CN108223442A - The molding mixed flow turbine of split - Google Patents
The molding mixed flow turbine of split Download PDFInfo
- Publication number
- CN108223442A CN108223442A CN201810084181.9A CN201810084181A CN108223442A CN 108223442 A CN108223442 A CN 108223442A CN 201810084181 A CN201810084181 A CN 201810084181A CN 108223442 A CN108223442 A CN 108223442A
- Authority
- CN
- China
- Prior art keywords
- kuppe
- split
- wall
- interior
- mixed flow
- 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.)
- Pending
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 description 8
- 230000001133 acceleration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of molding mixed flow turbine of split, including outer kuppe and with interior kuppe, the outer kuppe inner wall and between interior water conservancy diversion cover outer wall around the central axis of any one be equipped with several first blades, the interior kuppe and the cooperation installation of outer kuppe, diversion air duct is formed between the inner wall of first blade, the outer wall of interior kuppe and outer kuppe, surrounding the central axis on the outer wall of the outer kuppe is equipped with several second blades.The molding mixed flow turbine of split of the present invention has the advantages that prevent back letting out, effectively improves wind pushing performance.
Description
Technical field
The present invention relates to a kind of turbine more particularly to a kind of turbines for preventing back letting out.
Background technology
Existing split turbine generally comprise outer kuppe and with interior kuppe, when turbine rotation, turbine center into
Gas port will suck the air of surrounding, and air is by the driving of the first blade, and from turbine under the guiding function of diversion air duct
The air outlet blowout of surrounding, and face out air-supply along the inner wall of outer cover.Since outer kuppe is also operating at work, because
This, outer kuppe must be between outer cover there are certain interval, and otherwise the outside wall surface of outer kuppe can rub with outer cover, shadow
Ring the operation of turbine.However, the air inlet air pressure due to turbine is relatively low, it is higher along the air outlet air pressure of wheel, therefore, air outlet one
The high pressure draught of side will be returned by this gap and let out air inlet side, can weaken the output pressure and flow of turbine in this way,
Influence the performance of turbine.
Invention content
The purpose of the present invention is to provide a kind of molding mixed flow turbines of split, have and prevent back letting out, effectively improve air-supply
The advantages of energy.
To achieve these goals, the molding mixed flow turbine of split provided by the invention is led including outer kuppe and with interior
Stream cover, the outer kuppe inner wall and between interior water conservancy diversion cover outer wall around the central axis of any one be equipped with several first leaves
Piece, the interior kuppe and the cooperation installation of outer kuppe, the inner wall of first blade, the outer wall of interior kuppe and outer kuppe
Between form diversion air duct, be equipped with several second blades around the central axis on the outer wall of the outer kuppe.
Compared with prior art, since the present invention on the outer wall of the outer kuppe around the central axis by setting
Several second blades are put, so as to so that second blade works as institute in the gap between the outer kuppe and outer cover
When stating outer kuppe operating, second blade also operates therewith, and second blade can utilize rotational movement
Air in gap, and then the air in gap is made to generate centrifugal force and be thrown away to the air outlet direction of turbine, therefore, institute
Stating the second blade can prevent air outlet from letting out air inlet side by gap time in the high pressure draught of side, prevent back letting out so as to play
Effect, effectively improve the wind pushing performance of turbine.
Preferably, second blade prolongs from the outer ledge of the outer kuppe to intermediate air inlet curved edge
It stretches.
Preferably, first blade and/or the second blade are projected as in the plane perpendicular to the central axis
Logarithmic spiral curve.Further increase air-flow size and the stationarity of air-flow.
Preferably, first blade is set to the outer wall of the interior kuppe.
Specifically, several third blades are equipped with around the central axis on the inner wall of the outer kuppe.
Specifically, the third blade is projected as logarithmic spiral curve in the plane perpendicular to the central axis.
The third blade can increase dynamic pressure and the static pressure of air-flow, while improve the acceleration efficiency to air-flow.
Preferably, the inner wall of the interior kuppe is equipped with quaterfoil, the quaterfoil is outside the interior kuppe
Lateral edges extend internally.The quaterfoil can make the air-flow from the air outlet outflow of turbine gather middle part rapidly, so as to
Be conducive to air-flow in the middle part of outer cover channel outflow, ensure air-flow to smoothness and stabilization.
Preferably, further include the electric machine assembly for driving the outer kuppe and being rotated with interior kuppe.
Specifically, the electric machine assembly includes PM rotor, wound stator and fixing axle, and the fixing axle is in fix,
The wound stator is fixed in the fixing axle, and the PM rotor is fixed on the pedestal of the interior kuppe inner wall and encloses
It is around in outside the wound stator, bearing is equipped between the fixing axle and the interior kuppe.By the way that the permanent magnet is set to turn
Son, wound stator, and the fixing axle and wound stator are fixed to each other, but the fixing axle and the interior kuppe it
Between bearing is set, therefore, the PM rotor can directly drive the interior kuppe operating, so as to avoid using fixing axle
Rotation output power drive manner, turbine not using fixing axle as center of rotation, operation it is more stable, and stream make an uproar it is lower；In addition,
Since fixing axle does not rotate, the intensity requirement of axis body is reduced, to wanting for the circularity of axis processing, smoothness and concentricity
It asks and is greatly reduced, so as to advantageously reduce production cost, improve reliability.
Specifically, both fixed fixing piece is equipped between the fixing axle and the wound stator.
Description of the drawings
Fig. 1 is the structure chart of the molding mixed flow turbine of split of the embodiment of the present invention one.
Fig. 2 is the exploded view of the molding mixed flow turbine of split of the embodiment of the present invention one.
Fig. 3 is the structure chart of the outer kuppe of the molding mixed flow turbine of split of the embodiment of the present invention one.
Fig. 4 is the structure chart of the interior kuppe of the molding mixed flow turbine of split of the embodiment of the present invention one.
Fig. 5 is the structure chart of the electric machine assembly of the molding mixed flow turbine of split of the embodiment of the present invention one.
Fig. 6 is the exploded view of the electric machine assembly of the molding mixed flow turbine of split of the embodiment of the present invention one.
Fig. 7 is the molding mixed flow turbine of split of the embodiment of the present invention one and the sectional view of outer cover.
Fig. 8 is the structure chart of the molding mixed flow turbine of split of the embodiment of the present invention two.
Fig. 9 is the exploded view of the molding mixed flow turbine of split of the embodiment of the present invention two.
Figure 10 is the structure chart of the outer kuppe of the molding mixed flow turbine of split of the embodiment of the present invention two.
Figure 11 is the structure chart of the interior kuppe of the molding mixed flow turbine of split of the embodiment of the present invention two.
Specific embodiment
For the technology contents that the present invention will be described in detail, construction feature, the effect realized, below in conjunction with embodiment and match
Attached drawing is closed to be explained in detail.
As shown in Figure 1 to Figure 4 and shown in Fig. 7, the molding mixed flow turbine 100 of split of the embodiment of the present invention one is installed on outer cover
In 200, including outer kuppe 1 and with interior kuppe 2, it is described state outer kuppe 1 with busbar be arc the first outer outlet body 11,
And the second outer outlet body 12 to be formed is bent upwards from the inside edge of first outer outlet body 11；The interior kuppe 2 has
It is bent upwards in form taper second in cover body 21 in the first of plane and from the inside edge of cover body 21 in described first
Cover body 22.Set between the outer kuppe 1 and outer cover 200 in gap 201, outer 1 inner wall of kuppe and with interior kuppe 2
Between outer wall around the outer kuppe 1 and or interior kuppe 2 central axis be equipped with several first blades 3, it is specifically, described
First blade 3 is set to the outer wall of the interior kuppe 2, and first blade 3 is in integrated injection molding with the interior kuppe 2
Structure；First blade 3 extends and from the outer ledge of the interior kuppe 2 to bent intermediate perpendicular to the center
5 rank logarithmic spiral curves are projected as in the plane of axis.The interior kuppe 2 and the cooperation of outer kuppe 1 are installed, in the two
Mandrel line overlaps, and diversion air duct 103 is formed between the inner wall of first blade 3, the outer wall of interior kuppe 2 and outer kuppe 1,
The center of the outer kuppe 1 forms air inlet 101, shape between the outer kuppe 1 and the outer ledge of the interior kuppe 2
Into air outlet 102.
As shown in figure 4, first blade 3 has tertiary structure, the first order 31 is located in described first on cover body, described
The outer ledge of the width of the first order 31 cover body 21 along described first is to intermediate extending direction in gradually increase.The second level 32
In second on cover body 22, the connection of width cover body 22 out of cover body 21 in described first and described second of the second level 32
Place is in be gradually reduced to intermediate extending direction.The second level 32 cover body 22 in cover body 21 and described second in described first
The width of junction is more than the width of the first order 31 junction of cover body 22 in cover body 21 and described second in described first
Degree.The third level 33 is connected to the top edge of the second level 32, for chamferring wind at the air inlet 101, so as to which gas be pressed into
The diversion air duct 103.
Again as shown in Figures 1 and 3, several second leaves are equipped with around the central axis on the outer wall of the outer kuppe 1
Piece 4, second blade 4 are located in the gap 201.Second blade 4 is in integrated injection molding with the outer kuppe 1
Structure.Second blade 4 extends from the outer ledge of first outer outlet body 11 to centre, extends to first outer outlet body
11 with 12 junction of the second outer outlet body and everywhere of same size.Second blade 4 is perpendicular to the central axis
Plane on be projected as logarithmic spiral curve.
Again referring to Fig. 3, being equipped with several third blades 5 around the central axis on the inner wall of the outer kuppe 1.Institute
It is in be positioned apart from that third blade 5, which is stated, with first blade 3.The third blade 5 is perpendicular to the flat of the central axis
Logarithmic spiral curve is projected as on face.The third blade 5 extends from the outer ledge of first outer outlet body 11 to centre,
Extend to first outer outlet body 11 and 12 junction of the second outer outlet body；The third blade 5 is in the outer kuppe 1
Integrated injection molding structure.Since the flow of turbine is directly proportional to the quantity of blade, in order to obtain larger flow, can pass through
Increase the quantity of blade to realize, still, blade is more, and the difficulty of injection molding is bigger, therefore, by the interior kuppe
2 outer wall sets the first blade 3, sets third blade 5 in the inner wall of the outer kuppe 1, can not only make the blade of turbine
Quantity increases, and so as to increase the dynamic pressure of air-flow and static pressure, while improves the acceleration efficiency to air-flow, but also can reduce whirlpool
The production difficulty of wheel.
It please refers to Fig.1 again and Fig. 4, the inner wall of the interior kuppe 2 is equipped with quaterfoil 6, and the quaterfoil 6 is from described
The outer ledge of interior kuppe 2 extends internally.The quaterfoil 6 is in integrated injection molding structure with the interior kuppe 2.Institute
Stating quaterfoil 6 can make the air-flow from the outflow of the air outlet 102 of turbine gather middle part rapidly, so as to be conducive to air-flow from outer
Cover 200 middle part channel outflow, ensure air-flow to smoothness and stabilization.
As shown in Fig. 2, Fig. 5 and Fig. 6, the molding mixed flow turbine 100 of split further include the driving outer kuppe 1 and
With the electric machine assembly 7 of interior kuppe 2 rotation.The electric machine assembly 7 includes PM rotor 71, wound stator 72 and fixing axle
73, in fixing, the wound stator 72 is fixed in the fixing axle 73 fixing axle 73, specifically, the fixing axle 73
Both fixed fixing piece 75 is equipped between the wound stator 72.The PM rotor 71 is fixed on the interior kuppe
The pedestal 23 of 2 inner walls and around outside the wound stator 72, is equipped with bearing between the fixing axle 73 and the interior kuppe 2
74.By setting the PM rotor 71, wound stator 72, and the fixing axle 73 and wound stator 72 is mutually solid
It is fixed, and bearing 74 is set between the fixing axle 73 and the interior kuppe 2, therefore, the PM rotor 71 can be straight
Tape splicing moves the interior kuppe 2 and operates, and so as to avoid the drive manner using the rotation output power of fixing axle 73, turbine is not with solid
Dead axle 73 be center of rotation, operation it is more stable, and stream make an uproar it is lower；In addition, since fixing axle 73 does not rotate, to axis body
Intensity requirement reduce, the requirement to the circularity, smoothness and concentricity of axis processing is greatly reduced, so as to advantageously reduce life
Cost is produced, improves reliability.
Compared with prior art, since the present invention on the outer wall of the outer kuppe 1 by surrounding the central axis
Several second blades 4 are set, so as to so that gap of second blade 4 between the outer kuppe 1 and outer cover 200
In 201, when the outer kuppe 1 operates, second blade 4 also operates therewith, and second blade 4 can utilize
Rotational movement is located at the air in gap 201, so air in gap 201 is made to generate centrifugal force and to the outlet air of turbine
102 directions of mouth are thrown away, and therefore, second blade 4 can prevent air outlet 102 from being returned in the high pressure draught of side by gap 201
101 side of air inlet is let out, so as to play the role of preventing back letting out, effectively improves the wind pushing performance of turbine.
Fig. 8 to Figure 11 is please referred to, the molding mixed flow turbine 100 ' of split of the embodiment of the present invention two is illustrated in figure, it is described
The molding mixed flow turbine 100 ' of split is installed in outer cover 200, including outer kuppe 1 ' and with interior kuppe 2 ', it is described to state outer lead
The busbar of stream cover 1 ' and interior kuppe 2 ' is arc.It is set between the outer kuppe 1 ' and outer cover 200 in gap 201, it is described
Outer 1 ' inner wall of kuppe and between 2 ' outer wall of interior kuppe around the outer kuppe 1 ' and or interior kuppe 2 ' central shaft
Line be equipped with several first blades 3 ', first blade 3 ' be set to the outer wall of the interior kuppe 2 ' and with the interior kuppe
2 ' in integrated injection molding structure.First blade 3 ' extends simultaneously from the outer ledge of the interior kuppe 2 ' to bent intermediate
And it is projected as logarithmic spiral curve in the plane perpendicular to the central axis.The width of first blade 3 ' is described in
The outer ledge of interior kuppe 2 ' is to intermediate extending direction in gradually increase.The interior kuppe 2 ' and outer kuppe 1 ' cooperation peace
Dress, the central axis of the two overlap, shape between the inner wall of first blade 3 ', the outer wall of interior kuppe 2 ' and outer kuppe 1 '
Into diversion air duct 103 ', the center of the outer kuppe 1 forms air inlet 101 ', the outer kuppe 1 ' and the interior kuppe
Air outlet 102 ' is formed between 2 ' outer ledge.
It please refers to again and is equipped with several second leaves around the central axis on the outer wall of outer kuppe 1 ' described in Fig. 8 and Figure 10
Piece 4 ', second blade 4 ' is in the gap 201.Second blade 4 ' is with the outer kuppe 1 ' in integrated injection molding
Molding structure.Second blade 4 ' extends from the outer ledge of the outer kuppe 1 ' to centre, extends to substantially described
The middle part of outer kuppe 1 ' and the 4 ' width of the second blade are along the outer ledge of the outer kuppe 1 ' to intermediate extending direction
In gradual increase.Second blade 4 ' is projected as logarithmic spiral curve in the plane perpendicular to the central axis.
Again as shown in Figure 10, several third blades are equipped with around the central axis on the inner wall of the outer kuppe 1 '
5’.The third blade 5 ' and first blade 3 ' are in being positioned apart from.The third blade 5 ' is perpendicular to the center
Logarithmic spiral curve is projected as in the plane of axis.The third blade 5 ' is from the outer ledge of the outer kuppe 1 ' in
Between extend, extend to the 1 ' inward flange of outer kuppe；The third blade 5 ' and the outer kuppe 1 ' in integrated injection molding into
Type structure.
In addition, the electric machine assembly 7 of the structure of the electric machine assembly (not shown) of the turbine of the present embodiment two and embodiment one
Structure it is identical, be not repeated to describe herein.
Above disclosed is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore the equivalent variations made according to scope of the present invention patent, still falls within the range that the present invention is covered.
Claims (10)
1. a kind of molding mixed flow turbine of split, it is characterised in that：Including outer kuppe and with interior kuppe, the outer kuppe
Inner wall and several first blades are equipped with around the central axis of any one, the interior kuppe and outer between interior water conservancy diversion cover outer wall
Kuppe cooperation is installed, and forms diversion air duct between the inner wall of first blade, the outer wall of interior kuppe and outer kuppe, institute
It states and is equipped with several second blades around the central axis on the outer wall of outer kuppe.
2. the molding mixed flow turbine of split as described in claim 1, it is characterised in that：Second blade is from the outer water conservancy diversion
The outer ledge of cover extends to intermediate air inlet curved edge.
3. the molding mixed flow turbine of split as described in claim 1, it is characterised in that：First blade and/or the second leaf
Piece is projected as logarithmic spiral curve in the plane perpendicular to the central axis.
4. the molding mixed flow turbine of split as described in claim 1, it is characterised in that：First blade is set in described
The outer wall of kuppe.
5. the molding mixed flow turbine of split as claimed in claim 4, it is characterised in that：It is surrounded on the inner wall of the outer kuppe
The central axis is equipped with several third blades.
6. the molding mixed flow turbine of split as claimed in claim 5, it is characterised in that：The third blade is perpendicular to described
Logarithmic spiral curve is projected as in the plane of central axis.
7. the molding mixed flow turbine of split as described in claim 1, it is characterised in that：The inner wall of the interior kuppe is equipped with the
Quaterfoil, the outer ledge of the quaterfoil from the interior kuppe extend internally.
8. the molding mixed flow turbine of split as described in claim 1, it is characterised in that：Further include the driving outer kuppe and
With the electric machine assembly of interior kuppe rotation.
9. the molding mixed flow turbine of split as claimed in claim 8, it is characterised in that：The electric machine assembly turns including permanent magnet
Son, wound stator and fixing axle, the fixing axle is in fixing, and the wound stator is fixed in the fixing axle, the permanent magnetism
Body rotor is fixed on the pedestal of the interior kuppe inner wall and around outside the wound stator, and the fixing axle interior is led with described
Bearing is equipped between stream cover.
10. the molding mixed flow turbine of split as claimed in claim 9, it is characterised in that：The fixing axle is determined with the winding
Both fixed fixing piece is equipped between son.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810084181.9A CN108223442A (en) | 2018-01-29 | 2018-01-29 | The molding mixed flow turbine of split |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810084181.9A CN108223442A (en) | 2018-01-29 | 2018-01-29 | The molding mixed flow turbine of split |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223442A true CN108223442A (en) | 2018-06-29 |
Family
ID=62669069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810084181.9A Pending CN108223442A (en) | 2018-01-29 | 2018-01-29 | The molding mixed flow turbine of split |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223442A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053013A (en) * | 1990-12-14 | 1991-07-17 | 冶金工业部安全环保研究院 | Mixed flow fan for dedusting |
| CN1278188A (en) * | 1997-09-05 | 2000-12-27 | 文特拉西斯特股份有限公司 | Rotary pump with hydrodynamically suspended impeller |
| CN201918832U (en) * | 2011-02-09 | 2011-08-03 | 涂进安 | Noise-suppression structure for motor |
| CN202665445U (en) * | 2012-07-06 | 2013-01-16 | 湖州巨宏电机有限公司 | Anti-backflow impeller for dust collector |
| CN203189343U (en) * | 2013-04-23 | 2013-09-11 | 福建华大电机有限公司 | Diversion type diagonal flow fan |
| WO2014079968A2 (en) * | 2012-11-26 | 2014-05-30 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Arrangement for mounting a shaft having axial securement |
| CN106593949A (en) * | 2016-09-12 | 2017-04-26 | 东莞市卓奇电子科技有限公司 | Split impeller |
| CN206290484U (en) * | 2016-11-11 | 2017-06-30 | 杭州顿力电器有限公司 | Centrifugal impeller |
| CN207848024U (en) * | 2018-01-29 | 2018-09-11 | 东莞市卓奇电子科技有限公司 | Seperated molding mixed flow turbine |
-
2018
- 2018-01-29 CN CN201810084181.9A patent/CN108223442A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053013A (en) * | 1990-12-14 | 1991-07-17 | 冶金工业部安全环保研究院 | Mixed flow fan for dedusting |
| CN1278188A (en) * | 1997-09-05 | 2000-12-27 | 文特拉西斯特股份有限公司 | Rotary pump with hydrodynamically suspended impeller |
| CN201918832U (en) * | 2011-02-09 | 2011-08-03 | 涂进安 | Noise-suppression structure for motor |
| CN202665445U (en) * | 2012-07-06 | 2013-01-16 | 湖州巨宏电机有限公司 | Anti-backflow impeller for dust collector |
| WO2014079968A2 (en) * | 2012-11-26 | 2014-05-30 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Arrangement for mounting a shaft having axial securement |
| CN203189343U (en) * | 2013-04-23 | 2013-09-11 | 福建华大电机有限公司 | Diversion type diagonal flow fan |
| CN106593949A (en) * | 2016-09-12 | 2017-04-26 | 东莞市卓奇电子科技有限公司 | Split impeller |
| CN206290484U (en) * | 2016-11-11 | 2017-06-30 | 杭州顿力电器有限公司 | Centrifugal impeller |
| CN207848024U (en) * | 2018-01-29 | 2018-09-11 | 东莞市卓奇电子科技有限公司 | Seperated molding mixed flow turbine |
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