JPS63176364U - - Google Patents
Info
- Publication number
- JPS63176364U JPS63176364U JP6600087U JP6600087U JPS63176364U JP S63176364 U JPS63176364 U JP S63176364U JP 6600087 U JP6600087 U JP 6600087U JP 6600087 U JP6600087 U JP 6600087U JP S63176364 U JPS63176364 U JP S63176364U
- Authority
- JP
- Japan
- Prior art keywords
- brushless motor
- stator base
- rotor magnet
- motor according
- magnetic
- 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
- 230000004907 flux Effects 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Brushless Motors (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
第１図は本考案によるブラシレスモータの第一
実施例を示す断面図、第２図は第１図のブラシレ
スモータに備えられているステータベースの平面
図、第３図から第５図は他の実施例を示すもので
ありブラシレスモータの磁性変化部の断面図、第
６図はシヤフトの一方的な倒れを誇張して示した
動作説明図、第７図は従来のブラシレスモータの
断面図である。
１１……シヤフト、１２……スラスト軸受、１
３……ラジアル軸受、１４……ロータヨーク、１
５……ロータマグネツト、１６……ステータベー
ス、１７……ステータコイル、１８……磁性変化
部を構成する磁性片、２８，３８……磁性変化部
を構成する突部、４８……磁性変化部を構成する
穴。
Fig. 1 is a sectional view showing a first embodiment of the brushless motor according to the present invention, Fig. 2 is a plan view of a stator base provided in the brushless motor of Fig. 1, and Figs. This shows an embodiment, and is a cross-sectional view of a magnetically variable part of a brushless motor. Fig. 6 is an explanatory diagram of the operation showing an exaggerated unilateral inclination of the shaft. Fig. 7 is a cross-sectional view of a conventional brushless motor. . 11...Shaft, 12...Thrust bearing, 1
3...Radial bearing, 14...Rotor yoke, 1
5...Rotor magnet, 16...Stator base, 17...Stator coil, 18...Magnetic piece constituting the magnetic change part, 28, 38...Protrusion forming the magnetic change part, 48...Magnetic change The holes that make up the part.
Claims (1)
れ、このシヤフトにロータマグネツトが固設され
ており且つ、磁性材により製作されているステー
タベース上に、ステータコイルがロータマグネツ
トに対向して設けられているブラシレスモータに
おいて、前記ステータベース上に、ロータマグネ
ツトから延びる磁束の通過密度が他の部分と異な
る磁性変化部が部分的に設けられていることを特
徴とするブラシレスモータ。 (2) 磁性変化部は、ステータベース上に設置さ
れている磁性片によつて形成されている実用新案
登録請求の範囲第１項記載のブラシレスモータ。 (3) 磁性変化部は、ステータベースからロータ
マグネツトの方向へ延びる突起によつて形成され
ている実用新案登録請求の範囲第１項記載のブラ
シレスモータ。 (4) 磁性変化部は、ステータベースに穿設され
た穴によつて形成されている実用新案登録請求の
範囲第１項記載のブラシレスモータ。[Claims for Utility Model Registration] (1) A shaft is rotatably supported by a bearing, a rotor magnet is fixed to this shaft, and a stator is mounted on a stator base made of a magnetic material. In a brushless motor in which a coil is provided opposite to a rotor magnet, a magnetically variable portion is partially provided on the stator base in which the passing density of magnetic flux extending from the rotor magnet is different from that in other portions. A brushless motor featuring (2) The brushless motor according to claim 1, wherein the magnetic change portion is formed by a magnetic piece installed on the stator base. (3) The brushless motor according to claim 1, wherein the magnetically variable portion is formed by a projection extending from the stator base toward the rotor magnet. (4) The brushless motor according to claim 1, wherein the magnetically variable portion is formed by a hole drilled in the stator base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6600087U JPS63176364U (en) | 1987-04-30 | 1987-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6600087U JPS63176364U (en) | 1987-04-30 | 1987-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63176364U true JPS63176364U (en) | 1988-11-15 |
Family
ID=30903595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6600087U Pending JPS63176364U (en) | 1987-04-30 | 1987-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63176364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04161046A (en) * | 1990-10-23 | 1992-06-04 | C I Kasei Co Ltd | Flat vibration motor, and card type pager using that flat vibration motor, and watch type information transmitter |
-
1987
- 1987-04-30 JP JP6600087U patent/JPS63176364U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04161046A (en) * | 1990-10-23 | 1992-06-04 | C I Kasei Co Ltd | Flat vibration motor, and card type pager using that flat vibration motor, and watch type information transmitter |
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