CN104343706B - Axial flow fan for brushless direct-current external rotor electric machine - Google Patents
Axial flow fan for brushless direct-current external rotor electric machine Download PDFInfo
- Publication number
- CN104343706B CN104343706B CN201410573211.4A CN201410573211A CN104343706B CN 104343706 B CN104343706 B CN 104343706B CN 201410573211 A CN201410573211 A CN 201410573211A CN 104343706 B CN104343706 B CN 104343706B
- Authority
- CN
- China
- Prior art keywords
- blade
- housing
- face
- wind
- electric machine
- 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
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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
-
- 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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
Abstract
The invention relates to an axial flow fan for a brushless direct-current external rotor electric machine. The axial flow fan comprises a central hub and a plurality of blades, wherein one end of each blade is connected with the central hub and the blades are radial; an included angle is formed between each blade and the rotating plane of the blade; the central hub comprises a cylindrical housing; an opening is formed in one end of the housing, and an air guide end face is arranged at the other end of the housing; one end of each blade is fixedly connected with the outer circumferential surface of the housing; through holes communicated with the interior of the housing are uniformly formed in the air guide end face; a plurality of radiation ribs are arranged on the inner surface of the housing and extend radially from the center of the air guide end face to the opening of the housing along the inner surface of the housing. The axial flow fan disclosed by the invention is good in air guide performance, low in working noise, and excellent in heat dissipation performance.
Description
Technical field
The present invention relates to a kind of axial flow blower, particularly to a kind of brushless direct-current external rotor electric machine aerofoil fan.
Background technology
Blower fan is the mechanical energy relying on input, improves gas pressure and supplies gas side by side the machinery of body, and it is a kind of to provide kinetic energy
Machinery.Blower fan generally comprises center hub and multiple blade, because blower fan is the axial direction relying on the machinery of motor to enable air-flow
How motion, therefore in the course of the work, improve the heat dispersion of motor, be also to increase service life and the continuous firing of blower fan
The key of ability.
Content of the invention
It is an object of the invention to provide a kind of guide performance is good, operating noise is little, outside the exsertile brushless direct-current of thermal diffusivity
Rotor electric machine aerofoil fan.
The technical scheme realizing the object of the invention is：The present invention includes center hub and multiple blade, one end of each blade
All it is connected with center hub and radial；Angle is carried between each blade described and its rotational plane；Described center hub includes
Cylindrical housing, one end of housing is opening, and the other end is provided with wind-guiding end face；One end of described blade is fixedly connected on housing
Outer circumference surface on；It is evenly equipped with, on described wind-guiding end face, the through hole connecting with enclosure interior；The inner surface of described housing is provided with
A plurality of from wind-guiding end face centrally along housing the radiating ribs that extend radially to the opening of housing of inner surface.
Above-mentioned blade has first side and second side, and near wind-guiding end face, second side is near housing for first side
Opening；The bar number of described radiating ribs is equal with the number of blade, and every radiating ribs are all relative with the second side of a blade
Should.
It is located on above-mentioned wind-guiding end face and be equipped with a through hole between radiating ribs.
Above-mentioned wind-guiding end face is in circular cone shape；Described through hole is distributed in vertical with rotation axiss plane on wind-guiding end face
On.
As deformation, above-mentioned wind-guiding end face is in circular cone shape；Described through hole is distributed in and is hung down with rotation axiss on wind-guiding end face
In straight plane.
As optimization, above-mentioned brushless direct-current external rotor electric machine axial flow blower and flabellum also include a circular surrounding edge；
Described blade is arranged between surrounding edge and center hub, and one end of blade is fixedly connected with center hub, and the other end is fixing with surrounding edge even
Connect.
The first side of each blade above-mentioned and the junction of surrounding edge are equipped with the power extending to surrounding edge from first side
Piece；Described power piece is triangular in shape, and its a line is connected with surrounding edge, and another a line is connected with the part of surrounding edge close on first side
Connect；Described power piece forms angle with the rotational plane of blade；Described power piece is big with the angle of the rotational plane formation of blade
In 0 °, less than or equal to 3 °.
Above-mentioned center hub, blade, surrounding edge and power piece are integrated moulding.
As optimization, above-mentioned brushless direct-current external rotor electric machine axial flow blower and flabellum also include a guard；Described net
Cover includes cylinder and clamping ring, and one end of cylinder is opening；Described surrounding edge rotates and is sleeved in the cylinder of guard；Described connection
Circle is fixedly installed on the outer circumference surface of cylinder and coaxial with cylinder；On described clamping ring, stationary annular is provided with connecting hole in column.
The present invention has positive effect：(1) present invention is provided with wind-guiding end face, and wind-guiding end face is provided with through hole, center
The inside of hub is provided with radiating ribs, and when fan is operated, because motor is contained in the housing of center hub, the rotation of center hub makes
Obtain the effect that radiating ribs play fan, is further radiated in motor surface；(2) radiating ribs in the present invention are except radiating
Function moreover it is possible to strengthen center hub structural strength；(3) the wind-guiding end face of the present invention is in circular cone shape, has good wind-guiding
Effect, reduces operating noise；(4) blade, center hub and surrounding edge are designed to integral piece by the present invention, improve the globality of fan；
(5) the power piece of present invention design can reduce operating noise further；(6) guard of present invention setting is so that structure is more steady
Fixed, running effect is more preferable.
Brief description
In order that present disclosure is easier to be clearly understood, below according to specific embodiment and combine accompanying drawing, right
The present invention is described in further detail, wherein
Fig. 1 is the main parallax stereogram of the embodiment of the present invention one；
Fig. 2 is the front view of the embodiment of the present invention one
Fig. 3 is the rear perspective view of the embodiment of the present invention one；
Fig. 4 is the rearview of the embodiment of the present invention one；
Fig. 5 is the structural representation of the embodiment of the present invention two；
Fig. 6 is the front view of the embodiment of the present invention two；
Fig. 7 is the side view of the embodiment of the present invention three.
Specific embodiment
(embodiment one)
See Fig. 1 to Fig. 4, the present invention includes center hub 1 and multiple blade 2, and one end of each blade 2 is all with center hub 1 even
Connect and radial；Described between each blade 2 and its rotational plane carry angle；Described center hub 1 includes the shell of cylinder
Body 11, one end of housing 11 is opening, and the other end is provided with the wind-guiding end face 12 of circular cone shape；One end of described blade 2 is fixing even
It is connected on the outer circumference surface of housing 11；The through hole 13 that connect internal with housing 11 is evenly equipped with described wind-guiding end face 12；Described shell
The inner surface of body 11 be provided with a plurality of from wind-guiding end face 12 centrally along housing 11 opening from inner surface to housing 11 be in radiation
The radiating ribs 14 that shape extends；Described blade 2 has first side 21 and second side 22, and first side 21 is near wind-guiding end face
12, second side 22 is near the opening of housing 11；The bar number of described radiating ribs 14 is equal with the number of blade 2, every radiating ribs
14 is all corresponding with the second side 22 of a blade 2；Described through hole 13 is distributed in vertical with rotation axiss on wind-guiding end face 12
Plane on, and between radiating ribs 14, be provided only with a through hole 13.
Said fans also include a circular surrounding edge 3；Described blade 2 is arranged between surrounding edge 2 and center hub 1, blade 2
One end be fixedly connected with center hub 1, the other end is fixedly connected with surrounding edge 3；The first side 21 of each blade 2 described and surrounding edge
3 junction is equipped with the power piece 4 extending to surrounding edge 3 from first side 21；Described power piece 4 is triangular in shape, its a line
It is connected with surrounding edge 3, another a line is connected with the part near surrounding edge 3 on first side 21；Described power piece 4 is turned with blade 2
Dynamic plane forms 1 ° of angle；Described center hub 1, blade 2, surrounding edge 3 and power piece 4 are integrated moulding.
(embodiment two)
See Fig. 5 and Fig. 6, the present invention, in addition to having the architectural feature as described in embodiment one, also has a guard
5；Described guard 5 includes cylinder 51 and clamping ring 52, and one end of cylinder 51 is opening；Described surrounding edge 3 rotates and is sleeved on guard 5
Cylinder 51 in interior；Described clamping ring 52 is fixedly installed on the outer circumference surface of cylinder 51 and coaxial with cylinder 51；Described connection
On circle 52, stationary annular is provided with connecting hole in column.
(embodiment three)
See Fig. 7, the center hub 1 of the present invention includes the housing 11 of cylinder, and one end of housing 11 is opening, and the other end is provided with
Columned wind-guiding end face 12, other technical characteristics are identical with the architectural feature described in embodiment two.
(example IV)
In the present invention, the rotational plane of power piece 4 and blade 2 forms 3 ° of angle, in other technical characteristics and embodiment three
Described architectural feature is identical.
Particular embodiments described above, has carried out detailed further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail bright, be should be understood that the specific embodiment that the foregoing is only the present invention, be not limited to the present invention, all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement done etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (7)
1. a kind of brushless direct-current external rotor electric machine aerofoil fan, including center hub (1) and multiple blade (2), each blade (2)
One end be all connected and radial with center hub (1)；Angle is carried between described each blade (2) and its rotational plane；Its
It is characterised by：Also include a circular surrounding edge (3)；Described center hub (1) includes cylindrical housing (11), housing (11)
One end is opening, and the other end is provided with wind-guiding end face (12)；Described blade (2) is arranged between surrounding edge (3) and center hub (1)；Institute
The one end stating blade (2) is fixedly connected on the outer circumference surface of housing (11), and the other end is fixedly connected with surrounding edge (3)；Described lead
The through hole (13) being evenly equipped with wind end face (12) and connecting inside housing (11)；The inner surface of described housing (11) is provided with a plurality of
From wind-guiding end face (12) centrally along housing (11) the radiating ribs that extend radially to the opening of housing (11) of inner surface
(14)；
Described blade (2) has first side (21) and second side (22), first side (21) close wind-guiding end face (12), the
Dual side-edge (22) is near the opening of housing (11)；The first side (21) of described each blade (2) is equal with the junction of surrounding edge (3)
It is provided with the power piece (4) extending to surrounding edge (3) from first side (21)；Described power piece (4) is triangular in shape, its a line with enclose
Side (3) connects, and another a line part near surrounding edge (3) upper with first side (21) is connected；Described power piece (4) and blade
(2) rotational plane forms angle；Described power piece (4) is more than 0 ° with the angle of the rotational plane formation of blade (2), less than etc.
In 3 °.
2. brushless direct-current external rotor electric machine aerofoil fan according to claim 1 it is characterised in that：Described radiating ribs
(14) bar number is equal with the number of blade (2), and every radiating ribs (14) is all relative with the second side (22) of a blade (2)
Should.
3. brushless direct-current external rotor electric machine aerofoil fan according to claim 2 it is characterised in that：Described wind-guiding end face
(12) upper being located at is equipped with a through hole (13) between radiating ribs (14).
4. brushless direct-current external rotor electric machine aerofoil fan according to claim 3 it is characterised in that：Described wind-guiding end face
(12) it is in circular cone shape；Described through hole (13) is distributed in the upper plane vertical with rotation axiss of wind-guiding end face (12).
5. brushless direct-current external rotor electric machine aerofoil fan according to claim 3 it is characterised in that：Described wind-guiding end face
(12) cylindrical；Described through hole (13) is distributed in the upper plane vertical with rotation axiss of wind-guiding end face (12).
6. the brushless direct-current external rotor electric machine aerofoil fan according to claim 4 or 5 it is characterised in that：Described center
Hub (1), blade (2), surrounding edge (3) and power piece (4) are integrated moulding.
7. according to brushless direct-current external rotor electric machine aerofoil fan described in one of them for the claim 6 it is characterised in that：Also wrap
Include a guard (5)；Described guard (5) includes cylinder (51) and clamping ring (52), and one end of cylinder (51) is opening；Described
Surrounding edge (3) rotates in the cylinder (51) being sleeved on guard (5)；Described clamping ring (52) is fixedly installed on the excircle of cylinder (51)
On face and coaxial with cylinder (51)；The upper stationary annular of described clamping ring (52) is provided with connecting hole in column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410573211.4A CN104343706B (en) | 2014-10-23 | 2014-10-23 | Axial flow fan for brushless direct-current external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410573211.4A CN104343706B (en) | 2014-10-23 | 2014-10-23 | Axial flow fan for brushless direct-current external rotor electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104343706A CN104343706A (en) | 2015-02-11 |
| CN104343706B true CN104343706B (en) | 2017-02-15 |
Family
ID=52499997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410573211.4A Active CN104343706B (en) | 2014-10-23 | 2014-10-23 | Axial flow fan for brushless direct-current external rotor electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104343706B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257594A (en) * | 2015-10-26 | 2016-01-20 | 杭州微光电子股份有限公司 | Outer rotor axial flow fan impeller device with cooling structure |
| CN105407692B (en) * | 2015-12-14 | 2018-12-14 | 联想(北京)有限公司 | A kind of radiator and electronic equipment |
| CN105822590A (en) * | 2016-03-21 | 2016-08-03 | 吴海 | Fan blade with outer enclosure protection function and fan using fan blade |
| CN107542686B (en) * | 2017-06-15 | 2020-07-14 | 新华三技术有限公司 | Fan and electronic equipment |
| CN108397404B (en) * | 2018-02-23 | 2020-05-22 | 杭州微光电子股份有限公司 | Axial flow fan and ventilation and heat dissipation equipment |
| TWI670421B (en) * | 2018-08-14 | 2019-09-01 | 建準電機工業股份有限公司 | Fan wheel |
| CN112421881B (en) * | 2020-11-02 | 2021-09-07 | 合肥珺安机电设备有限公司 | External rotor electric machine with heat dissipation function |
| CN113520216A (en) * | 2021-05-31 | 2021-10-22 | 黎巍 | Direct-suction type dust collector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040013526A1 (en) * | 2002-07-17 | 2004-01-22 | Hayes Cooling Technologies, Llc | Ring cooling fan including stiffening ribs fully connected on at most two sides |
| ITBO20040047A1 (en) * | 2004-02-03 | 2004-05-03 | Spal Srl | AXIAL FAN |
| CN101691874A (en) * | 2009-07-14 | 2010-04-07 | 广东顺威精密塑料股份有限公司 | Axial flow wind wheel with improved blades |
| US8091177B2 (en) * | 2010-05-13 | 2012-01-10 | Robert Bosch Gmbh | Axial-flow fan |
| CN204267319U (en) * | 2014-10-23 | 2015-04-15 | 常州祥明电机有限公司 | Brushless direct-current external rotor electric machine axial fan |
-
2014
- 2014-10-23 CN CN201410573211.4A patent/CN104343706B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104343706A (en) | 2015-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104343706B (en) | Axial flow fan for brushless direct-current external rotor electric machine | |
| JP2014058966A (en) | Fan module for heat exchanger | |
| CN102332782B (en) | Air cooling device of servo motor | |
| US9716420B2 (en) | Fan and electric machine assembly and methods therefor | |
| KR101342746B1 (en) | Cooling fan | |
| EP3109484B1 (en) | Air-blowing device | |
| CN207968158U (en) | A kind of motor with uniformly distributed ventilated type protective roof structure | |
| CN204267319U (en) | Brushless direct-current external rotor electric machine axial fan | |
| US10458417B2 (en) | Centrifugal fan with axial-flow wind | |
| CN103603817B (en) | Middle drum pressure blower fan | |
| CN203761202U (en) | Motor with heat radiating device | |
| CN112460049A (en) | Integrated axial flow fan | |
| CN108343582A (en) | A kind of horizontally-opposed air-cooled vacuum pump of four cylinders | |
| CN202520643U (en) | Culvert blade with cooling air ring | |
| CN209072171U (en) | A kind of motor | |
| CN104965575A (en) | Siphon CPU heat dissipation device | |
| CN205911899U (en) | Heat radiation structure of motor | |
| JP2011223804A (en) | Rotary device | |
| CN102957254B (en) | Generator front housing | |
| US10376119B2 (en) | Steam cleaner | |
| CN204790807U (en) | Hydrocone type CPU heat abstractor | |
| CN204610371U (en) | The motor of a kind of motor blower fan and application thereof | |
| CN210201641U (en) | Motor heat radiation structure | |
| CN210118279U (en) | Fan blade, fan assembly, air duct component and air conditioner | |
| CN209430492U (en) | A kind of hot water pump bearing body air-cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 213011 No. 518 Wu Cheng Road, Changzhou, Jiangsu Applicant after: Changzhou Xiangming Electromotor Co., Ltd. Address before: 213011 No. 518 Wu Cheng Road, Changzhou, Jiangsu Applicant before: Changzhou Xiangxing Electric Machine Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |