ROTARY ELECTRIC MACHINE AND MANUFACTURING METHOD THEREOF

To provide a rotary electric machine capable of suppressing large-sizing while improving reliability of a seal member.SOLUTION: A rotary electric machine comprises an inverter unit 30. The inverter unit 30 includes a cooler 35, and the cooler 35 includes a heat transfer member 50. A passage groove part 56 and a first projection 59 are formed on a first face 50a of the heat transfer member 50. The cooler 35 further includes a lid member 51 and a seal member 52, and a second projection 60 is formed on an opposed face 51a of the lid member 51. A gap between a distal end face 59c and the lid member 51 and a gap between a side face 59b and a side face 60a are filled with the seal member 52, and a fillet 61 is formed at a side edge 52a of the seal member 52. At a position farther from the passage groove part 56 than any one of the first projection 59 and the second projection 60 in a view in an axial direction, an interval between the opposed face 51a and the first face 50a is wider than an interval between the opposed face 51a and the distal end face 59c.SELECTED DRAWING: Figure 4 【課題】シール部材の信頼性を高めつつ大型化を抑制できる回転電機を提供する。【解決手段】回転電機は、インバータ部３０を備え、インバータ部３０は、冷却器３５を有しており、冷却器３５は、伝熱部材５０を有しており、伝熱部材５０の第１面５０ａには、流路溝部５６と、第１凸部５９と、が形成されており、冷却器３５は、蓋部材５１と、シール部材５２と、をさらに有しており、蓋部材５１の対向面５１ａには、第２凸部６０が形成されており、シール部材５２は、先端面５９ｃと蓋部材５１との間の隙間と、側面５９ｂと側面６０ａとの間の隙間と、に充填されており、シール部材５２の側縁部５２ａには、フィレット６１が形成されており、軸方向に見たとき第１凸部５９及び第２凸部６０のいずれよりも流路溝部５６から離れた位置において、対向面５１ａと第１面５０ａとの間隔は、対向面５１ａと先端面５９ｃとの間隔よりも広くなっている。【選択図】図４