Processing

Please wait...

Settings

Settings

Goto Application

1. WO2021029309 - ROTATING DEVICE

Publication Number WO/2021/029309
Publication Date 18.02.2021
International Application No. PCT/JP2020/030114
International Filing Date 06.08.2020
IPC
H02K 21/22 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
21Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
12with stationary armatures and rotating magnets
22with magnets rotating around the armatures, e.g. flywheel magnetos
F16C 19/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
19Bearings with rolling contact, for exclusively rotary movement
02with bearing balls essentially of the same size in one or more circular rows
04for radial load mainly
06with a single row of balls
F16C 19/54 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
19Bearings with rolling contact, for exclusively rotary movement
54Systems consisting of a plurality of bearings with rolling friction
F16C 25/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
25Bearings for exclusively rotary movement adjustable for wear or play
06Ball or roller bearings
08self-adjusting
F16C 35/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
35Rigid support of bearing units; Housings, e.g. caps, covers
08for spindles
12with ball or roller bearings
Applicants
  • ミネベアミツミ株式会社 MINEBEA MITSUMI INC. [JP]/[JP]
Inventors
  • 岩田 仁 IWATA Hitoshi
  • 加納 剛 KANO Tsuyoshi
  • 大沢 直生 OHSAWA Naoki
  • 山西 生馬 YAMANISHI Shoma
  • 西方 俊之 NISHIKATA Toshiyuki
  • 三田村 聖司 MITAMURA Seiji
  • 清水 道弘 SHIMIZU Michihiro
  • 天城 雄太 AMAGI Yuta
Agents
  • アインゼル・フェリックス=ラインハルト EINSEL Felix-Reinhard
  • 前川 純一 MAEKAWA Junichi
  • 二宮 浩康 NINOMIYA Hiroyasu
  • 上島 類 UESHIMA Rui
Priority Data
2019-14792809.08.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ROTATING DEVICE
(FR) DISPOSITIF DE ROTATION
(JA) 回転機器
Abstract
(EN)
The size of a rotating device is reduced. A magnet (31) is made of resin. In a cylindrical rotating body (32) that can rotate with respect to a shaft member (5), the radial direction is shorter than the axial direction. The inner circumferential surface of a first bearing (41) and a second bearing (42) is fixed to the outer circumferential surface of the shaft member (5). The shaft member (5) and the rotating body (32) are each formed as a single member. In the axial direction, the outer diameter of the shaft member (5) from the part facing the first bearing (41) to the part facing the second bearing (42), and the inner diameter and the outer diameter of the rotating body (32) from the first-bearing (41)-side end part to the second-bearing (42)-side are each substantially the same. In the axial direction, one of the stators (2) is placed at a center part (C1) of the shaft member (5), one of the magnets (31) is placed at a center part (C2) of the rotating body (32), and the first bearing (41) and the second bearing (42) are placed at both end part sides of the rotating body (32).
(FR)
La présente invention permet de réduire la taille d'un dispositif de rotation. Un aimant (31) est composé de résine. Dans un corps rotatif cylindrique (32) qui peut tourner par rapport à un élément d'arbre (5), la direction radiale est plus courte que la direction axiale. La surface circonférentielle interne d'un premier palier (41) et d'un second palier (42) est fixée à la surface circonférentielle externe de l'élément d'arbre (5). L'élément d'arbre (5) et le corps rotatif (32) sont chacun formés en tant qu'élément unique. Dans la direction axiale, le diamètre externe de l'élément d'arbre (5) à partir de la partie faisant face au premier palier (41) vers la partie faisant face au second palier (42), et le diamètre interne et le diamètre externe du corps rotatif (32) à partir de la partie d'extrémité côté premier palier vers le côté second palier (42) sont chacun sensiblement identiques. Dans la direction axiale, l'un des stators (2) est placé au niveau d'une partie centrale (C1) de l'élément d'arbre (5), l'un des aimants (31) est placé au niveau d'une partie centrale (C2) du corps rotatif (32), et le premier palier (41) et le second palier (42) sont placés aux deux côtés de partie d'extrémité du corps rotatif (32).
(JA)
回転機器の小型化を図る。 マグネット(31)は樹脂製である。軸部材(5)に対して回転可能な筒状の回転体(32)は、径方向が軸方向より短い。第1軸受(41)及び第2軸受(42)の内周面は軸部材(5)の外周面に固定されている。軸部材(5)及び回転体(32)は、それぞれ単一の部材で形成されている。軸方向において、軸部材(5)の外径は、第1軸受(41)に対向する部分から第2軸受(42)に対向する部分にかけて、回転体(32)の内径及び外径は、第1軸受(41)側の端部から第2軸受(42)側の端部にかけて、それぞれ実質的に同じである。軸方向において、ステータ(2)の1つは、軸部材(5)の中央部(C1)に配置され、マグネット(31)の1つは、回転体(32)の中央部(C2)に配置され、回転体(32)の両端部側に、第1軸受(41)及び第2軸受(42)が配置されている。
Latest bibliographic data on file with the International Bureau