CN103206415B - Airflow injection device - Google Patents
Airflow injection device Download PDFInfo
- Publication number
- CN103206415B CN103206415B CN201310074425.2A CN201310074425A CN103206415B CN 103206415 B CN103206415 B CN 103206415B CN 201310074425 A CN201310074425 A CN 201310074425A CN 103206415 B CN103206415 B CN 103206415B
- Authority
- CN
- China
- Prior art keywords
- air
- injection device
- airflow injection
- flow path
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 53
- 239000007924 injection Substances 0.000 title claims abstract description 53
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 23
- 210000002435 tendon Anatomy 0.000 claims description 4
- 239000011796 hollow space material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007812 deficiency Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Jet Pumps And Other Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An airflow injection device is in a hollow annular structure. A bladeless fan is composed of a base and the airflow injection device which is disposed above the base. Air inlets are arranged on a casing of the base, the airflow injection device is in a hollow annular structure, a first airflow channel is arranged on the hollow portion, and an annular second airflow channel and an annular exhaust port are arranged on the airflow injection device. The bladeless fan is provided with the second airflow channel besides the first airflow channel, so that air at the back and on the side of the fan can be sucked effectively, the air volume blown by the fan is large, and the effect is apparent.
Description
Technical field
The present invention relates to a kind of for the airflow injection device without blade fan, belong to the optimisation technique without blade fan.
Background technique
Existing fan is by driven by motor blade rotary, by blade, air pressurized is accelerated then to blow to user, advantage brings the sensation of blowing, but there are following 4 deficiencies: one is that the velocity of blade that rotates is very high, encounter because of carelessness and can damage, although most fan adopts outer cover to surround blade to reduce danger; Two is that blade and outer cover are difficult to cleaning; Three is also can produce throat sound in blade rotary process, brings interference to user; Four is that the wind of producing by boasting is uneven because air-flow changes through during blade surface, and user can feel a burst of high wind that similar pulse is such.
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 sound, 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, make user experience comparatively stable airflow effects.Deficiency the air at suction fan rear to flow to user, but can not the air of suction fan side.
Therefore, need to find a kind of novel without blade fan, not only can the air at suction fan rear, can also the air of suction fan side, make the air flowing to user more.
Summary of the invention
The object of this invention is to provide a kind of airflow injection device, not only can the air at suction fan rear, can also the air flow user of suction fan side.
Technological scheme of the present invention is: a kind of airflow injection device 2, described airflow injection device 2 is the loop configuration of hollow, hollow space is the first air-flow path 21, airflow injection device 2 inside is provided with air flue 25, airflow injection device 2 is provided with the relief opening 23 of annular, described air flue 25 is communicated with relief opening 23, and airflow injection device 2 is provided with the second air-flow path 22 of annular; When main air flow at a high speed flows through the exhaust outlet of the second air-flow path 22, can venturi-effect be produced, the air-flow of fan side be entrainmented by the second air-flow path 22 and enters in the first air-flow path 21.
The intake grill of the second described air-flow path 22 is positioned at the outer wall of airflow injection device 2, and exhaust outlet is positioned at the inwall of airflow injection device 2.
The second described 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 being positioned at airflow injection device 2 inside, and being linked in sequence by outer wall 28, demarcation strip 24 and inwall 29 is formed.
One end of described outer wall 28 is connected with demarcation strip 24, and the other end bends to the direction of inwall 29 and wraps up the end of inwall 29; One end of described inwall 29 is connected with demarcation strip 24, and the other end curves inwardly, and it is water-drop-shaped that curved section thickeies end gradually; Gap is left in the end of described inwall 29 and the inner side of outer wall 28, forms the relief opening 23 be communicated with air flue 25.
Be provided with through hole below described airflow injection device, air flue 25 is communicated with without the air passageways 14 in the pedestal 1 of blade fan by described through hole.
Airflow injection device 2 is placed on the pedestal 1 without blade fan and uses, and the shell of described pedestal 1 is provided with suction port 11, pedestal 1 positioned inside motor 12, the impeller 13 driven by motor 12, air passageways 14.
Beneficial effect:
1, in airflow injection device except being provided with except common first air-flow path the same without blade fan, be also provided with the second air-flow path, can the air of suction fan fan and side effectively, the air quantity that fan is blown out is larger, more remarkable effect.
2, define Coanda surface around relief opening, guide air flow direction.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
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 of the present inventionly overlooks partial sectional view;
Fig. 5 is the partial enlarged drawing of Fig. 3;
Fig. 6 is the External view of one embodiment of the present of invention.
In figure 1, pedestal, 11, suction port, 12, motor, 13, impeller, 14, air flue, 2, airflow injection 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, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of airflow injection device 2, be placed on the pedestal without blade fan and use, described airflow injection device 2 is the loop configuration of hollow, hollow space is the first air-flow path 21, and airflow injection device 2 inside is provided with air flue 25, and airflow injection device 2 is provided with the relief opening 23 of annular, described air flue 25 is communicated with relief opening 23, and airflow injection device 2 is provided with the second air-flow path 22 of annular; When main air flow at a high speed flows through the exhaust outlet of the second air-flow path 22, can venturi-effect be produced, the air-flow of fan side be entrainmented by the second air-flow path 22 and enters in the first air-flow path 21.
Be made up of pedestal 1 and airflow injection device 2 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 driven rotary, air passageways 14.Impeller 13 is placed in the shell of pedestal 1, helps to suck air and to supercharging air, then air is blown into airflow injection device 2.The loop configuration of airflow injection device 2 in hollow also can be square or oval, as shown in Figure 6, as long as axisymmetrical.
The intake grill of the second described air-flow path 22 is positioned at the outer wall of airflow injection device 2, and exhaust outlet is positioned at the inwall of airflow injection device 2.Make the air outside airflow injection device 2 outer wall, can the second air-flow path 22 be passed through, import in the first air-flow path 21.
The second described 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 being positioned at airflow injection device 2 inside, and being linked in sequence by outer wall 28, demarcation strip 24 and inwall 29 is formed.Therefore, when taking 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 bends to the direction of inwall 29 and wraps up the end of inwall 29.One end of described inwall 29 is connected with demarcation strip 24, the other end curves inwardly, it is water-drop-shaped that curved section thickeies end gradually, that is, the end of outer wall 29 is that circular arc bends towards the side of air flue 25 to the direction of outer wall 28, enable the high-pressure air in air flue 25 along the inner side camber line of inwall 29, flow out swimmingly, spray through relief opening 23.
Gap is left in the end of described inwall 29 and the inner side of outer wall 28, forms the relief opening 23 of the annular be communicated with air flue 25.
Described air flue 25 is by being positioned at air passageways 14 UNICOM of through hole below airflow injection device 2 and pedestal 1.
The air-flow that the present invention blows to user comprises three parts, and first portion is the main air flow sprayed from ring jet mouth 23; When second portion is main air flow flowing, the air-flow at fan rear is attracted to enter the first air-flow path 21; Part III is that main air flow is when at a high speed flowing through the exhaust outlet of the second air-flow path 22, venturi-effect can be produced, the air-flow of fan side is entrainmented by the second air-flow path 22 to be entered in the first air-flow path 21, and above-mentioned three strands of air-flows are merged into one more powerful air-flow.
During work, motor 12 impeller 12 in pedestal 1 rotates, and is sucked by the air of outside from suction port, enters air passageways 14, then enter air flue 25 by the through hole be located at below airflow injection device 2 after pressurization, finally spouting from annular row gas port 23.Because inwall 29 one end towards annular row gas port 23 curves inwardly, curved section more thickeies in water-drop-shaped, makes towards the side of air flue that the lines flow smoothly, and like this, the air-flow in air flue 25 will flow toward annular row gas port 23 swimmingly, sprays from annular row gas port 23.Because inwall 29 curves inwardly, therefore, the surface of the inwall 29 around annular row gas port 23 forms Coanda surface, the air-flow that relief opening 23 is sprayed changes the flow direction, surface along inwall 29 blows to user, and entrainment the air being positioned at airflow injection device 2 rear and blow to user by the first air-flow path 21, simultaneously, exhaust outlet due to the second air-flow path 22 is positioned at the inwall of airflow injection device 2, when the air-flow ejected from annular row gas port flows through this position, according to venturi-effect, low pressure area can be produced at the exhaust outlet of the second air-flow path 22, the air outside airflow injection device 2 outer wall is attracted to flow into the second air-flow path 22, import the first air-flow path 21 again and blow to user.
Therefore, of the present invention without blade fan, to entrainment the air-flow that enters the first air-flow path 21 be 200810177843.3 than application number with application number for a kind of fan disclosed in the patent document of 200810177844.8 is large, 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 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 (7)
1. an airflow injection device (2), the loop configuration that described airflow injection device (2) is hollow, hollow space is the first air-flow path (21), airflow injection device (2) inside is provided with air flue (25), airflow injection 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) being provided with annular in airflow injection device (2); When main air flow at a high speed flows through the exhaust outlet of the second air-flow path (22), can venturi-effect be produced, the air-flow of fan side be entrainmented by the second air-flow path (22) and enters in the first air-flow path (21).
2. airflow injection device according to claim 1, it is characterized in that: the intake grill of described the second air-flow path (22) is positioned at the outer wall of airflow injection device (2), and exhaust outlet is positioned at the inwall of airflow injection device (2).
3. airflow injection device according to claim 2, it is characterized in that: described the second air-flow path (22) is separated by demarcation strip (24) and air flue (25), described demarcation strip (24) is connected by the puff prot (27) of connecting tendon (26) with annular.
4. airflow injection device according to claim 3, it is characterized in that: described air flue (25) is positioned at the inner air-flow path of airflow injection device (2), is linked in sequence formed by outer wall (28), demarcation strip (24) and inwall (29).
5. airflow injection device according to claim 4, it is characterized in that: one end of described outer wall (28) is connected with demarcation strip (24), the other end bends to the direction of inwall (29) and wraps up the end of inwall (29); One end of described inwall (29) is connected with demarcation strip (24), and the other end curves inwardly, and it is water-drop-shaped that curved section thickeies end gradually; Gap is left in the end of described inwall (29) and the inner side of outer wall (28), forms the relief opening (23) be communicated with air flue (25).
6. the airflow injection device according to any one of Claims 1 to 5, it is characterized in that: be provided with through hole below described airflow injection device, air flue (25) is communicated with without the air passageways (14) in the pedestal (1) of blade fan by described through hole.
7. the airflow injection device according to any one of Claims 1 to 5, it is characterized in that: airflow injection device (2) is placed in the upper use of pedestal (1) without blade fan, the shell of described pedestal (1) is provided with suction port (11), pedestal (1) positioned inside motor (12), the impeller (13) driven by motor (12), air passageways (14).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101856330A CN102230482B (en) | 2011-07-04 | 2011-07-04 | Bladeless fan |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101856330A Division CN102230482B (en) | 2011-07-04 | 2011-07-04 | Bladeless fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103206415A CN103206415A (en) | 2013-07-17 |
| CN103206415B true CN103206415B (en) | 2015-07-15 |
Family
ID=44843079
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310074425.2A Expired - Fee Related CN103206415B (en) | 2011-07-04 | 2011-07-04 | Airflow injection device |
| CN2011101856330A Expired - Fee Related CN102230482B (en) | 2011-07-04 | 2011-07-04 | Bladeless fan |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101856330A Expired - Fee Related CN102230482B (en) | 2011-07-04 | 2011-07-04 | Bladeless fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103206415B (en) |
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| CN107940552B (en) * | 2017-11-03 | 2024-02-23 | 青岛海尔空调器有限总公司 | Indoor unit of wall-mounted air conditioner |
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| CN108151137B (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 |
| 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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| DE1291090B (en) * | 1963-01-23 | 1969-03-20 | Schmidt Geb Halm Anneliese | Device for generating an air flow |
| WO2009030879A1 (en) * | 2007-09-04 | 2009-03-12 | Dyson Technology Limited | A fan |
| CN101749289A (en) * | 2008-12-11 | 2010-06-23 | 戴森技术有限公司 | Fan |
| GB2468313A (en) * | 2009-03-04 | 2010-09-08 | Dyson Technology Ltd | Fan assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102230482B (en) | 2013-04-17 |
| CN102230482A (en) | 2011-11-02 |
| CN103206415A (en) | 2013-07-17 |
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Inventor after: Li Yaoqiang Inventor after: Kuang Jinxiu Inventor after: Deng Wenxiao Inventor after: Liu Zhiqiang Inventor after: Zhao Juan Inventor after: Ai Dongyun Inventor after: Chen Dongfu Inventor before: Li Yaoqiang |
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Free format text: CORRECT: INVENTOR; FROM: LI YAOQIANG TO: LI YAOQIANG KUANG JINXIU DENG WENXIAO LIU ZHIQIANG ZHAO JUAN AI DONGYUN CHEN DONGFU |
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Effective date of registration: 20170901 Address after: 225200 Jiangsu city in Yangzhou Province town of Jiangdu District Zhenwu Friendship Road No. 18 Patentee after: YANGZHOU SHIDA PLASTIC INDUSTRY CO., LTD. Address before: P.O. Box No. 35 A007 District Fuhua road 528401 Guangdong city of Zhongshan Province Patentee before: Li Yaoqiang |
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