BATTERY PACK OF ELECTRIC VEHICLE

• Main Authors: AZUMA YOHEI, HIDAKA SHOSHI, SHIMAZAKI SHIGE
• Format: Patent
• Language: English; Japanese
• Published: 05.03.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TRANSPORTING; VEHICLES IN GENERAL

To easily configure a battery case having a water detection and water discharge function without increasing the number of parts.SOLUTION: A battery case 18 of an electric vehicle includes a drain hole 31i that discharges water inside to the outside, and a water detecting means 37 disposed near the drain hole 31i, and at least a part of the upper surface of the case bottom wall 31a of the battery case 18 is inclined downward toward the drain hole 31i, and therefore, the downward slope of the upper surface of the case bottom wall 31a of the battery case 18 can be easily formed at the time of die casting without increasing the number of parts, and the water that has entered the inside of the battery case 18 is smoothly guided toward the drain hole 31i, and can be reliably detected by the water detecting means 37 and can be quickly discharged from the drain hole 31i.SELECTED DRAWING: Figure 7 【課題】 水検知および水排出機能を有するバッテリケースを、部品点数を増加させずに簡単に構成可能にする。【解決手段】 電動車両のバッテリケース１８は、内部の水を外部に排出するドレン孔３１ｉと、ドレン孔３１ｉの近傍に配置された水検知手段３７とを備え、バッテリケース１８のケース底壁３１ａ上面の少なくとも一部はドレン孔３１ｉに向かって下り傾斜しているので、バッテリケース１８のケース底壁３１ａ上面の下り傾斜を部品点数を増加させることなくダイキャスト時に容易に成形できるだけでなく、バッテリケース１８の内部に浸入した水をドレン孔３１ｉに向かってスムーズに案内し、水検知手段３７で確実に検知するとともにドレン孔３１ｉから速やかに排出することができる。【選択図】 図７