LINEAR MOTOR

PROBLEM TO BE SOLVED: To provide a linear motor in which the part of a fixed section facing a movable section can be prevented from deforming, the facing part can be processed accurately, and fracture of the winding of a coil due to vibration fatigue can be prevented.SOLUTION: A base 13 has a second recess 13a facing a first recess, a second protrusion 13b abutting against a first protrusion, a first coolant passage communicating with the first recess via a first notch, a second coolant passage 13d communicating with the first recess via a second notch, and a through hole 13e provided in the bottom of the second recess 13a and interconnecting the opposite ends of the winding of a coil. A third coolant passage for passing the coolant flowing from the first coolant passage toward second coolant passage 13d is formed by the first recess and second recess 13a. The through hole 13e is provided adjacently to the second protrusion 13b, on the downstream side in the flow direction of coolant in the third coolant passage.SELECTED DRAWING: Figure 7 【課題】可動部に対向する固定部の対向部の変形を防止することができ、対向部を精度よく加工することができ、コイルの巻線の振動疲労による破断を防止することができるリニアモータを提供する。【解決手段】基台部１３は、第１凹部に対向する第２凹部１３ａと、第１凸部に当接する第２凸部１３ｂと、第１切欠部を介して第１凹部に連通する第１冷媒流路と、第２切欠部を介して第１凹部に連通する第２冷媒流路１３ｄと、第２凹部１３ａの底部に設けられコイルの巻線の両端部を挿通させる貫通孔１３ｅとを有する。第１凹部と第２凹部１３ａとによって、第１冷媒流路から第２冷媒流路１３ｄへ向かう冷媒が流れる第３冷媒流路が形成される。貫通孔１３ｅは、第３冷媒流路における冷媒の流れ方向Ｆ下流側に、第２凸部１３ｂに隣接して設けられている。【選択図】図７