Battery pack case assembly for electric and hybrid vehicles using a plastic composite and method for manufacturing the same

摘要

Disclosed is a battery pack case assembly for an electric or hybrid vehicle and a method for manufacturing the same. The battery pack case assembly includes a case body and a cover. The case body receives a battery pack, and the cover is coupled to the case body. The case body is formed of a plastic composite in which a long fiber or a blend of a long fiber and a continuous fiber is used as a reinforcing fiber in a plastic matrix. A separate reinforced member is bonded to both side bracket parts for coupling to a vehicle body, and is formed of a plastic composite in which a long fiber, a continuous, or a blend of a long fiber and a continuous fiber is used as the reinforcing fiber in the plastic matrix.

主权项

1. A method for manufacturing a battery pack case assembly for an electric or hybrid vehicle comprising a case body for receiving a battery pack, and a cover removably coupled to the case body, the method comprising:
forming the case body using a plastic composite in which a long fiber or a blend of a long fiber and a continuous fiber is used as a reinforcing fiber in a plastic matrix; forming a first separate reinforced member using a plastic composite in which a long fiber, a continuous, or a blend of a long fiber and a continuous fiber is used as the reinforcing fiber in the plastic matrix, the first separate reinforced member including at least two brackets each bonded to a side of the case body; forming a second separate reinforced member having a planar shape being disposed at a bottom of the case body connecting the at least two brackets in the first separate reinforced member and disposed perpendicularly planar to the bottom of the case body, wherein the second separate reinforced member disposed at the bottom of the case body is formed of a plastic composite comprising a continuous fiber as a reinforcing fiber in a plastic matrix; and bonding the reinforced member to both side bracket parts of the case body for coupling to a vehicle body, wherein the case body is integrally formed with the second separate reinforced member by an extrusion-compression molding apparatus and the bottom of the case body is formed in a single layer structure.