GB2327986A - Bearing mounting structure for the fan motor - Google Patents
Bearing mounting structure for the fan motor Download PDFInfo
- Publication number
- GB2327986A GB2327986A GB9811745A GB9811745A GB2327986A GB 2327986 A GB2327986 A GB 2327986A GB 9811745 A GB9811745 A GB 9811745A GB 9811745 A GB9811745 A GB 9811745A GB 2327986 A GB2327986 A GB 2327986A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bearing
- axial tube
- mounting structure
- fan motor
- bearing mounting
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/042—Housings for rolling element bearings for rotary movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Abstract
In accordance with the present invention, the bearing mounting structure for a fan motor includes a frame, a bearing and at least one fixer. The frame includes an axial tube 11 in which the bearing is fixed by the fixer 2. The bearing is mounted inside the axial tube by means of clearance fit and the fixer is mounted inside the axial tube by means of tight fit to secure the bearing to the frame.
Description
2327986 IRFARING MOINTING STRUCTURE FOR THF FAN MOTOR B ACKGROUND OF
1WWM0N
Field of the Invention
The pm invention is related to a bearing structure for a fan motor, and more particularly to a single bearing mounting structure for a fan motor.
Doedution of the Related-Art ROC Patent Publication No. 302056 entitled -Single Ball Bearing S% Structure For Fan Axis" discloses a ball bearing supporting structure having a ball bearing and an oil bearing. The fan rotor is supported by a ban bearing and an oil bearing. Accordingly, it requires that the =terlines of the ban bearing and the oil bearing be aligned with each other. Otherwise, it will result in vibration and noises when the rotor rotates. The bearing cannot be mounted by mews of tight fit; or the bean will be damaged due to deformation and ffiction. When the bearing a mounted by means of clearance fi it requires another oil bearing to assist the supporting of the bearin& If no the bearing of the rotor cannot be famly mounted for rotation. Besides, it is also high manufacturing cost and time-consuming to manufacture the above structure. Such a conventional assembly manner causes many problems in this arL Therefore, there is a need in the art of the fan motor to overcome the above problems of the bearing mounting structure.
SUMY OF THE DJVENITON The object of the present invention is to provide a bearing mounting structure for a fan motor having a single bearing to be mounted such that the problem of deviation of the centerline is eliminated.
Another object of the claimed invention is to provide a single bearing mounting 1 struct= for a fan motor which is convenient for assembly so as to lower the manufacturing cost.
A further object of the present invention is to provide a single bearing inowiting structure for a fan motor of which the thickness is minimized such that the thickness of the fan motor is also mffii In accordance with the present invention, the bearing mounting sumb= for a fan motor mainly a firame, a b=mg and at 1 one fixer 11o fi=e includes an axial tube m which the bearing is fixed by the fixer The bearing is mounted inside the axial tube by means of clearance fit and the fixer is mounted inside the axial Uke by means of tight fit to secure the bearing to the firame.
BRIEF DESCRIPTIONS OF TBE DRAWINGS
For a better understanding of the present invention as well as other objects, advantages, and fluther fes thereof, reference is made to the following detailed descriptions to be read in conjunction with accompanying drawings, wherein
Fig. 1 is a perspective view of the embodiment of the bearing mounting structure for a fan motor in accordance with the present invention; Fig. 2 shows the top view of an assembled bearing mounting structure for a fan motor, Fig. 3 shows a cross-section view along line 3-3 of Fig. 2; Fig. 4 is a partially enlarged view of Fig. 3; and Fig. 5 is a cross-section view in accordance with the second embodiment of the present invention.
DETAILú1) DESCRIPTION OF THE DMEb411ON
Referring to Fig. 1, it shows a perspective view of the first embodiment in 2 accordance with the present invention. The bearing mounting structure for a fan motor mainly a flanic 1, a beaffig 12 and at least one fl= 2. Ile franic 1 inchides an axial tube 11 in which the bearing 12 is fn-ed by the fl= 2. The bearing 12 can be a ball b oil bearin& or brass b The fix= 2 is made of plastic or metal and has an outer diameter. slightly lager than the inner diameter of the axial tube. Referring to Figs. 2, 3 and 4, the bearing 12 is mounted inside the axial tube 11 by means of cleamcc fit and the fixer 2 is mounted inside the mU tube 11 by me= of tight fit to secure the bearing 12 to the frame 1. The bearing 12 is sandwiched between the upper and lower fixers 2.
Referring to Fig, 5, it shows the second embodiment in accordance with the present invention. One end of the axial tube 11 has a protrusion 13 extending inwardly to support the bearing 12. The bearing 12 is disposed inside the xdal tube 11 against the protrusion 13 and then the fixer 2 pressed into the axial tube 11 to secure the bearing 12 inside the axial tube 11 between the protrusion 13 and the fixer 2.
It will be appreciated that the present invention only requires a single beafing; therefore, the problem of centerlinc deviation for two bemngs is eliminated and the structure thereof is more convenient for assembly. Besides, since the number of bearings is reduced, the manufacturing cost is also lowered and the thickness of the overall structure is also reduced. The bearing mounting structure in accordance with the present invention is more suitable for use in the miniature fans.
Although the invention has been dcscnbcd in relation to the prefemd embodiments, it is to be understood that other modifications and variations can be nude without departing from the spirit and scope of the invention as hereinafter claimed.
3
Claims (5)
1. A bearing mounting structure for a fan motor comprising: a franc having an axial tube with an inner diameter, two fixers having a first outer diameter sli larger than the inner diameter of the axial tube, the two fixers being pressed inside the axial tube; and a bearing disposed between the two fixers inside the axial tub.
2.
The bearing mounting structure as claimed in Claim 1, wherein the bearing is selected from a ball bearing, oil bearing and brass bearing.
3. The bearing mounting structure as claimed in Claim 1, wherein the fixers are made. of plastic material.
4. The bearing mounting structure as claimed in Claim 1, wherein the fixers are made of metal material.
5. A bearing mounting structure for a fan motor comprising: a frame having an axial tube with an inner diameter, a protrusion extending inwardly from the axial tube., a bearing disposed against the protrusion; and a fixer having a first outer diameter slightly larger ffim the inner diameter of the axial tube, the fixer being pressed inside the axial tube against the bearing such that the bearing is secured inside the axial tube.
4
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US90401997A | 1997-07-31 | 1997-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9811745D0 GB9811745D0 (en) | 1998-07-29 |
| GB2327986A true GB2327986A (en) | 1999-02-10 |
Family
ID=25418393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9811745A Withdrawn GB2327986A (en) | 1997-07-31 | 1998-06-01 | Bearing mounting structure for the fan motor |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE29810400U1 (en) |
| GB (1) | GB2327986A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2851377A1 (en) * | 2003-02-18 | 2004-08-20 | Mitsubishi Electric Corp | DYNAMOELECTRIC MACHINE |
| GB2442475A (en) * | 2006-10-04 | 2008-04-09 | Sunonwealth Electr Mach Ind Co | Micro fan |
| CN103855845A (en) * | 2014-03-28 | 2014-06-11 | 浙江泰达微电机有限公司 | Micro-motor rotary shaft protection mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1521668A (en) * | 1977-06-09 | 1978-08-16 | Cam Gears Ltd | Securing a member in a tubular housing |
| GB1558933A (en) * | 1976-06-30 | 1980-01-09 | Siemens Ag | Locking washer |
| US4235489A (en) * | 1978-08-15 | 1980-11-25 | Skf Industries, Inc. | External device for selectively converting a pillow block between free and held positions |
| US4364615A (en) * | 1980-09-08 | 1982-12-21 | The Bendix Corporation | Retaining ring |
| GB2169376A (en) * | 1985-01-08 | 1986-07-09 | Skf Svenska Kullagerfab Ab | Preventing movement of an article along a shaft or bore |
| GB2178804A (en) * | 1985-06-20 | 1987-02-18 | Salter & Co Ltd G | Motor end cap bearing assembly |
-
1998
- 1998-06-01 GB GB9811745A patent/GB2327986A/en not_active Withdrawn
- 1998-06-10 DE DE29810400U patent/DE29810400U1/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1558933A (en) * | 1976-06-30 | 1980-01-09 | Siemens Ag | Locking washer |
| GB1521668A (en) * | 1977-06-09 | 1978-08-16 | Cam Gears Ltd | Securing a member in a tubular housing |
| US4235489A (en) * | 1978-08-15 | 1980-11-25 | Skf Industries, Inc. | External device for selectively converting a pillow block between free and held positions |
| US4364615A (en) * | 1980-09-08 | 1982-12-21 | The Bendix Corporation | Retaining ring |
| GB2169376A (en) * | 1985-01-08 | 1986-07-09 | Skf Svenska Kullagerfab Ab | Preventing movement of an article along a shaft or bore |
| GB2178804A (en) * | 1985-06-20 | 1987-02-18 | Salter & Co Ltd G | Motor end cap bearing assembly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2851377A1 (en) * | 2003-02-18 | 2004-08-20 | Mitsubishi Electric Corp | DYNAMOELECTRIC MACHINE |
| GB2442475A (en) * | 2006-10-04 | 2008-04-09 | Sunonwealth Electr Mach Ind Co | Micro fan |
| GB2442475B (en) * | 2006-10-04 | 2011-06-01 | Sunonwealth Electr Mach Ind Co | Micro fan |
| CN103855845A (en) * | 2014-03-28 | 2014-06-11 | 浙江泰达微电机有限公司 | Micro-motor rotary shaft protection mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| DE29810400U1 (en) | 1998-09-10 |
| GB9811745D0 (en) | 1998-07-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |