Accelerated Fatigue Evaluation Device For Welded Portion Of Vehicle Battery Module Frame

Abstract: This accelerated fatigue evaluation device for a welded portion of a module frame in an embodiment comprises: with respect to a module frame having a U-frame of which an upper surface and opposite side surfaces are welded to a top plate and an end frame, respectively, a test module frame obtained by opening the lower surface of a non-welded ?-frame; a center jig connected to support the front surface and the rear surface of the test module frame; a guide block jig supporting downward the end frame of the test module frame; a piston which enters the test module frame and applies a repeated load to the inner surface of the top plate; at least one battery cell interposed between the piston and the inner surface of the top plate; and a displacement sensor which measures the deformation at the center of the outer surface of the top plate.

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