CN103375444A - Bladeless fan and nozzle thereof - Google Patents
Bladeless fan and nozzle thereof Download PDFInfo
- Publication number
- CN103375444A CN103375444A CN201210184750XA CN201210184750A CN103375444A CN 103375444 A CN103375444 A CN 103375444A CN 201210184750X A CN201210184750X A CN 201210184750XA CN 201210184750 A CN201210184750 A CN 201210184750A CN 103375444 A CN103375444 A CN 103375444A
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- Prior art keywords
- nozzle
- blade fan
- exhaust outlet
- fan according
- width
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Classifications
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- 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 and a nozzle thereof. The bladeless fan comprises a base, a pedestal and the nozzle, the pedestal is positioned above the base, the nozzle is fixed onto the pedestal and comprises a tapered air duct and a mouth for spraying airflow, the nozzle is flat and gradually reduced from bottom to top and from back to front, and the mouth is a long and thin opening formed along one side of the nozzle.
Description
Technical field
The present invention relates to a kind of household electric appliance, refer to especially a kind of without blade fan and nozzle thereof.
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, (when taking advantage of the adult and do not note such as: the child who has finger is stretched in the electric fan but that this traditional fan is easy to produce is dangerous, just injured by blade), there is certain potential safety hazard, and is inconvenient to clean.Of the prior art without blade fan, adopt the air current spray nozzle of annular to replace traditional fan blade, but pneumatic noise is larger, affects the peace and quiet of life staying idle at home; And its air current spray nozzle takes up space larger, and is relatively heavier; The path length of air ventilation makes air output reduce easily.
Summary of the invention
In view of this, the object of the invention is to propose a kind of without blade fan and nozzle thereof.Make when having moulding attractive in appearance without blade fan, have smooth air ventilation path.
Be flat elongated shape based on the above-mentioned purpose nozzle without blade fan provided by the invention, dwindle gradually that back-end closure, front end are provided with elongate slit shape exhaust outlet from bottom to top, nozzle outer surface is that Koln reaches curved surface.
Optionally, this nozzle outer surface lateral cross section is 9-25mm away from the range of curvature radius of the curved surface of exhaust outlet.Described exhaust outlet place is provided with wind shield, and the part that described wind shield exposes nozzle is circular-arc.Described wind shield is convergent from outside to inside, and the curvature of its outer end circular arc is 0.23-0.27.
Optionally, the width of described nozzle exhaust outlet is 3mm-70mm, and the length of described nozzle throat area is 10-160mm.Preferably, the width of described nozzle exhaust outlet on the top is 3mm-19mm, and the width of described nozzle exhaust outlet in the bottom is 35mm-70mm; The length of described nozzle throat area on the top is 10mm-56mm, and the length of described nozzle throat area in the bottom is 70-160mm.
Further, described nozzle comprises the noise reducing plate that is positioned at nozzle interior and the vertical grid that is arranged at exhaust outlet.Described exhaust outlet two slits are each side arranged, lay respectively between described wind shield and the described vertical grid, between described noise reducing plate and the described vertical grid.The width of described slit is 0.5mm-4mm.
In addition, the rear end of described nozzle is convex structure, and the radius of described convex structure is 14mm-22mm.
Simultaneously, provided by the present invention without blade fan, comprise base, pedestal and nozzle as described above; Described pedestal is positioned on the base, and nozzle is fixed on the pedestal.
Can find out from above, provided by the invention without blade fan and nozzle thereof, adopt the nozzle arrangements of nearly flat, replaced the blade structure of conventional fan, the Security of its use is improved; Design by unique nozzle profile and air outlet structure among the present invention, 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.Volume is little, air ventilation path end, and the noise that air-flow produces in the passage of air ventilation has obtained effectively reducing, and is conducive to control the wind direction of air-out.The structure that this nozzle adopts, its surface has good wind effect, so that air-flow is from exhaust outlet at an angle, divergently eject, the effective direction that flows out of steering flow, and then the user can experience larger blowing area.Adopt wind-lead-cover structure, also be conducive to improve the speed that gas flows out, so that the air-flow of this fan ejection brings better cooling-down effect to the user.What is more important, nozzle without blade fan provided by the present invention, its shell curved design has been utilized aerodynamic principle well, so that can drive flowing of its surrounding atmosphere simultaneously from the air-flow of the exhaust outlet of nozzle ejection, so that the air quantity that the user experiences strengthens.
In addition, provided by the present invention without blade fan, its nozzle form is attractive in appearance, the life staying idle at home environment has been played the effect that beautifies.
Description of drawings
Fig. 1 be the embodiment of the invention without blade fan overall structure schematic representation;
Fig. 2 A be the embodiment of the invention without blade fan nozzle arrangements side sectional view figure;
Fig. 2 B be the embodiment of the invention without blade fan nozzle arrangements forward schematic representation;
Fig. 2 C is the C place partial enlarged drawing of Fig. 2 B;
Fig. 3 A is the cross-sectional structure schematic representation without blade fan nozzle top of the embodiment of the invention;
Fig. 3 B is the cross-sectional structure schematic representation without the blade fan nozzle bottom of the embodiment of the invention.
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.
Provided by the present invention without blade fan, comprise base, pedestal, nozzle; Described pedestal is positioned on the base, and nozzle is fixed on the pedestal; Described nozzle comprises tapered air channel and is used for the mouth of ejection air-flow; Described nozzle is flat elongated shape, dwindles gradually from bottom to top; Nozzle back-end closure and wider, front end has nozzle, and nozzle becomes the elongate slit shape.
Fig. 1 be the embodiment of the invention without blade fan overall structure schematic representation.Comprise base 1, pedestal 2, nozzle 3.Base 1 plays a part to support pedestal 2 and the nozzle 3 of top sphere.Described pedestal 2 is for sphere and can be the fractionation structure, has suitable intake grill on the lower semisphere outer surface, and the diameter of intake grill matches with quantity.The inside of pedestal 2 is provided with blower fan, and the episphere inside of pedestal 2 is provided with wind scooper, and described wind scooper inside is provided with noise reducing plate, has the effect of good wind-guiding and reduction noise.Described nozzle 3 is flat elongated shape, dwindles gradually from top to bottom, is divided into two larger sides of area and the less rear and front end of area, and back-end closure, front end are provided with at least one exhaust outlet 31.Exhaust outlet 31 is an elongated opening, dwindles gradually from bottom to top, and its width is 3mm-70mm.The width on exhaust outlet 31 tops is 3mm-19mm, and alternatively, the width on described top is 3mm-6mm, 6mm-9mm, or 9mm-12mm, or 12-15mm, or 16mm-19mm, or 17mm-18mm, or 18mm-19mm; The width of exhaust outlet 31 bottoms is 35mm-70mm, and alternatively, the width of described bottom is 35mm-40mm, or 40mm-50mm, or 50mm-60mm, or 60mm-70mm.Be provided with wind shield 32 at exhaust outlet 31 openings.Wind shield 32 can play the effect that diversion air flows out, and optimizes the air flow line structure, and the distribution of control air velocity, pressure etc. can be controlled effectively to air-out direction etc.Wind shield 32 can select suitable acoustic damping materials to make, and as adopting foamed aluminium board etc., adopts acoustic absorptivity to make wind shield 32 greater than 0.5 foamed aluminium board in the present embodiment, further reduces noise.
Fig. 2 A be the embodiment of the invention without blade fan nozzle arrangements side schematic view.Comprise spray nozzle front end 33, nozzle rear end 34, nozzle tip 35, nozzle lower end 36, horizontal grid 37.Described horizontal grid 37 uniformly-spaced arranges along the direction of exhaust outlet 31, forms the transverse slot of some at exhaust outlet 31 places.Spray nozzle front end 33 longitudinally radius of curvature is 700mm-1000mm, and in the present embodiment, the radius of curvature of spray nozzle front end 33 is about 830mm.
Fig. 2 B be the embodiment of the invention without blade fan nozzle arrangements forward schematic representation, i.e. the front view of exhaust outlet 31, this figure comprises wind shield 32.Fig. 2 C is the C place partial enlarged drawing of Fig. 2 B, comprises the shell of nozzle 3, horizontal grid 37, vertical grid 38, noise reducing plate 39.The front end of described noise reducing plate 39 is close to the inwall of exhaust outlet 31.At the right and left of exhaust outlet 31 two width being arranged respectively is the slit of 0.5-4mm, and described slit width is preferably about 1.2mm, and respectively position wind shield 32 with vertically between the grid 38, between noise reducing plate 39 and the vertical grid 38.Optionally, the width of described slit is 0.5-0.9mm, or 0.9-1.2mm, or 1.2-1.5mm, or 1.5-1.8mm, or 1.8-2.1mm, or 2.1-2.4mm, or 2.4-2.7mm, or 2.7-3mm, or 3-3.5mm, or 3.5-4mm.In the present embodiment, the width of described slit is 1.2-1.5mm; Further, the optional width of described slit is 1.2-1.3mm, or 1.3-1.4mm, or 1.4-1.5mm.
Fig. 3 A is the cross-sectional structure schematic representation without blade fan nozzle top of the embodiment of the invention, also is the A-A schematic cross-section of Fig. 2.Comprise wind shield 32, vertical grid 38, noise reducing plate 39, rear portion curved surface 310, side 311.The cross section of described wind shield 32 is similar to ellipse, and the part that wind shield 32 exposes nozzle is circular-arc, and namely the noise reducing plate at nozzle mouth place has arc transition.There is being one section aduncate camber line side 311 near exhaust outlet 31 places, and such structure is so that air-flow is at an angle after flowing out from exhaust outlet 31, and this angle is less than or equal to 10 °.In the present embodiment, air-flow is 4 °-8 ° from the angle that exhaust outlet 31 flows out.Exhaust outlet 31 is about 24-33mm at the width of top A-A section, and this width is roughly 28mm in the present embodiment.Definition nozzle rear portion curved surface 310 is the length of nozzle throat area to wind shield 32 distance or rear portion curved surface 310 foremost to the distance of exhaust outlet 31 among the present invention.During mounting block fan housing 32, the length of nozzle 3 top A-A sections is about 10-56mm, and this length is roughly 52mm in the present embodiment.During mounting block fan housing 32, the length of nozzle 3 top A-A sections is not 10-46mm, and in the present embodiment, this length is roughly 42mm.Wind shield 32 comprises the circular arc 321 that is positioned at spray nozzle front end and is positioned at the circular arc 322 of nozzle interior, and simultaneously, to the rear end convergent, and its front end, rear end section are circular-arc wind shield 32 by front end.Separate with vertical grid 38 between wind shield 32 and the noise reducing plate 39, noise reducing plate 39 contacts with the inwall of nozzle 3, plays the effect that reduces noise.Rear portion curved surface 310 with are connected a side 311 and connect, rear portion curved surface 310 is the curved surface away from nozzle exhaust outlet 31, its radius of curvature is 9-25mm.In the present embodiment, rear portion curved surface 310 is about 14mm in the radius of curvature of A-A section.Horizontal grid 37 described in Fig. 2 along the longitudinal grid 38 uniformly-spaced arranges.By horizontal grid 37, the vertically dimensional parameters adjusting of grid 38, the adjusting of the slit quantity of realization nozzle, exit angle, jet size is in order to satisfy the air-out requirement.
Fig. 3 B is the cross-sectional structure schematic representation without the blade fan nozzle bottom of the embodiment of the invention, also is the B-B schematic cross-section of Fig. 2.Comprise wind shield 32, vertical grid 38, noise reducing plate 39, rear portion curved surface 310, side 311.The curvature range of the curved surface 321 of wind shield 32 at the nozzle top is between the 0.23-0.27, preferably between 0.23-0.24, or between 0.24-0.25, or between 0.25-0.26, or between 0.26-0.27; It is about 0.25 that the curvature of this curved surface at the top is set in the present embodiment.The curved surface 321 of wind shield 32 is between the 0.09-0.14 in the curvature range of nozzle bottom, preferably, and between 0.09-0.10, or between the 0.10-0.11, or between the 0.11-0.12, or between the 0.12-0.13, or between the 0.13-0.14; It is 0.11 that the curvature of this curved surface in the bottom is set in the present embodiment.During mounting block fan housing 32, nozzle 3 is at the length 90-160mm of B-B section, and this length is about 120mm in the present embodiment; During mounting block fan housing 32, nozzle 3 is not at the length 70-140mm of B-B section, and this length is about 106mm in the present embodiment.Rear portion curved surface 310 is 14-22mm in the radius of curvature of B-B section, in the present embodiment about this radius of curvature 22mm.Exhaust outlet 31 is about 39mm at the width of B-B section.
The present invention will become flat pattern without the designs of nozzles of blade fan, so that air-flow is at an angle when flowing out, and then the user can experience larger blowing area; What is more important, cross-sectional structure shown in Fig. 3 A, Fig. 3 B has utilized aerodynamic principle better, so that air-flow flows to the user around can driving it from the air-flow of exhaust outlet ejection, and then the air-flow that the user experiences not only comprises from that part of nozzle interior ejection, also comprise the air-flow that is sprayed by nozzle interior to drive and flow to user's part, the air-flow that the user experiences is stronger and blowing area is larger, and then by the nozzle without blade fan provided by the present invention, the user can realize better wind-engaging effect.
Can find out from above, the embodiment of the invention provide without blade fan, adopt the good structural design of wind effect, improved wind-guiding efficient.Simultaneously nozzle arrangements is designed to gradually-reducing shape, compare the air channel of the consistent type of cross-section area, adopted the streamline structure of more optimizing, velocity flow profile, the pressure distribution of its inner air more meet the requirements, thereby the air-flow of ejection can drive its air flow direction user on every side, can further improve air output.Adopted the from outside to inside structure of convergent at mouth so that air-flow exhaust outlet can be at an angle, divergently eject the blowing area that is conducive to extend one's service; Be arranged at the gap structure of mouth, by its slot parameter of reasonably optimizing, can the time air-out speed be improved.Provided by the present invention without blade fan, denoising structure is adopted in many places, and its mechanicalness noise, pneumatic noise etc. have obtained very large reduction on the whole.Its profile is more attractive in appearance simultaneously.
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 (11)
1. the nozzle without blade fan is characterized in that, described nozzle is flat elongated shape, dwindles gradually from bottom to top, and back-end closure, front end are provided with elongate slit shape exhaust outlet, and nozzle outer surface is that Koln reaches curved surface.
2. the nozzle without blade fan according to claim 1 is characterized in that, this nozzle outer surface lateral cross section is 9-25mm away from the range of curvature radius of the curved surface of exhaust outlet.
3. the nozzle without blade fan according to claim 1 is characterized in that, described exhaust outlet place is provided with wind shield, and the part that described wind shield exposes nozzle is circular-arc.
4. the nozzle without blade fan according to claim 3 is characterized in that, described wind shield is convergent from outside to inside, and the curvature of its outer end circular arc is 0.23-0.27.
5. the nozzle without blade fan according to claim 1 is characterized in that, the width of described nozzle exhaust outlet is 3mm-70mm, and the length of described nozzle throat area is 10-160mm.
6. the nozzle without blade fan according to claim 5 is characterized in that, the width of described nozzle exhaust outlet on the top is 3mm-19mm, and the width of described nozzle exhaust outlet in the bottom is 35mm-70mm; The length of described nozzle throat area on the top is 10mm-56mm, and the length of described nozzle throat area in the bottom is 70-160mm.
7. the nozzle without blade fan according to claim 1 is characterized in that, described nozzle further comprises the noise reducing plate that is positioned at nozzle interior and is arranged at vertical grid of exhaust outlet.
8. the nozzle without blade fan according to claim 7 is characterized in that, described exhaust outlet two slits are each side arranged, lay respectively between described wind shield and the described vertical grid, between described noise reducing plate and the described vertical grid.
9. the nozzle without blade fan according to claim 8 is characterized in that, the width of described slit is 0.5mm-4mm.
10. the nozzle without blade fan according to claim 1 is characterized in that, the rear end of described nozzle is convex structure, and the radius of described convex structure is 14mm-22mm.
11. one kind without blade fan, it is characterized in that, comprises base, pedestal and such as the described nozzle of any one among the claim 1-10; Described pedestal is positioned on the base, and nozzle is fixed on the pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210184750XA CN103375444A (en) | 2012-04-11 | 2012-06-06 | Bladeless fan and nozzle thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104577.8 | 2012-04-11 | ||
| CN201210104577 | 2012-04-11 | ||
| CN201210184750XA CN103375444A (en) | 2012-04-11 | 2012-06-06 | Bladeless fan and nozzle thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103375444A true CN103375444A (en) | 2013-10-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210184750XA Pending CN103375444A (en) | 2012-04-11 | 2012-06-06 | Bladeless fan and nozzle thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103375444A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568081A (en) * | 2014-12-19 | 2015-04-29 | 辽宁屹霖科技发展有限公司 | Gooseneck-type spraying nozzle |
| GB2534656A (en) * | 2014-11-20 | 2016-08-03 | Ove Arup Partnership Ltd | Air mass induction device |
| CN106152497A (en) * | 2016-08-31 | 2016-11-23 | 芜湖美的厨卫电器制造有限公司 | The flue assembly of water heater and water heater |
| WO2019120180A1 (en) * | 2017-12-19 | 2019-06-27 | 广东美的环境电器制造有限公司 | Fan head assembly for bladeless air-blowing apparatus, bladeless air-blowing apparatus, head for bladeless fan, and bladeless fan |
| CN111033133A (en) * | 2017-06-29 | 2020-04-17 | 德隆奇电器单一股东有限责任公司 | Fan with cooling device |
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| US20100150699A1 (en) * | 2008-12-11 | 2010-06-17 | Dyson Technology Limited | Fan |
| CN201696365U (en) * | 2010-05-20 | 2011-01-05 | 张钜标 | Flat jet fan |
| CN201771875U (en) * | 2010-09-07 | 2011-03-23 | 李德正 | No-blade fan |
| 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 |
| CN202149074U (en) * | 2011-06-24 | 2012-02-22 | 深圳市创意生活电器有限公司 | Air outlet ring of turbo type bladeless fan |
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2012
- 2012-06-06 CN CN201210184750XA patent/CN103375444A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100150699A1 (en) * | 2008-12-11 | 2010-06-17 | Dyson Technology Limited | Fan |
| CN201696365U (en) * | 2010-05-20 | 2011-01-05 | 张钜标 | Flat jet fan |
| CN201771875U (en) * | 2010-09-07 | 2011-03-23 | 李德正 | No-blade fan |
| 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 |
| CN202149074U (en) * | 2011-06-24 | 2012-02-22 | 深圳市创意生活电器有限公司 | Air outlet ring of turbo type bladeless fan |
Cited By (7)
| 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 |
| CN104568081A (en) * | 2014-12-19 | 2015-04-29 | 辽宁屹霖科技发展有限公司 | Gooseneck-type spraying nozzle |
| CN106152497A (en) * | 2016-08-31 | 2016-11-23 | 芜湖美的厨卫电器制造有限公司 | The flue assembly of water heater and water heater |
| CN111033133A (en) * | 2017-06-29 | 2020-04-17 | 德隆奇电器单一股东有限责任公司 | Fan with cooling device |
| CN111033133B (en) * | 2017-06-29 | 2022-07-19 | 德隆奇电器单一股东有限责任公司 | Fan with cooling device |
| WO2019120180A1 (en) * | 2017-12-19 | 2019-06-27 | 广东美的环境电器制造有限公司 | Fan head assembly for bladeless air-blowing apparatus, bladeless air-blowing apparatus, head for bladeless fan, and bladeless fan |
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Application publication date: 20131030 |