CN104564732A - Thinned fan - Google Patents
Thinned fan Download PDFInfo
- Publication number
- CN104564732A CN104564732A CN201310502563.6A CN201310502563A CN104564732A CN 104564732 A CN104564732 A CN 104564732A CN 201310502563 A CN201310502563 A CN 201310502563A CN 104564732 A CN104564732 A CN 104564732A
- Authority
- CN
- China
- Prior art keywords
- magnetic part
- bearing
- thin fan
- rotating shaft
- thin
- 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.)
- Granted
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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
- 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
- F04D25/062—Details of the bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A thinned fan comprises an impeller and a motor, the impeller comprises a hub and a blade structure, and the blade structure surrounds the hub. The motor comprises a stator structure, a magnetic component, a bearing structure and a rotating shaft; the magnetic component is positioned on the inner side of the hub and annularly provided with the stator structure and comprises a magnet and a magnetism guide shell; the bearing structure comprises a bearing seat and a single ball bearing, and the single ball bearing is arranged in the bearing seat to form a storage space; the rotating shaft is clamped in the storage space. The thinned fan has the advantages that by arrangement of the single ball bearing and reduction of integral components of the thinned fan, integral height of the thinned fan is reduced to be smaller than 5mm, so that thinning is realized.
Description
Technical field
The invention relates to fan structure, be particularly to a kind of thin fan.
Background technique
Along with the trend of various electronic equipment slimming development, in order to coordinate electronic equipment, fan structure also will develop towards slimming.
Please refer to Fig. 1, for known fan structure generalized section, known fan structure 1 at least comprises bearing housing 10, stator structure 11, rotor structure 12 containing blade, bearing 13a, 13b, spring 14 and clasp 15.Respectively arrange in pairs or groups two bearings 13a, 13b in the both sides that known fan structure more than 1 is used in bearing housing 10, and configure a clasp 15 with fixed rotor structure 12.And many at least two springs 14 that can configure in the upper end of bearing housing 10, to provide required precompression.But known fan structure 1, when basic building block cannot reduce, is difficult to the target realizing the height H of known fan structure 1 being reduced to less than 5 millimeters.
Therefore, how providing a kind of assembly less and can reach the thin fan of slimming object, is one of related domain problem needing solution badly.
Summary of the invention
Because above-mentioned problem, main purpose of the present invention is to provide a kind of thin fan reaching slimming object.
For reaching above-mentioned purpose, according to thin fan of the present invention, comprise impeller and motor.
Impeller has wheel hub and blade structure, and blade structure is arranged around wheel hub, and wherein wheel hub comprises shaft, and shaft is tube-in-tube structure.
Motor then comprises stator structure, magnet assembly, bearing structure and rotating shaft, and motor drives impeller is rotated, and magnet assembly is positioned at the inner side of wheel hub and ring sets substructure.Magnet assembly comprises magnet and magnetic conduction shell.Bearing structure comprises bearing support and single ball bearing, and single ball bearing is arranged at bearing support and forms a containing space, and aforementioned containing space established by rotating shaft card.
In a preferred embodiment of the present invention, more comprise the side that at least one magnetic part is arranged at bearing support, to attract bearing structure.
In a preferred embodiment of the present invention, magnetic part attracts an inner ring of the single ball bearing of bearing structure.
In a preferred embodiment of the present invention, at least one magnetic part comprises the first magnetic part, and corresponding shaft bearing structure is arranged.Wherein, thin fan more comprises base plate.Motor, impeller are sequentially arranged on base plate, and base plate corresponding shaft bearing structure has an opening, and the first magnetic part is then arranged at opening.
In a preferred embodiment of the present invention, the first magnetic part can be circle structure or pied geometry.
In a preferred embodiment of the present invention, thin fan more comprises base plate, and motor, impeller are sequentially arranged on base plate, and base plate has at least one holding part, and at least one magnetic part more comprises the second magnetic part, and the second magnetic part is arranged at holding part.
In a preferred embodiment of the present invention, the corresponding magnet assembly of holding part is arranged.
In a preferred embodiment of the present invention, wherein the height ratio of impeller and thin fan is at least greater than 0.5.
In a preferred embodiment of the present invention, the whole height of thin fan is not more than 5 millimeters.Wherein, the gross weight of impeller, magnet assembly and rotating shaft is not more than 5 grams.
In a preferred embodiment of the present invention, magnetic part is attracted this rotating shaft.
In a preferred embodiment of the present invention, containing space established by rotating shaft part card.Wherein, the magnetic part twisted rotary shaft of this embodiment that arranges in pairs or groups is arranged.
Thin fan of the present invention by the configuration of single ball bearing, and reduces the component of thin fan entirety, below the height reduction to 5 millimeter making the entirety of thin fan, to reach the object of slimming.
Accompanying drawing explanation
Fig. 1 is the generalized section of known fan structure.
Fig. 2 is the generalized section of the first embodiment of thin fan of the present invention.
Fig. 3 is the generalized section of the second embodiment of thin fan of the present invention.
Description of reference numerals
1: known fan structure
10: bearing housing
11: stator structure
12: rotor structure
13a, 13b: bearing
14: spring
15: clasp
2,2a: thin fan
20: impeller
201: wheel hub
202: blade structure
21: motor
211: stator structure
212: bearing structure
212a: bearing support
212b: single ball bearing
213: magnet assembly
213a: magnet
213b: magnetic conduction shell
214,215: rotating shaft
22: magnetic part
221, the 221a: the first magnetic part
222: the second magnetic parts
23: base plate
231: holding part
H, H1, H2: highly
Embodiment
Hereinafter with reference to correlative type, a kind of thin fan according to present pre-ferred embodiments is described, wherein identical element is illustrated with identical reference marks.
First, please refer to Fig. 2, Fig. 2 is the generalized section of the first embodiment of thin fan of the present invention.
Thin fan 2 of the present invention, comprises impeller 20 and motor 21.And the thin fan 2 of the present embodiment more can comprise at least one magnetic part 22.Wherein, at least one magnetic part 22 of the present embodiment at least comprises the first magnetic part 221.
Impeller 20 has wheel hub 201 and blade structure 202.Blade structure 202 is arranged around wheel hub 201, and wherein wheel hub 201 has a perforation, and perforation can be a hollow circular cylinder.The illustrative blade structure 202 of this drawing, wheel hub 201 can be integrated into solid memder, but not as limit.
21, motor comprises stator structure 211, bearing structure 212 and magnet assembly 213 and rotating shaft 214, and motor 21 drives impeller 20 is rotated.Magnet assembly 213 is positioned at the inner side of wheel hub 201 and ring sets substructure 211.
Magnet assembly 213 comprises magnet 213a and magnetic conduction shell 213b, and magnet 213a adjoins stator structure 211.Bearing structure 212 comprises bearing support 212a and single ball bearing 212b, and single ball bearing 212b is arranged at bearing support 212a and forms containing space, and rotating shaft 214 is able to card establishes this containing space and arrange with wheel hub 201 close-fitting.Single ball bearing 212b in this embodiment is provided wheel hub 201 1 support forces.
The containing space that this place describes is formed by bearing support 212a and single ball bearing 212b, and object is arranged in wherein for making shaft rotating shaft 214.
If magnetic part 22 is arranged at the side of bearing support 212a, then can attract bearing structure 212, to provide precompression to bearing structure 212 further.Precompression herein is also reached by adjusting the magnetic force of magnetic part 22.The component of known fan structure 1 can be omitted by this kind of configuration, as spring 14 can be omitted, the integrated member of motor is reduced, to realize the object of slimming further.
For Fig. 2, the first magnetic part 221 is arranged at the side of bearing support 212a, and makes the first magnetic part 221 attract bearing structure 212.Specifically, the first magnetic part 221 herein can attract the inner ring of the single ball bearing 212b of bearing structure 212.The inner ring of single ball bearing 212b needs at least partly made by permeability magnetic material, and permeability magnetic material such as can be silicon steel, amorphous alloy (amorphous alloy), ferromagnetic (ferromagnetic) or ferrous salt (ferrite) etc., but not as limit.
Thin fan 2 of the present invention more comprises base plate 23, and motor 21, impeller 20 are sequentially arranged on base plate 23.Base plate 23 corresponding shaft bearing structure 212 has an opening (figure does not mark), in order to arrange bearing support 212a and the first magnetic part 221.
Wherein, can according to different demands, the shape adjusting the first magnetic part 221 is circle structure or pied geometry, in addition, in other mode of executions, the first magnetic part 221 also can adopt multiple magnetic part to form, such as by the structure of two panels semicircle, but not as limit.
In addition, the base plate 23 of the present embodiment more can comprise at least one holding part 231, and the holding part 231 of the present embodiment can be arranged at arbitrary place below impeller 20, and ring-type is arranged centered by wheel hub 201.In addition, the position of holding part 231 is preferably arranged (be such as a convex groove, and bump being towards magnet assembly) near magnet assembly 213.
In the present embodiment, holding part 231 also made by permeability magnetic material, therefore can make the magnet 213a of magnet assembly 213 attract holding part 231, and impeller 20 can be attracted indirectly to provide precompression to bearing structure 212.
And the rotating shaft 214 of the thin fan 2 of the present embodiment, it can wear the perforation (or hollow circular cylinder) of wheel hub 201.And when rotating shaft 214 is arranged in perforation, wheel hub 201 will be made radially to extend a little, namely perforation will be strutted a little, therefore rotating shaft 214 and wheel hub 201 abut against the mechanical strength increasing thin fan 2.
Rotating shaft 214 also can be made by permeability magnetic material, therefore the first magnetic part 221 is except can attracting bearing structure 212, also can attract rotating shaft 214.
Continuous reference drawing 2, the impeller 20 of the present embodiment is highly for height H 1 ratio of H2 and thin fan 2 is at least greater than 0.5.And the whole height of thin fan 2 is not more than 5 millimeters and impeller 20, magnet assembly 213 are not more than 5 grams with the gross weight of rotating shaft 214.
What remark additionally is, gross weight is not more than 5 grams herein, will not with impeller 20, magnet assembly 213 with rotating shaft 214 for limit, when the weight herein measured should be that bearing structure 212 bears and operates, the gross weight of rotating mechanism is for measuring foundation, therefore will adjust to some extent according to different embodiments.
Then please refer to Fig. 3, it is the generalized section of the second embodiment of thin fan of the present invention.
The present embodiment and previous embodiment difference are that at least one magnetic part 22 of the present embodiment more comprises the second magnetic part 222, and the second magnetic part 222 is arranged at the holding part 231 of base plate 23.
Thin fan 2a as shown in Figure 3, its magnetic part 22 more comprises the second magnetic part 222, and the second magnetic part 222 is arranged in holding part 231, therefore can attract magnet assembly 213.By this kind of configuration, can attract, adsorb the clasp 15 that impeller 20 also can replace known motor, and reach the effect similar to clasp.Also indirectly provide by this kind of configuration and indirectly provide precompression to bearing structure 212.
Second magnetic part 222 also can be multiple magnetic part and formed, as by two panels semi-circular structure, but not as limit.
The present embodiment and another difference of previous embodiment are, the rotating shaft 215 of the thin fan 2a of the present embodiment for being partly arranged in base plate 23 or other mechanisms, and is arranged in containing space at least partly.In other words, the rotating shaft 215 of the present embodiment protrudes from wheel hub 201 at least partly.
The effect that rotating shaft 215 protrudes from wheel hub 201 is at least partly to avoid thin fan 2a to be subject to external force collision, makes shell produce deformation and then damage its internals.Specifically, when thin fan 2a is arranged at electronic equipment, when electronic equipment is squeezed or clash into, thin fan 2a upper shell may be made to sink or depression, the situation not having rotating shaft 215 to protrude from wheel hub 201 at least partly, upper shell will directly extrude thin fan 2a, but when rotating shaft 215 protrudes from wheel hub 201 at least partly, the deformation of the housing of top will stop by rotating shaft 215 or slow down, and the damage of thin fan 2a can be avoided further.
And in order to the rotating shaft 215 of arranging in pairs or groups above-mentioned, the first magnetic part 221a of the present embodiment is preferably circle structure or at least two magnet formed.And the first magnetic part 221a preferably can be arranged by twisted rotary shaft 215.
Element numbers and the identical person of the first embodiment in second embodiment, its structure and fuction is also identical, repeats no more in this.
In sum, thin fan of the present invention by the configuration of single ball bearing, and reduces the component of thin fan entirety, below the height reduction to 5 millimeter making the entirety of thin fan, to reach the object of slimming.
The foregoing is only illustrative, but not be restricted person.Anyly do not depart from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should be contained in claim of the present invention.
Claims (14)
1. a thin fan, comprising:
One impeller, have a wheel hub and a blade structure, this blade structure is arranged around this wheel hub; And
One motor, comprise a stator structure, a magnet assembly, a bearing structure and a rotating shaft, and this motor drives this wheel rotation, this magnet assembly is positioned at the inner side of this wheel hub and ring establishes this stator structure, wherein this magnet assembly comprises a magnet and a magnetic conduction shell, this bearing structure comprises a bearing support and a single ball bearing, and this single ball bearing is arranged at this bearing support and forms a containing space, and this containing space established by this rotating shaft card.
2. thin fan as claimed in claim 1, more comprises at least one magnetic part, is arranged at the side of this bearing support, to attract this bearing structure.
3. thin fan as claimed in claim 2, wherein this magnetic part attracts an inner ring of this single ball bearing of this bearing structure.
4. thin fan as claimed in claim 2, this at least one magnetic part comprises one first magnetic part, to arranging by bearing structure.
5. thin fan as claimed in claim 4, more comprise a base plate, this motor, this impeller are sequentially arranged on this base plate, and this base plate is to having an opening by bearing structure, and this first magnetic part is then arranged at this opening.
6. thin fan as claimed in claim 4, wherein this first magnetic part is circle structure or pied geometry.
7. the thin fan as described in claim 2 or 4, more comprise a base plate, this motor, this impeller are sequentially arranged on this base plate, and this base plate has at least one holding part, this at least one magnetic part more comprises one second magnetic part, and this second magnetic part is arranged at this holding part.
8. thin fan as claimed in claim 7, wherein this holding part is to arranging by magnet assembly.
9. thin fan as claimed in claim 1, wherein the height ratio of this impeller and this thin fan is at least greater than 0.5.
10. thin fan as claimed in claim 1, wherein the whole height of this thin fan is not more than 5 millimeters.
11. thin fans as claimed in claim 1, the gross weight of wherein this impeller, this magnet assembly and this rotating shaft is not more than 5 grams.
12. thin fans as claimed in claim 2, wherein this magnetic part is attracted this rotating shaft.
13. thin fans as claimed in claim 2, wherein this containing space established by this rotating shaft part card.
14. thin fans as claimed in claim 13, this magnetic part is arranged around this rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310502563.6A CN104564732B (en) | 2013-10-23 | 2013-10-23 | Thin fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310502563.6A CN104564732B (en) | 2013-10-23 | 2013-10-23 | Thin fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104564732A true CN104564732A (en) | 2015-04-29 |
| CN104564732B CN104564732B (en) | 2017-10-03 |
Family
ID=53081584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310502563.6A Active CN104564732B (en) | 2013-10-23 | 2013-10-23 | Thin fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564732B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425865A (en) * | 2017-02-14 | 2018-08-21 | 台达电子工业股份有限公司 | Thin fan and thin motor |
| US10954946B2 (en) | 2017-02-14 | 2021-03-23 | Delta Electronics, Inc. | Thin fan |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW383818U (en) * | 1999-02-09 | 2000-03-01 | Adda Corp | Structure for radiator fan set with magnetic positioning |
| US20040136842A1 (en) * | 2002-07-04 | 2004-07-15 | Minebea Co., Ltd. | Fan motor |
| CN1901330A (en) * | 2005-07-19 | 2007-01-24 | 台达电子工业股份有限公司 | Mangnetic force positioning motor and its fan |
| CN101060766A (en) * | 2006-04-17 | 2007-10-24 | 建准电机工业股份有限公司 | Thin heat radiation machine |
| CN101127462A (en) * | 2006-08-16 | 2008-02-20 | 台达电子工业股份有限公司 | Fan, motor and magnetic conduction shell |
| CN101363458A (en) * | 2007-08-10 | 2009-02-11 | 富准精密工业(深圳)有限公司 | Radiator fan |
| CN201466808U (en) * | 2009-08-21 | 2010-05-12 | 苏州聚力电机有限公司 | Motor with negative pressure adsorption type bearing |
-
2013
- 2013-10-23 CN CN201310502563.6A patent/CN104564732B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW383818U (en) * | 1999-02-09 | 2000-03-01 | Adda Corp | Structure for radiator fan set with magnetic positioning |
| US20040136842A1 (en) * | 2002-07-04 | 2004-07-15 | Minebea Co., Ltd. | Fan motor |
| CN1901330A (en) * | 2005-07-19 | 2007-01-24 | 台达电子工业股份有限公司 | Mangnetic force positioning motor and its fan |
| CN101060766A (en) * | 2006-04-17 | 2007-10-24 | 建准电机工业股份有限公司 | Thin heat radiation machine |
| CN101127462A (en) * | 2006-08-16 | 2008-02-20 | 台达电子工业股份有限公司 | Fan, motor and magnetic conduction shell |
| CN101363458A (en) * | 2007-08-10 | 2009-02-11 | 富准精密工业(深圳)有限公司 | Radiator fan |
| CN201466808U (en) * | 2009-08-21 | 2010-05-12 | 苏州聚力电机有限公司 | Motor with negative pressure adsorption type bearing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425865A (en) * | 2017-02-14 | 2018-08-21 | 台达电子工业股份有限公司 | Thin fan and thin motor |
| CN108425866A (en) * | 2017-02-14 | 2018-08-21 | 台达电子工业股份有限公司 | Thin fan |
| CN108425866B (en) * | 2017-02-14 | 2020-08-28 | 台达电子工业股份有限公司 | Thin fan |
| US10954946B2 (en) | 2017-02-14 | 2021-03-23 | Delta Electronics, Inc. | Thin fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104564732B (en) | 2017-10-03 |
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