| 摘要 |
PROBLEM TO BE SOLVED: To prevent the lowering of durability of a large current fuse for automobile even in the case of arranged under the high-temperature environment by relieving the regulation of a current to be fed to a fuse. SOLUTION: This large current fuse 1A has a fusible fuse 2 and it is formed by inserting a conductor plate 10 having terminal connection parts 15, 16 in both ends thereof into a resin case 20, and a heat radiating part 28 for radiating the heat generated in the fusible fuse and the conductor plate at the time of feeding current to the outside air is provided in an outer surface of the resin case. The heat radiating part is formed of plural thin plates 29 arranged in the resin case with an equal space. In order to improve the strength of the resin case, the thin plates are arranged in parallel with the current carrying direction (a direction J). In order to separate the fusible fuse from both ends of the conductor plate, a pair of auxiliary plates opposite to each other are integrally formed with the conductor plate at an intermediate part thereof, and the fusible fuse is stretched between this pair of auxiliary plates. The fusible fuse is stretched between the pair of auxiliary plates in a direction crossing a direction for feeding current to the conductor plate.
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