CA2575653A1 - Electric motor having printed circuit board attached to stator and at least partially supporting bearing - Google Patents
Electric motor having printed circuit board attached to stator and at least partially supporting bearing Download PDFInfo
- Publication number
- CA2575653A1 CA2575653A1 CA002575653A CA2575653A CA2575653A1 CA 2575653 A1 CA2575653 A1 CA 2575653A1 CA 002575653 A CA002575653 A CA 002575653A CA 2575653 A CA2575653 A CA 2575653A CA 2575653 A1 CA2575653 A1 CA 2575653A1
- Authority
- CA
- Canada
- Prior art keywords
- bearing
- stator
- printed circuit
- circuit board
- electric motor
- 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.)
- Granted
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
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
Abstract
An electric motor that includes a stator, a rotor including a rotor shaft and a support member coupled to the stator. A first bearing is at least partially disposed within the support member and a printed circuit board is coupled to the stator. A second bearing is at least partially disposed within the printed circuit board. The first bearing and the second bearing cooperate to support the rotor shaft for rotation relative to the stator.
Claims (41)
1. An electric motor comprising:
a stator;
a rotor comprising a rotor shaft;
a first support member coupled to the stator;
a first bearing at least partially disposed within the first support member;
a printed circuit board including a board portion and an encasement portion that substantially encases the board portion, the printed circuit board coupled to the stator;
a second support member integrally-formed as a single piece with the encasement portion; and a second bearing at least partially disposed within and at least partially supported by the second support member, the first bearing and the second bearing cooperating to support the rotor shaft for rotation relative to the stator.
a stator;
a rotor comprising a rotor shaft;
a first support member coupled to the stator;
a first bearing at least partially disposed within the first support member;
a printed circuit board including a board portion and an encasement portion that substantially encases the board portion, the printed circuit board coupled to the stator;
a second support member integrally-formed as a single piece with the encasement portion; and a second bearing at least partially disposed within and at least partially supported by the second support member, the first bearing and the second bearing cooperating to support the rotor shaft for rotation relative to the stator.
2. An electric motor as set forth in claim 1 wherein the stator is arranged to define a C-frame motor.
3. An electric motor as set forth in claim 1 wherein the rotor comprises a rotor core and the rotor shaft comprises a first end on a first side of the core and a second end on a second side of the core, the second side opposite the first side, the first bearing coupled to the first end and the second bearing coupled to the second end.
4. An electric motor as set forth in claim 1 wherein each of the first bearing and the second bearing is one of a journal bearing and a roller bearing.
5. An electric motor as set forth in claim 1 wherein the printed circuit board comprises a bearing surface that defines an aperture sized to receive at least a portion of the second bearing.
6. An electric motor comprising:
a stator;
a rotor comprising a rotor shaft;
a support member coupled to the stator;
a first bearing at least partially disposed within the support member;
a printed circuit board coupled to the stator; and a second bearing at least partially disposed within the printed circuit board, the first bearing and the second bearing cooperating to support the rotor shaft for rotation relative to the stator, wherein the printed circuit board comprises a bearing surface that defines an aperture sized to receive at least a portion of the second bearing, and wherein the printed circuit board comprises a wear-resistant layer disposed between the bearing surface and the second bearing.
a stator;
a rotor comprising a rotor shaft;
a support member coupled to the stator;
a first bearing at least partially disposed within the support member;
a printed circuit board coupled to the stator; and a second bearing at least partially disposed within the printed circuit board, the first bearing and the second bearing cooperating to support the rotor shaft for rotation relative to the stator, wherein the printed circuit board comprises a bearing surface that defines an aperture sized to receive at least a portion of the second bearing, and wherein the printed circuit board comprises a wear-resistant layer disposed between the bearing surface and the second bearing.
7. An electric motor as set forth in claim 6 wherein the wear-resistant layer is plated to the bearing surface.
8. An electric motor as set forth in claim 1 wherein the electric motor further comprises a fastener connecting the first support member to the stator and the printed circuit board to the stator.
9. An electric motor as set forth in claim 8 wherein the fastener passes through the first support member and the printed circuit board.
10. An electric motor comprising:
a stator comprising a stator opening;
a rotor comprising a rotor shaft, the rotor disposed at least partially within the stator opening;
a support member comprising an inner surface and an outer surface, the stator disposed adjacent the inner surface;
a first bearing disposed at least partially within the support member;
a printed circuit board comprising an inner surface and an outer surface, the inner surface disposed adjacent the stator;
a second bearing directly supported by the printed circuit board, the first bearing and the second bearing cooperating to support the rotor shaft for rotation; and a fastener extending from the inner surface of the first bearing support to the inner surface of the printed circuit board such that the fastener attaches the support member, the stator, and the printed circuit board.
a stator comprising a stator opening;
a rotor comprising a rotor shaft, the rotor disposed at least partially within the stator opening;
a support member comprising an inner surface and an outer surface, the stator disposed adjacent the inner surface;
a first bearing disposed at least partially within the support member;
a printed circuit board comprising an inner surface and an outer surface, the inner surface disposed adjacent the stator;
a second bearing directly supported by the printed circuit board, the first bearing and the second bearing cooperating to support the rotor shaft for rotation; and a fastener extending from the inner surface of the first bearing support to the inner surface of the printed circuit board such that the fastener attaches the support member, the stator, and the printed circuit board.
11. An electric motor as set forth in claim 10 wherein the stator is arranged to define a C-frame motor.
12. An electric motor as set forth in claim 10 wherein the rotor comprises a rotor core and the rotor shaft comprises a first end on a first side of the core and a second end on a second side of the core, the second side opposite the first side, the first bearing coupled to the first end and the second bearing coupled to the second end.
13. An electric motor as set forth in claim 10 wherein each of the first bearing and the second bearing is one of a journal bearing and a roller bearing.
14. An electric motor as set forth in claim 10 wherein the printed circuit board comprises a bearing surface that defines an aperture sized to receive at least a portion of the second bearing.
15. An electric motor comprising:
a stator comprising a stator opening;
a rotor comprising a rotor shaft, the rotor disposed at least partially within the stator opening;
a support member comprising an inner surface and an outer surface, the stator disposed adjacent the inner surface;
a first bearing disposed at least partially within the support member;
a printed circuit board comprising an inner surface and an outer surface, the inner surface disposed adjacent the stator;
a second bearing at least partially directly supported by at least one of the printed circuit board and the stator, the first bearing and the second bearing cooperating to support the rotor shaft for rotation; and a fastener extending from the inner surface of the first bearing support to the inner surface of the printed circuit board such that the fastener attaches the support member, the stator, and the printed circuit board, wherein the printed circuit board comprises a bearing surface that defines an aperture sized to receive at least a portion of the second bearing, and wherein the printed circuit board comprises a wear-resistant layer disposed between the bearing surface and the second bearing.
a stator comprising a stator opening;
a rotor comprising a rotor shaft, the rotor disposed at least partially within the stator opening;
a support member comprising an inner surface and an outer surface, the stator disposed adjacent the inner surface;
a first bearing disposed at least partially within the support member;
a printed circuit board comprising an inner surface and an outer surface, the inner surface disposed adjacent the stator;
a second bearing at least partially directly supported by at least one of the printed circuit board and the stator, the first bearing and the second bearing cooperating to support the rotor shaft for rotation; and a fastener extending from the inner surface of the first bearing support to the inner surface of the printed circuit board such that the fastener attaches the support member, the stator, and the printed circuit board, wherein the printed circuit board comprises a bearing surface that defines an aperture sized to receive at least a portion of the second bearing, and wherein the printed circuit board comprises a wear-resistant layer disposed between the bearing surface and the second bearing.
16. An electric motor as set forth in claim 15 wherein the wear-resistant layer is plated to the bearing surface.
17. An electric motor as set forth in claim 10 wherein the fastener extends from the outer surface of one of the support member and the printed circuit board to the inner surface of the other of the support member and the printed circuit board.
18. An electric motor as set forth in claim 10 wherein the fastener extends from the outer surface of the support member to the outer surface of the printed circuit board.
19. An electric motor as set forth in claim 10 wherein the electric motor further comprises a plurality of fasteners that cooperate to fixedly connect the support member, the stator, and the printed circuit board.
20. (Cancelled)
21. (Cancelled)
22. (Cancelled)
23. (Cancelled)
24. (Cancelled)
25. (Cancelled)
26. (Cancelled)
27. (Cancelled)
28. An electric motor comprising:
a stator;
a rotor comprising a rotor shaft;
a support member coupled to the stator;
a first bearing at least partially disposed within the support member;
a printed circuit board coupled to the stator; and a second bearing directly supported by and in direct contact with the printed circuit board, the first bearing and the second bearing cooperating to support the rotor shaft for rotation relative to the stator.
a stator;
a rotor comprising a rotor shaft;
a support member coupled to the stator;
a first bearing at least partially disposed within the support member;
a printed circuit board coupled to the stator; and a second bearing directly supported by and in direct contact with the printed circuit board, the first bearing and the second bearing cooperating to support the rotor shaft for rotation relative to the stator.
29. An electric motor as set forth in claim 28 wherein the stator is arranged to define a C-frame motor.
30. An electric motor as set forth in claim 28 wherein the rotor comprises a rotor core and the rotor shaft comprises a first end on a first side of the core and a second end on a second side of the core, the second side opposite the first side, the first bearing coupled to the first end and the second bearing coupled to the second end.
31. An electric motor as set forth in claim 28 wherein each of the first bearing and the second bearing is one of a journal bearing and a roller bearing.
32. An electric motor as set forth in claim 28 wherein the printed circuit board comprises a bearing surface that defines an aperture sized to receive at least a portion of the second bearing.
33. An electric motor comprising:
a stator;
a rotor comprising a rotor shaft;
a support member coupled to the stator;
a first bearing at least partially disposed within the support member;
a printed circuit board coupled to the stator; and a second bearing at least partially supported by the printed circuit board, the first bearing and the second bearing cooperating to support the rotor shaft for rotation relative to the stator, wherein the printed circuit board comprises a bearing surface that defines an aperture sized to receive at least a portion of the second bearing, and wherein the printed circuit board comprises a wear-resistant layer disposed between the bearing surface and the second bearing.
a stator;
a rotor comprising a rotor shaft;
a support member coupled to the stator;
a first bearing at least partially disposed within the support member;
a printed circuit board coupled to the stator; and a second bearing at least partially supported by the printed circuit board, the first bearing and the second bearing cooperating to support the rotor shaft for rotation relative to the stator, wherein the printed circuit board comprises a bearing surface that defines an aperture sized to receive at least a portion of the second bearing, and wherein the printed circuit board comprises a wear-resistant layer disposed between the bearing surface and the second bearing.
34. An electric motor as set forth in claim 33 wherein the wear-resistant layer is plated to the bearing surface.
35. An electric motor as set forth in claim 28 wherein the electric motor further comprises a fastener connecting the support member to the stator and the printed circuit board to the stator.
36. An electric motor as set forth in claim 35 wherein the fastener passes through the support member and the printed circuit board.
37. An electric motor as set forth in claim 28 wherein the printed circuit board completely supports the second bearing.
38. An electric motor as set forth in claim 28 wherein the printed circuit board and the stator cooperate to inhibit movement of the bearing in a direction parallel to the rotor shaft and the printed circuit board substantially inhibits movement of the second bearing perpendicular to the rotor shaft.
39. An electric motor as set forth in claim 10 wherein the second bearing is in direct contact with the printed circuit board.
40. An electric motor as set forth in claim 39 wherein the printed circuit board includes a board portion and an encasement portion substantially encasing the board portion, the second bearing in direct contact with the encasement portion.
41. An electric motor as set forth in claim 28 wherein the printed circuit board includes a board portion and an encasement portion substantially encasing the board portion, the second bearing in direct contact with the encasement portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/923,229 | 2004-08-20 | ||
| US10/923,229 US7109621B2 (en) | 2004-08-20 | 2004-08-20 | Electric motor having a printed circuit board attached to a stator and at least partially supporting a bearing |
| PCT/US2005/029570 WO2006023732A1 (en) | 2004-08-20 | 2005-08-18 | Electric motor having printed circuit board attached to stator and at least partially supporting bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2575653A1 true CA2575653A1 (en) | 2006-03-02 |
| CA2575653C CA2575653C (en) | 2013-04-02 |
Family
ID=35908975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2575653A Expired - Fee Related CA2575653C (en) | 2004-08-20 | 2005-08-18 | Electric motor having printed circuit board attached to stator and at least partially supporting bearing |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7109621B2 (en) |
| EP (1) | EP1782522A4 (en) |
| CN (1) | CN101036277B (en) |
| CA (1) | CA2575653C (en) |
| MX (1) | MX2007002046A (en) |
| WO (1) | WO2006023732A1 (en) |
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| US7339298B2 (en) * | 2004-03-09 | 2008-03-04 | Superior Electric Holding Group Llc. | Compliant motor driven variable electrical device |
| US7348706B2 (en) * | 2005-10-31 | 2008-03-25 | A. O. Smith Corporation | Stator assembly for an electric machine and method of manufacturing the same |
| CN101461126B (en) * | 2006-04-13 | 2016-01-27 | 雷勃电气美国公司 | Motor, for the stator module of motor and manufacture method thereof |
| WO2008069361A2 (en) * | 2006-12-06 | 2008-06-12 | Lg Electronics Inc. | Motor |
| WO2008069360A2 (en) * | 2006-12-06 | 2008-06-12 | Lg Electronics Inc. | Motor |
| US8026644B2 (en) * | 2007-04-10 | 2011-09-27 | Violett Robert S | Electric propulsion system useful in jet-type model airplanes and UAVS |
| US20080284273A1 (en) * | 2007-05-17 | 2008-11-20 | Purvines Stephen H | Lead frame |
| US7821176B2 (en) * | 2007-06-08 | 2010-10-26 | A.O. Smith Corporation | Electric motor, stator for an electric motor and method of manufacturing same |
| US7893572B2 (en) * | 2007-08-28 | 2011-02-22 | Delphi Technologies, Inc. | Motor attachment assembly for plastic post isolation system |
| US20090140585A1 (en) * | 2007-11-30 | 2009-06-04 | Albert Keith Pant | Interface connector for a motor and a motor incorporating the interface connector |
| GB2512772B (en) * | 2009-03-03 | 2015-02-18 | Dyson Technology Ltd | Electric machine |
| GB2468310B (en) | 2009-03-03 | 2015-01-07 | Dyson Technology Ltd | Stator core |
| DE202009006227U1 (en) | 2009-04-30 | 2010-10-21 | Dr. Fritz Faulhaber Gmbh & Co. Kg | Electric actuator |
| JP5462374B2 (en) * | 2010-11-23 | 2014-04-02 | 三菱電機株式会社 | Electric power steering motor |
| EP2579432B1 (en) * | 2011-10-07 | 2014-07-16 | Grundfos Holding A/S | Choke coil |
| MX2016000920A (en) | 2013-07-26 | 2017-02-28 | Regal Beloit America Inc | Bearing stand-off devices. |
| CN106272537B (en) * | 2015-06-01 | 2018-12-28 | 三纬国际立体列印科技股份有限公司 | joint structure |
| CA3054597A1 (en) | 2017-03-08 | 2018-09-13 | Robert D. Lundahl | Package sorting transfer module and systems and methods therefor |
| US10532894B2 (en) | 2017-03-10 | 2020-01-14 | Regal Beloit America, Inc. | Modular transfer units, systems, and methods |
| WO2019104095A2 (en) | 2017-11-22 | 2019-05-31 | Regal Beloit America, Inc. | Modular sortation units, systems, and methods |
| DE102018100242A1 (en) * | 2018-01-08 | 2019-07-11 | Pierburg Pump Technology Gmbh | Car accessory electric motor |
| CN110556997A (en) * | 2019-09-20 | 2019-12-10 | 深圳市万至达电机制造有限公司 | Single-phase brushless high-speed motor |
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| JP3994673B2 (en) * | 2001-02-28 | 2007-10-24 | 松下電器産業株式会社 | Brushless motor |
| KR100429989B1 (en) * | 2001-05-26 | 2004-05-03 | 엘지전자 주식회사 | Skeleton type brushless direct current motor |
| US6982532B2 (en) * | 2003-12-08 | 2006-01-03 | A. O. Smith Corporation | Electric machine |
-
2004
- 2004-08-20 US US10/923,229 patent/US7109621B2/en not_active Expired - Fee Related
-
2005
- 2005-08-18 CA CA2575653A patent/CA2575653C/en not_active Expired - Fee Related
- 2005-08-18 WO PCT/US2005/029570 patent/WO2006023732A1/en active Application Filing
- 2005-08-18 MX MX2007002046A patent/MX2007002046A/en active IP Right Grant
- 2005-08-18 CN CN2005800276260A patent/CN101036277B/en not_active Expired - Fee Related
- 2005-08-18 EP EP05792339A patent/EP1782522A4/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN101036277B (en) | 2010-12-15 |
| US7109621B2 (en) | 2006-09-19 |
| CN101036277A (en) | 2007-09-12 |
| MX2007002046A (en) | 2007-03-29 |
| WO2006023732A1 (en) | 2006-03-02 |
| US20060038452A1 (en) | 2006-02-23 |
| EP1782522A1 (en) | 2007-05-09 |
| EP1782522A4 (en) | 2012-08-08 |
| CA2575653C (en) | 2013-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20140819 |