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发布时间: 2013 - 11 - 29
The LEAG Antriebstechnik AG with over thirty years experience in the field of drive and control technology, develops, manufactures and tests their products in-house.The product range is broad and covers mainly the areas of Automation, Robotics, Retrofit, laser systems and medical technology from. Also special solutions for industrial electronics find their place with us.We place great emphasis on outstanding quality, ease of use, reliability and durability of our products. Accordingly, we make sure that the relevant standards for the manufacture of electronics products and equipment knits are respected. Our products are stocked by qualified staff, soldered and assembled so that the set criteria and requirements can be complied with. In addition, each unit is subjected to by our professiona...
发布时间: 2013 - 11 - 29
The LEAG Antriebstechnik AG with over thirty years experience in the field of drive and control technology, develops, manufactures and tests their products in-house.The product range is broad and covers mainly the areas of Automation, Robotics, Retrofit, laser systems and medical technology from. Also special solutions for industrial electronics find their place with us.We place great emphasis on outstanding quality, ease of use, reliability and durability of our products. Accordingly, we make sure that the relevant standards for the manufacture of electronics products and equipment knits are respected. Our products are stocked by qualified staff, soldered and assembled so that the set criteria and requirements can be complied with. In addition, each unit is subjected to by our professiona...
发布时间: 2013 - 11 - 29
or over 40 years Mclennan has been a leading supplier of motion control products, services and systems serving the UK, Ireland and more recently France.  In certain niche markets such as scientific research and vacuum science we sell solutions, components and assemblies worldwide.  We specialise in motor sizes 1kW and less but many of our solutions are 100W or less, but do have larger motors if required for special projects. We have the capability for manufacture mechanical parts; carry out mechanical assembly and electrical wiring.  This combination of distribution, manufacturing and systems integration capability allows us to provide custom solutions, including manufacture of sub assemblies, complete control systems and mechanical mechanisms. Our own electronic designs inc...
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最新符合高可靠LED显示屏的设计要求

Date: 2013-12-11
Views: 38

      LED显示屏技术发展,客户对其认知度的加深,新客户对LED显示屏的稳定性、可靠性要求的越来越高。所以生产厂家为了符合要求,必须设计出更高可靠的LED显示屏。
 

      目前,LED显示屏行业标准《LED显示屏通用规范SJ/T11141》,在这一行业标准和《电子测量仪2S可靠性试验GBll463》对LED显示屏进行可靠性测定试验,实际上很难实现MTBF不低于10000小时这一可靠性要求,更不能满足高可靠性LED显示屏的要求。而要做得具有高可靠性的LED显示屏,配套产品材料要有很大的提高,设计要求必须包括成热、合理、先进。

 

      一、配套产品材料
    1、LED发光管。
    LED发光管是LED电子显示屏的关键器件,应采用目前成熟可靠的LED产品。产品特点:
    定性好,离散性小。
  ESD指标高:HBM大于4000V。
  衰减幅度小:1000小时小于5%
  耐压能力强:Vr=10V,Ir<2uA
  亮度、波长、角度一致性高。
  配光效果佳:完美的配光曲线。
  可抵御温差、潮湿和紫外线,适用于户外环境。

  

2、箱体。
整体采用钢板或铝材,采用开门结构。箱体顶部采用销钉和底部采用导向套,保证箱体间精确定位。
箱体整体防护符合IP66标准。结构要充分考虑散热。
 

3、开关电源。
显示屏供电采用通过认证的著名品牌开关稳压电源模块,所有的开关电源都经过严格的测试、筛选、老化。确保完全符合国际安全及质量认证要求,以适 应显示屏长期稳定可靠工作的要求。在额定工作条件下.确保使用寿命大于10年。
 

4、接插件。
接插件是系统中的重要连接器件。应采用优质接插件产品,以保证接插件的纯金镀层的厚度,保持最佳的电气连接性能。保证系统在高温、高湿环境下良好的电气连接性能,
可以使系统长期稳定可靠地运行。
 

5、电路板。
电路板采用阻燃环氧板材,设计布局合理,走线规范,满足电磁兼容性和电路稳定性的要求。加工厂家应选择知名厂家生产的产品。
 

6、驱动芯片IC器件。
驱动电路采用国际著名品牌的恒流驱动芯片。在大温度范围内,保持高精度的恒定电流输出和高可靠性,能使显示屏的均匀性和可靠性显著改善。显示系统主要材料应通过CE、FCC、UL、CCC等认证。


 

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