Vehicle battery pack thermal barrier

摘要

An integration assembly for a battery pack mounted between the passenger cabin floor panel of an electric vehicle and the driving surface is provided, the assembly utilizing a multi-layer thermal barrier interposed between the battery pack enclosure and the passenger cabin floor panel, where the multi-layer thermal barrier provides noise isolation, thermal isolation and vibration damping, and where the multi-layer thermal barrier is compressed when the battery pack enclosure is mounted to the vehicle. The multi-layer thermal barrier is comprised of a first layer formed from a compressible and conformable elastic material and a second layer formed from a conformable thermally insulating material. The multi-layer thermal barrier may also include a moisture barrier layer that encases the first and second layers, for example a moisture barrier layer fabricated from a plastic. A sealant may be used to seal and bond the moisture barrier layer to the battery pack enclosure.

主权项

1. A vehicle battery pack integrated assembly, comprising:
a battery pack enclosure mounted under an electric vehicle, wherein said battery pack enclosure comprises an enclosure top panel, an enclosure bottom panel, and a plurality of enclosure side members, wherein said battery pack enclosure is configured to hold a plurality of batteries, and wherein said battery pack enclosure is mounted between a passenger cabin floor panel and a driving surface; and a multi-layer thermal barrier interposed between said battery pack enclosure and said passenger cabin floor panel, wherein said multi-layer thermal barrier provides noise isolation, thermal isolation and vibration damping, wherein said multi-layer thermal barrier is compressed when said battery pack enclosure is mounted to said electric vehicle, and wherein said multi-layer thermal barrier is comprised of:
a first layer, wherein said first layer is comprised of a compressible and conformable elastic material; anda second layer, wherein said second layer is comprised of a conformable thermally insulating material.