CN110401300A - Mixed flow fan and motor - Google Patents
Mixed flow fan and motor Download PDFInfo
- Publication number
- CN110401300A CN110401300A CN201910697792.5A CN201910697792A CN110401300A CN 110401300 A CN110401300 A CN 110401300A CN 201910697792 A CN201910697792 A CN 201910697792A CN 110401300 A CN110401300 A CN 110401300A
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- China
- Prior art keywords
- mixed flow
- flow fan
- wheel
- wheel disc
- wheel cap
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of mixed flow fan and motors, wherein, mixed flow fan includes impeller hub (1), blade (2), wheel cap (3) and wheel disc (5), impeller hub (1) exterior is furnished with wheel disc (5), wheel disc (5) surface takes the form of inclined plane, uniform intrinsic blade (2) between the wheel disc (5) and wheel cap (3).The motor includes base (8), rotor structure (9), rotor axial ventilation hole (6) and shaft (10), and mixed flow fan is installed in shaft (10) end.Such new mixed flow fan structure carries out verification experimental verification on company's model motor product, test result, motor ventilation heat dissipation effect are obvious, more general aerofoil fan air quantity increases 60%, 4.XMW motor temperature rise about 67K is particularly suitable for the slow-speed of revolution (1200r/min), high-power air to air cooling wind-driven generator demand.
Description
Technical field
The invention belongs to motor field, specially a kind of mixed flow fan is suitable for the high-power, slow-speed of revolution, self-ventilation double-fed
Wind-driven generator, while being suitable for other pattern motors, especially suitable for the cooling knot of shaft installation fan self-ventilation inside motor
Structure motor.
Background technique
Air to air cooling doubly-fed wind turbine generally uses self-ventilation (IC616) or forced ventilation (IC666) type of cooling,
The aerofoil fan type of cooling is mostly used on 1.5MW ~ 2.XMW grades of air to air cooling double feedback electric engine self-ventilation type of cooling rotors, or is used
Centrifugal fan cooling structure, fan is rotated with rotor generates air pressure air flow, and internal heat is taken out of to air cooler and carries out hot friendship
It changes；Revolving speed is higher, and generation air pressure air flow is bigger, and cooling effect is better.The forced ventilation type of cooling is generally equipped on air cooler
Primary circuit cools down motor, although not influenced by rotor speed, occupies air cooler space or increases motor total height, especially
For heavy-duty motor, problem can be protruded more, bring larger challenge to the design of absolutely empty cool electric machine, and then use air water cooling
The type of cooling.As " the same valence of wind fire " pressure increases, Wind turbines cost declining demand can be significantly using air to air cooling compared with air water cooling
Reduce machine set system cost.
Grade high-power for 3.X ~ 4.XMW, the slow-speed of revolution, self-ventilation doubly-fed wind turbine, increase with generator power,
Motor iron length, outer diameter and volume are being continuously increased, thus generator windage is also being continuously increased.Aerofoil fan such as Fig. 3 institute
Show, the characteristics of aerofoil fan is that flow is big, and wind pressure is small, and it is cooling to be suitable for the lower motor of windage, the installation of aerofoil fan, often
It is unable to meet demand, or even is run counter to desire, cause to have filled fan and does not fill fan difference is little.
For the high-power double feedback electric engine of 3.X ~ 4.XMW, because its revolving speed is low, power lossy is higher, aeration structure originally
It is difficult to meet ventilation and heat requirement, it would be desirable to be able to provide the fan of greater pressure, air quantity.Thus heavy-duty motor is cold using air to air cooling
But mode, fan design become one of the critical issue that design of electrical motor needs to solve.
Summary of the invention
It is an object of the present invention to provide a kind of novel mixed flow fans, when the revolving speed of generator is lower, can generate sufficiently high
Wind pressure, meet the high-power, slow-speed of revolution, self-ventilation requirement.
The present invention is achieved by the following technical scheme:
A kind of mixed flow fan, including impeller hub, blade, wheel cap and wheel disc, the impeller hub exterior are furnished with wheel disc, the wheel
Panel surface takes the form of inclined plane, uniform intrinsic blade between the wheel disc and wheel cap.
Preferably, the blade is using vertical element distortion design, and blade outlet air geometry angle is equal to 90 °, with rotor axial
Ventilation hole alignment.
Preferably, the wheel cap water conservancy diversion end inner surface of the wheel cap uses lip structure, outside the wheel cap sealed end of the wheel cap
Surface uses comb tooth sealing structure.
Preferably, radial fins are equipped with inside the wheel disc.
A kind of motor of specific mixed flow fan, including base, rotor structure, rotor axial ventilation hole and shaft, described turn
Shaft end portion is installed by above-mentioned mixed flow fan.
Rotor uses novel mixed-flow type aeration structure, interior in a limited space, in order to reduce diffusion loss and vortex
Loss does not constitute diffusion channel along entire flow channel, and passage section keeps equal.Fan blade inner passage except through
The increase of flow area generates pressure and rises outer, and full utilization centrifugal intertia force increases pressure liter, at the same blade diffusion channel not
Generating flow separation and vortex minimizes flow losses.The shape of this fan wheel disc and wheel cap is cone, makes gas edge
Inclined direction outflow not only with the centrifugal force of centrifugal fan, but also there is aerofoil fan to raise power, and the movement of air is mixed with axis stream
With two kinds of forms of motion of centrifugation.In order to improve the slickness of impeller intensity and runner, wheel cap water conservancy diversion end uses lip structure；For
Raising impeller intensity and internal leakage loss is reduced, wheel cap sealed end uses comb tooth sealing structure.Blade uses vertical element
Distortion design, makes outlet air geometry angle be equal to 90 °, is aligned with rotor axial ventilation hole.In order to reinforce disc strength, increase inside wheel disc
Add radial fins, there is cyclonic action.
The present invention has rational design, has good practical application value.
Detailed description of the invention
Fig. 1 shows mixed flow fan schematic diagram is installed in motor.
Fig. 2 a indicates mixed flow fan front schematic view.
Fig. 2 b indicates mixed flow fan schematic rear view.
Fig. 3 indicates existing aerofoil fan schematic diagram.
In figure: 1- impeller hub, 2- blade, 3- wheel cap, 3.1- wheel cap water conservancy diversion end, 3.2- wheel cap sealed end, 4- radial direction wing
Piece, 5- wheel disc, 6- rotor axial ventilation hole, 7- stator wind scooper, 8- base, 9- rotor structure, 10- shaft, 11- aerofoil fan
Impeller, 12- axial fan blade.
Specific embodiment
Specific embodiments of the present invention are described in detail with reference to the accompanying drawing.
A kind of mixed flow fan, including impeller hub 1, blade 2, wheel cap 3 and wheel disc 5.
As shown in Fig. 2 a, 2b, it is integrally equipped with wheel disc 5 outside impeller hub 1,5 surface of wheel disc takes the form of inclined plane, i.e. sheave surface
In the conical surface, the small end of wheel disc 5 is as air intake, its big end as outlet air end.Uniform intrinsic blade 2 between wheel disc 5 and wheel cap 3,
The outlet air geometry angle of blade 2 is equal to 90 °.3.1 inner surface of wheel cap water conservancy diversion end of wheel cap 3 uses lip structure, and the wheel cap of wheel cap 3 is close
3.2 outer surfaces are blocked using comb tooth sealing structure.Radial fins 4 are equipped with inside wheel disc 5.
As shown in Figure 1, a kind of motor of specific mixed flow fan, including base 8, rotor structure 9, rotor axial ventilation hole 6
And mixed flow fan is installed in shaft 10,10 end of shaft, impeller hub 1 is installed in shaft 10；Mixed flow fan uses novel mixed flow
Impeller hub 1；For blade 2 using vertical element distortion design, blade outlet air geometry angle is right with rotor axial ventilation hole 6 equal to 90 °
Together, windage loss is reduced；The wheel cap water conservancy diversion end 3.1(air intake of wheel cap 3) inner surface use lip structure, it is strong to improve impeller
The slickness of degree and runner, to reduce windage；Wheel cap sealed end 3.2(outlet air end) outer surface use comb tooth sealing structure, with
Improve impeller intensity；The comb tooth sealing structure and 7 clearance fit of stator wind scooper for being located at 8 inner wall of base, the two combine energy
Enough reduce internal leakage loss；Increase radial fins 4 inside wheel disc 5, has and reinforce disc strength and cyclonic action.
Such new mixed flow fan structure carries out verification experimental verification on company's model motor product, and test result, motor are logical
Wind heat dissipation effect is obvious, and more general aerofoil fan air quantity increases 60%, 4.XMW motor temperature rise about 67K, is particularly suitable for low turn
Speed (1200r/min), high-power air to air cooling wind-driven generator demand.
It should be pointed out that for the those skilled in the art of the art, without departing from the principle of the present invention,
Several improvement and application can also be made, these are improved and application is also considered as protection scope of the present invention.
Claims (8)
1. a kind of mixed flow fan, it is characterised in that: including impeller hub (1), blade (2), wheel cap (3) and wheel disc (5), the leaf
It takes turns wheel hub (1) exterior and is furnished with wheel disc (5), wheel disc (5) surface takes the form of inclined plane, between the wheel disc (5) and wheel cap (3) uniformly
Intrinsic blade (2).
2. mixed flow fan according to claim 1, it is characterised in that: the outlet air geometry angle of the blade (2) is equal to 90 °.
3. mixed flow fan according to claim 1 or 2, it is characterised in that: the wheel cap water conservancy diversion end (3.1) of the wheel cap (3)
Inner surface uses lip structure, and wheel cap sealed end (3.2) outer surface of the wheel cap (3) uses comb tooth sealing structure.
4. mixed flow fan according to claim 3, it is characterised in that: be equipped with radial fins (4) inside the wheel disc (5).
5. a kind of motor of specific mixed flow fan, including base (8), rotor structure (9), rotor axial ventilation hole (6) and shaft
(10), it is characterised in that: shaft (10) end is installed by mixed flow fan；The mixed flow fan includes impeller hub (1), blade
(2), wheel cap (3) and wheel disc (5), impeller hub (1) exterior are furnished with wheel disc (5), and wheel disc (5) surface takes the form of inclined plane,
Uniform intrinsic blade (2) between the wheel disc (5) and wheel cap (3).
6. the motor according to claim 5 with mixed flow fan, it is characterised in that: the outlet air geometry of the blade (2)
Angle is equal to 90 °, i.e., is aligned with rotor axial ventilation hole (6).
7. the motor according to claim 6 with mixed flow fan, it is characterised in that: the wheel cap water conservancy diversion of the wheel cap (3)
(3.1) inner surface is held to use lip structure, wheel cap sealed end (3.2) outer surface of the wheel cap (3) uses comb tooth sealing structure,
The comb tooth sealing structure and stator wind scooper (7) clearance fit for being located at base (8) inner wall.
8. the motor according to claim 7 with mixed flow fan, it is characterised in that: be equipped with diameter inside the wheel disc (5)
To fin (4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910697792.5A CN110401300A (en) | 2019-07-31 | 2019-07-31 | Mixed flow fan and motor |
| PCT/CN2019/119304 WO2021017321A1 (en) | 2019-07-31 | 2019-11-19 | Mixed flow fan and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910697792.5A CN110401300A (en) | 2019-07-31 | 2019-07-31 | Mixed flow fan and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110401300A true CN110401300A (en) | 2019-11-01 |
Family
ID=68326615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910697792.5A Pending CN110401300A (en) | 2019-07-31 | 2019-07-31 | Mixed flow fan and motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110401300A (en) |
| WO (1) | WO2021017321A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021017321A1 (en) * | 2019-07-31 | 2021-02-04 | 中车永济电机有限公司 | Mixed flow fan and motor |
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|---|---|---|---|---|
| CN203453094U (en) * | 2013-09-09 | 2014-02-26 | 株洲联诚集团有限责任公司 | Meridionally accelerated axial-flow cooling fan for electric locomotive brake resistor |
| CN104135114A (en) * | 2014-08-23 | 2014-11-05 | 永济新时速电机电器有限责任公司 | High-voltage air and water cooling doubly-fed wind driven generator |
| CN106655557A (en) * | 2016-11-29 | 2017-05-10 | 中车永济电机有限公司 | Asynchronous generator for alternating current transmission system of tractor |
| CN207246060U (en) * | 2017-08-16 | 2018-04-17 | 株洲联诚集团有限责任公司 | A kind of 200km/h electric locomotive traction motors cooling fan |
| CN108252949A (en) * | 2018-01-29 | 2018-07-06 | 广东美的厨房电器制造有限公司 | Mixed flow wind wheel and flow-mixing blower fan |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045433U (en) * | 1988-09-26 | 1989-10-04 | 上海机械学院 | Mixed-flow type fan |
| JP5023560B2 (en) * | 2006-06-05 | 2012-09-12 | 株式会社日立プラントテクノロジー | Mixed flow pump |
| CN101783555A (en) * | 2009-01-19 | 2010-07-21 | 江门金羚电机有限公司 | Small-power motor with internal air-cooling system |
| CN103321923A (en) * | 2012-12-14 | 2013-09-25 | 上海冠带通风节能设备有限公司 | Mixed flow blower |
| CN110401300A (en) * | 2019-07-31 | 2019-11-01 | 中车永济电机有限公司 | Mixed flow fan and motor |
-
2019
- 2019-07-31 CN CN201910697792.5A patent/CN110401300A/en active Pending
- 2019-11-19 WO PCT/CN2019/119304 patent/WO2021017321A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203453094U (en) * | 2013-09-09 | 2014-02-26 | 株洲联诚集团有限责任公司 | Meridionally accelerated axial-flow cooling fan for electric locomotive brake resistor |
| CN104135114A (en) * | 2014-08-23 | 2014-11-05 | 永济新时速电机电器有限责任公司 | High-voltage air and water cooling doubly-fed wind driven generator |
| CN106655557A (en) * | 2016-11-29 | 2017-05-10 | 中车永济电机有限公司 | Asynchronous generator for alternating current transmission system of tractor |
| CN207246060U (en) * | 2017-08-16 | 2018-04-17 | 株洲联诚集团有限责任公司 | A kind of 200km/h electric locomotive traction motors cooling fan |
| CN108252949A (en) * | 2018-01-29 | 2018-07-06 | 广东美的厨房电器制造有限公司 | Mixed flow wind wheel and flow-mixing blower fan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021017321A1 (en) * | 2019-07-31 | 2021-02-04 | 中车永济电机有限公司 | Mixed flow fan and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021017321A1 (en) | 2021-02-04 |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191101 |
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| RJ01 | Rejection of invention patent application after publication |