CN103867461A - Cooling fan - Google Patents
Cooling fan Download PDFInfo
- Publication number
- CN103867461A CN103867461A CN201210533458.4A CN201210533458A CN103867461A CN 103867461 A CN103867461 A CN 103867461A CN 201210533458 A CN201210533458 A CN 201210533458A CN 103867461 A CN103867461 A CN 103867461A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- bearing
- radiation fan
- retaining part
- oil
- 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
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a cooling fan. The cooling fan comprises a stator structure, a rotor structure and a baseplate, the rotor structure matched with the stator structure and is capable of rotating relatively to the stator structure, the baseplate supports the stator structure, the rotor structure comprises a hub and a rotating shaft, one end of the rotating shaft is fixed on the hub, the baseplate is provided with a shaft seat, a holding space is formed in the shaft seat and is provided with a bearing, the other end of the rotating shaft enters the holding space and is in rotary connection with the bearing, and the top end of the shaft seat is integrally bended towards the rotating shaft to form an oil baffle part for covering the holding space.
Description
Technical field
The present invention relates to a kind of fan, relate in particular to a kind of radiation fan for heat-generating electronic elements is dispelled the heat.
Background technique
Fan is a crucial constituent elements of Computerized heat dissipating system, to improving service life, the reliability of fan and ensureing that the stable operation of computer system is most important.Fan spindle bearing generally adopts oil lubrication, and the guarantor of existing fan spindle bearing oil effect is generally not satisfactory, along with the loss of lubricant oil in bearing, the corresponding increase of friction meeting between fan shaft and bearing inner wall, thereby reduce the life-span of bearing, and then reduce the working life of fan.
At present, those skilled in the art protect oily structure by importing in the bearing arrangement of radiation fan, to reach the effect of the lubricated and sealing that strengthens bearing.The flinger ring that one annular conventionally can be set above bearing, forms an oil storage space between described flinger ring and bearing, between the inner edge of flinger ring and the outer surface of rotating shaft, form gap, friction between the two when avoiding rotating shaft rotation.When work, the parts of lubricating oil in bearing moves upward along rotating shaft under centrifugal action, stops through flinger ring, is gathered in oil storage space, is then back in bearing, thereby avoids oil leak.But the fan of described kind of structure, need to increase flinger ring extraly in the top of bearing, could effectively prevent oil leak, thereby cause on the one hand, manufacture cost increases, fan structure complexity, and built-up time increases; On the other hand, flinger ring is easy to become flexible, and then oily effect is protected in impact.
Summary of the invention
In view of this, be necessary to provide a kind of simple in structure and oily effective radiation fan of guarantor.
A kind of radiation fan, it comprises stator structure, coordinate and the rotor structure that can rotate relative to it and the substrate that supports described stator structure with stator structure, described rotor structure comprises wheel hub and rotating shaft, described rotating shaft one end is fixed on described wheel hub, described substrate is provided with axle bed, described axle bed inside offers a containing space, in described containing space, be provided with bearing, the other end of described rotating shaft stretches in described containing space and is rotatably connected with described bearing, the top of described axle bed is formed with the oil retaining part of containing space described in capping to the bending of described rotating shaft one.
Radiation fan of the present invention is without the extra loaded down with trivial details parts such as increase flinger ring, clasp, thereby also reduced manufacture cost, improved packaging efficiency.What is more important; because described oil retaining part extends to the below of the fixed base in described wheel hub from axle bed top one; the periphery upper surface of perforation that makes described oil retaining part is near described fixed base and be subject to the protection of described fixed base; thereby radiation fan is in the time of work; described oil retaining part can not transferred distortion because of the high-speed rotary of rotor structure; can reach the oily effect of better guarantor; moreover the lubricant oil in the oil storage space between described bearing top and described oil retaining part also can further be subject to stopping of fixed base and be gathered in oil storage space, is conducive to prevent leakage of oil.
Accompanying drawing explanation
Fig. 1 is the combination schematic diagram of radiation fan.
Fig. 2 is the perspective exploded view of radiation fan in Fig. 1.
Fig. 3 is the inversion figure of Fig. 2.
Fig. 4 be in Fig. 1 radiation fan along the generalized section of IV-IV line.
Primary component symbol description
| |
10 |
| |
11 |
| |
13、513 |
| Axle bed | 14 |
| Bearing arrangement | 20 |
| |
21 |
| |
23 |
| |
30 |
| Unshakable in one's |
31 |
| |
33 |
| |
35 |
| |
37 |
| Mounting hole | 39 |
| |
50 |
| |
51 |
| |
53 |
| |
55 |
| Flabellum | 57 |
| |
60 |
| |
100 |
| |
111 |
| |
113 |
| Rib | 115 |
| Enclose portion | 131 |
| Diversion division | 133 |
| Exhaust outlet | 134 |
| Containing space | 140 |
| Fixing part | 141 |
| Joint | 142 |
| Main part | 143 |
| Stepped part | 144 |
| Boss | 145 |
| Axis hole | 211 |
| Oil guide slot | 213 |
| Diapire | 511 |
| |
531 |
| |
1451 |
| |
1453 |
| Fixed |
5112 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
With reference to the accompanying drawings, be described further in conjunction with the embodiments.
Refer to Fig. 1 to Fig. 2, described radiation fan 100 comprises fan frame 10, one bearing arrangement 20, one stator structures 30 and rotor structures 50, described rotor structure 50 correspondences are arranged at the periphery of described stator structure 30, and rotor structure 50 and stator structure 30 are contained in respectively in fan frame 10.
Described fan frame 10 comprises a base plate 11 and from the upwardly extending sidewall 13 of base plate 11 edge-perpendicular and be formed at the axle bed 14 on base plate 11.
Described base plate 11 is a smooth plate body, and its middle part offers the intake grill 111 running through, and described intake grill 111 is circular.One substrate 113 is positioned at the middle part of described intake grill 111.Described axle bed 14 is formed on substrate 113.Some ribs 115 are positioned at intake grill 111 and connection substrate 113 and base plate 11.In the present embodiment, described substrate 113, rib 115 and axle bed 14 can be integrally formed.
Described sidewall 13 comprises the portion 131 that encloses of a semicircle shape around rotor structure 50 and from the two ends of the portion that encloses 131 of described semicircle shape outward extending two diversion divisions 133,135 respectively.Two diversion divisions 133,135 are parallel to each other and interval arranges.Between the diversion division 133,135 at two intervals, form air port 134.
Described axle bed 14 is tubular, and its upper surface middle part from the substrate 113 of fan frame 10 upwards projects formation.Described axle bed 14 tops are an opening end, and its central authorities form a containing space 140.Described axle bed 14 comprises an annular fixing part 141 extending vertically upward from substrate 113, self-retaining portion 141 top levels extend internally joint 142, the main part 143 extending vertically upward from joint 142 upper surfaces, the round table-like stepped part 144 that autonomous body 143 tops extend internally obliquely and the round table-like boss 145 further extending internally obliquely from stepped part 144 tops of the ring-type forming.
The internal diameter of described fixing part 141 is greater than the internal diameter of described main part 143, and the external diameter of described fixing part 141 is greater than the external diameter of described main part 143.Described stepped part 144 all reduces to top orientation from its bottom gradually with internal diameter and the external diameter of described boss 145, and the internal diameter of described boss 145 bottoms equals the internal diameter on described stepped part 144 tops.In the present embodiment, described fixing part 141, joint 142, main part 143, stepped part 144 and boss 145 are one-body molded.
Described bearing arrangement 20 comprises a bearing 21 and a wear plate 23.Described bearing 21 is the oil-impregnated bearing that an inside has a large amount of holes.Described bearing 21 is contained in its containing space 140 by the opening on axle bed 14 tops.The inner axially extended axis hole 211 that forms of described bearing 21.The outer surface symmetry of described bearing 21 be formed with some oil guide slot 213.Each oil guide slot 213 extends to the outer surface of bearing 21 from the top end surface of bearing 21, and is connected with the axis hole 211 of bearing 21 inside respectively in end face and the outer surface of bearing 21, refluxes for lubricant oil.Described wear plate 23 is a discoid lamellar body, and it is made by wear-resisting material.Described wear plate 23 is positioned at the bottom of the containing space 140 of axle bed 14, and upwards supports the bottom of bearing 21.
Described stator structure 30 comprises a stator core 31, a coil 33, a circuit board 35, an insulating frame 37.Described insulating frame 37 is coated stator core 31 in the inner.Described coil 33 is wound on insulating frame 37.Described circuit board 35 is located at the bottom of described insulating frame 37 and is electrical connected with coil 33.The central authorities of described stator core 31, insulating frame 37 and circuit board 35 form respectively the coaxial aperture of mutual correspondence, thereby form in the central authorities of whole stator structure 30 mounting hole 39 running through up and down after assembling.
Please be simultaneously referring to Fig. 3, described rotor structure 50 comprises a wheel hub 51, a rotating shaft 53, a magnetic group 55 and some flabellums 57.
Described wheel hub 51 is tubular, comprises the diapire 511 of a circle and the sidewall 513 of the ring-type of extending vertically upward from diapire 511 peripheries.The upper face center of described diapire 511 is formed with a fixed base 5112.In the top of described fixed base 5112 fixed rotating shafts 53 and its.Described rotating shaft 53 is in forming a free end away from one end of described fixed base 5112.Preferably, near the position on top, one circular groove 531 is set and is positioned at the containing space 140 of axle bed 14 in described rotating shaft 53, described circular groove 531 cuts off in order to the path that lubricant oil is spilt, thereby prevents that better lubricant oil from spilling.
Described magnetic group 55 in the form of a ring, is attached at the internal surface of the sidewall 513 of described wheel hub 51.Described some flabellums 57 are located on the peripheral of described sidewall 513 and are radial and stretch out.The internal diameter of described magnetic group 55 and described wheel hub 51 is greater than the external diameter of iron core 31 and insulating frame 37, so that iron core 31 and insulating frame 37 are accommodated in the inner.
In described wheel hub 51 covers are set substructures 30 and stator structure 30 are housed in.Described magnetic group 55 arranges with 31 intervals unshakable in one's determination, and is relatively fixed on stator structure 30 peripheries.The free end of described rotating shaft 53 stretches into the axis hole 211 of the bearing 21 that is arranged in axle bed 14 and is rotatably connected with bearing 21, and is resisted against on described wear plate 23.The fixing part 141 of described axle bed 14 and main part 143 are around bearing 21 in the inner.The boss 145 of described axle bed 14 exceeds the plane at circular groove 531 places of described rotating shaft 53.
Referring to Fig. 4, when assembling, by the top of axle bed 14, is boss 145 peripheries of axle bed 14 in the present embodiment, is bent to form an oil retaining part 1451 of containing space 140 described in capping towards the direction one of described rotating shaft 53.In the present embodiment, described oil retaining part 1451 is by forming the method for the top hot melt of axle bed 14.Described oil retaining part 1451 is between described fixed base 5112 tops and described circular groove 531, and the upper surface of oil retaining part 1451 is mutually close with the bottom surface of described fixed base 5112, and between the two, form a slit, rotate freely so that described wheel hub 51 is not interrupted.In the form of a ring, its middle part forms one and runs through its axial perforation 1453 described oil retaining part 1451.Described perforation 1453 is passed for rotating shafts 53, and its internal diameter is greater than the external diameter of described rotating shaft 53, thereby between the periphery of perforation 1453 and rotating shaft 53, forms a small gap at described oil retaining part 1451, so that described rotating shaft 53 is not perforated 1453 obstructions while rotating.Preferably, described oil retaining part 1451 is positioned at the top of the circular groove 531 of rotating shaft 53, and around described rotating shaft 53.Certainly, described oil retaining part 1451 also can extend and stretches into described circular groove 531 inside.
In addition, the common oil storage space 60 that forms between the top of described oil retaining part 1451 and bearing 21 and the circular groove 531 of rotating shaft 53.When work, the magnetic field interaction effect of stator structure 30 and rotor structure 50 drives rotor structure 50 to rotate.Due to the lubricant oil that centrifugal action splashes out along rotating shaft 53, gather by the gap forming between bearing 21 tops and rotating shaft 53 in the oil storage space 60 of top.The circular groove 531 of described rotating shaft 53 makes the path of the lubricant oil moving upward along rotating shaft 53 due to centrifugal action discontinuous, and because the gap width forming between oil retaining part 1451 and rotating shaft 53 is enough little, the lubricant oil splashing outward stops by oil retaining part 1451, is almost all collected in oil storage space 60.These lubricant oil that are gathered in oil storage space 60 are further back in bearing 21 along the oil guide slot 213 of bearing 21 outer surfaces, thereby have prevented fully the leakage of lubricant oil, have guaranteed performance good between bearing 21 and rotating shaft 53.Simultaneously, because described oil retaining part 1451 is bent to form to described rotating shaft 53 one by the top of described axle bed 14, therefore, radiation fan 100 of the present invention is without the extra loaded down with trivial details parts such as increase flinger ring, clasp, thereby also reduce manufacture cost, improved packaging efficiency.What is more important; because described oil retaining part 1451 one extend to the below of described fixed base 5112; the periphery upper surface of perforation 1453 that makes described oil retaining part 1451 is near described fixed base 5112 and be subject to described fixed base 5112 and protect; thereby radiation fan 100 is in the time of work; described oil retaining part 1451 can not transferred distortion because of the high-speed rotary of rotor structure 50; can reach the oily effect of better guarantor; moreover the lubricant oil in oil storage space 60 also can further be subject to stopping of fixed base 5112 and be gathered in oil storage space 60, is conducive to prevent leakage of oil.
Claims (10)
1. a radiation fan, it comprises stator structure, coordinate and the rotor structure that can rotate relative to it and the substrate that supports described stator structure with stator structure, described rotor structure comprises wheel hub and rotating shaft, described rotating shaft one end is fixed on described wheel hub, it is characterized in that: described substrate is provided with axle bed, described axle bed inside offers a containing space, in described containing space, be provided with bearing, the other end of described rotating shaft stretches in described containing space and is rotatably connected with described bearing, the top of described axle bed is formed with the oil retaining part of containing space described in capping to the bending of described rotating shaft one.
2. radiation fan as claimed in claim 1, is characterized in that: in the form of a ring, its middle part is formed with along its axial through hole described oil retaining part, and described through hole wears for described rotating shaft.
3. radiation fan as claimed in claim 1, is characterized in that: described wheel hub comprises a fixed base, and one end of described rotating shaft is fixed in fixed base, and described oil retaining part one extends to the below of described fixed base.
4. radiation fan as claimed in claim 3, is characterized in that: described rotating shaft is provided with a circular groove, and described circular groove is positioned at the containing space of described axle bed, and described oil retaining part is between described fixed base and described circular groove.
5. radiation fan as claimed in claim 3, is characterized in that: described rotating shaft is provided with a circular groove, and described circular groove is positioned at the containing space of described axle bed, and described oil retaining part stretches into described circular groove inside.
6. radiation fan as claimed in claim 3, is characterized in that: between the upper surface of described oil retaining part and the bottom surface of described fixed base, form a slit.
7. radiation fan as claimed in claim 1, it is characterized in that: described axle bed comprises the main part of a tubular, the round table-like stepped part that autonomous body top extends internally obliquely and the round table-like boss further extending internally obliquely from stepped part, described boss is bent to form described oil retaining part to the direction of described rotating shaft.
8. radiation fan as claimed in claim 7, is characterized in that: described oil retaining part forms by boss described in hot melt.
9. radiation fan as claimed in claim 1, it is characterized in that: the outer surface of described bearing is formed with some oil guide slot symmetrically, each oil guide slot extends to the outer surface of bearing from the top end surface of bearing, and be connected with the axis hole of bearing inside respectively in end face and the outer surface of bearing, reflux for lubricant oil.
10. radiation fan as claimed in claim 4, is characterized in that: between the top of described bearing and described oil retaining part, form an oil storage space being communicated with described circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533458.4A CN103867461A (en) | 2012-12-12 | 2012-12-12 | Cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533458.4A CN103867461A (en) | 2012-12-12 | 2012-12-12 | Cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103867461A true CN103867461A (en) | 2014-06-18 |
Family
ID=50906358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210533458.4A Pending CN103867461A (en) | 2012-12-12 | 2012-12-12 | Cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103867461A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067770A (en) * | 2019-05-31 | 2019-07-30 | 广东虹勤通讯技术有限公司 | Fan board and fan with the fan board |
| WO2022205892A1 (en) * | 2021-03-31 | 2022-10-06 | 无锡睿勤科技有限公司 | Oil-retaining and pressure-resistant fan |
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| CN101328910A (en) * | 2007-06-22 | 2008-12-24 | 富准精密工业(深圳)有限公司 | Cooling fan |
| CN101363443A (en) * | 2007-08-08 | 2009-02-11 | 富准精密工业(深圳)有限公司 | Radiator fan |
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2012
- 2012-12-12 CN CN201210533458.4A patent/CN103867461A/en active Pending
Patent Citations (15)
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| CN2546667Y (en) * | 2002-01-25 | 2003-04-23 | 鼎沛股份有限公司 | Improved radiating fan structure |
| CN101021220A (en) * | 2006-02-14 | 2007-08-22 | 日本电产株式会社 | Axial flow fan and housing for the same |
| JP2007224761A (en) * | 2006-02-21 | 2007-09-06 | Nippon Densan Corp | Blower and cooling unit mounted with the blower |
| CN101043163A (en) * | 2006-03-21 | 2007-09-26 | 台达电子工业股份有限公司 | Motor |
| CN101046227A (en) * | 2006-03-28 | 2007-10-03 | 台达电子工业股份有限公司 | Fan, motor and their bearing structure |
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| CN2916206Y (en) * | 2006-06-28 | 2007-06-27 | 元山科技工业股份有限公司 | Radiation fan with circulation oil circuit |
| CN200946586Y (en) * | 2006-08-29 | 2007-09-12 | 力致科技股份有限公司 | Pressure-increasing oil-keeping structure of heat radiation fan |
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| CN101294578A (en) * | 2007-04-25 | 2008-10-29 | 富准精密工业(深圳)有限公司 | Cooling fan and stator insulation sheet structure thereof |
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| CN101328910A (en) * | 2007-06-22 | 2008-12-24 | 富准精密工业(深圳)有限公司 | Cooling fan |
| CN101363443A (en) * | 2007-08-08 | 2009-02-11 | 富准精密工业(深圳)有限公司 | Radiator fan |
| CN201092974Y (en) * | 2007-08-15 | 2008-07-30 | 东莞动利电子有限公司 | DC fan bearing leak-proof oil structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067770A (en) * | 2019-05-31 | 2019-07-30 | 广东虹勤通讯技术有限公司 | Fan board and fan with the fan board |
| WO2022205892A1 (en) * | 2021-03-31 | 2022-10-06 | 无锡睿勤科技有限公司 | Oil-retaining and pressure-resistant fan |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140618 |