STATOR CORE FOR ROTARY ELECTRIC MACHINE

• Main Authors: TOYODA HIROYA, NASU KEIKO, KASAMAI SATOSHI
• Format: Patent
• Language: English; Japanese
• Published: 11.04.2016
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

PROBLEM TO BE SOLVED: To prevent a core steel plate, especially, the inner edge thereof from being vibrated in a stator core for a rotary electric machine that is formed by laminating the core steel plate.SOLUTION: An annular core steel plate 10 is bound by a bolt 24 penetrating a through-hole 18 that is provided in an outer peripheral portion, and a nut 26 that is coupled to a screw part of the bolt 24 by threading. Before lamination, an inner edge 22 of the core steel plate 10 is positioned while being displaced relatively to a specific plane of an outer edge 20. The core steel plate 10 is disposed and laminated in such a manner that the displacement of the inner edge 22 is turned to the center in a direction of an axial line D of the stator core. By fastening the bolt 24, a force adhering the inner edge 22 acts and the inner edge is prevented from being vibrated.SELECTED DRAWING: Figure 3 【課題】コア鋼板を積層して形成される回転電機のステータコアにおいて、コア鋼板、特にその内周縁の振動を防止する。【解決手段】円環形状のコア鋼板１０は、外周部分に設けられた貫通孔１８を貫通するボルト２４とボルト２４のねじ部にねじ結合するナット２６により結束される。コア鋼板１０は、積層される前、その内周縁２２が、外周縁２０の規定する平面に対してずれて位置している。コア鋼板１０は、内周縁２２のずれが、ステータコアの軸線Ｄの方向において中央に向くように配置されて積層される。ボルト２４を締め付けることで、内周縁２２が密着する力が働き、内周縁の振動が抑制される。【選択図】図３