BATTERY PACK

• Main Authors: YAMASHITA KOJI, INOUE HISATO
• Format: Patent
• Language: English; Japanese
• Published: 15.03.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a battery pack capable of improving battery cooling performance.SOLUTION: A heat exchange unit 6 forms sections such that a pair of heat exchange passages, which form part of a circulation passage 8 and in which a circulating fluid passes around a refrigerant passage when heat exchange with a refrigerant takes place, are adjacent. A first blower 4A is provided further on one side from a heat exchanger 60 with respect to a direction in which the pair of adjacent heat exchange passages extend. A second blower 4B is provided on the other side of the heat exchanger 60, which is opposite to the first blower 4A. The second blower 4B is provided in a housing 2, and provides a second heat exchange passage 5B21 of the pair of heat exchange passages with driving force for causing a circulating fluid to flow in a direction opposite to a circulating fluid flowing in a first heat exchange passage 5A21. The first blower 4A and the second blower 4B are provided at diagonal positions with the heat exchanger 60 between them, in a plan view of the interior of the housing 2.SELECTED DRAWING: Figure 2 【課題】電池冷却性能の向上が図れる電池パックを提供する。【解決手段】熱交換ユニット６は、それぞれ、循環通路８の一部をなす通路であり、冷媒と熱交換する際に循環流体が冷媒通路の周囲を通過する一対の熱交換通路を隣接させて区画形成する。第１送風機４Ａは、隣接する一対の熱交換通路が延びる方向に関して熱交換器６０よりも一方側に設けられている。第２送風機４Ｂは、熱交換器６０に対して第１送風機４Ａとは反対側である他方側に設けられている。第２送風機４Ｂは、筐体２の内部に設けられて、一対の熱交換通路のうち第２の熱交換通路５Ｂ２１に、第１の熱交換通路５Ａ２１を流通する循環流体と対向流をなす向きに循環流体を流通させる駆動力を提供する。第１送風機４Ａと第２送風機４Ｂは、筐体２の内部の平面視において、熱交換器６０を間において対角となる位置に設けられている。【選択図】図２