🔩 Conductive Coupling Calculator

Series kA/L path · per-segment conductance & ΔT · total coupling G

Ad placeholder

Series Path (heat source → sink)

Up to 5 segments in series. Zero/blank area or length = segment skipped. Bolted-joint rows use a direct conductance instead of kA/L.

最多 5 段串联。面积或长度留空/为 0 = 跳过该段。螺接界面行直接填接触热导，不用 kA/L。

MaterialArea (cm²)Length (mm)G (W/K)ΔT (K)

Heat Flow

Results

Total conductance G
– W/K
Total resistance
– K/W
Total ΔT at Q
– K
Active segments
–
Ad placeholder

📖 How to use

  1. Model the path from the dissipating unit to the sink as series segments: bracket, joint, structure, strap… pick materials and enter cross-section and length.把从发热单机到热沉的路径拆成串联段：支架、结合面、结构、热带……选材料并填截面与长度。
  2. Bolted joints dominate many paths — the "Bolted joint" row uses a direct contact conductance (0.1–0.4 W/K per M4-class bolt typical in vacuum).螺接界面常常是路径瓶颈——"螺接界面"行直接填接触热导（真空中 M4 级螺栓典型 0.1–0.4 W/K/颗）。
  3. Enter the heat flow Q to see per-segment and total ΔT; use the total G in the Heater tool.填入热流 Q 查看各段与总 ΔT；总 G 可用于加热器工具。
  4. To thermally isolate (e.g. a battery), use GFRP/PEEK washers — note how G collapses with low-k materials.需要隔热安装时（如蓄电池）用玻璃钢/PEEK 垫——注意低导热材料使 G 急剧减小。

Series conduction

Each segment conducts G_i = k·A/L; series segments add as resistances: 1/G_total = Σ 1/G_i, and the drop across each is ΔT_i = Q/G_i.

Typical conductivities (W/m·K): Cu 390, Al 6061 167, Al 7075 130, steel 16, Ti-6Al-4V 7, CFRP ~10 (in-plane, layup-dependent), GFRP 0.5, PEEK 0.25. Bolted joints in vacuum are contact-conductance limited and should be measured or taken from heritage.

All computation runs locally in your browser.

串联导热

每段热导 G_i = k·A/L；串联按热阻相加：1/G_总 = Σ 1/G_i，各段温降 ΔT_i = Q/G_i。

典型导热系数（W/m·K）：铜 390、铝 6061 167、铝 7075 130、钢 16、钛 TC4 7、碳纤维板约 10（面内，随铺层变化）、玻璃钢 0.5、PEEK 0.25。真空中螺接界面受接触热导限制，应实测或取飞行继承数据。

全部计算在你的浏览器本地完成。