ROTOR
To provide a technique capable of sealing a magnet with resin while stably supporting the magnet.SOLUTION: A rotor includes a core disposed around a rotating shaft, a plurality of plate-shaped magnets which are arranged around the core and extend in an axial direction of the rotating shaft, a fixing...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a technique capable of sealing a magnet with resin while stably supporting the magnet.SOLUTION: A rotor includes a core disposed around a rotating shaft, a plurality of plate-shaped magnets which are arranged around the core and extend in an axial direction of the rotating shaft, a fixing portion for fixing the plurality of magnets to the core, and a sealing member which is made of resin and seals the core, the plurality of magnets, and the fixing portion. The sealing member includes an inlet mark for resin injection at a position above upper surface portions of the magnets in the axial direction. A lower end portion of the core in the axial direction includes a first protrusion protruding outward in the radial direction of the core. The lower surface portion of the magnet in the axial direction is in contact with the upper surface portion of the first protrusion, and is supported by the first protrusion.SELECTED DRAWING: Figure 1
【課題】磁石を安定的に支持した状態で樹脂封止することができる技術を提供する。【解決手段】ロータは、ロータは、回転軸の周りに配置されるコアと、前記コアの周りに配置され、前記回転軸の軸方向に延在する複数の板状の磁石と、複数の前記磁石を前記コアに固定する固定部と、前記コアと複数の前記磁石と前記固定部を封止する樹脂からなる封止部材と、を備えている。前記封止部材は、前記軸方向における前記磁石の上面部よりも上側の位置に樹脂注入の入口痕を備えている。前記軸方向における前記コアの下端部は、前記コアの径方向の外側に突出する第1突出部を備えている。前記軸方向における前記磁石の下面部は、前記第1突出部の上面部に当接しており、前記第1突出部により支持されている。【選択図】図1 |
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