CN203463361U - Meridian fan - Google Patents
Meridian fan Download PDFInfo
- Publication number
- CN203463361U CN203463361U CN201320430287.2U CN201320430287U CN203463361U CN 203463361 U CN203463361 U CN 203463361U CN 201320430287 U CN201320430287 U CN 201320430287U CN 203463361 U CN203463361 U CN 203463361U
- Authority
- CN
- China
- Prior art keywords
- impeller
- motor
- reel
- cylinder
- blower 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
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a meridian fan including a housing, a motor and an impeller. The motor and the impeller are disposed in the housing. The impeller is connected to a motor shaft of the motor. An air inlet is arranged in a side of the housing adjacent to the motor. An outlet is arranged in a side of the housing adjacent to the impeller. The impeller is composed of a reel, a reel fixing board connected to the reel, a hub fixed on the reel fixing board and blades distributed on the hub. The meridian fan also includes a conical barrel shell welded on the outer periphery of the blades. The conical barrel cylinder extends from an inner end face of the impeller to an outer end face of the impeller with the diameter decreasing gradually. The meridian fan provided by the utility model has advantage of being high in air outlet efficiency and air outlet pressure and low in working noise.
Description
Technical field
The utility model belongs to blower fan technical field, relates to axial-flow blower, relates in particular to the meridian formula blower fan in axial-flow blower.
Background technique
Meridian formula blower fan is a kind of axial-flow blower, and it is large that this kind of axial-flow blower has air quantity, the advantage that pressure is high.Existing blower fan mainly by casing, be located at impeller in casing and the motor of drives impeller forms, a side of casing is intake grill, opposite side is exhaust outlet.
Research discovery, the blade surrounding of impeller, owing to opening wide, makes a part of wind because centrifugal action flows out from the gap between impeller and casing, can not from exhaust outlet, discharge completely, and the efficiency of air-out and pressure are all decreased.
In addition, for the needs of environment evaluation and test, ventilation system is more and more higher to the requirement of reduction operational noise, but the control effect of current meridian formula aspect noise is poor.
Model utility content
For this reason, technical problem to be solved in the utility model is to provide a kind of meridian formula blower fan that can further improve blower fan air-out efficiency and go out wind pressure, the deficiency existing to overcome prior art.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of meridian formula blower fan, comprise casing, motor and impeller, described motor and impeller are positioned at described casing, described impeller is connected on the motor shaft of described motor, it is intake grill that described casing is positioned at motor side, being positioned at impeller side is exhaust outlet, described impeller by reel, be connected to reel fixed plate on reel, be fixed on the wheel hub on reel fixed plate and the blade that is distributed on wheel hub forms; It is characterized in that: also comprise the outer peripheral taper barrel shell that is welded on described blade, described taper barrel shell from inside to outside bore extends to the exterior edge face of impeller from large to small from the interior edge face of impeller.
In further improving, the outward edge of described taper barrel shell has the loudspeaker targeting port expanding outwardly.Such structure, makes from exhaust outlet, to discharge enough smoothly from taper barrel shell wind energy out.
Because the outward edge at blade is welded with taper barrel shell, the wind producing is unlikely to because centrifugal action flows out from the gap between blade and casing, and taper barrel shell also has guiding to wind and converge effect, thereby improved air-out efficiency and gone out wind pressure.
In addition, in order to realize noise reduction object, described exhaust outlet is connected with sound-absorbing cylinder, described sound-absorbing cylinder consists of outer cylinder and abducent inside trumpet cylinder, between described outer cylinder and inside trumpet cylinder, form interlayer, in described interlayer, be provided with and be filled with sound absorbing material, on described inside trumpet cylinder, be distributed with aperture.
Described sound absorbing material is acoustical cotton.
The bottom of described casing is provided with fixed support, and the top of described casing has suspension ring.
By connect sound-absorbing cylinder in outlet sealing, the sound absorbing material in sound-absorbing cylinder can adsorb noise, thereby plays the object of noise decrease decibel.
Therefore, meridian formula blower fan of the present utility model has advantages of air-out efficiency and goes out that wind pressure is high and operational noise is little.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and concrete enforcement, the utility model is elaborated:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of impeller;
Fig. 3 is the side view of Fig. 2.
In figure:
100-casing, 101-fixed support, 102-suspension ring, 200-motor, 300-impeller, 301-reel, 302-reel fixed plate, 303-wheel hub, 304-blade, 305-taper barrel shell, 306-loudspeaker targeting port, 400-sound-absorbing cylinder, 401-outer cylinder, 402-inside trumpet cylinder, 403-sound absorbing material.
Embodiment
As shown in Figure 1, low noise axial fan of the present utility model, comprises casing 100, motor 200, impeller 300 and sound-absorbing cylinder 400.
Wherein, casing 100 bottoms have fixed support 101, top to have suspension ring 102.Such structure facilitates the fixing handling of blower fan.
Shown in Fig. 2 and Fig. 3, impeller 300 by reel 301, be connected to reel fixed plate 302 on reel 301, be fixed on the wheel hub 303 on reel fixed plate 302, and the blade 304 being distributed on wheel hub 303 forms, also comprise the outer peripheral taper barrel shell 305 that is welded on blade 304, taper barrel shell 305 from inside to outside bore extends to the exterior edge face of impeller from large to small from the interior edge face of impeller.
And the outward edge of taper barrel shell 305 has the loudspeaker targeting port 306 expanding outwardly.Such structure, makes from exhaust outlet, to discharge enough smoothly from taper barrel shell wind energy out.
Because the outward edge at blade is welded with taper barrel shell, the wind producing is unlikely to because centrifugal action flows out from the gap between blade and casing, and taper barrel shell also has guiding to wind and converge effect, thereby improved air-out efficiency and gone out wind pressure.
Again as shown in Figure 1, sound-absorbing cylinder 400 consists of outer cylinder 401 and abducent inside trumpet cylinder 402, between outer cylinder 401 and inside trumpet cylinder 402, forms interlayer, is provided with and is filled with sound absorbing material 403 in interlayer.Sound absorbing material 403 is acoustical cotton, on inside trumpet cylinder 402, is distributed with aperture.During work, the noise that blower fan produces goes out exhaust outlet out with distinguished and admirable, and the aperture that wherein noise passes through on inside trumpet cylinder 402 is adsorbed by the sound absorbing material 403 in interlayer, thereby has played the low noise effect of falling.
Therefore, from foregoing detailed description, can find out, this meridian formula blower fan of the present utility model has advantages of air-out efficiency and goes out that wind pressure is high and operational noise is little.
Claims (5)
1. a meridian formula blower fan, comprise casing, motor and impeller, described motor and impeller are positioned at described casing, described impeller is connected on the motor shaft of described motor, it is intake grill that described casing is positioned at motor side, being positioned at impeller side is exhaust outlet, described impeller by reel, be connected to reel fixed plate on reel, be fixed on the wheel hub on reel fixed plate and the blade that is distributed on wheel hub forms; It is characterized in that: also comprise the outer peripheral taper barrel shell that is welded on described blade, described taper barrel shell from inside to outside bore extends to the exterior edge face of impeller from large to small from the interior edge face of impeller.
2. meridian formula blower fan according to claim 1, is characterized in that: the outward edge of described taper barrel shell has the loudspeaker targeting port expanding outwardly.
3. meridian formula blower fan according to claim 1 and 2, it is characterized in that: described exhaust outlet is connected with sound-absorbing cylinder, described sound-absorbing cylinder consists of outer cylinder and abducent inside trumpet cylinder, between described outer cylinder and inside trumpet cylinder, form interlayer, in described interlayer, be provided with and be filled with sound absorbing material, on described inside trumpet cylinder, be distributed with aperture.
4. meridian formula blower fan according to claim 3, is characterized in that: described sound absorbing material is acoustical cotton.
5. meridian formula blower fan according to claim 1, is characterized in that: the bottom of described casing is provided with fixed support, and the top of described casing has suspension ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320430287.2U CN203463361U (en) | 2013-07-18 | 2013-07-18 | Meridian fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320430287.2U CN203463361U (en) | 2013-07-18 | 2013-07-18 | Meridian fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463361U true CN203463361U (en) | 2014-03-05 |
Family
ID=50175728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320430287.2U Expired - Fee Related CN203463361U (en) | 2013-07-18 | 2013-07-18 | Meridian fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013494A (en) * | 2017-05-11 | 2017-08-04 | 南通升科节能技术有限公司 | Noise-lowering centrifugal blower fan |
-
2013
- 2013-07-18 CN CN201320430287.2U patent/CN203463361U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013494A (en) * | 2017-05-11 | 2017-08-04 | 南通升科节能技术有限公司 | Noise-lowering centrifugal blower fan |
| CN107013494B (en) * | 2017-05-11 | 2023-12-26 | 江苏升科节能技术有限公司 | Noise-reducing centrifugal fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203642431U (en) | Cabinet volute and cabinet air conditioner | |
| CN102828977B (en) | Energy-saving fan | |
| CN104963899A (en) | Silencer of draught fan | |
| CN202118009U (en) | Axial flow fan system of air conditioner outdoor unit | |
| CN201443527U (en) | Energy-saving silencing centrifugal fan | |
| CN203584898U (en) | Low-noise high-efficiency central air conditioner outdoor machine cooling axial-flow fan | |
| CN203463361U (en) | Meridian fan | |
| CN101586572A (en) | Energy-saving muffling centrifugal fan | |
| CN205956027U (en) | High -efficient low noise axial -flow blower | |
| CN208057463U (en) | Meridian accelerating axial fans | |
| CN103629156B (en) | A kind of central air conditioner outdoor unit but axial-flow blower of low-noise high-efficiency | |
| CN201386671Y (en) | Axial flow type inducing fan | |
| CN201772592U (en) | Flow guide device for outdoor unit of air conditioner | |
| CN102090863A (en) | De-noising structure of dust collector motor | |
| CN215719643U (en) | High-efficient low noise mixed flow fan | |
| CN106152217A (en) | A kind of noise reduction range hood | |
| CN201805298U (en) | Cooling fan for variable frequency motor | |
| CN207906165U (en) | A kind of quick release large fan denoising device | |
| CN203161589U (en) | Centrifugal axial flow fan | |
| CN207814044U (en) | A kind of coiler fan | |
| CN209212622U (en) | A kind of circumference gradual change double Shell propeller fan | |
| CN202737668U (en) | Wind scooper of high-voltage motor | |
| CN109488640B (en) | Cooling air outlet structure of rotor in magnetic suspension blower | |
| CN203516111U (en) | Noise insulation enclosure for roots blower | |
| CN202937514U (en) | ZKDG series resistance-enlarging multi-cavity resonance type ventilation fan silencer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20210718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |