CN203594702U - Motor and motor bearing structure thereof - Google Patents
Motor and motor bearing structure thereof Download PDFInfo
- Publication number
- CN203594702U CN203594702U CN201320652866.1U CN201320652866U CN203594702U CN 203594702 U CN203594702 U CN 203594702U CN 201320652866 U CN201320652866 U CN 201320652866U CN 203594702 U CN203594702 U CN 203594702U
- Authority
- CN
- China
- Prior art keywords
- opening
- motor
- tapered portion
- diameter
- bearing structure
- 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.)
- Expired - Fee Related
Links
- 230000004323 axial length Effects 0.000 claims abstract description 12
- 230000002265 prevention Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Motor Or Generator Frames (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model relates to a motor and motor bearing structure thereof. The motor includes: a base having a shaft tube; a motor bearing structure, set up in the central siphon of this base, this motor bearing structure includes two at least bearings, and these two at least bearings include an at least oily bearing, and this at least oily bearing has a shaft hole and an axial length L, and this shaft hole includes an at least convergent portion and a supporting part, this convergent portion of this supporting part intercommunication, and this supporting part has a support length X, and this support length X satisfies the relational expression: x is more than or equal to L/15 and less than or equal to 2L/3; the rotating shaft penetrates through the shaft hole of the at least one oil-retaining bearing, and the supporting part of the shaft hole supports the rotating shaft; and a stator arranged outside the shaft tube of the base. Therefore, the supporting area provided by the supporting part can be ensured to be enough to maintain the stability of the rotating shaft, and the friction area between the rotating shaft and the supporting part can be reduced at the same time.
Description
Technical Field
The utility model relates to a motor and motor bearing structure thereof.
Background
In order to maintain the stability of the rotating shaft during rotation, the conventional motor needs to use a bearing structure to support the rotating shaft. For example, taiwan patent No. 439883 discloses a "dual-bearing heat dissipation fan", which uses a ball bearing and an oil-retaining bearing to support the rotating shaft of the impeller. However, although the bearing structure can provide a sufficient supporting area to support the rotating shaft, the problem of friction between the bearing structure and the rotating shaft is not considered in the structural design, so that the abnormal wear and noise between the bearing structure and the rotating shaft often occur due to too large friction area, and the stability of the rotating shaft during rotation is further affected.
Therefore, there is a need to provide a motor and a motor bearing structure thereof, which are innovative and advanced to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a motor, this motor includes: a base having a shaft tube; a motor bearing structure, set up in the central siphon of this base, this motor bearing structure includes two at least bearings, and these two at least bearings include an at least oily bearing, and this at least oily bearing has a shaft hole and an axial length L, and this shaft hole includes an at least convergent portion and a supporting part, this convergent portion of this supporting part intercommunication, and this supporting part has a support length X, and this support length X satisfies the relational expression: x is more than or equal to L/15 and less than or equal to 2L/3; the rotating shaft penetrates through the shaft hole of the at least one oil-retaining bearing, and the supporting part of the shaft hole supports the rotating shaft; and a stator arranged outside the shaft tube of the base.
The motor as described above, wherein the shaft hole includes a first tapering portion and a second tapering portion, the second tapering portion is opposite to the first tapering portion, and the supporting portion is located between the first tapering portion and the second tapering portion.
In the above-mentioned motor, the at least one oil-retaining bearing further has a first end face and a second end face, the shaft hole communicates the first end face and the second end face, the aperture of the first tapered portion is tapered from the first end face to the supporting portion, and the aperture of the second tapered portion is tapered from the second end face to the supporting portion.
In the above-mentioned motor, the first tapered portion has a first opening and a second opening, the first opening is communicated with the first end surface, the second opening is communicated with the supporting portion, and a diameter of the second opening is equal to an aperture of the supporting portion.
In the above motor, the second tapered portion has a third opening and a fourth opening, the third opening is communicated with the second end face, the fourth opening is communicated with the supporting portion, and a diameter of the fourth opening is equal to an aperture of the supporting portion.
The motor as described above, wherein the diameter of the third opening of the second tapered portion is equal to the diameter of the first opening of the first tapered portion.
The motor as described above, wherein the supporting portion has a single aperture.
The motor as described above, wherein the at least one oil-retaining bearing has an axial length L of 1 to 6 mm.
Another object of the present invention is to provide a motor bearing structure, which includes at least two bearings, wherein the at least two bearings include at least one oil-retaining bearing, the at least one oil-retaining bearing has a shaft hole and an axial length L, the shaft hole includes at least one tapering portion and a supporting portion, the supporting portion communicates with the tapering portion, the supporting portion has a supporting length X, and the supporting length X satisfies the relationship: x is more than or equal to L/15 and less than or equal to 2L/3.
The motor bearing structure as described above, wherein the shaft hole includes a first tapering portion and a second tapering portion, the second tapering portion is opposite to the first tapering portion, and the support portion is located between the first tapering portion and the second tapering portion.
The bearing structure of the motor as above, wherein the at least one oil-retaining bearing further has a first end surface and a second end surface, the shaft hole communicates the first end surface and the second end surface, the aperture of the first tapered portion is tapered from the first end surface to the supporting portion, and the aperture of the second tapered portion is tapered from the second end surface to the supporting portion.
The motor bearing structure as above, wherein the first tapered portion has a first opening and a second opening, the first opening is communicated with the first end surface, the second opening is communicated with the supporting portion, and a diameter of the second opening is equal to a diameter of the supporting portion.
In the above-mentioned motor bearing structure, the second tapered portion has a third opening and a fourth opening, the third opening is communicated with the second end surface, the fourth opening is communicated with the supporting portion, and a diameter of the fourth opening is equal to an aperture of the supporting portion.
The motor bearing structure as described above, wherein the diameter of the third opening of the second tapered portion is equal to the diameter of the first opening of the first tapered portion.
The motor bearing structure as described above, wherein the supporting portion has a single aperture.
The motor bearing structure as described above, wherein the axial length L of the at least one oil-retaining bearing is 1 to 6 mm.
The utility model discloses can ensure that the supporting area that this supporting part of this at least one oiliness bearing provided is enough to maintain the stability of this pivot to can reduce the friction area and the noise prevention production of this pivot and this supporting part simultaneously.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 is a structural sectional view of the motor of the present invention;
fig. 2 is a perspective view of the oil-retaining bearing of the motor bearing structure of the present invention; and
fig. 3 is a structural sectional view of an oil retaining bearing of the motor bearing structure of the present invention.
Main element number description:
10 Motor
11 base
111 axle tube
12 motor bearing structure
12A bearing, oil-retaining bearing
12B bearing
120a first end face
120b second end face
121 axle hole
122 tapered portion, first tapered portion
122a first opening
122b second opening
123 second taper
123a third opening
123b fourth opening
124 support part
13 rotating shaft
14 stator
15 wheel hub
D1 diameter of first opening
D2 diameter of second opening
D3 diameter of third opening
D4 diameter of fourth opening
Aperture of HD support
L axial length
Length of X support
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
Referring to fig. 1, a cross-sectional view of the motor of the present invention is shown. The motor 10 of the present invention includes a base 11, a motor bearing structure 12, a shaft 13 and a stator 14. The base 11 has a shaft tube 111.
Fig. 2 shows a perspective view of the oil-retaining bearing of the motor bearing structure of the present invention. Fig. 3 shows a structural sectional view of an oil-impregnated bearing of the motor bearing structure of the present invention. Referring to fig. 1, 2 and 3, the motor bearing structure 12 is disposed in the shaft tube 111 of the base 11, and the stator 14 is disposed outside the shaft tube 111 of the base 11. The motor bearing structure 12 includes at least two bearings 12A, 12B, the at least two bearings 12A, 12B include at least one oil bearing 12A, and the other bearing 12B may be a ball bearing or an oil bearing.
The at least one oil-retaining bearing 12A has a first end face 120a, a second end face 120b, a shaft hole 121 and an axial length L. The shaft hole 121 communicates the first end face 120a and the second end face 120 b. The shaft hole 121 includes at least a tapered portion 122 and a supporting portion 124, and the supporting portion 124 is connected to the tapered portion 122. In the present embodiment, the shaft hole 121 includes a first tapered portion 122, a second tapered portion 123 and the supporting portion 124.
The first tapered portion 122 has a bore diameter tapering from the first end surface 120a to the support portion 124, and the first tapered portion 122 has a first opening 122a and a second opening 122 b. The first opening 122a communicates with the first end surface 120a, the second opening 122b communicates with the supporting portion 124, in the embodiment, the diameter D1 of the first opening 122a is larger than the diameter D2 of the second opening 122b, and the diameter D2 of the second opening 122b is equal to the hole diameter HD of the supporting portion 124.
The second tapering portion 123 is opposite to the first tapering portion 122, and the first tapering portion 122 and the second tapering portion 123 are disposed at the upper and lower sides of the supporting portion 124. The aperture of the second tapered portion 123 tapers from the second end surface 120b to the supporting portion 124, and the second tapered portion 123 has a third opening 123a and a fourth opening 123 b. The third opening 123a communicates with the second end face 120b, the fourth opening 123b communicates with the supporting portion 124, in the embodiment, the diameter D4 of the fourth opening 123b is equal to the aperture HD of the supporting portion 124, and the diameter D3 of the third opening 123a is equal to the diameter D1 of the first opening 122a of the first tapered portion 122. In addition, the length of the second tapered portion 123 may be different from the length of the first tapered portion 122.
The supporting portion 124 is located between the first tapering portion 122 and the second tapering portion 123, and the supporting portion 124 has a single aperture HD and a supporting length X. In the present embodiment, the support length X satisfies the relation: l/15 is less than or equal to X is less than or equal to 2L/3, and the axial length L is preferably 1 to 6 mm.
The rotating shaft 13 is disposed through the shaft hole 121 of the at least one oil-retaining bearing 12A, and the supporting portion 124 of the shaft hole 121 supports the rotating shaft 13. In this embodiment, one end of the shaft 13 is connected to a hub 15. Alternatively, in another embodiment, an impeller (not shown) may be connected to one end of the shaft 13.
The utility model discloses be less than or equal to X at L/15 with the control of the support length X of this supporting part 124 and be less than or equal to 2L/3's scope, consequently, can ensure that the support area that this supporting part 124 provided is enough to maintain the stability of this pivot 13 to can reduce the friction area and the noise prevention production of this pivot 13 and this supporting part 124 simultaneously, and then can avoid the stability of friction problem influence pivot when rotating.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (16)
1. A motor, characterized in that the motor comprises:
a base having a shaft tube;
a motor bearing structure, set up in the base in the axis pipe, motor bearing structure includes two at least bearings, two at least the bearing includes an at least oiliness bearing, at least one oiliness bearing has a shaft hole and an axial length (L), the shaft hole includes an at least convergent portion and a supporting part, the supporting part intercommunication convergent portion, the supporting part has a supporting length (X), supporting length (X) satisfies the relational expression: x is more than or equal to L/15 and less than or equal to 2L/3;
the rotating shaft penetrates through the shaft hole of at least one oil-containing bearing, and the supporting part of the shaft hole supports the rotating shaft; and
and the stator is arranged on the outer side of the shaft tube of the base.
2. The motor of claim 1, wherein the shaft bore includes a first tapered portion and a second tapered portion, the second tapered portion being opposite the first tapered portion, the support portion being located between the first tapered portion and the second tapered portion.
3. The motor of claim 2, wherein at least one of the oil-retaining bearings further has a first end face and a second end face, the shaft hole communicates with the first end face and the second end face, the first tapered portion has a bore diameter that tapers from the first end face toward the support portion, and the second tapered portion has a bore diameter that tapers from the second end face toward the support portion.
4. The motor of claim 3, wherein the first tapered portion has a first opening and a second opening, the first opening communicates with the first end surface, the second opening communicates with the support portion, and a diameter of the second opening is equal to a bore diameter of the support portion.
5. The motor of claim 4, wherein the second tapered portion has a third opening and a fourth opening, the third opening communicates with the second end surface, the fourth opening communicates with the support portion, and the diameter of the fourth opening is equal to the diameter of the support portion.
6. The motor of claim 5, wherein a diameter of the third opening of the second tapered portion is equal to a diameter of the first opening of the first tapered portion.
7. The motor of claim 1, wherein the support portion has a single aperture.
8. The motor according to claim 1, wherein the axial length (L) of at least one of the oil-impregnated bearings is 1 to 6 mm.
9. The utility model provides a motor bearing structure, its characterized in that, motor bearing structure includes two at least bearings, two at least bearings include an oil bearing, and at least one oil bearing has a shaft hole and an axial length (L), the shaft hole includes at least one convergent portion and a supporting part, the supporting part intercommunication convergent portion, the supporting part has a support length (X), support length (X) satisfies the relation: x is more than or equal to L/15 and less than or equal to 2L/3.
10. The motor bearing structure of claim 9, wherein the shaft bore includes a first tapered portion and a second tapered portion, the second tapered portion being opposite the first tapered portion, the support portion being located between the first tapered portion and the second tapered portion.
11. The motor bearing structure of claim 10, wherein at least one of the oil-retaining bearings further has a first end face and a second end face, the shaft hole communicates with the first end face and the second end face, the first tapered portion has a bore diameter that tapers from the first end face toward the support portion, and the second tapered portion has a bore diameter that tapers from the second end face toward the support portion.
12. The motor bearing structure of claim 11, wherein the first tapered portion has a first opening and a second opening, the first opening communicates with the first end surface, the second opening communicates with the support portion, and a diameter of the second opening is equal to a bore diameter of the support portion.
13. The motor bearing structure of claim 12, wherein the second tapered portion has a third opening and a fourth opening, the third opening communicates with the second end surface, the fourth opening communicates with the support portion, and the diameter of the fourth opening is equal to the diameter of the support portion.
14. The motor bearing structure of claim 13, wherein a diameter of the third opening of the second tapered portion is equal to a diameter of the first opening of the first tapered portion.
15. The motor bearing structure of claim 9, wherein the support portion has a single aperture.
16. The motor bearing arrangement according to claim 9, wherein the axial length (L) of at least one of the oil-impregnated bearings is 1 to 6 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102129401 | 2013-08-16 | ||
| TW102129401A TWI497880B (en) | 2013-08-16 | 2013-08-16 | Motor and its motor bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594702U true CN203594702U (en) | 2014-05-14 |
Family
ID=50675595
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320652866.1U Expired - Fee Related CN203594702U (en) | 2013-08-16 | 2013-10-22 | Motor and motor bearing structure thereof |
| CN201310498593.4A Pending CN104373467A (en) | 2013-08-16 | 2013-10-22 | Motor and motor bearing structure thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310498593.4A Pending CN104373467A (en) | 2013-08-16 | 2013-10-22 | Motor and motor bearing structure thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN203594702U (en) |
| TW (1) | TWI497880B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373467A (en) * | 2013-08-16 | 2015-02-25 | 建准电机工业股份有限公司 | Motor and motor bearing structure thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3582869B2 (en) * | 1994-11-29 | 2004-10-27 | Ｎｔｎ株式会社 | Sintered oil-impregnated bearing |
| JP4005670B2 (en) * | 1997-07-10 | 2007-11-07 | 日本電産コパル株式会社 | Axial fan motor |
| JP2004040926A (en) * | 2002-07-04 | 2004-02-05 | Minebea Co Ltd | Fan motor |
| CN1786495B (en) * | 2004-12-07 | 2010-05-05 | 松下电器产业株式会社 | Hydrodynamic bearing device, and spindle motor and information device using the same |
| TWM312118U (en) * | 2006-11-20 | 2007-05-11 | Simplo Technology Co Ltd | Heat-dissipation fan and dynamic-pressure bearing structure |
| TWI343690B (en) * | 2007-08-03 | 2011-06-11 | Foxconn Tech Co Ltd | Bearing structure of motor |
| CN201256328Y (en) * | 2008-09-01 | 2009-06-10 | 元山科技工业股份有限公司 | Motor apparatus |
| TWI440285B (en) * | 2011-03-18 | 2014-06-01 | Delta Electronics Inc | Fan and motor thereof |
| TWI497880B (en) * | 2013-08-16 | 2015-08-21 | Sunonwealth Electr Mach Ind Co | Motor and its motor bearing structure |
-
2013
- 2013-08-16 TW TW102129401A patent/TWI497880B/en active
- 2013-10-22 CN CN201320652866.1U patent/CN203594702U/en not_active Expired - Fee Related
- 2013-10-22 CN CN201310498593.4A patent/CN104373467A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373467A (en) * | 2013-08-16 | 2015-02-25 | 建准电机工业股份有限公司 | Motor and motor bearing structure thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201509075A (en) | 2015-03-01 |
| TWI497880B (en) | 2015-08-21 |
| CN104373467A (en) | 2015-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW200736506A (en) | Fan, bearing structure and sleeve bearing thereof | |
| CN204646988U (en) | A kind of combination bearing | |
| CN203594702U (en) | Motor and motor bearing structure thereof | |
| TWI345355B (en) | Bearing structure | |
| CN204512194U (en) | Cylinder roller bearing retainer | |
| CN103511550A (en) | Damper for high-speed oilless bearing rotor system | |
| CN206770406U (en) | One kind safeguards convenient outer ring split bearing | |
| CN103821825A (en) | Annular drum-shaped self-aligning roller bearing | |
| US8596874B2 (en) | Bearing in irregular shaped housings | |
| CN201627822U (en) | Tapered roller bearing | |
| CN105317832A (en) | Widened tapered roller bearing for stone sawing machine | |
| CN108679096A (en) | A kind of turbine spindle for generator is held | |
| TWM491738U (en) | Dynamic bearing structure and cooling fan | |
| AU2015101362A4 (en) | A Mounting structure for bearing on small-diameter shaft | |
| CN202971564U (en) | Double-row double-outer-ring roller bearing | |
| CN210423441U (en) | Three-section type oil-retaining bearing | |
| CN210265492U (en) | Novel rolling bearing for elevator | |
| CN201916347U (en) | Hydrodynamic pressure bearing | |
| TWI620874B (en) | Bearing structure and heat dissiating fan using the same | |
| TWM536288U (en) | Bearing structure and cooling fan thereof | |
| CN203717632U (en) | Bearing | |
| CN203257725U (en) | Heat-radiating fan with fluid dynamic bearing structure | |
| CN206419352U (en) | A kind of novel bearing inner ring structure | |
| US9353761B2 (en) | Oil return structure for fan | |
| CN202867582U (en) | Bearing seat structure with double ball strips |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20191022 |