CN105041730A - Bladeless fan - Google Patents
Bladeless fan Download PDFInfo
- Publication number
- CN105041730A CN105041730A CN201510531160.3A CN201510531160A CN105041730A CN 105041730 A CN105041730 A CN 105041730A CN 201510531160 A CN201510531160 A CN 201510531160A CN 105041730 A CN105041730 A CN 105041730A
- Authority
- CN
- China
- Prior art keywords
- air
- jet pipe
- flow
- madial wall
- flow path
- 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
Links
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
-
- 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
-
- 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
Abstract
A bladeless fan is mainly composed of an annular airflow jetting device, a base and an airflow pressurizing device. First jetting pipes and second jetting pipes are arranged on the inner side wall of the airflow jetting device at intervals, and a separation block is arranged between every two adjacent first jetting pipe and second jetting pipe. Due to the fact that the air output area is reduced, air pressure is accordingly increased on the premise that the other functional parameters are consistent, air can be blown further, and more air can be entrained into an airflow channel.
Description
Technical field
The present invention relates to a kind of without blade fan, belong to the optimisation technique without blade fan.
Background technique
Application number be 200810177843.3 be disclose a kind of fan in the patent document of 200810177844.8 with application number, be made up of pedestal and the annular row gas port be arranged on pedestal, the inner passage and relief opening that receive from the air-flow in pedestal is provided with in annular row gas port, the air of fan outside is aspirated by the air-flow that relief opening ejects, and the air-flow blowing to user is increased.The advantage of this design does not have exposed blade, solve blade and be difficult to cleaning and the deficiency with potential safety hazard, and reduce noise, there is stronger visual impact, the uniform air-flow of the speed ejected by relief opening, utilize Coanda effect to change the flow direction of relief opening air-out well, and drive the air of fan outside to flow to user, for ensureing air output, the power of suction fan must be strengthened, improving the rotating speed of suction fan.
Usually, adopt the design of ring-type spout without blade fan, the angle of ring-type spout is fixed, and usually only has one ring-type spout, and deficiency is that the throughput in the middle part of air-flow path is more weak.
Therefore, needing to find one effectively can strengthen blast, more air can be entrainmented and air-flow in the middle part of air-flow path relatively strong without blade fan.
Summary of the invention
The object of this invention is to provide one and effectively can strengthen blast, more air can be entrainmented and air-flow in the middle part of air-flow path relatively strong without blade fan.
Technological scheme of the present invention is: a kind of without blade fan, forms primarily of annular airflow injection apparatus 1, pedestal 2 and air-flow supercharging device 3; Airflow injection device 1 is positioned at above pedestal 2, and middle part limits an air-flow path; Airflow injection device comprises gas collection storehouse 11, air flue 12, outer side wall 13, madial wall 14; Gas collection storehouse 11 is positioned at bottom, is communicated with the air outlet of the air-flow supercharging device 3 being positioned at pedestal 2; Pedestal 2 outer wall is provided with inlet hole, air flue 12 is the annular hollow passages being positioned at airflow injection device 1 inside, docked by outer side wall 13 and madial wall 14 and limit, on the madial wall 14 of airflow injection device 1, interval arranges the first jet pipe 16 and the second jet pipe 17, and the first described jet pipe and the second jet pipe arrange in the form of a ring on madial wall; The angle of 5-45 degree is formed between the air-flow that first jet pipe 16 blows out and the air-flow that the second jet pipe blows out; The air-flow of the second jet pipe ejection, does not directly blow to the outlet side of air-flow path, but side direction blowout, in air-flow path, form swirl shape air-flow.
The air-flow that the first described jet pipe 16 sprays is horizontal by the angle of 0-30 degree, and the air-flow that the second described jet pipe 17 sprays is horizontal by the angle of 15 to 60 degree; The edge being positioned at air flue 12 inside at the first described jet pipe 16 is provided with flow guide device; The edge being positioned at air flue 12 inside at the second described jet pipe 17 is provided with flow guide device.
The angle of the second described jet pipe and horizontal plane is than the first jet pipe 16 5-45 degree large with the angle of horizontal plane.
Spacing block 15 is provided with between the first adjacent jet pipe and the second jet pipe.
The first described jet pipe 16 tilts from the outlet side to air-flow path in air flue 12, and a part of air-flow is along madial wall 14 wall flow to the outlet side of air-flow path.
Projection in the plane that the second described jet pipe 17 launches at madial wall 14 and the air inlet end face of madial wall form 5 to 85 angles of spending.
Beneficial effect:
On the madial wall of 1, airflow injection device, interval arranges the first jet pipe and the second jet pipe, spacing block is provided with between the first adjacent jet pipe and the second jet pipe, because the area of air-out reduces, under the prerequisite that other functional parameter is consistent, blast is corresponding to be increased, form larger negative pressure at the inlet end of air-flow path, more air can be entrainmented and enter air-flow path.
2, the first jet pipe and the air-flow that the second jet pipe sprays form the different air-flow of two circle angles, can increase the throughput in the middle part of air-flow path.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention;
Fig. 2 is schematic appearance of the present invention;
Fig. 3 is the partial enlarged drawing of A in Fig. 1;
Fig. 4 is the partial enlarged drawing of B in Fig. 2.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of without blade fan, form primarily of annular airflow injection apparatus 1, pedestal 2 and air-flow supercharging device 3.Airflow injection device 1 is positioned at above pedestal 2, limits an air-flow path in the middle part of it; Airflow injection device comprises gas collection storehouse 11, air flue 12, outer side wall 13, madial wall 14; Gas collection storehouse 11 is positioned at bottom, is communicated with the air outlet of the air-flow supercharging device 3 being positioned at pedestal 2; Pedestal 2 outer wall is provided with inlet hole, and air flue 12 is the annular hollow passages being positioned at airflow injection device 1 inside, is docked limit by outer side wall 13 and madial wall 14.During the work of air-flow supercharging device, the air in the external world is sucked, through supercharging after-blow intake duct 12 from the inlet hole be located at base outer wall.
On the madial wall 14 of airflow injection device 1, interval arranges the first jet pipe 16 and the second jet pipe 17, is provided with spacing block 15 between the first adjacent jet pipe and the second jet pipe; The first described jet pipe and the second jet pipe arrange in the form of a ring on madial wall; The angle of 5-45 degree is formed between the air-flow that first jet pipe 16 blows out and the air-flow that the second jet pipe blows out.Air-flow in air flue 12, from the first jet pipe and the ejection of the second jet pipe, the different air-flow of two circle spray angles is formed at the inlet end of air-flow path, blow to that circle air-flow in the middle part of air-flow path, the middle part of air-flow path inlet end is made to form stronger negative pressuren zone, entrainment the middle part that ambient air enters air-flow path, the throughput in the middle part of air-flow path is increased; Another circle air-flow flows to outlet side along the surface of madial wall, utilizes Coanda effect to entrainment air-flow path ambient air; Above-mentioned two circle air-flows merge the outlet side flowing to air-flow path.Usually, be only provided with a circle spout without blade fan and angle is fixed, cause the throughput in the middle part of air-flow path more weak.The present invention has the air-flow of 5-45 degree angle owing to forming two circle injection directions, therefore, it is possible to overcome the more weak defect of air-flow in the middle part of air-flow path, the air-flow blowing to user is more even.
Summation due to the nozzle hole sectional area of the first jet pipe and the second jet pipe is less than the area of continuous print annular jet, and therefore, the air-flow air pressure of ejection is larger, can blow farther, the negative pressure formed is also corresponding larger, also just can entrainment more air, thus better airflow effects.
The first described jet pipe 16 tilts from the outlet side to air-flow path in air flue 12, and a part of air-flow is along madial wall 14 wall flow to the outlet side of air-flow path.
The air-flow that the first described jet pipe 16 sprays is horizontal by the angle of 0-30 degree, and the air-flow that the second described jet pipe 17 sprays is horizontal by the angle of 15 to 60 degree; The angle of the second described jet pipe and horizontal plane is than the first jet pipe 16 5-45 degree large with the angle of horizontal plane.
The first described jet pipe 16 and the inwall of the second jet pipe 17 curved, enable the air-flow in air flue flow to air-flow path swimmingly.
Projection in the plane that the second described jet pipe 17 launches at madial wall 14 and the air inlet end face of madial wall form 5 to 85 angles of spending.The air-flow of the second jet pipe ejection, does not directly blow to the outlet side of air-flow path, but side direction blowout, in air-flow path, form swirl shape air-flow.
The edge being positioned at air flue 12 inside at the first described jet pipe 16 is provided with flow guide device, guides airflow smooth ground to flow into the first jet pipe.
The edge being positioned at air flue 12 inside at the second described jet pipe 17 is provided with flow guide device, guides airflow smooth ground to flow into the second jet pipe.
Under the power of air-flow supercharging device and all identical prerequisite of performance, because the present invention adopts centre to leave the design of the independent jet pipe of spacing block, actual air-out area is reduced, thus blast is increased, the distance of jet-impingement is also just farther, simultaneously, according to venturi principle, under stronger jet-impingement condition, the negative pressure of air-flow path inlet end is larger, can entrainment more air and enter air-flow path.
Because air has diffusivity, although leave distance between jet pipe, because air-flow has diffusivity, user can not feel has space between air-flow.
Above-described embodiment is only used to interpretation purposes of the present invention, and is not limitation of the present invention, those skilled in the art, in essential scope of the present invention, makes a variety of changes or substitutes, also should belong to protection category of the present invention.
Claims (6)
1., without a blade fan, form primarily of annular airflow injection apparatus 1, pedestal 2 and air-flow supercharging device 3; Airflow injection device (1) is positioned at pedestal (2) top, and middle part limits an air-flow path; Airflow injection device comprises gas collection storehouse (11), air flue (12), outer side wall (13), madial wall (14); Gas collection storehouse (11) is positioned at bottom, is communicated with the air outlet of the air-flow supercharging device (3) being positioned at pedestal (2); Pedestal (2) outer wall is provided with inlet hole, air flue (12) is positioned at an inner annular hollow passage of airflow injection device (1), docked by outer side wall (13) and madial wall (14) and limit, it is characterized in that: the upper interval of the madial wall (14) in airflow injection device (1) arranges the first jet pipe (16) and the second jet pipe (17), and the first described jet pipe and the second jet pipe arrange in the form of a ring on madial wall; The angle of 5-45 degree is formed between the air-flow that first jet pipe (16) blows out and the air-flow that the second jet pipe blows out; The air-flow of the second jet pipe ejection, does not directly blow to the outlet side of air-flow path, but side direction blowout, in air-flow path, form swirl shape air-flow.
2. according to claim 1 without blade fan, it is characterized in that: the air-flow that described the first jet pipe (16) sprays is horizontal by the angle of 0-30 degree, and the air-flow that described the second jet pipe (17) sprays is horizontal by the angle of 15 to 60 degree; The edge being positioned at air flue (12) inner at described the first jet pipe (16) is provided with flow guide device; The edge being positioned at air flue (12) inner at described the second jet pipe (17) is provided with flow guide device.
3. according to claim 1 without blade fan, it is characterized in that: the second described jet pipe 5-45 degree larger with the angle of horizontal plane than the first jet pipe (16) with the angle of horizontal plane.
4. according to claim 1 without blade fan, it is characterized in that: between the first adjacent jet pipe and the second jet pipe, be provided with spacing block (15).
5. according to claim 1 without blade fan, it is characterized in that: the outlet side of described the first jet pipe (16) to air-flow path in air flue (12) tilts, and a part of air-flow is along madial wall (14) wall flow to the outlet side of air-flow path.
6. according to claim 1 without blade fan, it is characterized in that: the projection in the plane that described the second jet pipe (17) launches at madial wall (14) and the air inlet end face of madial wall form 5 to 85 angles of spending.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210531285.2A CN102996531B (en) | 2012-12-11 | 2012-12-11 | The two angle jet pipe of band without blade fan |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210531285.2A Division CN102996531B (en) | 2012-12-11 | 2012-12-11 | The two angle jet pipe of band without blade fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105041730A true CN105041730A (en) | 2015-11-11 |
Family
ID=47925510
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510531136.XA Active CN105134653B (en) | 2012-12-11 | 2012-12-11 | Airflow jetting device used for bladeless fan |
| CN201210531285.2A Expired - Fee Related CN102996531B (en) | 2012-12-11 | 2012-12-11 | The two angle jet pipe of band without blade fan |
| CN201510531160.3A Pending CN105041730A (en) | 2012-12-11 | 2012-12-11 | Bladeless fan |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510531136.XA Active CN105134653B (en) | 2012-12-11 | 2012-12-11 | Airflow jetting device used for bladeless fan |
| CN201210531285.2A Expired - Fee Related CN102996531B (en) | 2012-12-11 | 2012-12-11 | The two angle jet pipe of band without blade fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN105134653B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605813A (en) * | 2017-09-30 | 2018-01-19 | 广东美的环境电器制造有限公司 | Head and bladeless fan for bladeless fan |
| CN109185238A (en) * | 2018-11-19 | 2019-01-11 | 浙江工商大学 | A kind of noise abatement formula bladeless fan structure |
| CN113647735A (en) * | 2021-08-26 | 2021-11-16 | 深圳市小题大作科技有限公司 | Air blowing barrel and air blower |
Citations (5)
| 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 |
| CN202017665U (en) * | 2010-12-31 | 2011-10-26 | 朱卓瀛 | A fan device without blades |
| CN102454645A (en) * | 2010-10-20 | 2012-05-16 | 戴森技术有限公司 | Fan assembly |
| US20120163977A1 (en) * | 2010-12-23 | 2012-06-28 | Dyson Technology Limited | Fan |
| US20120189439A1 (en) * | 2011-01-25 | 2012-07-26 | Shun-Chen Chang | Fan assembly |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2463698B (en) * | 2008-09-23 | 2010-12-01 | Dyson Technology Ltd | A fan |
| CN102251993A (en) * | 2010-05-21 | 2011-11-23 | 海尔集团公司 | Bladeless fan |
| CN201771875U (en) * | 2010-09-07 | 2011-03-23 | 李德正 | No-blade fan |
| GB2482547A (en) * | 2010-08-06 | 2012-02-08 | Dyson Technology Ltd | A fan assembly with a heater |
| GB2484275A (en) * | 2010-10-04 | 2012-04-11 | Dyson Technology Ltd | A portable bladeless fan comprising input terminal for direct current power input source |
| CN101985949A (en) * | 2010-11-29 | 2011-03-16 | 任文华 | Bladeless fan device |
| CN102182712A (en) * | 2011-05-07 | 2011-09-14 | 应辉 | Fan |
| CN202937524U (en) * | 2012-12-11 | 2013-05-15 | 李耀强 | Vaneless fan provided with double-angle spray pipe |
-
2012
- 2012-12-11 CN CN201510531136.XA patent/CN105134653B/en active Active
- 2012-12-11 CN CN201210531285.2A patent/CN102996531B/en not_active Expired - Fee Related
- 2012-12-11 CN CN201510531160.3A patent/CN105041730A/en active Pending
Patent Citations (5)
| 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 |
| CN102454645A (en) * | 2010-10-20 | 2012-05-16 | 戴森技术有限公司 | Fan assembly |
| US20120163977A1 (en) * | 2010-12-23 | 2012-06-28 | Dyson Technology Limited | Fan |
| CN202017665U (en) * | 2010-12-31 | 2011-10-26 | 朱卓瀛 | A fan device without blades |
| US20120189439A1 (en) * | 2011-01-25 | 2012-07-26 | Shun-Chen Chang | Fan assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605813A (en) * | 2017-09-30 | 2018-01-19 | 广东美的环境电器制造有限公司 | Head and bladeless fan for bladeless fan |
| CN107605813B (en) * | 2017-09-30 | 2019-03-29 | 广东美的环境电器制造有限公司 | Head and bladeless fan for bladeless fan |
| CN109185238A (en) * | 2018-11-19 | 2019-01-11 | 浙江工商大学 | A kind of noise abatement formula bladeless fan structure |
| CN109185238B (en) * | 2018-11-19 | 2019-08-23 | 浙江工商大学 | A kind of noise abatement formula bladeless fan structure |
| CN113647735A (en) * | 2021-08-26 | 2021-11-16 | 深圳市小题大作科技有限公司 | Air blowing barrel and air blower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102996531A (en) | 2013-03-27 |
| CN105134653B (en) | 2017-05-17 |
| CN102996531B (en) | 2015-12-02 |
| CN105134653A (en) | 2015-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103206415B (en) | Airflow injection device | |
| CN103133431B (en) | Air supercharging device of bladeless fan | |
| CN106594828B (en) | A kind of top-sucking kitchen ventilator | |
| CN102996531B (en) | The two angle jet pipe of band without blade fan | |
| CN101592169B (en) | Pneumatic suction fan | |
| CN206414220U (en) | Dust catcher exhaust air flue | |
| CN106524252A (en) | Extractor hood | |
| CN103867498A (en) | Bladeless fan provided with independent spray holes | |
| CN105020757B (en) | A kind of fan structure of smoke exhaust ventilator forming artificial spout | |
| CN202937525U (en) | Vaneless fan provided with independent spraying holes | |
| CN203821004U (en) | Blowing and suction device of spinning frame cleaner | |
| CN203848360U (en) | Draught fan structure of extractor hood capable of forming man-made tornado | |
| CN202182069U (en) | Bladeless fan | |
| CN202937524U (en) | Vaneless fan provided with double-angle spray pipe | |
| CN105057278A (en) | Dust blowing and sucking device for surface of coiled material | |
| CN109605720B (en) | Inner cooling structure of plastic film blowing machine | |
| KR20120104784A (en) | Safety fan having air nozzle | |
| CN206191696U (en) | Range hood | |
| KR102096778B1 (en) | Bladeless Fans With Front And Rear Double Air Vents | |
| CN202937526U (en) | Vaneless fan provided with nozzle pressurizing device | |
| CN202381413U (en) | Air channel of bladeless fan | |
| CN202833053U (en) | Blade-free fan with hollow impeller | |
| CN206131108U (en) | Range hood | |
| CN103867497A (en) | Bladeless fan provided with nozzle boosting device | |
| CN206291269U (en) | A kind of top-sucking kitchen ventilator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |
|
| WD01 | Invention patent application deemed withdrawn after publication |