To propose an electric motor with an improved cooling performance, the motor generating less noise for a predetermined output.SOLUTION: An electric motor (12) for a vehicle, especially for a railroad vehicle (10) includes: a stator (16) for a longer-direction axis (X-X'); and a cooling device (14) for the motor (12) including a body (20), the body (20) including a plurality of air passages (30) arranged along the longer-direction axis (X-X') in practically parallel to each other. Each air passage defines two air passage opening units (36) including an air drawing opening unit and an air discharge opening unit. The cooling device (14) includes one or two adjustment rings (22) of an air flow, and each adjustment ring (22) is set to face one pair of air drawing opening unit or air discharge opening unit. Each adjustment ring (22) defines a cross section of the passage for the air flow, and the cross section of the passage increases from the connection end toward the free end along the longer-direction axis (X-X').SELECTED DRAWING: Figure 1
【課題】冷却性能が改善され、所与の出力に対して騒音の発生が少ない、電動モータを提案すること。【解決手段】車両用、特に鉄道車両(10)用のこの電動モータ(12)は、長手方向軸(X-X´)のステータ(16)と、本体(20)を含むモータ(12)の冷却装置(14)と、を含み、本体(20)が長手方向軸(X-X´)にほぼ平行に配向される複数の空気通路(30)を含む。各空気通路は、空気取入開口部および空気排出開口部を含む2つの空気通路開口部(36)を画定する。前記冷却装置(14)は、空気流の1つまたは2つの調整リング(22)を含み、各調整リング(22)は、1組の空気取入または排出開口部に相対して設置される。各調整リング(22)は、空気流の通路断面を画定し、通路断面は、長手方向軸(X-X´)に沿って連結端から自由端に向かって増大する。【選択図】図1
ELECTRIC MOTOR FOR VEHICLE AND VEHICLE FOR RAILROAD RELATED THERETO
車両用電動モータおよび関連する特に鉄道用の車両
2022-01-20
Patent
Electronic Resource
Japanese
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