液晶拼接屏应用于飞机布线的散热方法研究  

Research on the Application of LCD Splicing Screen in Aircraft Wiring

作　　者：李飞飞 刘贡平 程佳敏 田春林[1,3] LI Fei-fei;LIU Gong-ping;CHENG Jia-min;TIAN Chun-lin(College of Mechanical and Electrical Engineering,Changchun University of Science and Technology,Jilin Changchun 130022,China;Xi’an Aircraft Industry(Group)Company LTD,Shaanxi Xi'an 710000,China;Guangdong Guangji High-Tech Company LTD,Guangdong Foshan 528000,China)

机构地区：[1]长春理工大学机电工程学院,吉林长春130022 [2]西安飞机工业(集团)有限责任公司,陕西西安710000 [3]广东光机高科技有限责任公司,广东佛山528000

出　　处：《机械设计与制造》2023年第3期71-74,共4页Machinery Design & Manufacture

基　　金：吉林省科技发展计划项目(20170312021ZG,20200401139GX)。

摘　　要：传统的液晶拼接屏摆放方式为直立式,电源板和液晶屏之间热量传递极少。然而针对液晶拼接屏作为图像显示辅助单元应用于飞机布线工程中时,采取平放方式,屏幕上方2mm位置处布置防护用钢化玻璃,因此就会使屏幕与外界难以进行正常的热量交换,造成屏幕热量积聚,影响引导布线工作的正常进行。为了解决拼接屏在该工况下的散热问题,利用Icepak对电源背板系统进行热仿真分析,获得温度和气流分布情况,并针对高温区制定风冷散热方案,实现了电源板传递到液晶屏内部时温度降低10°C左右,钢化玻璃上表面温度降到35°C以下,保障了布线工作的正常进行。Traditional way of liquid crystal splicing screen display for the upright,power plate and the heat transfer between the LCD panel is few.However,in view of the LCD splicing screen as image display auxiliary unit used in aircraft wiring project,flat,2mm above the screen location layout protection with toughened glass,thus makes the screen to the normal heat exchange with the outside world,caused the screen heat accumulation,affect lead wiring work.In order to solve the splice screen under the conditions of thermal problems,power supply back system to make use of Icepak thermal simulation analysis,obtained the temperature and air flow distribution of cooling and high temperature,implement the power board is passed to the LCD panel when internal temperature by about 10°C,toughened glass on the surface temperature dropped to below 35°C,safeguard the normal of the wiring work.

关 键 词：液晶拼接屏 热源分析 强迫风冷 仿真分析 

分 类 号：TH16[机械工程—机械制造及自动化] TK17[动力工程及工程热物理—热能工程]