Patent attributes
A composite material structure that prevents occurrence of galvanic corrosion while exposing a part of a conductor embedded in a conductive resin portion as a connecting portion, is provided. The composite material structure includes a conductive resin portion formed of an electrically conductive reinforced resin in which conductive fibers are contained in a base material, a conductor formed of a conductive material and embedded in the conductive resin portion with a part of the conductor exposed as a connecting portion for electrical connection with another component, and an insulator that is formed of an insulating material and that is at least partially embedded in the conductive resin portion so as to be interposed between the conductive reinforced resin and the conductor so as to prevent the connecting portion of the conductor from contacting the conductive reinforced resin.