Terminal waterproofing structure of wire harness

A terminal waterproofing structure for a wire harness to be routed in an electric car or a hybrid car, the wire harness being constituted by a plurality of high-voltage electrical power lines, the terminal waterproofing structure comprising:

• a front end side of a tubular braided shielding member covering the wire harness overlaid on a tubular part of a shield shell and fixed by crimping with a first crimp ring, the shield shell having a flange part protruding from the front end side of the tubular part,
• a tubular grommet made from an elastic member externally fitted to the tubular part of the shield shell that projects beyond a front end of the tubular braided shielding member while covering the portion of the tubular braided shielding member fixed by crimping,
• a front end of the grommet abutting on the flange part of the shield shell, and the outer periphery of the grommet on the front end side fixed by crimping with a second crimp ring,
• between the fixation position with the second crimp ring and the fixation position with the first crimp ring, an annular sealing rib (i) protruding from the inner periphery of the grommet and a recess into which the annular sealing rib is press-fit and (ii) provided on the outer periphery of the tubular part of the shield shell, and
• wherein the second crimp ring, the annular sealing rib, and the first crimp ring constitute a three-tiered waterproofing section.