CN102808803A - Roller fan with magnetic attraction structure - Google Patents
Roller fan with magnetic attraction structure Download PDFInfo
- Publication number
- CN102808803A CN102808803A CN2011101482154A CN201110148215A CN102808803A CN 102808803 A CN102808803 A CN 102808803A CN 2011101482154 A CN2011101482154 A CN 2011101482154A CN 201110148215 A CN201110148215 A CN 201110148215A CN 102808803 A CN102808803 A CN 102808803A
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- fan
- rotating shaft
- magnetic
- roller bearing
- endoporus
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a roller fan with a magnetic attraction structure. The roller fan with the magnetic attraction structure comprises fan blades and an outer fan frame positioned on the periphery of the fan blades, a metal rotating shaft is positioned at the center of the fan blades, a center post is arranged in the middle of the outer fan frame, the rotating shaft is inserted into an inner hole which is arranged at the center of the center post, the middle of the inner hole is slightly narrowed to form a narrowing section, a ball bearing is sleeved at a near end of the rotating shaft, is positioned in the inner hole and clings to the narrowing section, a magnetic part is arranged at a far end of the rotating shaft inside the inner hole, and a rubber plug is plugged at an opening, opposite to the inner hole, of the bottom end of the center post. On the basis of a traditional roller fan, the roller fan with the magnetic attraction structure has the advantages that only one ball bearing is retained, and the magnetic part is additionally arranged at the far end of the rotating shaft, so that the fan can be guaranteed not to shed off during high-speed rotation, the thickness of the fan is decreased beneficially, cost is saved, and the roller fan has wide application prospect.
Description
Technical field
The present invention relates to a kind of fan structure, especially a kind of have magnetic material the rotor of roller bearing fan adsorbed, thus the thickness that helps reducing fan with reduce production costs.
Background technique
Fan (rotor fan) is to be installed on the axle of rotor one or both ends, agitates the mechanical component of gas cooling generator windings and iron core etc., is widely used in to produce and various fields in life.Existing fan comprises flabellum and the beam barrel that is positioned at the flabellum middle part, and the beam barrel middle part has the endoporus that rotating shaft is installed, and general, flabellum is processed by engineering plastics, and the material of beam barrel is metal often.
Fan is divided into DC fan and ac fan according to power source, is connected fixing mode with beam barrel according to rotating shaft, is divided into oil-containing fan and roller bearing fan.The roller bearing fan is that the rotation that ball bearing is realized flabellum is installed in endoporus, in general, a ball bearing need be installed respectively in the space between endoporus and the rotating shaft, and be respectively equipped with disc spring and packing ring at the upper and lower end of rotating shaft.
At present, diameter and highly different according to ball bearing are divided into different models, and wherein the less ball bearing majority of size is used to make the less fan of thickness; But the cost of production of this kind ball bearing is higher, present most dependence on import, and because the size of bearing is less; The error rate of product is higher, and because the width of bearing is little, when being installed in the long fan of flabellum; In the process of high speed rotating, its less stable, easy shaking; And larger-size fan is unfavorable for ultra-thinization of fan because its diameter and thickness are all bigger, and these have all limited the further promotion and application of roller bearing fan.
Summary of the invention
The present invention promptly is to the above-mentioned defective that exists in the present roller bearing fan, provides a kind of employing magnetic material that fan shaft is adsorbed, thereby only needs a ball bearing, helps to reduce the thickness of fan like this, and reduces cost.
Mentality of designing of the present invention is on the basis of traditional roller bearing fan; Original pad or rubber ring between endoporus and rotating shaft removed; And only keep a ball bearing, set up the adsorption piece of being processed by magnetic material at the far-end of rotating shaft, countershaft produces suction; Avoid fans deviating from rotary course, and prolonged the working life of fan.
Specifically, the roller bearing fan with magnetic adsorption structure of the present invention is characterized in that: described fan comprises flabellum and the fan housing that is positioned at the flabellum periphery; The rotating shaft of metal material is positioned at the flabellum center, and the middle part of fan housing is provided with center pillar, and the center of center pillar is an endoporus; Rotating shaft is inserted in the endoporus; Endoporus middle part constriction slightly forms a coarctation segment, and the near-end of rotating shaft is with a ball bearing, and ball bearing is positioned at endoporus and is close to coarctation segment; Far-end in the inner rotating shaft of endoporus is provided with a magnetic part, and there is rubber stopper the center pillar bottom over against the opening filling of endoporus.
Described roller bearing fan with magnetic adsorption structure, it is characterized in that: the root of said rotating shaft is equipped with disc spring.
Described roller bearing fan with magnetic adsorption structure is characterized in that: also be provided with near the position of magnetic part in the said rotating shaft and be used to increase and the attract each other platform of power of magnetic part.Described platform plays the effect that increases the magnetic attraction area, prevents fan under the situation of high speed rotating, and that possibly cause deviates from.
Described roller bearing fan with magnetic adsorption structure, it is characterized in that: described platform is processed by magnetic material, and the one side polarity that platform and magnetic part are relative is opposite.
Described roller bearing fan with magnetic adsorption structure, it is characterized in that: described platform is processed by metallic material.
Described metallic material can be that iron, cobalt, nickel are processed, or contained their alloy.
Described roller bearing fan with magnetic adsorption structure is characterized in that: said rotating shaft contacts with magnetic part or at a distance of certain distance, the distance of institute's distance is wanted to guarantee enough suction certainly.
Described roller bearing fan with magnetic adsorption structure is characterized in that: the top that said rotating shaft contacts with magnetic part is the plane or has an arc shaped surface.The area of contact of arc shaped surface is little, magnetic force slightly a little less than, but the friction of rotation is littler, noise is lower, and can also increase magnetic adsorptive power through increasing platform.
Roller bearing fan with magnetic adsorption structure of the present invention has following advantage:
1, on the basis of traditional roller bearing fan, only keep a ball bearing, set up magnetic part at the far-end of rotating shaft, both guaranteed that fan can not deviate from the process of high speed rotating, and helped to reduce the thickness of fan;
2, practiced thrift cost; Owing to only adopt a ball bearing, when making thin fan, just can adopt larger-size ball bearing, unlike the small size bearing that uses import; Both practice thrift cost of production, reduced the error rate of little bearing again;
3, make simply, with low cost, be easy to promote.
Description of drawings
Fig. 1 is the cross-sectional view of traditional roller bearing fan in this background technique;
Fig. 2 is the cross-sectional view of one embodiment of the invention;
Fig. 3 is the cross-sectional view of another embodiment of the present invention;
Fig. 4 is the local structure for amplifying schematic representation of Fig. 3;
Wherein, 11 is that flabellum, 12 is that rotating shaft, 21 is that fan housing, 22 is that center pillar, 23 is that endoporus, 24 is that rubber stopper, 25 is that ball bearing, 3 is that disc spring, 4 is that magnetic part, 5 is a platform.
Embodiment
Below in conjunction with accompanying drawing the roller bearing fan with magnetic adsorption structure of the present invention is described; Purpose is for the public better understands technology contents of the present invention, rather than to the restriction of said technology contents, in fact; With the principle identical or approximate with the present invention; To the improvement that said fan carries out, comprise increase and decrease and replacement, all within the present invention's technological scheme required for protection to corresponding construction.
Fig. 1 is the structural representation of existing roller bearing fan, is positioned at endoporus 23 inside of center pillar 22 in rotating shaft 12, and the root of rotating shaft is provided with disc spring 3, and in endoporus 23, is with two ball bearings 25 in the rotating shaft 12.Such structure must cause the thickness of fan bigger; In order to reduce the thickness of fan, just must use the less ball bearing of size, but the cost of this kind bearing is higher; The product error rate is higher; And, in being applied to bigger flabellum, will cause that the stability of fan is not high because bearing is less.
As shown in Figure 2, the roller bearing fan with magnetic adsorption structure of the present invention comprises flabellum 11 and the fan housing 21 that is positioned at flabellum 11 peripheries; The rotating shaft 12 of metal material is positioned at flabellum 11 centers, and the middle part of fan housing 21 is provided with center pillar 22, and the center of center pillar 22 is an endoporus 23; Rotating shaft 12 is inserted in the endoporus 23; Endoporus 23 middle parts constriction slightly form a coarctation segment, and the near-end of rotating shaft 12 is with a ball bearing 25, and ball bearing 25 is positioned at endoporus 23 and is close to coarctation segment; Far-end in endoporus 23 inner rotating shafts is provided with a magnetic part 4, and there is rubber stopper 24 center pillar 22 bottoms over against the opening filling of endoporus 23.
The top that said rotating shaft 12 contacts with magnetic part 4 is plane (like Fig. 2) or has an arc shaped surface (like Fig. 3); The area of contact of arc shaped surface is little, magnetic force slightly a little less than, but the rotation friction littler; Noise is lower, and can also increase magnetic adsorptive power through increasing platform.
Shown in Fig. 3-4; In order to increase the attraction force of magnetic part countershaft; Also be provided with near the position of magnetic part 4 in the said rotating shaft 12 and be used to increase and the attract each other platform 5 of power of magnetic part; Described platform 5 plays the effect that increases the magnetic attraction area, prevents fan under the situation of high speed rotating, and that possibly cause deviates from; Said rotating shaft 12 contacts with magnetic part 4 or at a distance of certain distance, the distance of institute's distance is wanted to guarantee enough suction certainly.
Roller bearing fan with magnetic adsorption structure of the present invention, use simple in structure, manufacturing is easy; With low cost, help to reduce the thickness of fan, and reduced dependence imported equipments and parts; Increased the stability of fan, had wide promotion and application and be worth.
Claims (7)
1. roller bearing fan with magnetic adsorption structure is characterized in that: described fan comprises flabellum and the fan housing that is positioned at the flabellum periphery, and the rotating shaft of metal material is positioned at the flabellum center; The middle part of fan housing is provided with center pillar; The center of center pillar is an endoporus, and rotating shaft is inserted in the endoporus, and endoporus middle part constriction slightly forms a coarctation segment; The near-end of rotating shaft is with a ball bearing; Ball bearing is positioned at endoporus and is close to coarctation segment, is provided with a magnetic part at the far-end of the inner rotating shaft of endoporus, and there is rubber stopper the center pillar bottom over against the opening filling of endoporus.
2. the roller bearing fan with magnetic adsorption structure according to claim 1, it is characterized in that: the root of said rotating shaft is equipped with disc spring.
3. the roller bearing fan with magnetic adsorption structure according to claim 1 is characterized in that: also be provided with near the position of magnetic part in the said rotating shaft and be used to increase and the attract each other platform of power of magnetic part.
4. the roller bearing fan with magnetic adsorption structure according to claim 1, it is characterized in that: described platform is processed by magnetic material, and the one side polarity that platform and magnetic part are relative is opposite.
5. the roller bearing fan with magnetic adsorption structure according to claim 1, it is characterized in that: described platform is processed by metallic material.
6. the roller bearing fan with magnetic adsorption structure according to claim 1 is characterized in that: said rotating shaft contacts with magnetic part or at a distance of certain distance.
7. the roller bearing fan with magnetic adsorption structure according to claim 1 is characterized in that: the top that said rotating shaft contacts with magnetic part is the plane or has an arc shaped surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101482154A CN102808803A (en) | 2011-06-03 | 2011-06-03 | Roller fan with magnetic attraction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101482154A CN102808803A (en) | 2011-06-03 | 2011-06-03 | Roller fan with magnetic attraction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102808803A true CN102808803A (en) | 2012-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101482154A Pending CN102808803A (en) | 2011-06-03 | 2011-06-03 | Roller fan with magnetic attraction structure |
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| Country | Link |
|---|---|
| CN (1) | CN102808803A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519860Y (en) * | 2002-01-10 | 2002-11-06 | 元山科技工业股份有限公司 | Fan for radiation |
| CN1651771A (en) * | 2004-02-04 | 2005-08-10 | 奇鋐科技股份有限公司 | Motor single bearing structure |
| US20050184609A1 (en) * | 2004-02-20 | 2005-08-25 | Delta Electronics, Inc. | Motor and magnetic bearing assembly thereof |
| US20090232678A1 (en) * | 2008-03-14 | 2009-09-17 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation fan |
| CN102042241A (en) * | 2009-10-16 | 2011-05-04 | 洪银农 | Heat radiating fan |
| CN202140343U (en) * | 2011-06-03 | 2012-02-08 | 深圳市顺合泰电机有限公司 | Roller fan with magnetic absorption structure |
-
2011
- 2011-06-03 CN CN2011101482154A patent/CN102808803A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519860Y (en) * | 2002-01-10 | 2002-11-06 | 元山科技工业股份有限公司 | Fan for radiation |
| CN1651771A (en) * | 2004-02-04 | 2005-08-10 | 奇鋐科技股份有限公司 | Motor single bearing structure |
| US20050184609A1 (en) * | 2004-02-20 | 2005-08-25 | Delta Electronics, Inc. | Motor and magnetic bearing assembly thereof |
| US20090232678A1 (en) * | 2008-03-14 | 2009-09-17 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation fan |
| CN102042241A (en) * | 2009-10-16 | 2011-05-04 | 洪银农 | Heat radiating fan |
| CN202140343U (en) * | 2011-06-03 | 2012-02-08 | 深圳市顺合泰电机有限公司 | Roller fan with magnetic absorption structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121205 |