| 摘要 |
A vehicular electrical equipment unit heating and cooling system includes a vehicular electrical equipment unit 10 including a battery 21 and an inverter YBU 5 22 which are accommodated in a primary air passageway 14 , an air inlet 44 through which air in a passenger compartment 6 is admitted to the primary air passageway 14 , an air outlet 46 through which air flowing in the primary air passageway 14 is discharged to the outside of the electrical equipment unit 10 , a subsidiary air passageway 30 connected to and cut off from the primary air passageway 14 to make a closed circuit 60 when connected to the primary air passageway 14 , and a fan 40 for generating a flow of air in the primary air passageway 14.
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