Semiconductor converter
Patent 4901138 Issued on February 13, 1990. Estimated Expiration Date: 
December 2, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 2, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.InventorsApplicationNo. 127393 filed on 12/02/1987US Classes:257/721, With gas coolant165/80.3, Air cooled, including fins257/E23.099, By flowing gases, e.g., air (EPO)361/807Component mounting or support meansExaminersPrimary: Hille, RolfAssistant: Clark, S. V. Attorney, Agent or FirmForeign Patent References
International ClassesH01L 023/34H01L 023/46 Foreign Application Priority Data1986-12-04 JPAbstractA semiconductor converter is provided with a cooling structure for cooling semiconductor units, resistors, and the like elements disposed in the housing of the semiconductor converter. A cooling air introduced into the housing through a cooling air intake port first cools the semiconductor units and the diverged cooling air flows after cooling the semiconductor units are converged at the location of a duct or passage formed between the semiconductor units and the resistors. The converged cooling air flow is directed towards the resistors to cool the same from the lower ones to the upper ones or vice versa in turn. An electric fan is installed in the air intake port or cooling air exhaust port for effectively circulate or flow the cooling air in the semiconductor converter. | |
