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Invention Grant
US08403499B2 Light source lamp cooling apparatus and projection display apparatus including detecting gas pressure to control light source 有权
光源灯冷却装置和投影显示装置，包括检测气体压力以控制光源

Light source lamp cooling apparatus and projection display apparatus including detecting gas pressure to control light source
Abstract:
A light source lamp cooling apparatus according to the present invention includes: diaphragm air compressor (31); an ejector which ejects cooling air directly onto a portion to be cooled of a light source lamp in lamp unit (10); pressure detector (43) which detects pressure of the cooling air by means of pressure sensor (42) inserted in piping; air piping which connects air compressor (31) and the ejector; and a lamp controller which controls turning off of the light source lamp according to the air pressure detected by pressure detector (43). Air compressor (31) is driven at a high control frequency and a hollow, flexible silicon tube is used as air piping to reduce pulsation of air.
Abstract(Chinese):

根据本发明的光源灯冷却装置包括：隔膜空气压缩机（31）; 喷射器，其将冷却空气直接喷射到灯单元（10）中的光源灯的待冷却部分上; 压力检测器（43），其通过插入在管道中的压力传感器（42）检测冷却空气的压力; 连接空气压缩机（31）和喷射器的空气管路; 以及灯控制器，其根据由压力检测器（43）检测到的空气压力来控制关闭所述光源灯。 空气压缩机（31）以高控制频率驱动，空心柔性硅管用作空气管道，以减少空气的脉动。

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