| 摘要 |
A rectifier of an alternator includes positive and negative rectifier elements. Each rectifier element has a lead wire connected thereto, and a vicinity of a portion connecting the lead wire to the element is sealed with a material such as resin or rubber, forming a sealing portion. To protect the sealing portion against harmful components contained in cooling air blown to the rectifier, a conically shaped terminal connected to the lead wire is disposed to face and cover the sealing portion. The terminal has a sufficiently large surface area for dissipating heat generated in a process of connecting the lead wire to the terminal by welding.
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