CN214837215U - Bionic noise-reduction efficient outer rotor axial flow fan - Google Patents
Bionic noise-reduction efficient outer rotor axial flow fan Download PDFInfo
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- CN214837215U CN214837215U CN202121281015.1U CN202121281015U CN214837215U CN 214837215 U CN214837215 U CN 214837215U CN 202121281015 U CN202121281015 U CN 202121281015U CN 214837215 U CN214837215 U CN 214837215U
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- axial flow
- outer rotor
- impeller
- axial
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Abstract
The utility model discloses a bionic noise-reduction high-efficiency external rotor axial flow fan, which consists of a flow guide panel, a protective mesh enclosure, an external rotor motor and an axial flow impeller, wherein one end of the protective mesh enclosure is fixed on the flow guide panel, and the other end of the protective mesh enclosure fixedly supports the external rotor motor; the axial flow impeller is assembled with the output end of the outer rotor motor in a fitting manner, the axial flow impeller is arranged in the flow guide panel and consists of a plurality of blades, and a shell-shaped turbulence structure is arranged on each blade; the shell-shaped turbulence structure is formed by a plurality of gradually-raised irregular wavy structures, and the plurality of gradually-raised irregular wavy structures start from the middle part of the blade and extend to the tail edge of the blade. The utility model discloses a conchoidal vortex flow structure of good, the impeller of axial compressor impeller aerodynamic performance has reduced eddy current loss, and the efficiency of fan is showing improvement, the noise obviously reduces.
Description
Technical Field
The utility model relates to a fan technical field especially relates to a bionical high-efficient external rotor axial fan of making an uproar that falls.
Background
The ventilator is widely applied to electrical equipment which is visible everywhere in production and life, such as ventilation, heating ventilation, refrigeration, air purification and the like, and the noise of the ventilator has adverse effects on the physical and mental health of people; in addition, the total number of the fans used is large, a large amount of electric energy is consumed, and considerable energy saving and emission reduction benefits can be generated by improving the energy efficiency of the fans. Therefore, noise reduction and efficiency improvement are the main goals pursued by the ventilator industry. The common ventilator on the market at present has the problem of low efficiency and high noise, and can not meet the requirements of economic and social development.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model designs a high-efficient external rotor axial fan of making an uproar falls in bionical.
The utility model adopts the following technical scheme:
a bionic noise-reduction high-efficiency outer rotor axial flow fan comprises a flow guide panel, a protective mesh enclosure, an outer rotor motor and an axial flow impeller, wherein one end of the protective mesh enclosure is fixed on the flow guide panel, and the other end of the protective mesh enclosure is fixedly supported on the outer rotor motor; the axial flow impeller is assembled with the output end of the outer rotor motor in a fitting manner, the axial flow impeller is arranged in the flow guide panel and consists of a plurality of blades, and a shell-shaped turbulence structure is arranged on each blade; the shell-shaped turbulence structure is formed by a plurality of gradually-raised irregular wavy structures, and the plurality of gradually-raised irregular wavy structures start from the middle part of the blade and extend to the tail edge of the blade. From the middle part of the blade, a plurality of smooth wave-shaped bulges are smoothly transited and extend to the tail edge of the blade, so that the noise can be reduced, and the pneumatic efficiency of the impeller can be improved.
Preferably, the guide panel comprises a collector-shaped inlet unit arranged at an inlet and a cylindrical guide unit arranged in the middle, and the axial-flow impeller is arranged in the cylindrical guide unit of the guide panel.
Preferably, a flanging is arranged at the outlet of the flow guide panel, and the flanging is fixed at one end of the protective screening cover. A rivet nut is arranged on the flanging of the outlet of the diversion panel; the protective net cover is fixedly connected with the flow guide panel through a fastener.
Preferably, the axial flow impeller is composed of 3-9 blades.
Preferably, the external rotor motor may be a direct current motor (DC/EC) or an alternating current asynchronous motor (AC).
Preferably, the axial flow impeller is formed by stamping a steel plate or an aluminum plate, and is integrally injection molded or aluminum die-cast.
The utility model has the advantages that: the utility model discloses axial fan moves, and the air flows in with higher speed gradually through water conservancy diversion panel collector form entry unit to export from water conservancy diversion panel after being flowed to the acting pressure boost by axial impeller in water conservancy diversion casing cylinder shape water conservancy diversion unit, because axial impeller aerodynamic performance is good, the conch form vortex structure of impeller has reduced eddy current loss, the efficiency of fan is showing improvement, the noise obviously reduces.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an exploded view of the overall structure of the present invention;
fig. 3 is a half sectional view of the present invention;
fig. 4 is a schematic top view of the structure of the axial flow impeller of the present invention;
fig. 5 is the local detail structure chart of the bionic noise reduction structure of the middle axial flow impeller of the utility model.
In the figure: 1. the impeller comprises a flow guide panel, 2, a protective mesh enclosure, 3, an outer rotor motor, 4, an axial flow impeller, 41, blades, 42 and a shell-shaped flow disturbing structure.
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 fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a bionic noise-reduction high-efficiency outer rotor axial flow fan comprises a flow guide panel 1, a protective mesh enclosure 2, an outer rotor motor 3 and an axial flow impeller 4.
The guide panel 1 is arranged on user equipment or a fixed platform; a flanging is arranged at the outlet of the flow guide panel, and the protective mesh enclosure 2 is connected with the flanging at the outlet of the flow guide panel through a fastener.
The flow guide panel comprises a flow collector-shaped inlet unit arranged at an inlet and a cylindrical flow guide unit arranged in the middle, and an axial flow impeller 4 is arranged in the cylindrical flow guide unit of the flow guide panel; the axial flow impeller 4 is composed of 3-9 blades 41 and is assembled with a rotor shell of the outer rotor motor 3 in an attaching mode.
The protective mesh enclosure 2 supports the outer rotor motor 3, and bears the rotation torque, the axial force, and the gravity from the outer rotor motor 3.
The axial flow impeller 4 is provided with a bionic noise reduction structure on the blades on the basis of three-dimensional pneumatic design, and the bionic noise reduction structure is a shell-shaped turbulent flow structure 42. The shell-shaped turbulent flow structure 42 is formed by a plurality of gradually-raised irregular wave-shaped structures, the plurality of gradually-raised irregular wave-shaped structures start from the middle of the blade 41 and extend to the tail edge of the blade 41, and the noise can be effectively reduced and the pneumatic efficiency of the impeller can be improved under the working state.
The utility model discloses during operation, the fluid flows into from 1 collector form entry unit of water conservancy diversion panel with higher speed gradually, flows from 1 export of water conservancy diversion panel after 4 acting superchargers of axial flow impeller through, because 4 pneumatic properties of axial flow impeller are good, the shell vortex structure of axial flow impeller 4 has reduced eddy current loss, and the efficiency of fan is showing improvement, the noise obviously reduces.
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 (6)
1. A bionic noise-reduction high-efficiency outer rotor axial flow fan comprises a flow guide panel (1), a protective mesh enclosure (2), an outer rotor motor (3) and an axial flow impeller (4), wherein one end of the protective mesh enclosure (2) is fixed on the flow guide panel (1), and the other end of the protective mesh enclosure is fixedly supported with the outer rotor motor (3); the axial-flow impeller (4) is attached to and assembled with the output end of the outer rotor motor (3), and the axial-flow impeller (4) is arranged in the flow guide panel (1), and is characterized in that the axial-flow impeller (4) is composed of a plurality of blades (41), and a shell-shaped turbulence structure (42) is arranged on each blade (41); the shell-shaped turbulence structure (42) is formed by a plurality of gradually-raised irregular wavy structures, and the plurality of gradually-raised irregular wavy structures start from the middle of the blade (41) and extend to the tail edge of the blade (41).
2. The bionic noise-reduction high-efficiency external rotor axial flow fan as claimed in claim 1, wherein the flow guide panel (1) comprises a current collector-shaped inlet unit arranged at an inlet and a cylindrical flow guide unit arranged in the middle, and the axial flow impeller (4) is arranged in the cylindrical flow guide unit of the flow guide panel (1).
3. The bionic noise-reduction high-efficiency outer rotor axial flow fan as claimed in claim 1 or 2, wherein a flange is arranged at the outlet of the flow guide panel (1), and the flange is fixed at one end of the protective mesh enclosure (2).
4. The bionic noise-reducing high-efficiency outer rotor axial flow fan as claimed in claim 1, wherein the axial flow impeller (4) is composed of 3-9 blades (41).
5. The bionic noise-reducing high-efficiency outer rotor axial flow fan as claimed in claim 1, wherein the outer rotor motor (3) is a direct current motor or an alternating current asynchronous motor.
6. The bionic noise-reducing high-efficiency outer rotor axial flow fan as claimed in claim 1, wherein the axial flow impeller (4) is formed by punching a steel plate and an aluminum plate, and is formed by integral injection molding or aluminum die casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121281015.1U CN214837215U (en) | 2021-06-09 | 2021-06-09 | Bionic noise-reduction efficient outer rotor axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121281015.1U CN214837215U (en) | 2021-06-09 | 2021-06-09 | Bionic noise-reduction efficient outer rotor axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214837215U true CN214837215U (en) | 2021-11-23 |
Family
ID=78804436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121281015.1U Active CN214837215U (en) | 2021-06-09 | 2021-06-09 | Bionic noise-reduction efficient outer rotor axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214837215U (en) |
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2021
- 2021-06-09 CN CN202121281015.1U patent/CN214837215U/en active Active
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