CN202833051U - Bladeless fan with inlet air through outer side wall - Google Patents
Bladeless fan with inlet air through outer side wall Download PDFInfo
- Publication number
- CN202833051U CN202833051U CN2012205444927U CN201220544492U CN202833051U CN 202833051 U CN202833051 U CN 202833051U CN 2012205444927 U CN2012205444927 U CN 2012205444927U CN 201220544492 U CN201220544492 U CN 201220544492U CN 202833051 U CN202833051 U CN 202833051U
- Authority
- CN
- China
- Prior art keywords
- jet
- impingement device
- side wall
- outer side
- blade fan
- 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
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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
-
- 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)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A bladeless fan with inlet air through an outer side wall is mainly composed of a foundation support and an annular airflow injection device located above the foundation support. An impeller is arranged inside the airflow injection device, an air inlet is arranged in the outer wall of the airflow injection device, and a jet exhaust port is arranged in an inner side wall of the airflow injection device. The distance between the air inlet and air outlet is shortened, energy consumption can be reduced, and noise is lower.
Description
Technical field
The utility model relate to a kind of outer side wall air intake without blade 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 noise 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 noise, 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.Because suction fan is arranged in the pedestal, suction port is arranged on the base wall, blower fan will and be sent into the annular row gas port that is positioned at the pedestal top the air intake pressurization, cause the lift of supplying gas long, also higher to the requirement of supercharging air, thus the rotating speed of blower fan is had relatively high expectations, in addition, because the intakeport concentrated setting is on base wall, air velocity is larger, and the noise that causes gas current friction to produce is also larger.
Therefore, need to seek a kind of induction noise little, the lift of supplying gas is short, power lower without blade fan.
Summary of the invention
It is little that the purpose of this utility model provides a kind of induction noise, and the lift of supplying gas is short, power lower without blade fan.
The technical solution of the utility model is: a kind of outer side wall air intake without blade fan, mainly formed by pedestal 1 and the annular airflow injection apparatus 2 that is positioned at pedestal 1 top, be provided with power plant 5 in the pedestal, outer side wall at jet-impingement device 2 is provided with suction port 21, is provided with ring jet mouth 22 at the madial wall of jet-impingement device; Hollow positioned inside air-flow supercharging device at jet-impingement device 2; Be provided with demarcation strip between pedestal and the jet-impingement device, be provided with the hole at demarcation strip; The drive wheel 51 of described power plant 5 enters in the jet-impingement device and with the air-flow supercharging device by the hole and links to each other; Described drive wheel 51 band moving air flow supercharging device work.
Described air-flow supercharging device is selected impeller 3, and described impeller 3 is comprised of transmission ring 31 and blade 32.
Hollow wall at jet-impingement device 2 is provided with 2 above positioning bearings 4, and the part that drive wheel 51 enters the jet-impingement device and positioning bearing 4 are in jet-impingement device 2 inwall symmetric arrays.
The transmission ring 31 of impeller 3 is provided with the driving groove coaxial with transmission ring.
Driving groove and drive wheel enter the part of jet-impingement device and the surface formation of positioning bearing closely cooperates, and impeller 3 is limited between drive wheel and the positioning bearing.
The surface of transmission ring 31, drive wheel 51 and positioning bearing 4 is provided with tooth or rubbing surface.
Described suction port is on the jet-impingement device wall between the outlet side of driving groove and jet-impingement device.
Described suction port is provided with the connecting tendon of the wall of the jet-impingement device that connects the suction port two ends.
Described puff prot is positioned on the wall away from the jet-impingement device of suction port.
Beneficial effect:
1, be provided with impeller in jet-impingement device inside, at its outer side wall suction port be set, sidewall arranges puff prot within it, shortened air inlet and give vent to anger between distance, can reduce energy consumption, and noise is less.
Description of drawings
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is that sectional view is looked on a left side of the present utility model;
Fig. 3 is schematic appearance of the present utility model;
Fig. 4 is the partial enlarged drawing of Fig. 2;
Fig. 5 is the partial enlarged drawing of Fig. 2.
Embodiment
Arrive shown in Figure 5 such as Fig. 1, a kind of outer side wall air intake without blade fan, mainly formed by pedestal 1 and the annular airflow injection apparatus 2 that is positioned at pedestal 1 top, be provided with power plant 5 in the pedestal, outer side wall at jet-impingement device 2 is provided with suction port 21, is provided with ring jet mouth 22 at the madial wall of jet-impingement device; Hollow positioned inside air-flow supercharging device at jet-impingement device 2; Be provided with demarcation strip between pedestal and the jet-impingement device, be provided with the hole at demarcation strip; The drive wheel 51 of described power plant 5 enters in the jet-impingement device and with the air-flow supercharging device by the hole and links to each other; Described drive wheel 51 band moving air flow supercharging device work.
Power plant being placed in the pedestal without blade fan of outer side wall air intake of the present utility model, but the drive wheel 51 of power plant 5 enters in the jet-impingement device and links to each other with the air-flow supercharging device., also be annular on the whole.Concrete arranging, suction port both can be the annular of circling gas flow injection apparatus one circle, also can be comprised of a plurality of inlet holes that the centre is provided with the circling gas flow injection apparatus setting of connecting tendon.Suction port and puff prot all are to take in the axle center of jet-impingement device as the loop configuration of axle.
Described air-flow supercharging device is selected impeller 3, and described impeller 3 is comprised of transmission ring 31 and blade 32.Hollow wall at jet-impingement device 2 is provided with 2 above positioning bearings 4, and positioning bearing mainly is to play impeller support, spacing, and the effect that reduces kinetic friction resistance and noise.
The part that drive wheel 51 enters the jet-impingement device and positioning bearing 4 are in jet-impingement device 2 inwall symmetric arrays.The transmission ring 31 of impeller 3 is provided with the driving groove coaxial with transmission ring.Driving groove and drive wheel enter the part of jet-impingement device and the surface formation of positioning bearing closely cooperates, impeller 3 is limited between drive wheel and the positioning bearing, make impeller be limited at the hollow space of jet-impingement device, can not collide with the inwall of jet-impingement device, and it is smooth and easy to turn round.
The drive wheel impeller is rotated, air from suction port inhaling air flow jet device 2 inside, through spraying from puff prot after the pressurization, is utilized the coanda surface of puff prot, jet-impingement device 2 ambient airs are entrainmented, thereby drive the more Air blowing of periphery.
The surface of transmission ring 31, drive wheel 51 and positioning bearing 4 is provided with tooth or rubbing surface.These teeth are parallel to each other, and are engaged in running.
Described suction port is on the jet-impingement device wall between the outlet side of driving groove and jet-impingement device.
Described suction port is provided with the connecting tendon of the wall of the jet-impingement device that connects the suction port two ends.
Along the suction port edge of jet-impingement device one circle protection filter screen is set, described protection filter screen covers suction port, to prevent from accidentally will pointing or foreign matter enters suction port.
Described puff prot is positioned at the madial wall of jet-impingement device and is positioned on the wall away from suction port, the wall of contiguous puff prot is arc, when air-flow gushes out from puff prot, according to the coanda principle, ambient air can be entrainmented and blow out, make the air-flow that blows out larger.
Because impeller directly is placed in the jet-impingement device, suction port and puff prot all are placed on the jet-impingement device, the distance of suction port and puff prot is significantly dwindled, and the area of suction port is larger, therefore, outer side wall air intake of the present utility model without blade fan under comparable size, power, can produce more powerful air-flow without blade fan than other, namely the larger effect of wind is better, and noise is less.
Above-described embodiment only is interpretation purposes of the present utility model; and be not to be to restriction of the present utility model, those skilled in the art are in essential scope of the present utility model; make a variety of changes or substitute, also should belong to protection category of the present utility model.
Claims (9)
1. an outer side wall air intake without blade fan, mainly formed by pedestal (1) and the annular airflow injection apparatus (2) that is positioned at pedestal (1) top, be provided with power plant (5) in the pedestal, it is characterized in that: the outer side wall at jet-impingement device (2) is provided with suction port (21), is provided with ring jet mouth (22) at the madial wall of jet-impingement device; Hollow positioned inside air-flow supercharging device at jet-impingement device (2); Be provided with demarcation strip between pedestal and the jet-impingement device, be provided with the hole at demarcation strip; The drive wheel (51) of described power plant (5) enters in the jet-impingement device and with the air-flow supercharging device by the hole and links to each other; The work of described drive wheel (51) band moving air flow supercharging device.
Outer side wall air intake according to claim 1 without blade fan, it is characterized in that: described air-flow supercharging device is selected impeller (3), described impeller (3) is comprised of transmission ring (31) and blade (32).
According to claim 1 with hollow impellers without blade fan, it is characterized in that: the hollow wall at jet-impingement device (2) is provided with (2) individual above positioning bearings (4), and the part that drive wheel (51) enters the jet-impingement device and positioning bearing (4) are in jet-impingement device (2) inwall symmetric arrays.
Outer side wall air intake according to claim 2 without blade fan, it is characterized in that: the transmission ring (31) of impeller (3) is provided with the driving groove coaxial with transmission ring.
According to claim 3 or 4 described outer side wall air intakes without blade fan, it is characterized in that: driving groove and drive wheel enter the part of jet-impingement device and the surface formation of positioning bearing closely cooperates, and impeller (3) is limited between drive wheel and the positioning bearing.
Outer side wall air intake according to claim 5 without blade fan, it is characterized in that: the surface at described driving groove, drive wheel (51) and positioning bearing (4) is provided with tooth or rubbing surface.
Outer side wall air intake according to claim 1 without blade fan, it is characterized in that: described suction port is on the jet-impingement device wall between the outlet side of driving groove and jet-impingement device.
Outer side wall air intake according to claim 1 without blade fan, it is characterized in that: described suction port is provided with the connecting tendon of the wall of the jet-impingement device that connects the suction port two ends.
According to outer side wall air intake claimed in claim 1 without blade fan, it is characterized in that: described puff prot is positioned on the wall away from the jet-impingement device of suction port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205444927U CN202833051U (en) | 2012-10-24 | 2012-10-24 | Bladeless fan with inlet air through outer side wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205444927U CN202833051U (en) | 2012-10-24 | 2012-10-24 | Bladeless fan with inlet air through outer side wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833051U true CN202833051U (en) | 2013-03-27 |
Family
ID=47944772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205444927U Expired - Fee Related CN202833051U (en) | 2012-10-24 | 2012-10-24 | Bladeless fan with inlet air through outer side wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775313A (en) * | 2012-10-24 | 2014-05-07 | 李耀强 | Bladeless fan with air incoming from outer side wall |
-
2012
- 2012-10-24 CN CN2012205444927U patent/CN202833051U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775313A (en) * | 2012-10-24 | 2014-05-07 | 李耀强 | Bladeless fan with air incoming from outer side wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20151024 |
|
| EXPY | Termination of patent right or utility model |