JPH02107275U - - Google Patents
Info
- Publication number
- JPH02107275U JPH02107275U JP1526289U JP1526289U JPH02107275U JP H02107275 U JPH02107275 U JP H02107275U JP 1526289 U JP1526289 U JP 1526289U JP 1526289 U JP1526289 U JP 1526289U JP H02107275 U JPH02107275 U JP H02107275U
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- stator
- electric motor
- ring
- ball bearing
- 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.)
- Pending
Links
- 230000005284 excitation Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims 3
- 239000000919 ceramic Substances 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 229910001220 stainless steel Inorganic materials 0.000 claims 2
- 239000010935 stainless steel Substances 0.000 claims 2
Landscapes
- Rolling Contact Bearings (AREA)
Description
第１図は本考案の第１の実施例における電動機
の断面図、第２図は第１図のＸ−Ｘ′断面図、第
３図は本考案の第２の実施例における電動機の断
面図、第４図及び第５図は従来の電動機の断面図
、第６図は従来の電動機のステータの平面図であ
る。
１……ボールベアリング、２……ボールベアリ
ング保持部、３……ステータ、４……嵌合部、５
……カバー、６……励磁巻線、７……シヤフト、
８……ロータギア、９……マグネツト、１０……
すべり軸受、１１……ポール、１２……ボールベ
アリング、１３……リング、１４……ロータ。
Fig. 1 is a sectional view of the electric motor in the first embodiment of the present invention, Fig. 2 is a sectional view taken along line XX' in Fig. 1, and Fig. 3 is a sectional view of the electric motor in the second embodiment of the invention. , FIG. 4 and FIG. 5 are cross-sectional views of a conventional electric motor, and FIG. 6 is a plan view of a stator of the conventional electric motor. DESCRIPTION OF SYMBOLS 1... Ball bearing, 2... Ball bearing holding part, 3... Stator, 4... Fitting part, 5
...Cover, 6...Excitation winding, 7...Shaft,
8...Rotor gear, 9...Magnet, 10...
Slide bearing, 11...Pole, 12...Ball bearing, 13...Ring, 14...Rotor.
Claims (1)
し、該ポールに励磁用の巻線が施されたステータ
と、このステータの内径面にロータを支持するボ
ールベアリングを嵌合した電動機であつて、前記
ボールベアリングを構成する内輪、ボール、外輪
のうち少なくとも外輪を樹脂、セラミツクス、ス
テンレス等の非磁性材で形成したことを特徴とす
る電動機。 (2) 内側中空部分に突出した複数のポールを有
し、該ポールに励磁用の巻線が施されたステータ
と、このステータの内径面にロータを支持するボ
ールベアリングを嵌合した電動機であつて、前記
ボールベアリングを構成する内輪、ボール、外輪
のうち外輪を磁性材に、この外輪の外側に樹脂、
セラミツクス、ステンレス等の非磁性材リングを
圧入した電動機。[Claims for Utility Model Registration] (1) A stator that has a plurality of poles protruding from an inner hollow portion, each of which has an excitation winding, and a ball that supports a rotor on the inner diameter surface of the stator. An electric motor fitted with a bearing, characterized in that at least the outer ring of the inner ring, balls, and outer ring constituting the ball bearing is made of a non-magnetic material such as resin, ceramics, or stainless steel. (2) An electric motor having a stator having a plurality of poles protruding from an inner hollow part, each of which has an excitation winding, and a ball bearing that supports a rotor fitted to the inner diameter surface of the stator. Among the inner ring, balls, and outer ring that constitute the ball bearing, the outer ring is made of magnetic material, and the outer ring is made of resin.
An electric motor with a press-fitted ring made of non-magnetic material such as ceramics or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1526289U JPH02107275U (en) | 1989-02-10 | 1989-02-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1526289U JPH02107275U (en) | 1989-02-10 | 1989-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02107275U true JPH02107275U (en) | 1990-08-27 |
Family
ID=31227159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1526289U Pending JPH02107275U (en) | 1989-02-10 | 1989-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02107275U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005061378A (en) * | 2003-08-20 | 2005-03-10 | Tsurumi Mfg Co Ltd | Vertical type electric pump |
| JP2005061377A (en) * | 2003-08-20 | 2005-03-10 | Tsurumi Mfg Co Ltd | Vertical type electric pump |
| JP2007082327A (en) * | 2005-09-14 | 2007-03-29 | Japan Servo Co Ltd | Small-sized inner rotor motor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6261159B2 (en) * | 1980-04-30 | 1987-12-19 | Matsushita Electric Ind Co Ltd |
-
1989
- 1989-02-10 JP JP1526289U patent/JPH02107275U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6261159B2 (en) * | 1980-04-30 | 1987-12-19 | Matsushita Electric Ind Co Ltd |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005061378A (en) * | 2003-08-20 | 2005-03-10 | Tsurumi Mfg Co Ltd | Vertical type electric pump |
| JP2005061377A (en) * | 2003-08-20 | 2005-03-10 | Tsurumi Mfg Co Ltd | Vertical type electric pump |
| JP4737927B2 (en) * | 2003-08-20 | 2011-08-03 | 株式会社鶴見製作所 | Vertical electric pump |
| JP4737926B2 (en) * | 2003-08-20 | 2011-08-03 | 株式会社鶴見製作所 | Vertical electric pump |
| JP2007082327A (en) * | 2005-09-14 | 2007-03-29 | Japan Servo Co Ltd | Small-sized inner rotor motor |