CN102230482B - Bladeless fan - Google Patents
Bladeless fan Download PDFInfo
- Publication number
- CN102230482B CN102230482B CN2011101856330A CN201110185633A CN102230482B CN 102230482 B CN102230482 B CN 102230482B CN 2011101856330 A CN2011101856330 A CN 2011101856330A CN 201110185633 A CN201110185633 A CN 201110185633A CN 102230482 B CN102230482 B CN 102230482B
- Authority
- CN
- China
- Prior art keywords
- air
- jet
- flow path
- impingement device
- inwall
- 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.)
- Expired - Fee Related
Links
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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
-
- 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
The invention discloses a bladeless fan. The bladeless fan consists of a base and an air flow jetting device which is positioned above the base, wherein an air inlet is formed on the shell of the base; the air flow jetting device has a hollow ring-shaped structure; a hollow part is a first air flow channel; and a ring-shaped second air flow channel and a ring-shaped air outlet are formed on the air flow jetting device. The bladeless fan is provided with the first air flow channel which is the same as that of the common bladeless fan, and is also provided with the second air flow channel, and air on the back side and the lateral sides of the fan can be extracted effectively, so that the fan has larger air volume and a more obvious effect.
Description
Technical field
The present invention relates to a kind of fan, belong to the optimisation technique of fan.
Background technique
Existing fan is by the driven by motor blade rotary, by blade air pressurized is accelerated then to blow to the user, advantage is to bring the sensation of blowing to the user, but there are following 4 deficiencies: the one, the velocity of blade of rotation is very high, run into because of carelessness and can damage, although most fan adopts outer cover to surround blade to reduce danger; The 2nd, blade and outer cover are difficult to clean; The 3rd, also can produce throat sound in the blade rotary process, bring interference to the user; The 4th, because air-flow changes when passing blade surface, the wind of producing by boasting is inhomogeneous, and the user can feel a burst of high wind that similar pulse is such.
Application number be 200810177843.3 be to disclose a kind of fan in 200810177844.8 the patent document with application number, formed by pedestal and the annular row gas port that is installed on the pedestal, be provided with the inner passage and the relief opening that receive from the air-flow in the pedestal in the annular row gas port, the air of fan outside is deflated the air-flow suction that mouth ejects, and the air-flow that blows to the user is increased.The advantage of this design is not have exposed blade, solved that blade is difficult to clean and with the deficiency of potential safety hazard, and reduced and fallen sound, has stronger visual impact, the uniform air-flow of speed that ejects by relief opening, utilize well Coanda effect to change the flow direction of relief opening air-out, and the air that drives the fan outside flows to the user, make the user experience comparatively stable blowing effect.Deficiency be can only the suction fan rear air flow but air that can not the suction fan side to the user.
Therefore, need to seek a kind of without blade fan, air that not only can the suction fan rear, air that can also the suction fan side makes the air that flows to the user more, namely air quantity is more.
Summary of the invention
The purpose of this invention is to provide a kind of without blade fan, air that not only can the suction fan rear, air flow user that can also the suction fan side.
Technological scheme of the present invention is: be comprised of pedestal 1 and the jet-impingement device 2 that is positioned at pedestal 1 top without blade fan, the shell of described pedestal 1 is provided with suction port 11, pedestal 1 positioned inside motor 12, impeller 13 by motor 12 drives, air passageways 14, described jet-impingement device 2 is the loop configuration of hollow, hollow partly is the first air-flow path 21, jet-impingement device 2 inside are provided with air flue 25, jet-impingement device 2 is provided with the relief opening 23 of annular, described air flue 25 is communicated with relief opening 23, is provided with the second air-flow path 22 of annular at jet-impingement device 2; When the main air flow high speed flow is crossed the exhaust outlet of the second air-flow path 22, can produce venturi-effect, the air-flow of fan side is entrainmented by the second air-flow path 22 enter in the first air-flow path 21.
The suction port of described the second air-flow path 22 is positioned at the outer wall of jet-impingement device 2, and the air outlet is positioned at the inwall of jet-impingement device 2.
Described the second air-flow path 22 is separated by demarcation strip 24 and air flue 25, and described demarcation strip 24 is connected by the puff prot 27 of connecting tendon 26 with annular.
Described air flue 25 is the air-flow paths that are positioned at jet-impingement device 2 inside, and being linked in sequence by outer wall 28, demarcation strip 24 and inwall 29 forms.
One end of described outer wall 28 is connected with demarcation strip 24, and the other end is crooked and wrap up the end of inwall 29 to the direction of inwall 29; One end of described inwall 29 is connected with demarcation strip 24, and the other end curves inwardly, and bent part is thickeied gradually end and is water-drop-shaped; The gap is left in the inboard of the end of described inwall 29 and outer wall 28, forms the relief opening 23 that is communicated with air flue 25.
Described air flue 25 by being positioned at jet-impingement device 2 belows through hole and air passageways 14 UNICOMs of pedestal 1.
The invention has the beneficial effects as follows:
1, also be provided with the second air-flow path except having with common without the same the first air-flow path of blade fan, the air of suction fan fan and side effectively, the air quantity that fan is blown out is larger, more remarkable effect.
2, formed the coanda surface around the relief opening, steering flow flows to.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is main TV structure partial sectional view of the present invention;
Fig. 2 is that partial sectional view is looked on a left side of the present invention;
Fig. 3 is the partial enlarged drawing of Fig. 2;
Fig. 4 is the partial sectional view of overlooking of the present invention;
Fig. 5 is the External view of one embodiment of the present of invention.
Among the figure 1, pedestal, 11, suction port, 12, motor, 13, impeller, 14, air flue, 2, jet-impingement device, the 21, first air-flow path, the 22, second air-flow path, 23, relief opening, 24, demarcation strip, 25, air flue, 26, connecting tendon, 27, puff prot, 28, outer wall, 29, inwall.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, formed by pedestal 1 and the jet-impingement device 2 that is positioned at pedestal 1 top without blade fan, the shell of described pedestal 1 is provided with suction port 11, pedestal 1 positioned inside motor 12, by the impeller 13 of motor 12 driven rotary, air passageways 14, described jet-impingement device 2 is the loop configuration of hollow, and hollow partly is the first air-flow path 21, is provided with the second air-flow path 22 of annular and the relief opening 23 of annular at jet-impingement device 2.Impeller 13 is to be placed in the shell of pedestal 1, helps air amount and to supercharging air, then air is blown into jet-impingement device 2.Jet-impingement device 2 is the loop configuration of hollow, also can be square or oval, as shown in Figure 5, as long as the axis symmetry.
The intake grill of described the second air-flow path 22 is positioned at the outer wall of jet-impingement device 2, and exhaust outlet is positioned at the inwall of jet-impingement device 2.Make the outer air of jet-impingement device 2 outer walls, can pass through the second air-flow path 22, import in the first air-flow path 21.
Described the second air-flow path 22 is separated by demarcation strip 24 and air flue 25, and described demarcation strip 24 is connected with ring jet mouth 27 by connecting tendon 26.
Described air flue 25 is the air-flow paths that are positioned at jet-impingement device 2 inside, and being linked in sequence by outer wall 28, demarcation strip 24 and inwall 29 forms.Therefore, in the situation that take equal space, air flue 25 of the present invention is than other airway constrictions without blade fan, so air pressure is larger, jet power is stronger.
One end of described outer wall 28 is connected with demarcation strip 24, and the other end is crooked and wrap up the end of inwall 29 to the direction of inwall 29.One end of described inwall 29 is connected with demarcation strip 24, the other end curves inwardly, bent part is thickeied gradually end and is water-drop-shaped, that is to say, the end of outer wall 29 is the circular arc bending towards the direction of a side direction outer wall 28 of air flue 25, high-pressure air in the air flue 25 can be flowed out swimmingly along the inboard camber line of inwall 29, through relief opening 23 ejections.
The gap is left in the inboard of the end of described inwall 29 and outer wall 28, forms the relief opening 23 of the annular that is communicated with air flue 25.
Described air flue 25 by being positioned at jet-impingement device 2 belows through hole and air passageways 14 UNICOMs of pedestal 1.
The air-flow that the present invention blows to the user comprises three parts, and first part is the main air flow from 23 ejections of annular row gas port; The second part is main air flow when flowing, and attracts the air-flow at fan rear to enter the first air-flow path 21; The 3rd part is that the main air flow high speed flow is when crossing the exhaust outlet of the second air-flow path 22, can produce venturi-effect, the air-flow of fan side entrainmented by the second air-flow path 22 enter in the first air-flow path 21, above-mentioned three strands of air-flows are merged into one more powerful air-flow.
During work, motor 12 impeller 12 rotations in the pedestal 1 suck the air of outside from suction port, through entering air passageways 14 after the pressurization, enter air flue 25 by the through hole that is located at jet-impingement device 2 belows again, and are spouting from annular row gas port 23 at last.Because inwall 29 curves inwardly towards an end of annular row gas port 23, bent part is more thickeied and is water-drop-shaped, makes the side line bar smoothness towards air flue, and like this, the air-flows in the air flue 25 will flow toward annular row gas port 23 swimmingly, from 23 ejections of annular row gas port.Because inwall 29 curves inwardly, therefore, the surface of the inwall 29 around annular row gas port 23 forms the coanda surface, make the air-flow of relief opening 23 ejections change the flow direction, surface along inwall 29 blows to the user, and entrainment the air that is positioned at jet-impingement device 2 rears and blow to the user by the first air-flow path 21, simultaneously, because the exhaust outlet of the second air-flow path 22 is positioned at the inwall of jet-impingement device 2, when the air flow stream that ejects from the annular row gas port is crossed this position, according to venturi-effect, exhaust outlet at the second air-flow path 22 can produce low pressure area, attract the outer air of jet-impingement device 2 outer walls to flow into the second air-flow path 22, import again the first air-flow path 21 and blow to the user.
Therefore, of the present invention without blade fan, entrainment the air-flow that enters the first air-flow path 21 than application number be 200810177843.3 with application number be that disclosed a kind of fan is large in 200810177844.8 the patent document, therefore, of the present invention without blade fan, under comparable size, power, can produce more powerful air-flow, namely the larger effect of wind is better.
Above-described embodiment only is interpretation purposes of the present invention, and is not to be limitation of the present invention, and those skilled in the art in essential scope of the present invention, make a variety of changes or substitute, and also should belong to protection category of the present invention.
Claims (6)
1. formed by pedestal (1) and the jet-impingement device (2) that is positioned at pedestal (1) top without blade fan, the shell of described pedestal (1) is provided with suction port (11), pedestal (1) positioned inside motor (12), impeller (13) by motor (12) drive, air passageways (14), described jet-impingement device (2) is the loop configuration of hollow, hollow partly is the first air-flow path (21), jet-impingement device 2 inside are provided with air flue (25), jet-impingement device (2) is provided with the relief opening (23) of annular, described air flue (25) is communicated with relief opening (23), it is characterized in that: the second air-flow path (22) that is provided with annular at jet-impingement device (2); When the main air flow high speed flow is crossed the exhaust outlet of the second air-flow path (22), can produce venturi-effect, the air-flow of fan side is entrainmented by the second air-flow path (22) enter in the first air-flow path (21).
2. according to claim 1 without blade fan, it is characterized in that: the intake grill of described the second air-flow path (22) is positioned at the outer wall of jet-impingement device (2), and exhaust outlet is positioned at the inwall of jet-impingement device (2).
3. according to claim 2 without blade fan, it is characterized in that: described the second air-flow path (22) is separated by demarcation strip (24) and air flue (25), and described demarcation strip (24) is connected by the puff prot (27) of connecting tendon (26) with annular.
4. according to claim 3 without blade fan, it is characterized in that: described air flue (25) is to be positioned at the inner air-flow path of jet-impingement device (2), and being linked in sequence by outer wall (28), demarcation strip (24) and inwall (29) forms.
5. according to claim 4 without blade fan, it is characterized in that: an end of described outer wall (28) is connected with demarcation strip (24), and the other end is crooked and wrap up the end of inwall (29) to the direction of inwall (29); One end of described inwall (29) is connected with demarcation strip (24), and the other end curves inwardly, and bent part is thickeied gradually end and is water-drop-shaped; The gap is left in the inboard of the end of described inwall (29) and outer wall (28), forms the relief opening (23) that is communicated with air flue (25).
6. according to claim 5 without blade fan, it is characterized in that: described air flue (25) by being positioned at jet-impingement device (2) below through hole and air passageways (14) UNICOM of pedestal (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101856330A CN102230482B (en) | 2011-07-04 | 2011-07-04 | Bladeless fan |
| CN201310074425.2A CN103206415B (en) | 2011-07-04 | 2011-07-04 | Airflow injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101856330A CN102230482B (en) | 2011-07-04 | 2011-07-04 | Bladeless fan |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310074425.2A Division CN103206415B (en) | 2011-07-04 | 2011-07-04 | Airflow injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102230482A CN102230482A (en) | 2011-11-02 |
| CN102230482B true CN102230482B (en) | 2013-04-17 |
Family
ID=44843079
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101856330A Expired - Fee Related CN102230482B (en) | 2011-07-04 | 2011-07-04 | Bladeless fan |
| CN201310074425.2A Expired - Fee Related CN103206415B (en) | 2011-07-04 | 2011-07-04 | Airflow injection device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310074425.2A Expired - Fee Related CN103206415B (en) | 2011-07-04 | 2011-07-04 | Airflow injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN102230482B (en) |
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| TWI548813B (en) * | 2012-03-13 | 2016-09-11 | Yi-Sheng Luo | A fanless fan with air cleaning function |
| GB201205699D0 (en) * | 2012-03-30 | 2012-05-16 | Dyson Technology Ltd | A hand held appliance |
| CN103573670B (en) * | 2012-07-23 | 2018-01-05 | 严能进 | A kind of bladeless fan of wall-attaching type installation |
| CN103775313A (en) * | 2012-10-24 | 2014-05-07 | 李耀强 | Bladeless fan with air incoming from outer side wall |
| CN103775315B (en) * | 2012-10-24 | 2016-08-31 | 李耀强 | Bladeless fan with hollow impellers |
| CN104358717B (en) * | 2014-11-07 | 2016-08-24 | 深圳市神州微动力科技有限公司 | A kind of air pressing type bladeless fan and airflow generating method thereof |
| CN204783838U (en) * | 2015-02-05 | 2015-11-18 | 张伟 | Nested formula air -out structure of wind -tunnel |
| WO2016128735A1 (en) | 2015-02-13 | 2016-08-18 | Dyson Technology Limited | A fan assembly |
| GB2535225B (en) | 2015-02-13 | 2017-12-20 | Dyson Technology Ltd | A fan |
| GB2535460B (en) | 2015-02-13 | 2017-11-29 | Dyson Technology Ltd | Fan assembly with removable nozzle and filter |
| GB2535224A (en) | 2015-02-13 | 2016-08-17 | Dyson Technology Ltd | A fan |
| GB2535462B (en) | 2015-02-13 | 2018-08-22 | Dyson Technology Ltd | A fan |
| GB2537584B (en) | 2015-02-13 | 2019-05-15 | Dyson Technology Ltd | Fan assembly comprising a nozzle releasably retained on a body |
| CN105465017A (en) * | 2015-12-30 | 2016-04-06 | 深圳市锐钜科技有限公司 | Blade-free ceiling fan |
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| CN108072109A (en) * | 2017-11-03 | 2018-05-25 | 青岛海尔空调器有限总公司 | Wall-hanging indoor unit of air conditioner |
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| CN108151136B (en) * | 2017-11-20 | 2020-04-24 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
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| CN108036405B (en) * | 2017-11-20 | 2020-04-24 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
| CN108151138B (en) * | 2017-11-20 | 2020-04-24 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
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| CN107965843B (en) * | 2017-11-20 | 2020-04-24 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
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| GB2452593A (en) * | 2007-09-04 | 2009-03-11 | Dyson Technology Ltd | A fan |
| GB2466058B (en) * | 2008-12-11 | 2010-12-22 | Dyson Technology Ltd | Fan nozzle with spacers |
| GB2468312A (en) * | 2009-03-04 | 2010-09-08 | Dyson Technology Ltd | Fan assembly |
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| CN202182069U (en) * | 2011-07-04 | 2012-04-04 | 李耀强 | Bladeless fan |
-
2011
- 2011-07-04 CN CN2011101856330A patent/CN102230482B/en not_active Expired - Fee Related
- 2011-07-04 CN CN201310074425.2A patent/CN103206415B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102230482A (en) | 2011-11-02 |
| CN103206415A (en) | 2013-07-17 |
| CN103206415B (en) | 2015-07-15 |
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