CN107989819B - Bearing structure and cooling fan thereof - Google Patents
Bearing structure and cooling fan thereof Download PDFInfo
- Publication number
- CN107989819B CN107989819B CN201610952242.XA CN201610952242A CN107989819B CN 107989819 B CN107989819 B CN 107989819B CN 201610952242 A CN201610952242 A CN 201610952242A CN 107989819 B CN107989819 B CN 107989819B
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- CN
- China
- Prior art keywords
- face
- groove
- shaft hole
- disposed
- bearing structure
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- 238000001816 cooling Methods 0.000 title claims abstract description 20
- 230000004308 accommodation Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims 1
- 239000004519 grease Substances 0.000 abstract description 17
- 230000001050 lubricating effect Effects 0.000 abstract description 16
- 239000003921 oil Substances 0.000 description 37
- 230000017525 heat dissipation Effects 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005245 sintering 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
-
- 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
- F04D29/06—Lubrication
- F04D29/063—Lubrication specially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sliding-Contact Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A bearing structure and a cooling fan thereof, the bearing structure comprising: the bearing structure is arranged in the cooling fan, so that lubricating grease leakage can be prevented, and lubricating grease storage can be increased.
Description
Technical Field
A bearing structure and a cooling fan thereof, in particular to a bearing structure capable of preventing lubricating grease from leaking and providing a storage space and a cooling fan thereof.
Background
The general bearing is mainly used for pivoting with the axle center and reducing the abrasion of the axle center or the corresponding pivoted part caused by direct rotation fit of the axle center and other parts, the general common bearing is an oil-containing bearing, the general oil-containing bearing is mainly formed by powder metallurgy sintering and can store the lubricating grease in the pores through the capillary force of the self after being soaked in the lubricating grease due to the characteristic of multiple pores, and the lubricating grease is guided out of the pores to lubricate the two parts when the axle center pivoted with the bearing is rotated, wherein the motor is most popular.
In the heat dissipation field, the structure with a motor or an electromotor is most common with a heat dissipation fan, an oil bearing is arranged in a shaft barrel of the fan, a fan hub with a plurality of blades and an axle center is correspondingly pivoted with the axle center through the axle center, thereby preventing the axle center or the shaft barrel from being worn due to rotation through the bearing, and only the bearing needs to be replaced if the abrasion is excessive.
In addition, through selecting the oil-containing bearing with oil-containing characteristic, the lubricating grease stored in the oil-containing bearing can further reduce the abrasion damage of the axle center and the bearing, but because the lubricating grease is thrown outwards under the action of centrifugal force when the axle center rotates, when all the lubricating grease is thrown out, the axle center and the bearing are abraded to generate abnormal sound or generate the clamping state of the axle center and the bearing, and finally the cooling fan is damaged.
How to prevent grease from being thrown out and to increase the service life of the cooling fan is the most important improvement goal of the industry.
Disclosure of Invention
Accordingly, in order to solve the above-mentioned drawbacks of the prior art, a main object of the present invention is to provide a bearing structure capable of refluxing the lubricating grease of the bearing and increasing the service life of the bearing.
Still another object of the present invention is to provide a cooling fan having a bearing structure that can reflow the lubricating grease of the bearing and increase the service life of the bearing.
To achieve the above object, the present invention provides a bearing structure comprising: the body is provided with a first end face, a second end face and an inclined oil guide face, the first end face is provided with a shaft hole, the shaft hole axially penetrates through the body and is connected with the first end face and the second end face, the inclined oil guide face is obliquely arranged on the first end face, and two ends of the inclined oil guide face are respectively connected with the first end face and the shaft hole.
To achieve the above object, the present invention provides a heat dissipation fan, comprising: a fan frame, a bearing structure, a stator set, a rotor set;
the fan frame extends vertically to a shaft, and a receiving space is provided in the shaft.
The bearing structure is arranged in the accommodating space, and the bearing structure comprises: a body; the body is provided with a first end face, a second end face and an inclined oil guiding face, the first end face is provided with a shaft hole, the shaft hole axially penetrates through the body and is connected with the first end face and the second end face, and two ends of the inclined oil guiding face are respectively connected with the first end face and the shaft hole.
The stator group is sleeved on the outer side of the shaft cylinder; the rotor set has a hub and a shaft, a plurality of blades are disposed around the hub, and the shaft is inserted into the shaft hole and pivoted to the body.
The bearing structure and the cooling fan of the present invention can make the lubricating grease thrown out of the bearing flow back to the bearing along the inclined oil guiding surface and stored again when the cooling fan stops running, thereby increasing the service life of the fan.
Drawings
FIG. 1 is a perspective view of a first embodiment of the present inventive bearing structure.
FIG. 2 is a first cross-sectional view of the present inventive bearing structure.
FIG. 3 is a cross-sectional view of a second embodiment of the present inventive bearing structure.
FIG. 4 is a cross-sectional view of a third embodiment of the present inventive bearing structure.
FIG. 5 is a cross-sectional view of a fourth embodiment of the present inventive bearing structure.
FIG. 6 is a sectional view of a first embodiment of the heat dissipation fan.
Symbol description
Bearing structure 1
Body 11
First end face 111
Second end face 112
Inclined oil guiding surface 113
Shaft hole 114
Axial oil guide groove 115
First groove 116
Radial oil guide groove 117
Second groove 118
Radiator fan 2
Fan frame 21
Shaft cylinder 211
Accommodation space 212
Stator group 22
Silicon steel sheet 221
Coil 222
Rotor set 23
Hub 231
Axle center 232
Fan blade 233
Lubricating grease 3
Detailed Description
The above objects of the present invention, as well as the structural and functional characteristics thereof, will be described in terms of the preferred embodiments of the present invention as illustrated in the accompanying drawings.
Referring to fig. 1 and 2, which are perspective and cross-sectional views of a first embodiment of the bearing structure of the present invention, as shown in the drawings, the bearing structure 1 of the present invention comprises: a body 11;
the body 11 has a first end surface 111, a second end surface 112, and an inclined oil guiding surface 113, the first end surface 111 has a shaft hole 114, the shaft hole 114 axially penetrates the body 11 and connects the first end surface 111 and the second end surface 112, the inclined oil guiding surface 113 is obliquely disposed on the first end surface 111, and two ends of the inclined oil guiding surface 113 are respectively connected with the first end surface 111 and the shaft hole 114.
The outer periphery of the body 11 further has a plurality of axial oil guiding grooves 115, and the axial oil guiding grooves 115 are configured to extend axially along the body 11.
Please refer to fig. 3, which is a cross-sectional view of a second embodiment of the bearing structure of the present invention, as shown in the drawings, the partial structure of the present embodiment is the same as that of the first embodiment, and will not be described herein, but the difference between the present embodiment and the first embodiment is that the main body 11 further has a first groove 116 and a plurality of radial oil guiding grooves 117, the first groove 116 is disposed on the outer side of the first end surface 111 corresponding to the shaft hole 114, the radial oil guiding grooves 117 are disposed on the first and second end surfaces 111, 112, and one end of the radial oil guiding grooves 117 disposed on the first end surface 111 is connected with the first groove 116.
Please refer to fig. 4, which is a cross-sectional view of a third embodiment of the bearing structure of the present invention, as shown in the drawing, the partial structure of the present embodiment is the same as that of the first embodiment, and will not be described herein, but the difference between the present embodiment and the first embodiment is that the main body 11 further has a second groove 118, the second groove 118 is concavely disposed on the second end surface 112 from the second end surface 112 toward the first end surface 111, and the second groove 118 is annularly disposed outside the shaft hole 114 and parallel to the shaft hole 114.
Please refer to fig. 5, which is a cross-sectional view of a fourth embodiment of the bearing structure of the present invention, as shown in the drawing, a part of the structure of the present embodiment is the same as that of the third embodiment, and will not be described herein, but the difference between the present embodiment and the third embodiment is that the main body 11 further has a plurality of radial oil guiding grooves 117, the radial oil guiding grooves 117 are disposed on the first and second end surfaces 111, 112, and a part of the radial oil guiding grooves 117 disposed on the second end surface 112 are respectively connected to the shaft hole 114, the second groove 118 and the axial oil guiding groove 115.
Referring to fig. 6, which is a cross-sectional view of a first embodiment of the cooling fan according to the present invention, as shown in the drawing, the bearing structure in this embodiment may be any of the first to fourth embodiments of the bearing structure, and the bearing structure 1 in this embodiment is illustrated by the first embodiment of the bearing structure, but not limited to, and the cooling fan 2 includes: a fan frame 21, a bearing structure 1, a stator set 22, a rotor set 23;
the fan frame 21 extends vertically to a shaft 211, and a containing space 212 is provided inside the shaft 211; the bearing structure 1 is disposed in the accommodating space 212, and the bearing structure 1 has: a body 11;
the body 11 has a first end surface 111, a second end surface 112, and an inclined oil guiding surface 113, the first end surface 111 has a shaft hole 114, the shaft hole 114 axially penetrates the body 11 and connects the first end surface 111 and the second end surface 112, the inclined oil guiding surface 113 is obliquely disposed on the first end surface 111, and two ends of the inclined oil guiding surface 113 are respectively connected with the first end surface 111 and the shaft hole 114.
The stator set 22 is sleeved outside the shaft tube 211, the stator set 22 is provided with a plurality of silicon steel sheets 221, and a plurality of coils 222 are wound outside the silicon steel sheets 221; the rotor set 23 has a hub 231 and a shaft 232, a plurality of blades 233 are disposed around the hub 231, and the shaft 232 is pivoted to the body 11 through the shaft hole 114.
Referring to fig. 1-5, the bearing structure and the cooling fan of the present invention mainly uses the inclined oil guiding surface 113 disposed on the first end surface 111 of the bearing structure 1 to make the lubricating grease 3 thrown out during the operation of the cooling fan 2 flow back to the main body 11 or the shaft hole 114 along the inclined oil guiding surface 113 for re-lubrication or storage.
The main purpose of the arrangement of the first recess 116 in the third embodiment of the bearing structure 1 is: the bearing structure 1 can be prevented from being assembled reversely (fool-proof means).
At least one radial oil guiding groove 117 or any radial oil guiding groove 117 formed on the second end face 112 of the main body 11 is concavely arranged at the first end face 111 (as shown in fig. 5), so that the second groove 118 forms an oil storage groove with an aerodynamic oil storage function, when the second groove 118 is arranged in the shaft cylinder 211, the boundary between the open end of the second groove 118 and the accommodating space 212 inside the shaft cylinder 211 of the fan frame 21 can store oil, the closed end of the second groove 118 can store air, when the temperature of the cooling fan 2 rises during operation, the air at the closed end of the second groove 118 expands to push out the lubricating grease 3, and when the cooling fan 2 does not operate, the temperature drops and the air contracts to suck the lubricating grease 3 into the second groove 118.
Claims (8)
1. A bearing structure, comprising:
the body is provided with a first end face, a second end face and an inclined oil guide face, the first end face is provided with a shaft hole, the shaft hole axially penetrates through the body and is connected with the first end face and the second end face, the inclined oil guide face is obliquely arranged on the first end face, and two ends of the inclined oil guide face are respectively connected with the first end face and the shaft hole;
the body is also provided with a second groove, the second groove is concavely arranged on the second end face from the second end face to the first end face, and the second groove is annularly arranged outside the shaft hole and is parallel to the shaft hole.
2. The bearing structure of claim 1, wherein the body outer periphery further has a plurality of axial oil grooves configured to extend axially along the body.
3. The bearing structure of claim 1, further comprising a first groove and a plurality of radial oil guiding grooves, wherein the first groove is disposed on the first end surface, the radial oil guiding grooves are disposed on the first end surface and the second end surface, and one end of the radial oil guiding groove disposed on the first end surface is connected with the first groove.
4. The bearing structure of claim 2, wherein the body further has a plurality of radial oil grooves disposed on the first end surface and the second end surface, and a portion of the radial oil grooves disposed on the second end surface are respectively connected to the shaft hole, the second groove and the axial oil groove.
5. A heat radiation fan, characterized by comprising:
a fan frame, a shaft tube is vertically extended, and an accommodating space is arranged in the shaft tube;
a bearing structure, set up in this accommodation space, this bearing structure has:
the body is provided with a first end face, a second end face and an inclined oil guide face, the first end face is provided with a shaft hole, the shaft hole axially penetrates through the body and is connected with the first end face and the second end face, the inclined oil guide face is obliquely arranged on the first end face, and two ends of the inclined oil guide face are respectively connected with the first end face and the shaft hole; the body is also provided with a second groove which is concavely arranged on the second end face from the second end face to the first end face, and the second groove is annularly arranged outside the shaft hole and is parallel to the shaft hole;
the stator group is sleeved outside the shaft cylinder;
the rotor set is provided with a hub and is vertically provided with an axle center, a plurality of fan blades are arranged around the hub in a surrounding mode, and the axle center penetrates through the axle hole and is pivoted with the body.
6. The cooling fan as claimed in claim 5, wherein the outer circumference of the body further has a plurality of axial oil grooves configured to extend axially along the body.
7. The cooling fan as claimed in claim 5, further comprising a first groove and a plurality of radial oil guiding grooves, wherein the first groove is disposed on the first end surface, the radial oil guiding grooves are disposed on the first end surface and the second end surface, and one end of the radial oil guiding groove disposed on the first end surface is connected with the first groove.
8. The cooling fan of claim 6, wherein the body further has a second groove and a plurality of radial oil guiding grooves, the second groove is concavely disposed on the second end face from the second end face toward the first end face, the second groove is annularly disposed outside the shaft hole and is parallel to the shaft hole, the radial oil guiding grooves are disposed on the first end face and the second end face, and the radial oil guiding grooves partially disposed on the second end face are respectively connected with the shaft hole and the second groove and the axial oil guiding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952242.XA CN107989819B (en) | 2016-10-26 | 2016-10-26 | Bearing structure and cooling fan thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952242.XA CN107989819B (en) | 2016-10-26 | 2016-10-26 | Bearing structure and cooling fan thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107989819A CN107989819A (en) | 2018-05-04 |
| CN107989819B true CN107989819B (en) | 2023-12-05 |
Family
ID=62029480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610952242.XA Active CN107989819B (en) | 2016-10-26 | 2016-10-26 | Bearing structure and cooling fan thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107989819B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10339293A (en) * | 1997-06-05 | 1998-12-22 | Japan Servo Co Ltd | Fan bearing structure |
| TW200736506A (en) * | 2006-03-31 | 2007-10-01 | Delta Electronics Inc | Fan, bearing structure and sleeve bearing thereof |
| CN101055002A (en) * | 2006-04-11 | 2007-10-17 | 台达电子工业股份有限公司 | Fan, bearing structure and its oil bearing |
| CN103104536A (en) * | 2011-11-10 | 2013-05-15 | 奇鋐科技股份有限公司 | Bearing structure and heat dissipation fan thereof |
| CN203962453U (en) * | 2014-05-28 | 2014-11-26 | 东莞市富士多实业投资有限公司 | A kind of bearing |
| JP2016164436A (en) * | 2015-03-06 | 2016-09-08 | ミネベア株式会社 | Bearing structure and blower |
| CN206206249U (en) * | 2016-10-26 | 2017-05-31 | 深圳兴奇宏科技有限公司 | Bearing arrangement and its radiator fan |
-
2016
- 2016-10-26 CN CN201610952242.XA patent/CN107989819B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10339293A (en) * | 1997-06-05 | 1998-12-22 | Japan Servo Co Ltd | Fan bearing structure |
| TW200736506A (en) * | 2006-03-31 | 2007-10-01 | Delta Electronics Inc | Fan, bearing structure and sleeve bearing thereof |
| CN101055002A (en) * | 2006-04-11 | 2007-10-17 | 台达电子工业股份有限公司 | Fan, bearing structure and its oil bearing |
| CN103104536A (en) * | 2011-11-10 | 2013-05-15 | 奇鋐科技股份有限公司 | Bearing structure and heat dissipation fan thereof |
| CN203962453U (en) * | 2014-05-28 | 2014-11-26 | 东莞市富士多实业投资有限公司 | A kind of bearing |
| JP2016164436A (en) * | 2015-03-06 | 2016-09-08 | ミネベア株式会社 | Bearing structure and blower |
| CN206206249U (en) * | 2016-10-26 | 2017-05-31 | 深圳兴奇宏科技有限公司 | Bearing arrangement and its radiator fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107989819A (en) | 2018-05-04 |
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