CN207906107U - Axial flow blower - Google Patents
Axial flow blower Download PDFInfo
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- CN207906107U CN207906107U CN201820311057.7U CN201820311057U CN207906107U CN 207906107 U CN207906107 U CN 207906107U CN 201820311057 U CN201820311057 U CN 201820311057U CN 207906107 U CN207906107 U CN 207906107U
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- wheel hub
- blade
- electric machine
- axial flow
- flow blower
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Abstract
The utility model is related to a kind of axial flow blower, the utility model has external rotor electric machine, fixed frame and impeller；The fixed frame has outer ring body；The external rotor electric machine is fixedly connected on the center of fixed frame；The impeller is fixedly connected on the outer rotor of external rotor electric machine；The wheel rotation is arranged in outer ring body；The impeller includes wheel hub；The wheel hub upper edge rotation axis circle distribution has multiple blades；The center of wheel hub is equipped with the through-hole passed through for the outer rotor of external rotor electric machine, and surrounding through-hole circle distribution on wheel hub has mounting hole；The periphery of the outer rotor of the external rotor electric machine is equipped with annular flange terminal pad；The wheel hub is sleeved on the outside of the outer rotor of external rotor electric machine, and is fixedly connected with annular flange terminal pad across mounting hole by connecting bolt.The connection type of impeller and external rotor electric machine is greatly reduced whole height by the utility model, it is made to be equally applicable in some limited installation spaces.
Description
Technical field
The utility model is related to a kind of axial flow blowers.
Background technology
Axial flow blower is rotated by impeller, and gas is parallel to the device of fan shaft flowing.Axial flow blower is generally used for
Traffic requirement is higher and the lower occasion of pressure requirements.The purposes of axial flow blower is very extensive, such as electric fan, outdoor machine of air-conditioner wind
Fan, automobile axial flow blower etc..Axial flow blower is mainly made of impeller and casing, simple in structure but index request is very high.
When the impeller of traditional axial flow blower is fixedly connected with external rotor electric machine, need first to be sleeved on the wheel hub of impeller outer
On the outer rotor of rotor electric machine, then it is bolted to connection.Since the wheel hub of impeller inherently has certain thickness,
After installation, whole height increases, and inside some particular surroundings, and is not suitable for.
It is to determine with good aeroperformance and noise specification meanwhile as the core component impeller of axial flow blower
The key of axial flow blower performance.And the designs such as the arrangement of impeller blade, the shape of blade, angle of blade can directly affect
The aeroperformance and noise of impeller.
Furthermore some axial flow blower impellers can increase a rotating ring to ensure its performance at the top of blade.Leaf
The top of piece and the joint of rotating ring often form a large amount of dust stratifications with using, to influence the performance of axial flow blower.For
Solution problem above generally requires to remove dust stratification by maintenance.But just because of the presence of dust stratification problem so that axis stream wind
The maintenance frequency of machine is excessive, reduces service efficiency.
Utility model content
The purpose of this utility model is that a kind of height is low, and whole aeroperformance is good, low noise, and can effectively reduce maintenance frequency
Secondary axial flow blower.
Realizing the technical solution of the utility model aim is：The utility model has external rotor electric machine, fixed frame and impeller；
The fixed frame has outer ring body；The external rotor electric machine is fixedly connected on the center of fixed frame；The impeller is fixedly connected on
On the outer rotor of external rotor electric machine；The wheel rotation is arranged in outer ring body；The impeller includes wheel hub；The wheel hub upper edge
Rotation axis circle distribution has multiple blades；The center of wheel hub is equipped with the through-hole passed through for the outer rotor of external rotor electric machine, wheel hub
It is upper to have mounting hole around through-hole circle distribution；The periphery of the outer rotor of the external rotor electric machine is connected equipped with annular flange
Disk；The wheel hub is sleeved on the outside of the outer rotor of external rotor electric machine, and passes through mounting hole and annular flange by connecting bolt
Terminal pad is fixedly connected.
The medial surface of the through-hole of wheel hub is equipped with multiple along rotation axis circle distribution and the reinforcement parallel with rotation axis
Muscle.
The side of blade is leading edge, and the other side is rear；The leading edge of the blade is equipped with the turbulator with blade one；Institute
It includes multiple protrusions arranged along up-front extending direction to state turbulator；The arrangement form waveform of the protrusion.
Meanwhile also there is the rotating ring coaxial with wheel hub；Wheel hub links into an integrated entity with root of blade, vane tip and rotation
Ring links into an integrated entity.
Above-mentioned turbulator extends to vane tip from root of blade；The protrusion that turbulator is located at root of blade is connect with wheel hub
Integrally；The protrusion that turbulator is located at vane tip links into an integrated entity with rotating ring.
Above-mentioned turbulator is located at the protrusion of vane tip, to the leading edge far from blade and direction gradually close to rotating ring
Natural transition, and formed and linked into an integrated entity with rotating ring and higher than the extension of other protrusions.
Above-mentioned protrusion includes riser portions and fall；The turbulator is located at the protrusion of vane tip, along its riser portions
Extending direction links into an integrated entity to rotating ring nature transition formation and rotating ring higher than the extension of other protrusions.
The angle of the tangent line of above-mentioned vane tip and the tangent line of rotating ring is 10 °~30 °.
On above-mentioned rotating ring notch is equipped with the intersection of the pressure face of blade；The bottom surface of notch is along its corresponding blade
Pressure face extends.
As an optimization, the bottom surface of above-mentioned notch extends to the rear of blade from the up-front one end of extension far from blade.
The utility model has the effect of positive：(1) the utility model is by the connection type of impeller and external rotor electric machine, greatly
Whole height is reduced greatly, it is made to be equally applicable in the effective environment of some installation spaces；
(2) it is good by turbulator to substantially increase whole aeroperformance for the utility model, and can reduce noise；
(3) the utility model further improves aeroperformance, and further reduced by the optimization design of turbulator
Noise；
(4) the utility model further improves aeroperformance by the extension of turbulator, further reduced and makes an uproar
Sound；
(5) the utility model eliminates dust stratification dead angle by the notch on rotating ring, greatly reduces the maintenance frequency of wind turbine
It is secondary；
(6) in the utility model notch optimization design, further obviate dust stratification dead angle；
(7) the utility model can be effectively increased heat dissipation effect by rib, ensure the stability to work long hours and use
Service life.
Description of the drawings
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model, wherein
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the exploded perspective view of the utility model；
Fig. 3 is the structural schematic diagram of external rotor electric machine in the utility model；
Fig. 4 is the structural schematic diagram of impeller in the utility model；
Fig. 5 is the front view of impeller in the utility model；
Fig. 6 is impeller and air quantity-Pressure testing correction data figure with existing impeller in the utility model；
Fig. 7 is air quantity-efficiency test correction data figure of impeller and existing impeller in the utility model；
Fig. 8 is air quantity-noise testing correction data figure of impeller and existing impeller in the utility model.
Specific implementation mode
(embodiment one)
See that Fig. 1 to Fig. 5, the utility model have external rotor electric machine 1, fixed frame 2 and impeller 3；The fixed frame 2 has outer
Ring body；The external rotor electric machine 1 is fixedly connected on the center of fixed frame 2；The impeller 3 is fixedly connected on external rotor electric machine 1
On outer rotor；The impeller 3 is rotatably arranged in outer ring body；The impeller 3 includes the wheel hub 31 and rotating ring 33 of coaxial arrangement；
There are multiple blades 32 along rotation axis circle distribution between the wheel hub 31 and rotating ring 33；Wheel hub 31 connects with root of blade 322
It is connected into one, vane tip 323 links into an integrated entity with rotating ring 33.
The center of wheel hub 31 is equipped with the through-hole passed through for the outer rotor of external rotor electric machine 1, and through-hole circumference is surrounded on wheel hub 31
Mounting hole is distributed with；The periphery of the outer rotor of the external rotor electric machine 1 is equipped with annular flange terminal pad；31 sets of the wheel hub
Mounting hole is passed through to fix company with annular flange terminal pad mounted in the outside of the outer rotor of external rotor electric machine 1, and by connecting bolt
It connects.
The medial surface of the through-hole of wheel hub 31 be equipped with it is multiple along rotation axis circle distribution and it is parallel with rotation axis plus
Strengthening tendons 311.
The side of blade 32 is leading edge, and the other side is rear；The leading edge of the blade 32 is equipped with the rapids with 32 one of blade
Flow device 321；The turbulator 321 includes multiple protrusions along the arrangement of up-front extending direction；The arrangement form wave of the protrusion
Shape wave.
The turbulator 321 extends to vane tip 323 from root of blade 322；Turbulator 321 is located at root of blade 322
Protrusion link into an integrated entity with wheel hub 31；Turbulator position 321 links into an integrated entity in the protrusion of vane tip 323 with rotating ring 33.
The protrusion includes riser portions and fall；The turbulator 321 is located at the protrusion of vane tip 323, along thereon
The extending direction of ascending part links into an integrated entity with rotating ring 33 higher than the extension of other protrusions to the natural transition formation of rotating ring 33
Portion 324.
The tangent line of the vane tip 323 and the angle of the tangent line of rotating ring 33 are 10 °~30 °.
On the rotating ring 33 notch 34 is equipped with the intersection of the pressure face of blade 32 325；The bottom surface of notch 34 is along it
The pressure face 325 of corresponding blade 32 extends.And extend to blade 32 from the up-front one end of extension 324 far from blade 32
Rear.
The inner wall upper edge rotation axis circle distribution of wheel hub 31 is useful for the rib to radiate when rotation.
The rib is in foliaceous.
Just as shown in Figure 6 to 8, the utility model has aeroperformance more outstanding and low noise.
(embodiment two)
The utility model turbulator 321 is located at the protrusion of vane tip 323, to the leading edge far from blade 32 and gradually to rotation
The close direction nature transition of change 33, and formed and linked into an integrated entity with rotating ring 33 and higher than the extension 324 of other protrusions.
Other technical characteristics are identical as embodiment one.
Particular embodiments described above has carried out into one the purpose of this utility model, technical solution and advantageous effect
Step is described in detail, it should be understood that the foregoing is merely specific embodiment of the utility model, is not limited to this
Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap
Containing being within the protection scope of the utility model.
Claims (10)
1. a kind of axial flow blower has external rotor electric machine (1), fixed frame (2) and impeller (3)；The fixed frame (2) has outer shroud
Body；The external rotor electric machine (1) is fixedly connected on the center of fixed frame (2)；The impeller (3) is fixedly connected on external rotor electric machine
(1) on outer rotor；The impeller (3) is rotatably arranged in outer ring body；It is characterized in that：The impeller (3) includes wheel hub
(31)；Wheel hub (31) the upper edge rotation axis circle distribution has multiple blades (32)；The center of wheel hub (31) is equipped with to be turned for outer
The through-hole that the outer rotor of sub-motor (1) passes through has mounting hole on wheel hub (31) around through-hole circle distribution；The external rotor electric machine
(1) periphery of outer rotor is equipped with annular flange terminal pad；The wheel hub (31) is sleeved on outer turn of external rotor electric machine (1)
The outside of son, and be fixedly connected with annular flange terminal pad across mounting hole by connecting bolt.
2. axial flow blower according to claim 1, it is characterised in that：The medial surface of the through-hole of wheel hub (31) is equipped with multiple
Along rotation axis circle distribution and the reinforcing rib (311) parallel with rotation axis.
3. axial flow blower according to claim 1 or 2, it is characterised in that：The side of blade (32) is leading edge, and the other side is
Rear；The leading edge of the blade (32) is equipped with the turbulator (321) with blade (32) one；The turbulator (321) includes more
A protrusion along the arrangement of up-front extending direction；The arrangement form waveform of the protrusion.
4. axial flow blower according to claim 3, it is characterised in that：Also there is the rotating ring coaxial with wheel hub (31)
(33)；Wheel hub (31) links into an integrated entity with root of blade (322), and vane tip (323) links into an integrated entity with rotating ring (33).
5. axial flow blower according to claim 4, it is characterised in that：The turbulator (321) is prolonged from root of blade (322)
Reach vane tip (323)；The protrusion that turbulator (321) is located at root of blade (322) links into an integrated entity with wheel hub (31)；Turbulent flow
The protrusion that device (321) is located at vane tip (323) links into an integrated entity with rotating ring (33).
6. axial flow blower according to claim 5, it is characterised in that：The turbulator (321) is located at vane tip (323)
Protrusion, to the leading edge far from blade (32) and direction nature transition gradually close to rotating ring (33), and formed and rotation
Ring (33) links into an integrated entity and higher than the extension (324) of other protrusions.
7. axial flow blower according to claim 5, it is characterised in that：The protrusion includes riser portions and fall；It is described
Turbulator (321) is located at the protrusion of vane tip (323), and the extending direction along its riser portions is to the natural transition shape of rotating ring (33)
It links into an integrated entity higher than the extension (324) of other protrusions at rotating ring (33).
8. axial flow blower according to claim 4, it is characterised in that：The tangent line and rotating ring of the vane tip (323)
(33) angle of tangent line is 10 °~30 °.
9. axial flow blower according to claim 4, it is characterised in that：Pressure on the rotating ring (33) with blade (32)
The intersection in face (325) is equipped with notch (34)；Prolong along the pressure face (325) of its corresponding blade (32) bottom surface of notch (34)
It stretches.
10. axial flow blower according to claim 9, it is characterised in that：The bottom surface of the notch (34) is from extension (324)
Up-front one end far from blade (32) extends to the rear of blade (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820311057.7U CN207906107U (en) | 2018-03-07 | 2018-03-07 | Axial flow blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820311057.7U CN207906107U (en) | 2018-03-07 | 2018-03-07 | Axial flow blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207906107U true CN207906107U (en) | 2018-09-25 |
Family
ID=63558814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820311057.7U Active CN207906107U (en) | 2018-03-07 | 2018-03-07 | Axial flow blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207906107U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194387A (en) * | 2018-03-07 | 2018-06-22 | 常州祥明智能动力股份有限公司 | Axial flow blower |
| CN109209952A (en) * | 2018-11-09 | 2019-01-15 | 仪坤动力科技（上海）有限公司 | Blade and internal rotor integral structure and blower with fixing axle |
-
2018
- 2018-03-07 CN CN201820311057.7U patent/CN207906107U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194387A (en) * | 2018-03-07 | 2018-06-22 | 常州祥明智能动力股份有限公司 | Axial flow blower |
| CN108194387B (en) * | 2018-03-07 | 2024-06-14 | 常州祥明智能动力股份有限公司 | Axial flow fan |
| CN109209952A (en) * | 2018-11-09 | 2019-01-15 | 仪坤动力科技（上海）有限公司 | Blade and internal rotor integral structure and blower with fixing axle |
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