粘合翅片与铲削翅片散热器:哪种制造方法更胜一筹?
粘合翅片与铲削翅片散热器:哪种制造方法更胜一筹?

粘合鳍片散热器通常在高产量、低成本且需要中等热性能的应用中表现更优,而刮削鳍片散热器则是高深宽比、高密度鳍片阵列的最佳选择,因为此类应用对最大表面积和热效率要求严苛。刮削鳍片可实现低至0.15毫米的鳍片厚度,鳍片高度可达100毫米,而粘合鳍片的厚度限制为0.5毫米,最大鳍片高度为60毫米。当月产量超过5,000件时,粘...

什么是自然对流散热器?被动冷却设计指南
什么是自然对流散热器?被动冷却设计指南

自然对流散热器是一种被动式热管理组件,仅通过浮力驱动的气流散热,无需风扇或泵。其原理基于热空气上升,形成持续的自然气流,将热量从翅片表面带走。本指南提供了在可靠性、静音和零功耗至关重要的应用中实施自然对流冷却的工程规格、性能数据和设计规则。自然对流冷却实际上是如何工作的?自然对流依赖于受热空气与环境空气之间的密度梯度。...

CFD热仿真如何优化散热器设计性能?
CFD热仿真如何优化散热器设计性能?

直接回答是:CFD(计算流体动力学)热仿真通过在制造任何物理原型之前预测翅片结构上的气流和温度分布来优化散热器性能,使工程师能够将热阻降低高达30%,并将开发周期相比试错法缩短40%。通过求解流体流动和传热的耦合方程,CFD能够识别手工计算无法发现的死区、旁路气流和翅片效率损失,从而针对特定应用条件进行几何优化。在BQ...

冲压散热器:金属冲压何时适用于冷却?
冲压散热器:金属冲压何时适用于冷却?

冲压散热器在高产量生产(通常每年超过10,000件)、翅片几何形状为简单的2D或半3D结构、且铝材单件成本要求低于0.50美元或铜材低于0.80美元时,是最合理的选择。金属冲压是所有热管理制造工艺中单件成本最低的,节拍时间为每分钟15至60件,但它在设计自由度和热性能方面不如CNC加工或铲齿工艺。如果您的热预算允许结到...

5G电信设备的最佳散热器解决方案是什么?
5G电信设备的最佳散热器解决方案是什么?

最适合5G和电信设备的高性能散热解决方案是高密度强制对流铝翅片堆或铜均热板,具体取决于功率范围和外形尺寸。对于功率超过150 W的基站,采用铝粘合翅片或铲削翅片散热器是标准方案,其热阻低于0.08 °C/W;而对于功率低于100 W的紧凑型远端射频单元(RRU),导热系数为3000 W/m·K的均热板性能优于实心铜。在...


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