Vehicle battery pack thermal barrier

• Main Authors: HERRON NICHOLAS HAYDEN, RAWLINSON PETER DORE, EDWARDS BRUCE PHILLIP, GOETCHIUS GREGORY MICHAEL
• Format: Patent
• Language: English
• Published: 04.11.2014
• Subjects: ARMOUR; ARMOURED OR ARMED VEHICLES; ARMOURED TURRETS; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL; MECHANICAL ENGINEERING; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR; WEAPONS

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.