig. 3 diagrammatically illustrates existing centrifuge blade wind-guiding；
Fig. 4 diagrammatically illustrates the stereogram of the centrifuge blade of the present invention；
Fig. 5 diagrammatically illustrates the top view of the centrifuge blade of the present invention；
The flow graph of air-flow when Fig. 6 diagrammatically illustrates the centrifuge blade wind-guiding of the present invention；
Fig. 7 diagrammatically illustrates the first stereogram of the centrifugation blade of the present invention；
Fig. 8 diagrammatically illustrates the second stereogram of the centrifugation blade of the present invention；
Fig. 9 diagrammatically illustrates the top view of the centrifugation blade of the present invention；And
Figure 10 diagrammatically illustrates the sectional view of the centrifugation blade of the present invention.
Wherein, above-mentioned attached drawing is marked including the following drawings：
10th, centrifuge blade；11st, pressure face；111st, pressure face molded line；12nd, suction surface；121st, suction surface molded line；13rd, blade
Trailing edge；131st, blade trailing edge molded line；122nd, transition inflection point；14th, blade inlet edge；141st, blade inlet edge molded line；20th, fan blade shroud；
30th, fan blade hub disk.
Specific embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, without being used to describe specific order or precedence.It should be appreciated that it so uses
Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except herein
Order beyond those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment not
Be necessarily limited to those steps clearly listed or unit, but may include not list clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that spatially relative term is intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
Referring to shown in Fig. 4 to Fig. 6, according to an embodiment of the invention, a kind of centrifuge blade 10 is provided, in the present embodiment
Centrifuge blade 10 include positioned at 10 first side of centrifuge blade pressure face 11 and positioned at centrifuge blade 10 it is opposite with the first side the
The suction surface 12 of two sides is provided with odd number transition inflection point on the suction surface molded line 121 of the formation suction surface 12 in the present embodiment
122, and one end of the blade trailing edge 13 of the close centrifuge blade 10 of suction surface molded line 121 is directed away from 10 first side of centrifuge blade
Direction gradually expand so that one end of the close blade trailing edge 13 of centrifuge blade 10 is in horn-like.
By being provided with odd number transition inflection point 122, and suction surface molded line on suction surface molded line 121 in this present embodiment
The direction that one end of the blade trailing edge 13 of 121 close centrifuge blade 10 is directed away from 10 first side of centrifuge blade gradually expands,
The extreme point of conventional centrifugal vane type line is eliminated, when air-flow is flowed through from the suction surface 12 of centrifuge blade, it can be ensured that air-flow
From the blade inlet edge 14 of centrifuge blade 10 into 13 flow process of blade trailing edge, move ahead always along suction surface molded line 121, so as to
The phenomenon that conventional centrifugal fan blade easily generates negative pressure at the blade trailing edge 13 of centrifuge blade 10 near suction surface 12 is eliminated, is avoided
Generation air-flow resorption so as to eliminate the swirl pneumatic noise at this, while also improves the ability to function of centrifuge blade 10, pneumatically
Efficiency increases.
Preferably, the transition inflection point 122 in the present embodiment is 1, simple in structure, easy to process.Certainly, the present invention's
In other embodiment, transition inflection point 122 can also be arranged to 3,5 etc., if ensure suction surface molded line 121 close to from
One end of the blade trailing edge 13 of lobus cardiacus piece 10 is directed away from the direction of 10 first side of centrifuge blade, and gradually expand can be in certain journey
It avoids the centrifuge blade 10 of the present invention that air-flow resorption occurs on degree, so as to eliminate the eddy-current-start noise at this, while is also promoted
The ability to function of centrifuge blade 10, pneumatic efficiency increase.
With reference to shown in Fig. 4 to Fig. 6, suction surface molded line 121 is divided into multistage camber line by the transition inflection point 122 in the present embodiment
Section, the bending direction of adjacent two sections of arc segments is on the contrary, in actual design, and the transition inflection point 122 in the present embodiment is 1, energy
Enough so that the air-flow of 12 side of suction surface moves ahead as much as possible along suction surface molded line 121, the generation of swirl pneumatic noise is prevented.
With reference to shown in Fig. 5, the blade inlet edge molded line 141 of the blade inlet edge 14 of centrifuge blade 10 and suction surface molded line are formed
121 handing-over form the first intersection points, and the blade trailing edge molded line 131 and the handing-over of suction surface molded line 121 for forming blade trailing edge 13 form the
Two intersection points, horizontal distance between the first intersection point and the second intersection point are L, between the second intersection point and transition inflection point 122 it is horizontal away from
From for L1, wherein, L1/L=0.5~0.62, it is preferable that L1/L=0.55 can effectively prevent the generation of vortex aerodynamic noise.
Pressure face molded line 111 handing-over of the blade trailing edge molded line 131 with forming pressure face 11 in the present embodiment forms the 3rd
Intersection point, vertical range between the second intersection point and the 3rd intersection point are H, the leaf top of blade inlet edge 14 (blade inlet edge 14 and blade
Trailing edge 13 is apart from a farthest vertex) vertical range between the second intersection point is H1, wherein, H1/H=0.4~0.5 is excellent
Selection of land, H1/H=0.45 can effectively prevent the generation of vortex aerodynamic noise.
It should be noted that the horizontal distance and vertical range in the present embodiment each mean centrifuge blade 10 is horizontal positioned
Horizontal distance and vertical range when in the horizontal plane, it is specific as shown in Figure 5.
Blade inlet edge molded line 141 in the present invention could be provided as elliptic arc molded line, may be set to be circular arc molded line.
Blade trailing edge molded line 131 could be provided as straight line molded line, may be set to be circular arc molded line or elliptic arc molded line.
Pressure face molded line 111 in the present embodiment is arch, simple in structure, easy to process.
According to another aspect of the present invention, provide a kind of centrifugation blade include fan blade shroud 20, fan blade hub disk 30 and
The centrifuge blade 10 being arranged between fan blade shroud 20 and fan blade hub disk 30, the centrifuge blade 10 in the present embodiment are above-mentioned implementation
Centrifuge blade 10 in example.
The suction surface 12 of the centrifuge blade 10 of centrifugation blade in the present embodiment is using the suction surface with transition inflection point 122
From blade inlet edge 14 to blade trailing edge 13 there are N number of inflection point, wherein N is odd number for molded line 121, i.e. suction surface molded line 121, considers to add
Work manufactures cost, it is preferable that N values 1.
Using centrifuge blade 10 of the present invention, when centrifuge blade 10 works, it is ensured that in air-flow flow process, centrifuge blade 10
12 side of suction surface, air-flow can be bonded 10 surface flow forward (as shown in Figure 6) of centrifuge blade, conventional centrifugal blade 10 avoided to inhale
The generation of 12 sidewind segregation phenomenon of power face, so as to avoid in arch molded line extreme point to the suction surface section between blade trailing edge 13
Negative pressure is nearby generated, the path that eddy airstream has been blocked to generate eliminates the swirl pneumatic noise near blade trailing edge.Meanwhile
Due to eliminating useless eddy airstream, power consumption is reduced so that aerodynamic performance is improved.
It according to experiment it is recognised that based on identical air-conditioning duct, is compared using identical experiment condition, the present invention
The more conventional centrifugation blade blade noise total value of centrifuge blade structure reduces 0.6-0.9dB, and pneumatic efficiency promotes 3%-5%.
According to another embodiment of the present invention, a kind of centrifugal blower is provided, including centrifugation blade, centrifugation blade is above-mentioned
Centrifugation blade in embodiment.
In accordance with a further aspect of the present invention, provide a kind of air conditioner, including centrifugal blower, centrifugal blower for it is above-mentioned from
Heart wind turbine.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：The present invention's
Centrifuge blade bulbous bow profile uses transition inflection point, eliminates the extreme point of conventional centrifugal vane type line, it can be ensured that air-flow is from leaf
Piece leading edge moves ahead into blade trailing edge flow process along suction surface molded line always, so as to eliminate conventional centrifugal fan blade in blade
Suction surface nearby generates the phenomenon that negative pressure at trailing edge, avoids that air-flow resorption occurs, so as to eliminate the swirl pneumatic noise at this, together
When also improve centrifuge blade ability to function, pneumatic efficiency increases.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
- A kind of 1. centrifuge blade (10), which is characterized in that the pressure face (11) including being located at (10) first side of centrifuge blade Suction surface (12) with positioned at the centrifuge blade (10) the second side opposite with the first side, forms the suction of the suction surface (12) It is provided with odd number transition inflection point (132) on power face molded line (121), the transition inflection point (132) is by the suction surface molded line (121) it is divided into multistage arc segment, the bending direction of adjacent two sections of arc segments is on the contrary, and the suction surface molded line (121) One end of the blade trailing edge (13) close to the centrifuge blade (10) be directed away from the side of (10) first side of centrifuge blade To gradually expanding.
- 2. centrifuge blade (10) according to claim 1, which is characterized in that the transition inflection point (122) is 1.
- 3. centrifuge blade (10) according to claim 2, which is characterized in that before forming the blade of the centrifuge blade (10) The blade inlet edge molded line (141) of edge (14) forms the first intersection point with the suction surface molded line (121) handing-over, forms the blade tail Blade trailing edge molded line (131) and the suction surface molded line (121) handing-over of edge (13) form the second intersection point,Horizontal distance between first intersection point and second intersection point is L, second intersection point and the transition inflection point (122) horizontal distance between is L1, wherein, L1/L=0.5~0.62.
- 4. centrifuge blade (10) according to claim 3, which is characterized in that L1/L=0.55.
- 5. centrifuge blade (10) according to claim 3, which is characterized in that the blade trailing edge molded line (131) is with forming Pressure face molded line (111) handing-over of the pressure face (11) forms the 3rd intersection point, second intersection point and the 3rd intersection point it Between vertical range for H, the vertical range between the leaf top of the blade inlet edge (14) and second intersection point is H1, wherein, H1/H=0.4~0.5.
- 6. centrifuge blade (10) according to claim 5, which is characterized in that H1/H=0.45.
- 7. centrifuge blade (10) according to claim 3, which is characterized in that the blade inlet edge molded line (141) is ellipse Camber line or circular arc molded line.
- 8. centrifuge blade (10) according to claim 3, which is characterized in that the blade trailing edge molded line (131) is straight line Molded line or circular arc molded line or elliptic arc molded line.
- 9. centrifuge blade (10) according to claim 5, which is characterized in that the pressure face molded line (111) is arch.
- 10. a kind of centrifugation blade, including fan blade shroud (20), fan blade hub disk (30) and be arranged on the fan blade shroud (20) and Centrifuge blade (10) between the fan blade hub disk (30), which is characterized in that the centrifuge blade (10) is claim 1 to 9 Any one of centrifuge blade (10).
- 11. a kind of centrifugal blower, including centrifugation blade, which is characterized in that the centrifugation blade for described in claim 10 from Heart fan blade.
- 12. a kind of air conditioner, including centrifugal blower, which is characterized in that the centrifugal blower is the centrifugation described in claim 11 Wind turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711456558.0A CN108119413A (en) | 2017-12-26 | 2017-12-26 | Centrifuge blade, centrifugation blade, centrifugal blower and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711456558.0A CN108119413A (en) | 2017-12-26 | 2017-12-26 | Centrifuge blade, centrifugation blade, centrifugal blower and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108119413A true CN108119413A (en) | 2018-06-05 |
Family
ID=62232080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711456558.0A Pending CN108119413A (en) | 2017-12-26 | 2017-12-26 | Centrifuge blade, centrifugation blade, centrifugal blower and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108119413A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566503A (en) * | 2019-10-10 | 2019-12-13 | 珠海格力电器股份有限公司 | centrifugal fan blade, centrifugal fan, air conditioner and transportation means |
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|---|---|---|---|---|
| GB859815A (en) * | 1956-03-31 | 1961-01-25 | Walter Bohmann | Improvements in and relating to runner blades for pumps, blowers or compressors |
| CN2073501U (en) * | 1990-08-31 | 1991-03-20 | 陈谟 | Centrifugal, rear-directioned vanes with sub-critical vane form |
| CN2345758Y (en) * | 1998-05-13 | 1999-10-27 | 高歌 | Centrifugal pump impeller with twisted salix-leaf-type blade |
| JP2001107892A (en) * | 1999-10-07 | 2001-04-17 | Hitachi Ltd | Air conditioner |
| CN102822531A (en) * | 2010-03-15 | 2012-12-12 | 夏普株式会社 | Fan, metallic mold, and fluid delivery device |
| CN103062112A (en) * | 2013-01-10 | 2013-04-24 | 中联重科股份有限公司 | Road cleaning unit and centrifugal fan impeller thereof |
| CN207814054U (en) * | 2017-12-26 | 2018-09-04 | 珠海格力电器股份有限公司 | Centrifuge blade, centrifugation blade, centrifugal blower and air conditioner |
-
2017
- 2017-12-26 CN CN201711456558.0A patent/CN108119413A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB859815A (en) * | 1956-03-31 | 1961-01-25 | Walter Bohmann | Improvements in and relating to runner blades for pumps, blowers or compressors |
| CN2073501U (en) * | 1990-08-31 | 1991-03-20 | 陈谟 | Centrifugal, rear-directioned vanes with sub-critical vane form |
| CN2345758Y (en) * | 1998-05-13 | 1999-10-27 | 高歌 | Centrifugal pump impeller with twisted salix-leaf-type blade |
| JP2001107892A (en) * | 1999-10-07 | 2001-04-17 | Hitachi Ltd | Air conditioner |
| CN102822531A (en) * | 2010-03-15 | 2012-12-12 | 夏普株式会社 | Fan, metallic mold, and fluid delivery device |
| CN103062112A (en) * | 2013-01-10 | 2013-04-24 | 中联重科股份有限公司 | Road cleaning unit and centrifugal fan impeller thereof |
| CN207814054U (en) * | 2017-12-26 | 2018-09-04 | 珠海格力电器股份有限公司 | Centrifuge blade, centrifugation blade, centrifugal blower and air conditioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566503A (en) * | 2019-10-10 | 2019-12-13 | 珠海格力电器股份有限公司 | centrifugal fan blade, centrifugal fan, air conditioner and transportation means |
| CN110566503B (en) * | 2019-10-10 | 2020-05-15 | 珠海格力电器股份有限公司 | Centrifugal fan blade, centrifugal fan, air conditioner and transportation means |
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