BATTERY UNIT

To provide a battery unit which can properly control the temperature of a battery and is excellent in layout property.SOLUTION: A battery unit 1 mounted on a vehicle V comprises a battery 2 and a case 3 for housing the battery 2. The battery unit further comprises: an upper-face covering material 61 which covers an upper face of the battery 2 inside the case 3; an air suction part 61a, provided on the upper-face covering material 61, which sucks air from the outside of the case 3 to a space above of the battery 2; a lower-face covering material 62 which covers a lower face of the battery 2 inside the case 3; an air discharge part 62a, provided on the lower-face covering material 62, which discharges the air that has cooled or heated the battery 2; and a fan 63, disposed under the lower-face covering material 62, which sucks the air discharged from the air discharge part 62a so as to discharge it to a space between the lower-face covering material 62 and a bottom part 31a of the case 3.SELECTED DRAWING: Figure 5 【課題】バッテリの温度管理を適切に行うことができ、レイアウト性に優れるバッテリユニットを提供する。【解決手段】バッテリ２と、バッテリ２を収容するケース３と、を備え、車両Ｖに搭載されるバッテリユニット１であって、ケース３内でバッテリ２の上面を被覆する上面被覆材６１と、上面被覆材６１に設けられ、バッテリ２の上方にケース３の外部から空気を取り入れる吸気部６１ａと、ケース３内でバッテリ２の下面を被覆する下面被覆材６２と、下面被覆材６２に設けられ、バッテリ２を冷却又は加温した空気を排気する排気部６２ａと、下面被覆材６２の下方に配置され、排気部６２ａから排気される空気を取り込み、下面被覆材６２とケース３の底部３１ａとの間に排出するファン６３と、をさらに備える。【選択図】図５