WATER-COOLED MOTOR AND FUEL CELL SYSTEM HAVING THE SAME

• Main Author: KAWAMOTO YUTA
• Format: Patent
• Language: English; Japanese
• Published: 10.08.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a water-cooled motor having a cylindrical cooling water passage through which cooling water uniformly flows and which can efficiently perform cooling and can be easily assembled.SOLUTION: A water-cooled motor includes: a motor body (30); a lid member (40) attached to one end side of the motor body (30); and a water jacket (50) that covers an outer peripheral surface (36) of the motor body (30) and having a cooling water inflow section (56) and a cooling water outflow section (55), provided to a water jacket body (51) and an outer peripheral surface of the water jacket body (51), respectively. The water jacket body (51) has a cylindrical body (53) provided with an inner peripheral surface (53a) that forms a cylindrical cooling water passage (L) between the water jacket and the outer peripheral surface (36) of the motor body (30), and a diameter reduction unit (54) adjacent to the cylindrical body (53). At least parts of each of the cooling water inflow section (56) and the cooling water outflow section (55) are overlapped with the cylindrical cooling water passage (L) and arranged in a rotation shaft direction X-X of the motor body (30).SELECTED DRAWING: Figure 6 【課題】冷却水が均一に流れて効率よく冷却できる筒状冷却水路を備え、容易に組み立てできる水冷モータを提供すること。【解決手段】水冷モータであって、モータ本体（３０）と、モータ本体（３０）の一端側に取り付けられる蓋部材（４０）と、モータ本体（３０）の外周面（３６）を覆っており、ウォータージャケット本体（５１）と、ウォータージャケット本体（５１）の外周面にそれぞれ設けられている冷却水流入部（５６）と、冷却水流出部（５５）とを有するウォータージャケット（５０）と、を備え、ウォータージャケット本体（５１）は、モータ本体（３０）の外周面（３６）との間に筒状冷却水路（Ｌ）を形成している内周面（５３ａ）が設けられている筒状本体部（５３）と、筒状本体部（５３）に隣接する縮径部（５４）と、を有し、冷却水流入部（５６）と、冷却水流出部（５５）とは、モータ本体（３０）の回転軸方向Ｘ−Ｘにおいて、それぞれ少なくとも一部が筒状冷却水路（Ｌ）と重なって配置されている水冷モータ。【選択図】図６