US 8,875,828 B2Granted

Vehicle battery pack thermal barrier

AssigneeTesla Motors, Inc.

InventorsPeter Dore Rawlinson, Nicholas Hayden Herron, Bruce Phillip Edwards, Gregory Michael Goetchius

Life of this patent

Estimating the term…

Loading patent…

Abstract

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.

Claims20

Dependent claims

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;
and
a second layer, wherein said second layer is comprised of a conformable thermally insulating material.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/771,471Filed 20 Feb 2013 · continuation in part
Priority: 22 Dec 2010
Published: US 2013/0153317 A120 Jun 2013
Granted: 4 Nov 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

B60K 1/04
Arrangement or mounting of electrical propulsion units: of the electric storage means for propulsion
B62D 25/025
Side panels: side sills thereof
B62D 25/2036
In connection with other superstructure subunits: the subunits being side panels, sills or pillars
B62D 29/008
Superstructures, understructures, or sub-units thereof, characterised by the material thereof: predominantly of light alloys, e.g. extruded

Family

Application61/426,254Us provisional application · filed 22 Dec 2010
Application13/311,343Parent of this continuation-in-part · filed 5 Dec 2011
US 2013/0153317 A1Pre-grant publication · published 20 Jun 2013
US 2012/0160583 A1Published application
US 8,833,499 B2Related patent
US 8,875,828 B2This patent

From the US filing history. Foreign family members aren’t listed.