BATTERY COOLING DEVICE

• Main Author: SATO MASATAKA
• Format: Patent
• Language: English; Japanese
• Published: 19.12.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a cooling circuit in which a cooling liquid for cooling a battery passes through a filter, the cooling circuit offering a secured effect of cooling the battery.SOLUTION: A battery cooling device is for directly cooling a battery by an insulative cooling oil circulating in a cooling circuit. The cooling circuit includes: a filter for removing an impurity mixed in the cooling oil; a bypass passage for bypassing the filter; a switch valve for switching between a filter-side passage with the filter and a bypass passage; and a controller for controlling the switch valve. The controller controls the switch valve so that the cooling oil flows in the bypass passage when there is a request to cool the battery and the pressure loss of the cooling oil flowing in the cooling circuit is determined to be large.SELECTED DRAWING: Figure 2 【課題】電池を冷却するための冷却液がフィルタを通過する冷却回路において電池の冷却効果を確保すること。【解決手段】冷却回路を循環する絶縁性の冷却油によって電池を直接的に冷却する電池冷却装置であって、冷却回路は、冷却油に混入した不純物を除去するフィルタと、フィルタをバイパスするバイパス通路と、フィルタが設けられたフィルタ側通路とバイパス通路とを切り替える切替弁と、を有し、切替弁を制御する制御装置と、を備え、制御装置は、電池の冷却要求がある時に、冷却回路を流れる冷却油の圧力損失が大きいと判定した場合、冷却油がバイパス通路を流れるように切替弁を制御する。【選択図】図２