CN101936310A - Fan without fan blades - Google Patents
Fan without fan blades Download PDFInfo
- Publication number
- CN101936310A CN101936310A CN2010102995800A CN201010299580A CN101936310A CN 101936310 A CN101936310 A CN 101936310A CN 2010102995800 A CN2010102995800 A CN 2010102995800A CN 201010299580 A CN201010299580 A CN 201010299580A CN 101936310 A CN101936310 A CN 101936310A
- Authority
- CN
- China
- Prior art keywords
- fan
- nozzle
- relief opening
- air flow
- producing device
- 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
- 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
- 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
Abstract
The invention discloses a fan without fan blades and relates to a fan device, which is characterized by comprising an airflow generating device (1), a nozzle (2) and a connecting pipe (3), wherein the nozzle comprises an internal channel (6), an exhaust port (4) and a closed loop, the airflow generating device is used for producing high-pressure airflow, at least part of the airflow generating device is positioned in the closed loop of the nozzle, and the connecting pipe is connected between the airflow generating device and the nozzle, thereby being a channel for circulation of the high-pressure airflow from the airflow generating device to the nozzle. The device has compact structure and low noise and can provide the airflow with uniform flow rate.
Description
Technical field
The present invention relates to a kind of fan assembly that produces air stream.
Background technique
The Chinese patent application that on May 6th, 2009, publication number was CN 101424279A (application number: 200810177844.8) disclose a kind of fan that is used to produce air stream, this kind fan comprises nozzle and the member that is used to produce by the high pressure draught of nozzle, described member is positioned at outside the closed circuit that described nozzle constitutes, this nozzle comprises the inner passage, be used to receive from the relief opening of the air-flow of inner passage and be close to the coanda surface of nearly relief opening location, and relief opening is arranged to steering flow and is flow through this coanda surface.This kind fan does not need to have flabellum and brings nice and cool effect with regard to producing the comparison uniform airflow.
Be positioned at outside the closed circuit that described nozzle constitutes because this kind fan is used to produce member by the high pressure draught of nozzle, make its volume and shared spatial position bigger, influence its use.So necessary improvement.
Summary of the invention
The present invention aims to provide a kind of improved fan assembly to overcome above-mentioned defective of the prior art.The objective of the invention is to provide a kind of no flabellum fan assembly of compact structure.
In order to achieve the above object, the present invention adopts following technological scheme: a kind of no flabellum fan that is used to produce air stream, it is characterized in that, described fan comprises: air flow-producing device, nozzle and connecting tube, described nozzle comprises inner passage and relief opening and has closed loop, described air flow-producing device is used to produce high pressure draught and has at least part to be positioned at the closed circuit of described nozzle, described connecting tube is connected between described air flow-producing device and the described nozzle, and the passage of circulation is provided from described air flow-producing device to described nozzle for described high pressure draught.
Described air flow-producing device, described nozzle and described connecting tube limit at least one opening, and described fan air outside is aspirated by the high pressure draught that sprays from described relief opening by described opening.
In order to improve the air output of described fan, on described connecting tube, relief opening can be set, on described air flow-producing device, also relief opening can be set, on described connecting tube and described air flow-producing device, relief opening can also be set simultaneously.
For strengthen described fan air outside by described opening by the effect that high pressure draught aspirated of spraying from described relief opening, described nozzle can be provided with the coanda surface that steering flow flows through near described relief opening, and described connecting tube and described air flow-producing device can be provided with the coanda surface that steering flow flows through near described relief opening.
The coanda surface is meant that air flow stream crosses the surface that this surface energy produces Coanda effect.Coanda effect is to say, fluid can be close to the Surface runoff of protruding object.
The loop of the closure that described nozzle had can be single loop, also can be a plurality of loops, for example can be two concentric circular loops that interconnect; The shape of the loop of the closure that described nozzle constituted can be circular, can be oval, can be round rectangle, can be the part annular, can also be other shape.
Described air flow-producing device can adopt multiple shape, is generally cylinder type; Described air flow-producing device has at least part to be positioned at the loop of the closure of described nozzle formation, and described air flow-producing device all is positioned at the loop of the closure of described nozzle formation usually; Described air flow-producing device is usually located at the symmetry center of the loop of the closure that described nozzle constitutes.
Described relief opening can adopt multiple shape, can be circular, can be oval, can be the part annular, can be round rectangle, can also be other shape; Slot-shaped outlet is usually adopted in the outlet of described relief opening, described relief opening at the width in its outlet port usually between 0.2 millimeter to 8 millimeters, preferably between 0.5 millimeter to 6 millimeters; The Way out of described relief opening and the angle of axial direction are usually less than 25 degree, preferably less than 20 degree.
In order to help improving the speed of described relief opening institute jet-stream wind, described nozzle forwardly the cross-sectional dimension of described exhaust ports usually less than its cross-sectional dimension at the rear portion.
Need design according to the performance that fan will reach about the outlet of described relief opening and the distance between the described coanda surface, its distance is usually between 1 millimeter to 30 millimeters.
Described fan usually can be by the technology of shaking the head of existing fan or is increased the coverage area of frame with the wind that increases described fan and exported of shaking the head.
Described fan can also be a desk fan, can be wall fan, can be ceiling fan, can be flooring fan, can also be the fan of other type.
Be meant that about term " high pressure draught " air pressure is higher than the air-flow of described fan around atmospheric pressure.
About term " no flabellum " is to be used for describing that air-flow discharges forward from fan component or ejection and do not need to use impeller assembly.By this definition, the fan of no flabellum can be counted as has output face or the launch site that does not have the blade or the wing, and air-flow edge roughly therefrom discharges or launches towards user's direction.
No flabellum fan can utilize multiple air flow-producing device to provide main air to originate and produce high pressure draught, for example pump, generator, motor or comprise engine rotor and other fluid delivery systems of rotating equipment such as impeller blade.Therefore, do not lie in the required parts of fan secondary function such as extending to power source and component about the illustrative purposes of term " no flabellum ", such as motor.The example of fan secondary function comprises the swing of illumination, adjusting and fan.
The present invention has following good effect:
The air flow-producing device of apparatus of the present invention is positioned at the closed circuit that nozzle constitutes, its compact structure, and it is little to take up room; The closed circuit that nozzle constituted is bigger usually in addition, can the bigger air flow-producing device of receiving volume, and the bigger air flow-producing device of volume provides the high pressure draught that noise is little, throughput is big easily.
Description of drawings
Fig. 1 is the schematic representation of no flabellum fan of the present invention;
Fig. 2 is the cross sectional representation of the nozzle of no flabellum fan shown in Figure 1 along axis X;
Fig. 3 is second embodiment of no flabellum fan of the present invention;
Fig. 4 is the 3rd embodiment of no flabellum fan of the present invention;
Fig. 5 is the 4th embodiment of no flabellum fan of the present invention;
Fig. 6 has showed the 5th embodiment of no flabellum fan of the present invention.
Embodiment
Fig. 1 is the schematic representation of no flabellum fan of the present invention.Apparatus of the present invention comprise: air flow-producing device 1, nozzle 2 and connecting tube 3, and with reference to figure 2, nozzle 2 comprises inner passage 6, relief opening 4 and the coanda surface 8 that is provided with near relief opening 4, it is the closed circuit of the circle of symmetry axis with the axis X that nozzle 2 constitutes one, air flow-producing device 1 is symmetry axis with the axis X and is positioned at the circular closure loop that nozzle 2 is constituted fully, two connecting tubes 3 are connected between air flow-producing device 1 and the nozzle 2, nozzle 2 is fixed on the support 5, air flow-producing device 1, nozzle 2 and two connecting tubes 3 define two openings 7, and described fan air outside is aspirated by the high pressure draught that sprays from relief opening 4 by opening 7.
When this kind fan uses, be positioned at the air flow-producing device 1 operation work of the circular closure loop that nozzle 2 constituted, air is drawn into from the import (figure does not draw) that is arranged in air flow-producing device 1 rear end, promoting the back through air pressure sends in the inner passage 6 of nozzle 2 by two connecting tubes 3, and be deflated mouthfuls 4 ejections, be deflated mouthful 4 high pressure draughts that sprayed from the air of ambient, external environment by two openings 7 and entrainment, air-flow that is ejected and the air-flow that entrainmented are in conjunction with to produce the total air flow of ejaculation forward.
Fig. 3 shows second embodiment of no flabellum fan of the present invention.From figure, be easy to find out, apparatus of the present invention comprise: air flow-producing device 1, nozzle 2 and 4 connecting tubes 3, it is the closed circuit of the circle of symmetry axis that nozzle 2 has with the axis X, air flow-producing device 1 is symmetry axis with the axis X and is positioned at the circular closure loop that nozzle 2 is constituted fully, air flow-producing device 1, nozzle 2 and 4 connecting tubes 3 define 4 openings 7, on loop wall, all be provided with relief opening 4 around described each opening 7, promptly at nozzle 2, all be provided with relief opening 4 on connecting tube 3 and the air flow-producing device 1, be deflated mouthful 4 high pressure draughts that sprayed from the air of ambient, external environment by 4 openings 7 and entrainment.
Fig. 4 shows the 3rd embodiment of no flabellum fan of the present invention.As can be seen from the figure, present embodiment is similar to embodiment shown in Figure 3, and just the shape of nozzle 2 is different, and the nozzle 2 of present embodiment partly is a round rectangle perpendicular to the shape of the cross section of axis X.
Fig. 5 shows the 4th embodiment of no flabellum fan of the present invention.As can be seen from the figure, present embodiment is also similar to embodiment shown in Figure 3, is that set relief opening 4 is different, in the present embodiment, on each connecting tube 3, only be provided with several rows of gas port, and on each connecting tube 3 shown in Figure 3, be provided with two row's relief openings.
Fig. 6 shows another embodiment of no flabellum fan of the present invention.As can be seen from the figure, present embodiment is also similar to embodiment shown in Figure 3, is that set support 5 is different, and in the present embodiment, support 5 is the support of a floor model fan, and this support is fixedlyed connected with nozzle 2.In another preferred embodiment, support 5 can be fixedlyed connected with air flow-producing device 1.
Although showed and described and thought preferred embodiments of the invention at present, apparent, those skilled in the art can carry out various changes and improvements, and does not deviate from the scope of the present invention that is limited by appended claims.
Claims (10)
1. no flabellum fan that is used to produce air stream, it is characterized in that, described fan comprises: air flow-producing device (1), nozzle (2) and connecting tube (3), described nozzle comprises inner passage (6) and relief opening (4) and has closed loop, described air flow-producing device is used to produce high pressure draught and has at least part to be positioned at the closed circuit of described nozzle, described connecting tube is connected between described air flow-producing device and the described nozzle, and the passage of circulation is provided from described air flow-producing device to described nozzle for described high pressure draught.
2. no flabellum fan as claimed in claim 1, it is characterized in that, described air flow-producing device, described nozzle and described connecting tube limit at least one opening (7), and described fan air outside is aspirated by the high pressure draught that sprays from described relief opening by described opening.
3. as the described no flabellum fan of one of claim 1 to 2, it is characterized in that, on described connecting tube, also be provided with relief opening.
4. as the described no flabellum fan of one of claim 1 to 2, it is characterized in that, on described air flow-producing device, also be provided with relief opening.
5. as the described no flabellum fan of one of claim 1 to 2, it is characterized in that, on described connecting tube and described air flow-producing device, all be provided with relief opening.
6. as the described no flabellum fan of one of claim 1 to 2, it is characterized in that what described nozzle comprised close described relief opening setting is the coanda surface (8) that the guiding high pressure draught that described relief opening sprayed flows through.
7. as the described no flabellum fan of one of claim 1 to 2, it is characterized in that the loop of the closure that described nozzle constitutes is a circular loop.
8. as the described no flabellum fan of one of claim 1 to 2, it is characterized in that it is annular that the loop of the closure that described nozzle constitutes has part at least.
9. as the described no flabellum fan of one of claim 1 to 2, it is characterized in that described relief opening is slot-shaped relief opening, described relief opening at the width in its outlet port between 0.5 millimeter to 6 millimeters.
10. as the described no flabellum fan of one of claim 1 to 2, it is characterized in that described air flow-producing device is a cylinder type, and be positioned at the symmetry center of the loop of the closure that described nozzle constitutes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102995800A CN101936310A (en) | 2010-10-04 | 2010-10-04 | Fan without fan blades |
| PCT/CN2011/078612 WO2012045255A1 (en) | 2010-10-04 | 2011-08-18 | Bladeless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102995800A CN101936310A (en) | 2010-10-04 | 2010-10-04 | Fan without fan blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101936310A true CN101936310A (en) | 2011-01-05 |
Family
ID=43389819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102995800A Pending CN101936310A (en) | 2010-10-04 | 2010-10-04 | Fan without fan blades |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101936310A (en) |
| WO (1) | WO2012045255A1 (en) |
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|---|---|
| WO2012045255A1 (en) | 2012-04-12 |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 310052 Hangzhou City, Binjiang District Province, No., Shing Road, Garden Court, building 2, room 3, unit 1402, room 3191 Applicant after: Ren Wenhua Address before: 310003, room 2, unit 129, 402 lane, lane, Hangzhou, Zhejiang Applicant before: Ren Wenhua |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110105 |