ROTARY ELECTRIC MACHINE

• Main Authors: MATSUZAKI SHINJI, FURUSE HISAYUKI, ASOGAWA KATSUNORI, YATABE KAZUO, YAMAUCHI YASUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 25.05.2017
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BEARINGS; BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a rotary electric machine, capable of controlling an interference sound when an axial direction of a rotor is moved by the change of an operation direction of a thrust force occurring in a helical gear.SOLUTION: An rotary electric machine comprises: a rotor 22 which is oppositely disposed between stators 21 fixed to a motor case 10 through a gap G, and includes a rotor shaft 22a and a permanent magnet; a first rotor bearing 23A that is disposed between the motor case 10 and the rotor shaft 22a, and rotatably supports the rotor shaft 22a; a sun gear 31 that is provided to the rotor shaft 22a, and is rotated integrally with the rotor 22; and a stopper structure S that is provided to the motor case 10, and regulates an axial direction movement of the first rotor bearing 23A. The rotor 22 is provided on an off-set position OS1 in a state where an axial direction center position Cis shifted to the axial direction from a magnetic neutral position with respect to the stator 21 (an axial direction center position Cof the stator 21).SELECTED DRAWING: Figure 3 【課題】はすば歯車に発生するスラスト力の作用方向の変化によってロータの軸方向移動時の干渉音を制御することができる回転電機を提供すること。【解決手段】モータケース１０に固定されたステータ２１との間にギャップＧを介して対向配置されると共に、ロータシャフト２２ａ及び永久磁石を有するロータ２２と、モータケース１０とロータシャフト２２ａとの間に配置され、ロータシャフト２２ａを回転自在に支持する第１ロータ軸受２３Ａと、ロータシャフト２２ａに設けられてロータ２２と一体に回転するサンギヤ３１と、モータケース１０に設けられて第１ロータ軸受２３Ａの軸方向移動を規制するストッパー構造Ｓと、を備え、ロータ２２は、ステータ２１に対する磁気的中立位置（ステータ２１の軸方向中心位置ＣＳ）から軸方向中心位置ＣＲが軸方向にずれた状態のオフセット位置ＯＳ１に設けられている構成とした。【選択図】図３