CN103375441A - Bladeless fan - Google Patents
Bladeless fan Download PDFInfo
- Publication number
- CN103375441A CN103375441A CN2012101845862A CN201210184586A CN103375441A CN 103375441 A CN103375441 A CN 103375441A CN 2012101845862 A CN2012101845862 A CN 2012101845862A CN 201210184586 A CN201210184586 A CN 201210184586A CN 103375441 A CN103375441 A CN 103375441A
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- CN
- China
- Prior art keywords
- fan
- blade fan
- nozzle
- exhaust outlet
- intake opening
- 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
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a bladeless fan comprising a substrate and a flat-and-elongated nozzle. The substrate comprises a substrate shell, air inlet holes and a fan. The air inlet holes are formed in the substrate shell, the fan arranged in the substrate is used for inhaling external airflow from the air inlet holes and generating internal airflow upwards. The nozzle is divided into a left side face, a right side face, a front end and a rear end, the left and right side faces are larger in size, the front and rear ends are smaller in size, the rear end is sealed, and the front end is provided with a slit-shaped outlet. The nozzle is used for receiving internal airflow and ejecting the same out. Designed reasonably, the bladeless fan is higher in safety performance as compared with the common fans, and more attractive in shape than common bladeless fans.
Description
Technical field
The present invention relates to a kind of fan, refer to especially a kind of without blade fan.
Background technique
Thereby traditional fan all is to produce wind by the motor drives blade rotary, accelerate the flowing velocity of the air draught of surrounding environment, thereby reach the effect of cooling and heatstroke-eliminating and ventilating air, dangerous but this traditional fan is easy to produce, there is certain potential safety hazard, and is inconvenient to clean.
Therefore, occurred on the market without blade fan at present, this fan does not have traditional fan blade, leans on the slit air-out, thereby reaches the effect of ventilating air; What now can see on the market all is to lean on the nozzle of ring-type to carry out air-out without blade fan, and this single design nature can not satisfy the growing esthetic sentiment of people.
Summary of the invention
In view of this, the object of the invention is to propose a kind of without blade fan, higher than the conventional fan Safety performance, and moulding is compared common more attractive in appearance without blade fan.
Provided by the invention based on above-mentioned purpose. a kind of without blade fan, comprising:
Pedestal comprises base shell and is arranged on intake opening on the base shell, is arranged on the blower fan in the pedestal, is used for sucking outer gas stream and producing internal gas flow upwards from intake opening;
Be arranged on the flat elongated shape nozzle on the pedestal, it is divided into: area larger about two sides, and the less rear and front end of area, its rear end sealing, front end is provided with into the exhaust outlet of slit-shaped, and described nozzle is used for receiving internal gas flow, and it is ejected.
Further, the cross sectional area of described flat elongated shape nozzle reduces from bottom to top gradually.
Optionally, be close to described nozzle housing internal surface and be provided with noise reduction spare.
Further, described noise reduction spare is vertical noise reducing plate of next-door neighbour's nozzle housing internal surface setting.
Optionally, described exhaust outlet is one slit.
Better, described exhaust outlet is twice and above slit, and described exhaust outlet place is vertically arranged with wind shield.
Further, described wind shield both sides also are provided with vertical grid.
Better, described vertical grid and wind shield are divided into four road slits with exhaust outlet.
Optionally, the gap width of described slit is 0.5mm ~ 4mm, and air outlet angle is less than or equal to 10 degree.
Further, described exhaust outlet place also is provided with horizontal grid.
Optionally, the angle between described horizontal grid and nozzle throat area is 0~-5 degree, and laterally the length range of grid is 15mm~80mm, and longitudinally evenly distributes.
Further, be provided with wind scooper on the described blower fan, be used for the internal gas flow that blower fan produces upwards is directed to nozzle.
Better, blower fan is arranged on 2/5 above part of described pedestal, and blower fan is positioned on the intake opening.
Further, described intake opening is dense holes, and around the base shell surface even cloth hole.
Optionally, the number of aperture of described intake opening is 4000 ~ 7000, and the pore size scope is 0.7mm ~ 2mm.
Preferably, the number of aperture of described intake opening is 4700 ~ 4900, and the pore diameter size scope is 1mm.
Better, described blower fan is the trunnion shaft flow type fan.
Can find out from above, provided by the invention a kind of without blade fan, not only overcome the potential safety hazard of conventional fan, and the design of nozzle and pedestal is unique, modern design is attractive in appearance.Further by exhaust outlet unique among the present invention and the design of nozzle profile structure, drive the air at nozzle both sides and rear when making air outlet, become certain area to blow to the user, thereby what make that the user feels is not the wind of a slit, but similarly has certain area wind-engaging impression with conventional fan.Improve by intake opening, reduced flow velocity and the windage at fans entrance place, reduce the vibration that the intake opening place causes because of gas flow, thereby reduce the low frequency noise of intake opening; Wind scooper and tapered inner passage can reduce the flow resistance of blower fan air-out, optimize streamline structure, velocity flow profile, pressure distribution etc., and the noise in reduce flowing, and it compares the inner passage of the consistent type of cross-section area, and the air-out effect that the distributions such as its flow velocity, pressure produce is more superior; The noise reduction spare that the nozzle housing internal surface arranges can improve the anti-acoustic capability of fan; Side air-out before adopting, nozzle arrangements is gap structure, by the reasonably optimizing slot parameter, improves air-out speed and blowing area; Adopt the structure of wind shield can further improve blowing area, improve nozzle air-out performance; And, elegant in appearance without the monnolithic case of blade fan, meet aesthetic effect.
Description of drawings
Fig. 1 be the embodiment of the invention 1 without blade fan overall structure schematic representation;
Fig. 2 be the embodiment of the invention 1 without the local stereogram that splits of blade fan;
Fig. 3 be the embodiment of the invention 1 without the blade fan sectional view;
Fig. 4 is that the embodiment of the invention 1 nozzle is along the sectional view of A-A among Fig. 3;
Fig. 5 is that the embodiment of the invention 1 nozzle is along the sectional view of B-B among Fig. 3;
Fig. 6 is the cross-sectional view at the horizontal grid of the nozzle of the embodiment of the invention 2 place;
Fig. 7 is the cross-sectional view of the embodiment of the invention 2 nozzles.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
With reference to figure 1, for the embodiment of the invention 1 without blade fan overall structure schematic representation.
Referring to figs. 2 and 3, what be respectively the embodiment of the invention 1 splits stereogram and sectional view without the blade fan part.
Wherein, pedestal 2 has comprised that also flow blower casing 22 and position are used for sucking from intake opening 24 blower fan of outer gas stream and generation internal gas flow upwards in the inner, be arranged on the blower fan and the wind scooper 23 that links to each other with flow blower casing 22, it is used for upwards guiding the internal gas flow of blower fan generation, and described blower fan is positioned at the top of described intake grill 24; Nozzle 3 has also comprised some horizontal grid 32 and the inner passage 33 that exhaust outlet 31 places arrange, among Fig. 2 and Fig. 3 not in the diagram 1 top decorate 38, but the top of inner passage 33 sealing 39, top 38 the effect of decorating only is to get the fan decorative appearance more attractive in appearance and meet common people's aesthetical standard.
With reference to figure 4 and Fig. 5, be respectively the embodiment of the invention 1 nozzle along the sectional view of A-A among Fig. 3 and along the sectional view of B-B among Fig. 3.
Flat elongated shape nozzle 3 is fixed on the pedestal 2, is used for receiving the internal gas flow that wind scooper 23 guiding come, and it is ejected.Described nozzle 3 comprises mouth, inner passage 33, nozzle housing 37, and wherein mouth comprises exhaust outlet 31, horizontal grid 32, noise reducing plate 34, vertical grid 35, wind shield 36.
To Fig. 5, described overall structure without blade fan mainly comprises base 1 for bottom support, for generation of the spherical base 2 of air-flow and be used for internal gas flow is ejected the nozzle 3 that forms the outer gas stream that blows to the user in conjunction with Fig. 1.
Described when working without blade fan, at first blower fan running, so that intake opening 24 places are with outer gas stream inspiration pedestal 2, accelerate and upwards flow from wind scooper 23 by blower fan, flow out the air-flow of wind scooper 23 through tapered inner passage 33, then by exhaust outlet 31 ejections of nozzle 3, blow to the user, make it experience nice and cool sensation.
Can find out from foregoing description, described intensive poroid by intake opening 24 is set to without blade fan, reduced flow velocity and the windage at fans entrance place, reduce the vibration that intake opening 24 places cause because of gas flow, thereby reduce the low frequency noise of intake opening 24; Wind scooper 23 and tapered inner passage 33 can reduce the flow resistance of blower fan air-out, optimize streamline structure, velocity flow profile, pressure distribution etc., and the noise in reduce flowing, and it compares the inner passage of the consistent type of cross-section area, and the air-out effect that the distributions such as its flow velocity, pressure produce is more superior; The noise reducing plate 34 that nozzle housing 37 internal surfaces arrange can improve the anti-acoustic capability of fan; Side air-out before adopting, nozzle arrangements is gap structure, by the reasonably optimizing slot parameter, improves air-out speed and blowing area; Adopt the structure of wind shield 36 can further improve blowing area, improve nozzle air-out performance; And, elegant in appearance without the monnolithic case of blade fan, meet aesthetic effect.
The material that it is pointed out that near the part of described wind shield 36 exhaust outlet 31 can be selected acoustic damping materials, improves nozzle 3 at the anti-acoustic capability at exhaust outlet 31 places, reduces the noise at exhaust outlet 31 places, prevents the resonance phenomenon at exhaust outlet 31 places; Wind shield 36 is the oval-shaped structure of class for cross section, when preferred Koln reaches the surface, can play the effect that enlarges blowing area and water conservancy diversion wind direction.
Described wind scooper 23 inside can increase the dress noise reducing plate, the effect that makes it have good wind-guiding and reduce fan noise.
The effect of described vertical grid 35 is and the exhaust outlet longitudinal subdivision can be opened that it is not essential feature of the present invention, removes vertical grid 35 purposes of the present invention and can realize equally.
The number of described horizontal grid 32, vertical grid 35 can be regulated as required, realizes the adjusting of exhaust outlet quantity, air outlet angle, exhaust outlet size, can satisfy the air-out requirement.
Described horizontal barrier mainly plays the effect of control wind direction, its optimum design is along continuous straight runs, but also the several angle scope can be arranged, this scope roughly and between horizontal plane angle be 0~-5 degree, laterally the length range of grid is 15mm~80mm, laterally barrier longitudinally evenly distributes, and can play better wind-guiding effect.
If described intake opening 24 adopts even cloth hole around base shell 21 surfaces, can further reduce vibration and fluid noise that blower fan causes because air intake is inhomogeneous; And perforate number preferable range is 4000 ~ 7000, is preferably 4700 ~ 4900, and the pore diameter size preferable range is 0.7mm ~ 2mm, is preferably 1mm.
Described blower fan is not to adopt the trunnion shaft flow type fan, can adopt according to the needs of design the blower fan of other types, as long as meet the design without blade fan, all belongs to the scope of protection of the invention.
Described blower fan is not the 2/5 above part that must be positioned at pedestal 2, as long as it guarantee is positioned on the intake grill, and as far as possible by the top setting of pedestal 2, just can reach good air-supply effect.
With reference to figure 6 and Fig. 7, be respectively the cross-sectional view at horizontal grid 32 places of nozzle 3 of the embodiment of the invention 2 and the cross-sectional view of nozzle 3.
Wherein nozzle 3 has comprised exhaust outlet 31, horizontal grid 32, vertical grid 35, nozzle housing 37.
Can find out that by Fig. 6 and Fig. 7 the structure of the nozzle 3 among the embodiment 2 and embodiment 1 difference are do not have noise reducing plate 34 and wind shield 36 among the embodiment 1 among the embodiment 2, from embodiment 14 of exhaust outlet 31 become 3; Adopt the more simple than embodiment 1 design without blade fan of this design, needed manufacturing process is also relatively less.
This shows that the design of described exhaust outlet 31 is not unique, it is road slit composition arbitrarily, and these designs can both realize purpose of the present invention; And the gap width of described slit is 0.5mm ~ 4mm, is preferably 1.2mm~1.5mm, and its air outlet angle can arrive better air-out effect less than or equal to 10 degree.
Those of ordinary skill in the field are to be understood that: the above only is specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. one kind without blade fan, it is characterized in that, comprising:
Pedestal comprises base shell and is arranged on intake opening on the base shell, is arranged on the blower fan in the pedestal, is used for sucking outer gas stream and producing internal gas flow upwards from intake opening;
Be arranged on the flat elongated shape nozzle on the pedestal, it is divided into: area larger about two sides, and the less rear and front end of area, its rear end sealing, front end is provided with into the exhaust outlet of slit-shaped, and described nozzle is used for receiving internal gas flow, and it is ejected.
2. according to claim 1 a kind of without blade fan, it is characterized in that the cross sectional area of described flat elongated shape nozzle reduces gradually from bottom to top.
3. according to claim 2 a kind of without blade fan, it is characterized in that, be close to described nozzle housing internal surface and be provided with noise reduction spare.
4. according to claim 3 a kind of without blade fan, it is characterized in that vertical noise reducing plate that described noise reduction spare arranges for next-door neighbour's nozzle housing internal surface.
5. according to claim 4 a kind of without blade fan, it is characterized in that described exhaust outlet is one slit.
6. according to claim 5 a kind of without blade fan, it is characterized in that described exhaust outlet is twice and above slit, and described exhaust outlet place is vertically arranged with wind shield.
7. according to claim 6 a kind of without blade fan, it is characterized in that described wind shield both sides also are provided with vertical grid.
8. according to claim 7 a kind of without blade fan, it is characterized in that described vertical grid and wind shield are divided into four road slits with exhaust outlet.
9. according to claim 8 a kind of without blade fan, it is characterized in that the gap width of described slit is 0.5mm~4mm, and its air outlet angle is less than or equal to 10 degree.
10. according to claim 1 a kind of without blade fan, it is characterized in that described exhaust outlet place also is provided with horizontal grid.
11. according to claim 10 a kind of without blade fan, it is characterized in that the angle between described horizontal grid and horizontal plane is 0~-5 degree, laterally the length range of grid is 15mm~80mm, and longitudinally evenly distributes.
12. according to claim 1 a kind of without blade fan, it is characterized in that, be provided with wind scooper on the described blower fan, be used for the internal gas flow that blower fan produces upwards is directed to nozzle.
13. according to claim 12 a kind of without blade fan, it is characterized in that blower fan is arranged on 2/5 above part of described pedestal, and blower fan is positioned on the intake opening.
14. according to claim 13 a kind of without blade fan, it is characterized in that described intake opening is dense holes, and around the base shell surface even cloth hole.
15. according to claim 14 a kind of without blade fan, it is characterized in that the number of aperture of described intake opening is 4000 ~ 7000, and the pore diameter size scope is 0.7mm ~ 2mm.
16. according to claim 15 a kind of without blade fan, it is characterized in that the number of aperture of described intake opening is 4700 ~ 4900, and the pore diameter size scope is 1mm.
17. described a kind of without blade fan according to claim 1-16, it is characterized in that described blower fan is the trunnion shaft flow type fan.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012101845862A CN103375441A (en) | 2012-04-11 | 2012-06-06 | Bladeless fan |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210104563.6 | 2012-04-11 | ||
CN201210104563 | 2012-04-11 | ||
CN2012101845862A CN103375441A (en) | 2012-04-11 | 2012-06-06 | Bladeless fan |
Publications (1)
Publication Number | Publication Date |
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CN103375441A true CN103375441A (en) | 2013-10-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2012101845862A Pending CN103375441A (en) | 2012-04-11 | 2012-06-06 | Bladeless fan |
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CN (1) | CN103375441A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2534656A (en) * | 2014-11-20 | 2016-08-03 | Ove Arup Partnership Ltd | Air mass induction device |
CN106930986A (en) * | 2017-04-29 | 2017-07-07 | 应辉 | Bladeless fan and its chimney fan |
CN109268318A (en) * | 2018-11-29 | 2019-01-25 | 浙江优美莱智能科技有限公司 | A kind of fan that nozzle is relatively independent |
CN110439868A (en) * | 2019-06-17 | 2019-11-12 | 东莞市卓奇峰智能科技有限公司 | Column stream back spray current expanding device |
CN113137386A (en) * | 2020-01-19 | 2021-07-20 | 广东美的环境电器制造有限公司 | Air supply device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101749289A (en) * | 2008-12-11 | 2010-06-23 | 戴森技术有限公司 | Fan |
CN201696365U (en) * | 2010-05-20 | 2011-01-05 | 张钜标 | Flat jet fan |
CN102032223A (en) * | 2010-12-28 | 2011-04-27 | 任文华 | Bladeless fan device |
CN201874898U (en) * | 2010-10-29 | 2011-06-22 | 李德正 | Fan without blades |
CN201874902U (en) * | 2010-12-13 | 2011-06-22 | 任文华 | Bladeless fan device |
US20120051884A1 (en) * | 2010-08-28 | 2012-03-01 | Zhongshan Longde Electric Industries Co., Ltd. | Air blowing device |
-
2012
- 2012-06-06 CN CN2012101845862A patent/CN103375441A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101749289A (en) * | 2008-12-11 | 2010-06-23 | 戴森技术有限公司 | Fan |
CN201696365U (en) * | 2010-05-20 | 2011-01-05 | 张钜标 | Flat jet fan |
US20120051884A1 (en) * | 2010-08-28 | 2012-03-01 | Zhongshan Longde Electric Industries Co., Ltd. | Air blowing device |
CN201874898U (en) * | 2010-10-29 | 2011-06-22 | 李德正 | Fan without blades |
CN201874902U (en) * | 2010-12-13 | 2011-06-22 | 任文华 | Bladeless fan device |
CN102032223A (en) * | 2010-12-28 | 2011-04-27 | 任文华 | Bladeless fan device |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2534656A (en) * | 2014-11-20 | 2016-08-03 | Ove Arup Partnership Ltd | Air mass induction device |
GB2534656B (en) * | 2014-11-20 | 2018-07-25 | Arup Ventures Ltd | Air mass induction device |
CN106930986A (en) * | 2017-04-29 | 2017-07-07 | 应辉 | Bladeless fan and its chimney fan |
WO2018196437A1 (en) * | 2017-04-29 | 2018-11-01 | 应辉 | Bladeless fan and air outlet cylinder thereof |
KR20190002936U (en) * | 2017-04-29 | 2019-11-27 | 후이 잉 | Bladeless Fan and Air Vent Cylinder |
KR200493698Y1 (en) * | 2017-04-29 | 2021-05-24 | 후이 잉 | Bladeless fan and air exhaust cylinder |
CN106930986B (en) * | 2017-04-29 | 2023-08-22 | 应辉 | Bladeless fan and air outlet barrel thereof |
CN109268318A (en) * | 2018-11-29 | 2019-01-25 | 浙江优美莱智能科技有限公司 | A kind of fan that nozzle is relatively independent |
CN110439868A (en) * | 2019-06-17 | 2019-11-12 | 东莞市卓奇峰智能科技有限公司 | Column stream back spray current expanding device |
CN113137386A (en) * | 2020-01-19 | 2021-07-20 | 广东美的环境电器制造有限公司 | Air supply device |
CN113137386B (en) * | 2020-01-19 | 2024-04-05 | 广东美的环境电器制造有限公司 | Air supply device |
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Application publication date: 20131030 |