| 摘要 |
1,064,099. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 2, 1964 [April 5, 1963], No. 13645/64. Heading H1K. Part of a terminal or an insulator carrying a terminal is clamped between a cooling body and a pressure member, the clamping means also holding the metal envelope of a semi-conductor device to the body. In the Fig. 1 arrangement the envelope 6 is bolted to finned cooling body 6 and clamps pressure member 7 over the head of terminal bolt 12 and the base of insulating terminal support 14. Rotation of the bolt and support is prevented by engagement of the bolt head with mating recess 18 and of the support with the edges 8 of the pressure member. Heat transfer to the fins is facilitated if the base of the envelope has a raised portion about the threaded stem which passes through hole 9 to directly engage the cooling body. In a further assembly, Fig. 3, the cooling body has lateral fins 32 and recesses for bolt head 35 and the enlarged base 41 of an insulating terminal post. The latter carries two terminals for the semiconductor controlled rectifier 32, Fig. 6 (not shown) and its rotation is prevented by threading its essentially semi-circular stem through a matching hole in the pressure member 34. |
