Water-tight battery system

摘要

An output terminal 7 has a circular cylindrical section 70A and a non-circular cylindrical section 70B, the front end is exposed outside the surface of the external case 2, and the aft end is attached to an output terminal lead-plate 8 inside the external case 2. The external case 2 has circular cylindrical through-holes 26A to pass the circular cylindrical sections 70A, and non-circular cylindrical through-holes 26B to insert the non-circular cylindrical sections 70B in a manner that does not rotate. Each metal rod 70 has an O-ring 72 disposed in a gasket groove 71, the O-ring 72 seals the gap between the output terminal 7 circular cylindrical section 70A and the circular cylindrical through-hole 26A in a water-tight configuration. The non-circular cylindrical section 70B inserts into the non-circular cylindrical through-hole 26B to attach the output terminal 7 to the external case 2 in a manner that does not rotate.