CN214945081U - Ultralow-noise high-efficiency axial flow fan - Google Patents
Ultralow-noise high-efficiency axial flow fan Download PDFInfo
- Publication number
- CN214945081U CN214945081U CN202120854254.5U CN202120854254U CN214945081U CN 214945081 U CN214945081 U CN 214945081U CN 202120854254 U CN202120854254 U CN 202120854254U CN 214945081 U CN214945081 U CN 214945081U
- Authority
- CN
- China
- Prior art keywords
- wind
- motor
- guiding
- panel
- flow 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.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a high-efficient axial fan of ultralow noise, including screen panel, wind-guiding circle, motor, impeller, wind-guiding panel, import radome fairing and motor support, the import radome fairing is fixed on the wind-guiding panel, and the impeller is connected with the motor, contains a plurality of blades on the impeller, and wind-guiding circle one end is fixed on the wind-guiding panel, and the other end links to each other with the motor, and motor support one end is fixed with the wind-guiding panel, and the other end links to each other with the motor, the screen panel fix on the wind-guiding panel, set up hexagon honeycomb mesh structure on the import radome fairing, the blade trailing edge has the cockscomb structure opening, and blade leading edge position is provided with the chamfer. The utility model discloses a high-efficient axial fan of ultralow noise can obviously reduce the noise of ventilation blower, improves ventilation blower performance and efficiency, need not just can realize falling the effect of making an uproar through increasing noise insulation, the structural design of integration, manufacturing cost is lower, and application scope is wide, and the installation is maintained portably.
Description
Technical Field
The utility model relates to a ventilation blower technical field especially relates to a high-efficient axial fan of ultralow noise.
Background
The high and low and noise size of fan efficiency is the important index of the quality of inspection fan, the high-speed rotation of fan can produce great noise, the air current that passes through is big more, the noise is also big more, and the power of motor is directly proportional with the air current size that flows through the fan in the fan, consequently the measure of making an uproar that generally adopts in the trade all is through reducing the rotational speed of fan, reduce the air flow and realize, still use the measure of making an uproar that generally falls to set up special syllable-dividing facility outside the fan, not only increase the manufacturing cost of fan, flow efficiency also can receive great influence.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model designs a high-efficient axial fan of ultralow noise.
The utility model adopts the following technical scheme:
the utility model provides a high-efficient axial fan of ultralow noise, includes screen panel, wind-guiding circle, motor, impeller, wind-guiding panel, import radome fairing and motor support, and the import radome fairing is fixed on the wind-guiding panel, and the impeller is connected with the motor, contains a plurality of blades on the impeller, and wind-guiding circle one end is fixed on the wind-guiding panel, and the other end links to each other with the motor, and motor support one end is fixed with the wind-guiding panel, and the other end links to each other with the motor, the screen panel fix on the wind-guiding panel, set up hexagon honeycomb mesh structure on the import radome fairing, the blade trailing edge has the cockscomb structure opening, and blade leading edge position is provided with the chamfer. The hexagonal honeycomb mesh structure on the inlet fairing can reduce the vortex generated at the inlet of the fan and further reduce the running noise of the fan. The sawtooth-shaped opening at the tail edge of the blade can effectively reduce the eddy current loss at the outlet of the blade, improve the air flowing performance of the impeller and reduce the rotating noise. The chamfer of blade leading edge position can reduce the windage, promotes wind wheel efficiency.
Preferably, the air guide panel comprises an inlet guide section, a straight cylinder section and a diffusion section, wherein a diffusion angle alpha is arranged on the diffusion section, the diameter of the inner wall of the inlet guide section is gradually reduced from the air inlet along the axial direction, the diameter of the inner wall of the straight cylinder section is equal, and the diameter of the inner wall of the diffusion section is gradually increased from the air outlet of the straight cylinder section along the axial direction. The diffuser section can reduce the flow velocity of the air flow and reduce the noise generated when the air flow impacts the guide vane and the mesh enclosure.
Preferably, the magnitude of the diffusion angle α is 5 to 40 degrees.
Preferably, the inlet fairing is a plastic or metal mesh enclosure.
Preferably, the length L of the chamfer arranged at the position of the front edge of the blade is between 2 and 10mm, and the radius R is between 0.5 and 1.5 mm.
Preferably, a plurality of guide vanes which are uniformly distributed along the axial direction are arranged on the air guide ring. The kinetic energy generated by the air flow can be effectively recovered to increase the static pressure and the efficiency of the axial flow fan.
Preferably, the number of the motor supports is between 3 and 8.
The utility model has the advantages that: the utility model discloses a high-efficient axial fan of ultralow noise can obviously reduce the noise of ventilation blower, improves ventilation blower performance and efficiency, need not just can realize falling the effect of making an uproar through increasing noise insulation, the structural design of integration, manufacturing cost is lower, and application scope is wide, and the installation is maintained portably.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a blade according to the present invention;
FIG. 3 is a cross-sectional view of the blade at location A-A of the leading edge of FIG. 2;
in the figure: the wind guide device comprises a net cover 1, a wind guide ring 2, a motor 3, an impeller 4, a wind guide panel 5, an inlet fairing 6, a motor support 7, a blade tail edge 4.1, a blade front edge 4.2, an inlet guide section 5.1, a straight cylinder section 5.2 and a diffusion section 5.3.
Detailed Description
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
example (b): as shown in the attached drawings 1 and 2, the ultralow-noise high-efficiency axial flow fan comprises a mesh enclosure 1, a wind guide ring 2, a motor 3, an impeller 4, a wind guide panel 5, an inlet fairing 6 and a motor support 7, wherein the inlet fairing is fixed on the wind guide panel, the impeller is connected with the motor, the impeller is provided with a plurality of blades, one end of the wind guide ring is fixed on the wind guide panel, the other end of the wind guide ring is connected with the motor, one end of the motor support is fixed with the wind guide panel, the other end of the motor support is connected with the motor, the mesh enclosure is fixed on the wind guide panel, the inlet fairing is provided with a hexagonal honeycomb mesh structure, the tail edge 4.1 of each blade is provided with a sawtooth-shaped opening, and the front edge 4.2 of each blade is provided with a chamfer.
The air guide panel comprises an inlet flow guide section 5.1, a straight cylinder section 5.2 and a diffusion section 5.3, wherein a diffusion angle alpha is arranged on the diffusion section, the diameter of the inner wall of the inlet flow guide section is gradually reduced from the air inlet along the axial direction, the diameter of the inner wall of the straight cylinder section is equal, and the diameter of the inner wall of the diffusion section is increased from the air outlet of the straight cylinder section along the axial direction. The diffusion angle alpha is 5-40 degrees.
The inlet fairing adopts a plastic or metal net cover. The air guide ring is provided with a plurality of guide vanes which are uniformly distributed along the axial direction. The number of the motor supports is 3-8.
As shown in FIG. 3, the length L of the chamfer arranged at the position of the front edge of the blade is between 2 and 10mm, and the radius R is between 0.5 and 1.5 mm.
The utility model discloses the vortex that the import of fan produced and then reduce fan noise of operation can be reduced to hexagon honeycomb mesh structure on the import radome fairing. The sawtooth-shaped opening at the tail edge of the blade can effectively reduce the eddy current loss at the outlet of the blade, improve the air flowing performance of the impeller and reduce the rotating noise. The chamfer of blade leading edge position can reduce the windage, promotes wind wheel efficiency. The diffuser section can reduce the flow velocity of the air flow and reduce the noise generated when the air flow impacts the guide vane and the mesh enclosure. The guide vanes on the air guide ring can effectively recover kinetic energy generated by airflow to increase the static pressure and efficiency of the axial flow fan.
Make the utility model discloses a high-efficient axial fan of ultralow noise can obviously reduce the noise of ventilation blower, improves ventilation blower performance and efficiency, need not just can realize falling the effect of making an uproar through increasing noise insulation, the structural design of integration, manufacturing cost is lower, and application scope is wide, and the installation is maintained portably.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.
Claims (7)
1. The utility model provides a high-efficient axial fan of ultralow noise, includes screen panel, wind-guiding circle, motor, impeller, wind-guiding panel, import radome fairing and motor support, and the import radome fairing is fixed on the wind-guiding panel, and the impeller is connected with the motor, contains a plurality of blades on the impeller, and wind-guiding circle one end is fixed on the wind-guiding panel, and the other end links to each other with the motor, and motor support one end is fixed with the wind-guiding panel, and the other end links to each other with the motor, the screen panel fix on the wind-guiding panel, characterized by, set up hexagon honeycomb mesh structure on the import radome fairing, the blade trailing edge has the cockscomb structure opening, and blade leading edge position is provided with the chamfer.
2. The axial flow fan of claim 1, wherein the air guide panel comprises an inlet guide section, a straight cylinder section and a diffuser section, the diffuser section is provided with a diffuser angle α, the diameter of the inner wall of the inlet guide section is gradually reduced from the air inlet along the axial direction, the diameter of the inner wall of the straight cylinder section is equal, and the diameter of the inner wall of the diffuser section is gradually increased from the air outlet of the straight cylinder section along the axial direction.
3. The axial flow fan with ultra-low noise and high efficiency as claimed in claim 2, wherein the diffusion angle α is 5-40 degrees.
4. The axial flow fan with ultra-low noise and high efficiency as claimed in claim 1, wherein said inlet cowling is made of plastic or metal mesh.
5. The axial flow fan with ultra-low noise and high efficiency as claimed in claim 1, wherein the length L of the chamfer provided at the leading edge of the blade is between 2 mm and 10mm, and the radius R is between 0.5 mm and 1.5 mm.
6. The axial flow fan of claim 1, wherein the air guiding ring has a plurality of axially spaced guide vanes.
7. The axial flow fan with ultra-low noise and high efficiency as claimed in claim 1, wherein the number of the motor supports is between 3 and 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120854254.5U CN214945081U (en) | 2021-04-25 | 2021-04-25 | Ultralow-noise high-efficiency axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120854254.5U CN214945081U (en) | 2021-04-25 | 2021-04-25 | Ultralow-noise high-efficiency axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214945081U true CN214945081U (en) | 2021-11-30 |
Family
ID=79066912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120854254.5U Active CN214945081U (en) | 2021-04-25 | 2021-04-25 | Ultralow-noise high-efficiency axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214945081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649005A (en) * | 2020-05-30 | 2020-09-11 | 浙江科贸实业有限公司 | Air conditioner axial flow fan and air duct |
-
2021
- 2021-04-25 CN CN202120854254.5U patent/CN214945081U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649005A (en) * | 2020-05-30 | 2020-09-11 | 浙江科贸实业有限公司 | Air conditioner axial flow fan and air duct |
| CN111649005B (en) * | 2020-05-30 | 2024-06-14 | 浙江科贸实业有限公司 | Axial-flow fan and dryer of air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110374900B (en) | Mixed flow fan with sinusoidal meridian flow channel | |
| CN203516203U (en) | Centrifugal fan volute, centrifugal fan and sweeping machine | |
| CN214945081U (en) | Ultralow-noise high-efficiency axial flow fan | |
| CN113446237B (en) | Centrifugal ventilator with semi-open type ternary impeller | |
| CN211626867U (en) | Flow deflector and wind tunnel test device with same | |
| CN203548269U (en) | Backward type centrifugal fan | |
| CN105179275A (en) | Novel mixed flow pipeline fan | |
| CN117450113A (en) | Axial flow fan and guiding device thereof | |
| CN215256988U (en) | Low-noise outlet flow guide and ventilator with same | |
| CN201475038U (en) | Fully-mixed flow impeller | |
| CN107725285B (en) | Wind turbine tail flow dissipation device | |
| CN211718331U (en) | Calibrating device of breeze anemoscope | |
| CN213953987U (en) | Axial flow fan | |
| CN201739231U (en) | Flow-guiding protective screen for axial flow fan of air conditioner | |
| CN209818372U (en) | Negative pressure formula axial fan of high-efficient silence | |
| CN210068521U (en) | Axial fan structure of high-efficient low noise | |
| CN209195763U (en) | A kind of diagonal flow fan | |
| CN108350860B (en) | Tunnel wind turbine with horizontal axis of rotor rotation | |
| CN111425459A (en) | Axial flow fan with 0.5 hub ratio | |
| CN217462603U (en) | High-energy-efficiency alternating-current electric fan | |
| CN103821772A (en) | Optimized control rod drive mechanism cooling fan | |
| CN217999965U (en) | Flow guide ring structure, axial flow fan, outdoor unit and air conditioning system | |
| CN203702665U (en) | Improved cooling fan of control bar driving mechanism | |
| CN212838424U (en) | Low-noise oblique flow type grain storage ventilator | |
| CN202040089U (en) | Mixed-flow fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |