CN203743064U - Cooling fan - Google Patents
Cooling fan Download PDFInfo
- Publication number
- CN203743064U CN203743064U CN201420062741.8U CN201420062741U CN203743064U CN 203743064 U CN203743064 U CN 203743064U CN 201420062741 U CN201420062741 U CN 201420062741U CN 203743064 U CN203743064 U CN 203743064U
- Authority
- CN
- China
- Prior art keywords
- rotation blade
- cooling fan
- blade
- main rotation
- rotation
- 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.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 47
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012795 verification 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
- F04D29/32—Rotors specially for elastic fluids for axial flow 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
-
- 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
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/682—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid extraction
-
- 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
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/684—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid injection
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a cooling fan which comprises a cylindrical hub, a plurality of main rotating blades and a plurality of auxiliary rotating blades. The hub is combined with a drive shaft of a drive motor, the main rotating blades are arranged on the peripheral face of the hub in a radial mode and combined, and one auxiliary rotating blade is arranged between every two main rotating blades and combined with the peripheral face of the hub. The cooling fan is characterized in that each main rotating blade is provided with a removed part with the portion close to the hub side removed, and the size of each auxiliary rotating blade is smaller than that of each main rotating blade.
Description
Technical field
The utility model relates to a kind of cooling fan, relate in more detail by the little auxiliary rotation blade that is radial arrangement the removed multiple main rotation blades of a part and be configured between this each main rotation blade centered by running shaft and forming, thereby no matter be the cooling fan that outside or medial side also can form certain air quantity generally.
Background technique
Cooling fan is made up of wheel hub and the rotation blade that is radial arrangement combination on the outer circumferential face of wheel hub, thereby produces Air Flow in rotation, produces wind.Inside at wheel hub possesses motor, and this motor is fixed on framework.
Cooling fan is arranged on as in the electronic equipment of computer, uses as the hot purposes of the mobile and cooling in-built various heating component of the force air for making periphery.
The rotation blade that existing cooling fan possesses be part from being combined with wheel hub when extending along radial direction width broaden gradually or be certain shape.This existing cooling fan, in the time needing cooling heat more, in order to produce stronger wind, uses the cooling fan that comprises larger rotation blade or the rotational speed that increases rotation blade.
But owing to being generally defined for the space that cooling fan is installed, length and the width therefore with increase rotation blade are limited problems.In addition, if increase rotational speed, have and significantly increase noise, and the electric weight problem that also can increase consuming.High Rotation Speed also has the shortcoming that shortens the cooling fan life-span.
In addition, existing cooling fan due to be subject to from wheel hub away from time the width rotation blade that broadens gradually the restriction of shape, there is the mobile few problem at the central part air near wheel hub.
In order to address this is that, in the prior art of part, attempt after the central part of rotation blade is guaranteed space, in this space, additionally possess the structure of other little rotation blade, but this prior art have complex structure and also inadequate problem of effect.
Patent documentation 1: No. 10-2010-0004740th, Korea S's publication communique
Model utility content
The utility model proposes in order to address the above problem, its object is to provide a kind of cooling fan, this cooling fan is possessing auxiliary rotation blade near between the removed main rotation blade of a part of hub side, no matter also can produce sufficient Air Flow at the external lateral portion of rotation blade or at the central part near wheel hub.
Cooling fan of the present utility model is characterised in that, comprising: the wheel hub of drum, be combined with the live axle of drive motor; Multiple main rotation blades are radial arrangement combination on the outer circumferential face of described wheel hub; And multiple auxiliary rotation blades, be configured between each described main rotation blade and with the outer circumferential face of described wheel hub and be combined, described in each, main rotation blade possesses the removed removal of the part portion near described hub side, and described in each, auxiliary rotation blade is less than the size of described main rotation blade.
Cooling fan of the present utility model, owing to possessing multiple main rotation blades and multiple auxiliary rotation blade, therefore can obtain external lateral portion or all sufficient effects of the air flow amount of inner side part.
In addition, cooling fan of the present utility model, compared with producing the existing cooling fan of equal Air Flow, can obtain the effect that overall diameter is relatively little.In addition,, compared with producing the existing cooling fan of Air Flow of same amount, can obtain the effect that noise is also little.
Brief description of the drawings
Fig. 1 is the stereogram of an embodiment's of the present utility model cooling fan.
Fig. 2 is the stereogram from the cooling fan of beneath Fig. 1.
Fig. 3 is the plan view of the cooling fan of Fig. 1.
Fig. 4 is the plan view of observing the cooling fan of Fig. 1 from top.
Fig. 5 is the figure that the cooling fan that exemplifies Fig. 1 possesses framework.
Description of reference numerals
1 cooling fan 10 wheel hubs
20 main rotation blade 22 removal portions
30 auxiliary main rotation blade 40 frameworks
Embodiment
With reference to accompanying drawing, an embodiment's of the present utility model cooling fan 1 is described.
The cooling fan 1 of the present embodiment possesses main rotation blade 20 and auxiliary rotation blade 30 centered by wheel hub 10, it is characterized in that, including central part, can produce certain generally air quantity.In addition, cooling fan 1 comprises that framework 40(is with reference to Fig. 5) and drive motor (not shown) and forming.But, be suitable for existing technology for framework and drive motor, omit its further instruction.
Described wheel hub 10 is the parts cylindraceous of being combined with the live axle of drive motor.Wheel hub 10 possesses as the outer circumferential face 11 of side and upper surface 12, and is the drum that lower surface is opened.With reference to the Fig. 2 from beneath cooling fan 1, possesses the cylindrical member 14 by running shaft C at wheel hub 10 center.
Described main rotation blade 20 is multiple, and is radial arrangement combination on the outer circumferential face 11 of wheel hub 10.In Fig. 1 main rotation blade 20 and auxiliary rotation blade 30 centered by running shaft C in the counterclockwise direction rotation and from above produce downwards air flow.Mean in this what is called " top " wheel hub 10 in Fig. 1 upper surface 12 above.
Each main rotation blade 20 possesses removal portion 22.Removal portion 22 means the removed space of a part of the close hub side that is positioned at center in main rotation blade 20.In the present embodiment, removal portion 22 is positioned at the rear of the sense of rotation of corresponding main rotation blade 20.
That is, with reference to the Fig. 4 as observe the plan view of the cooling fan of Fig. 1 from top, cooling fan is rotation in the counterclockwise direction centered by running shaft C, and removal portion 22 is positioned at rear instead of the front of sense of rotation.
With reference to Fig. 4, in the present embodiment, the length of removal portion 22 be main rotation blade 20 radial direction length L 1 approximately 1/2, removal portion 22 is main rotation blade 20 in approximately 1/2 of the width W 1 of radial direction at the width of sense of rotation.In addition, be to be about as much as 1/2 in the half of length instead of strict mathematical meaning in the implication of the value of this " 1/2 ".
In hypothesis, by main rotation blade 20 being divided into four parts by the dotted line at center separately with sense of rotation along its length, removal portion 22 is the part of having removed close center and be positioned at the rear of sense of rotation in this divided part.
In addition, according to embodiment, can also be approximately more than 1/3 and below 2/3 of the removal portion radial direction length L 1 that is main rotation blade in the length of radial direction, removal portion be width W 1 approximately more than 1/3 and 2/3 below of main rotation blade in radial direction at the width of sense of rotation.That is, removal portion can also be configured to its length be equivalent to main rotation blade length 33% to 66%, its width is equivalent to 33% to 66% left and right of the width of main rotation blade.
Described auxiliary rotation blade 30 is multiple, and is configured between each main rotation blade 20, and with outer circumferential face 11 combinations of wheel hub 10.Owing to disposing an auxiliary rotation blade 30 in each main rotation blade 20, therefore identical with the number of main rotation blade 20.Each auxiliary rotation blade 30 is less than the size of main rotation blade 20.Mean the area based on length and width in this " size ".
In the present embodiment, auxiliary rotation blade 30 in the length L 2 of radial direction be main rotation blade 20 radial direction length L 1 approximately 1/2, the sense of rotation width W 2 of auxiliary rotation blade 30 be configured to main rotation blade 20 sense of rotation width W 1 approximately 1/2.In fact, each length and width are slightly less than 2/1 of main rotation blade.
In addition, according to embodiment, can also be approximately more than 1/3 and below 2/3 of the auxiliary rotation blade radial direction length L 1 that is main rotation blade in the length of radial direction, auxiliary rotation blade be width W 1 approximately more than 1/3 and 2/3 below of main rotation blade in radial direction at the width of sense of rotation.That is, auxiliary rotation blade can also be configured to its length be equivalent to main rotation blade length 33% to 66%, its width is equivalent to 33% to 66% left and right of the width of main rotation blade.
In addition, arrive according to experimental verification, if possess as the removal portion 22 of the size of the present embodiment and auxiliary rotation blade 30, while considering distribution and the noise level etc. of air quantity, become best state.
In the present embodiment, observe main rotation blade 20 from running shaft C direction in the situation that, described auxiliary rotation blade 30 is configured in the removal portion 22 of main rotation blade 20.The illustrated shape the plan view of Fig. 4 that is shaped as of observing main rotation blade 20 from running shaft C direction.Although main rotation blade 20 and auxiliary rotation blade 30 are to tilt with surface of revolution perpendicular to running shaft C and the shape of distortion, but in the time observing these from plan view, can confirm corresponding auxiliary rotation blade 30 and the space being provided by the removal portion 22 of each main rotation blade 20 is provided and does not overlap each other and be separated by.Owing to possessing this structure, when use mould manufacture to be formed by wheel hub 10, main rotation blade 20 and auxiliary rotation blade 30 cooling fan time, can remove simply along the vertical direction mould, therefore possess the advantage that can realize high manufacturing efficiency.
In addition, in the present embodiment, the angle that auxiliary rotation blade 30 and the surface of revolution perpendicular to running shaft C form is greater than the angle of main rotation blade 20 and described surface of revolution formation.So-called surface of revolution refers to the face that the blade of rotation forms, and is and parallel plane of upper surface 12 who comprises wheel hub 10.
With reference to Fig. 3, auxiliary rotation blade 30 is combined into the value with the angle A 1 of surface of revolution formation with the angle A 1 that is greater than main rotation blade 20 and surface of revolution formation., auxiliary rotation blade 40 is combined into and compares main rotation blade 20 and more tilt.Owing to possessing this structure, can increase flowing of air that the auxiliary rotation blade of relatively little size can produce.
It is general in the situation that rotation blade is further tilted, increase flowing of air, but understand resistance and produce noise, but in the utility model because the size of auxiliary rotation blade is relatively little, therefore can not produce alarming noise, and produce flowing of gratifying air at the weak core of amount of flow in the past.
Have the following advantages according to cooling fan 1 tool of said structure: no matter also all produce flowing of gratifying air at central part in outside, finally form on the whole certain air quantity at cooling fan.This is to have overcome existing cooling fan to form shortcoming weak or that form hardly at the Air Flow of central part.
This advantage is to possess a part of removed removal portion by the central part side at main rotation blade, and can obtain at the auxiliary rotation blade of the space of removal portion configuration.In addition,, in the situation that making auxiliary rotation blade be configured to compare main rotation blade with respect to surface of revolution further to tilt, this effect is more remarkable.
In addition,, owing to possessing removal portion and auxiliary rotation blade, therefore, compared with obtaining the needed existing cooling fan of air quantity of similar degree, there is the life-span that noise is little and can extend cooling fan.
In addition, when observing main rotation blade and auxiliary rotation blade from plan view, be configured to the part not overlapping each other, therefore in the production that utilizes mould, have advantages of and can realize high manufacturing efficiency and production.
The embodiment that the utility model shows with reference to picture in picture is illustrated, but this is only example of the present utility model, the utility model person of ordinary skill in the field will be understood that based on above-described embodiment and can carry out various distortion and implement the embodiment that other are equal to.Therefore, the real technical protection scope of the utility model should be determined by the technological thought of appending claims.
Claims (6)
1. a cooling fan, is characterized in that, comprising:
The wheel hub of drum, is combined with the live axle of drive motor;
Multiple main rotation blades are radial arrangement combination on the outer circumferential face of described wheel hub; And
Multiple auxiliary rotation blades, are configured between each described main rotation blade and with the outer circumferential face of described wheel hub and are combined,
Described in each, main rotation blade possesses the removed removal of the part portion near described hub side,
Described in each, auxiliary rotation blade is less than the size of described main rotation blade.
2. cooling fan according to claim 1, is characterized in that,
Described removal portion is positioned at the rear of the sense of rotation of described main rotation blade,
The radial direction length of described removal portion is length more than 1/3 and 2/3 below of described main rotation blade in radial direction,
The sense of rotation width of described removal portion is width more than 1/3 and 2/3 below of described main rotation blade in sense of rotation.
3. cooling fan according to claim 2, is characterized in that,
While observing described main rotation blade from running shaft direction, described auxiliary rotation blade is positioned at the removal portion of described main rotation blade, and is configured to not overlap each other.
4. cooling fan according to claim 2, is characterized in that,
Described auxiliary rotation blade is length more than 1/3 and 2/3 below of described main rotation blade in radial direction in the length of radial direction,
Described auxiliary rotation blade is width more than 1/3 and 2/3 below of described main rotation blade in sense of rotation at the width of sense of rotation.
5. cooling fan according to claim 4, is characterized in that,
Described removal portion is described main rotation blade in 1/2 of the length of radial direction in the length of radial direction,
Described removal portion is described main rotation blade at 1/2 of the width of sense of rotation at the width of sense of rotation,
Described auxiliary rotation blade is described main rotation blade in 1/2 of the length of radial direction in the length of radial direction,
Described auxiliary rotation blade is described main rotation blade at 1/2 of the width of sense of rotation at the width of sense of rotation.
6. cooling fan according to claim 2, is characterized in that,
Described auxiliary rotation blade and the angle forming perpendicular to the surface of revolution of running shaft are greater than the angle of described main rotation blade and the formation of described surface of revolution.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2013-0027689 | 2013-03-15 | ||
| KR1020130027689A KR101342746B1 (en) | 2013-03-15 | 2013-03-15 | Cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743064U true CN203743064U (en) | 2014-07-30 |
Family
ID=49988592
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410048521.4A Active CN104047893B (en) | 2013-03-15 | 2014-02-12 | Cooling fan |
| CN201420062741.8U Expired - Lifetime CN203743064U (en) | 2013-03-15 | 2014-02-12 | Cooling fan |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410048521.4A Active CN104047893B (en) | 2013-03-15 | 2014-02-12 | Cooling fan |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101342746B1 (en) |
| CN (2) | CN104047893B (en) |
| WO (1) | WO2014142443A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047893A (en) * | 2013-03-15 | 2014-09-17 | 扎尔曼技术株式会社 | Cooling fan |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101760716B1 (en) * | 2016-10-19 | 2017-07-24 | 주식회사 한미마이크로닉스 | Cooler fan having variable blade |
| CN109863673B (en) * | 2016-11-02 | 2021-10-15 | 三菱电机株式会社 | Rotor of AC generator for vehicle |
| JP6583397B2 (en) * | 2017-12-05 | 2019-10-02 | 株式会社富士通ゼネラル | Propeller fan |
| CN110118196B (en) * | 2018-02-07 | 2024-03-26 | 广东美的制冷设备有限公司 | Axial flow wind wheel and air conditioner |
| JP6696525B2 (en) * | 2018-03-22 | 2020-05-20 | 株式会社富士通ゼネラル | Propeller fan |
| JP7088309B2 (en) * | 2018-11-30 | 2022-06-21 | 株式会社富士通ゼネラル | Propeller fan |
| US11313377B2 (en) | 2018-11-30 | 2022-04-26 | Fujitsu General Limited | Propeller fan |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04127896U (en) * | 1990-11-06 | 1992-11-20 | 大井 常守 | Separate type cold air fan with movable rotor blades |
| JPH06264897A (en) * | 1993-03-11 | 1994-09-20 | Yamaha Motor Co Ltd | Axial flow fan |
| KR20040041956A (en) * | 2002-11-12 | 2004-05-20 | 엘지전자 주식회사 | Axial flow fan |
| CN101666328B (en) * | 2008-09-05 | 2012-09-19 | 富准精密工业(深圳)有限公司 | Radiating device and fan impeller thereof |
| KR20100122360A (en) * | 2009-05-12 | 2010-11-22 | 김동진 | Rotating body having rotor blades |
| KR101342746B1 (en) * | 2013-03-15 | 2013-12-19 | 윤국영 | Cooling fan |
-
2013
- 2013-03-15 KR KR1020130027689A patent/KR101342746B1/en active IP Right Grant
-
2014
- 2014-02-07 WO PCT/KR2014/001046 patent/WO2014142443A1/en active Application Filing
- 2014-02-12 CN CN201410048521.4A patent/CN104047893B/en active Active
- 2014-02-12 CN CN201420062741.8U patent/CN203743064U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047893A (en) * | 2013-03-15 | 2014-09-17 | 扎尔曼技术株式会社 | Cooling fan |
| CN104047893B (en) * | 2013-03-15 | 2016-11-23 | 扎尔曼技术株式会社 | Cooling fan |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014142443A1 (en) | 2014-09-18 |
| CN104047893A (en) | 2014-09-17 |
| KR101342746B1 (en) | 2013-12-19 |
| CN104047893B (en) | 2016-11-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |