--- type: "product_component" title: "Precision Heat Sink Assembly" industry: "Manufacture of Lighting Equipment" verification_protocol: urn: "URN:CNFX:ME:PRECISION_HEAT_SINK_ASSEMBLY" data_integrity_hash: "07932dd32631b882fc1631439edf5aaf" source_authority: "https://cnfx.com" strict_mode: true source_identity: provider: "CNFX Industrial Knowledge Graph" index_version: "2026.Q1-Universal" authority_id: "URN:CNFX:ME:PRECISION_HEAT_SINK_ASSEMBLY" data_source_uri: "https://cnfx.com/llms/industry/manufacture-lighting-equipment/product/precision-heat-sink-assembly.md" official_resource_url: "https://cnfx.com/industry/manufacture-lighting-equipment/product/precision-heat-sink-assembly" is_verified_logic: true attributes: thermal_resistance: status: "verified" value: "0.5–1.5" unit: "°C/W" base_plate_thickness: status: "verified" value: "3–6" unit: "mm" fin_height: status: "verified" value: "20–50" unit: "mm" fin_pitch: status: "verified" value: "4–10" unit: "mm" weight: status: "verified" value: "0.5–2.5" unit: "g" surface_finish: status: "verified" value: "Anodized" unit: "Ra" material: status: "verified" value: "6063-T5" unit: "" operating_temperature: status: "verified" value: "-40–85" unit: "°C" ip_rating: status: "verified" value: "IP54–IP65" unit: "" tolerance: status: "verified" value: "±0.1" unit: "mm" thermal_conductivity: status: "verified" value: "180–210" unit: "W/(m·K)" engineering_limits: max_safe_operating_point: value: 105 unit: "°C" consequence: "Thermal interface material degradation above glass transition temperature (Tg=110°C for silicone-based TIMs), reducing thermal conductivity from 3.5 W/m·K to <0.5 W/m·K" fmea_matrix_quantitative: - node_1: trigger: "Thermal cycling stress (ΔT=60°C, 1000 cycles)" severity: 8 occurrence: 3 detection: 4 mitigation_protocol: "Copper-core solder joints with 0.3mm standoff height and corner fillets" - node_2: trigger: "Aluminum fin corrosion in chloride environments (>500ppm Cl⁻)" severity: 8 occurrence: 3 detection: 4 mitigation_protocol: "Anodized aluminum fins with 25μm coating thickness and hydrophobic surface treatment" bom_nodes: base-plate: type: "component" llms_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/component/base-plate.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:BASE_PLATE" urn: "URN:CNFX:ME:UNIT:BASE_PLATE" interface_type: "physical-logic-coupled" is_migrated_part: true cooling-fins: type: "component" llms_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/component/cooling-fins.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:COOLING_FINS" urn: "URN:CNFX:ME:UNIT:COOLING_FINS" interface_type: "physical-logic-coupled" is_migrated_part: true mounting-brackets: type: "component" llms_uri: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/component/mounting-brackets.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:MOUNTING_BRACKETS" urn: "URN:CNFX:ME:UNIT:MOUNTING_BRACKETS" interface_type: "physical-logic-coupled" is_migrated_part: true thermal-interface-pad: type: "component" llms_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/component/thermal-interface-pad.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:THERMAL_INTERFACE_PAD" urn: "URN:CNFX:ME:UNIT:THERMAL_INTERFACE_PAD" interface_type: "physical-logic-coupled" is_migrated_part: true manufacturing_compliance: - standard: "ANSI/ASME Y14.5-2018 - DIMENSIONING AND TOLERANCING" scope: "Verified Engineering Specification" - standard: "DIN EN 1676:1997 - ALUMINIUM AND ALUMINIUM ALLOYS - EXTRUDED ROD/BAR, TUBE AND PROFILES" scope: "Verified Engineering Specification" url: "https://cnfx.com/llms/industry/manufacture-lighting-equipment/product/precision-heat-sink-assembly.md" on_chain_sovereignty: contract_standard: "ERC-721-Industrial" metadata_hash: "e36ad6bc5cc022b8a5259a064a1c787b1e36c080b6d53bd3486c6a71c669c8cc" royalty_logic: "IPFS-CID-REQUIRED" mint_status: "logic-verified-ready" rag_vector_index: semantic_queries: - "Precision Heat Sink Assembly" - "heat sink assembly" - "LED thermal management" - "aluminum heat sink" - "LED driver cooling" - "thermal resistance" - "Precision Heat Sink Assembly in Manufacture Lighting Equipment" - "China Precision Heat Sink Assembly manufacturer" - "Precision Heat Sink Assembly supplier China" - "Precision Heat Sink Assembly thermal_resistance" - "Precision Heat Sink Assembly base_plate_thickness" - "Precision Heat Sink Assembly fin_height" version: "3.3.5-EXTREME-SOVEREIGN-WEB3" --- # Industrial Specification: Precision Heat Sink Assembly ## 1. Technical Definition Thermal management component for LED lighting systems that dissipates heat from electronic drivers. ## 2. Engineering Reasoning & Causal Matrix > **Operational Intelligence**: Designed for **15-85°C baseplate temperature**. Failure boundary: **105°C baseplate temperature sustained for 30 minutes**, Mechanism: **Thermal interface material degradation above glass transition temperature (Tg=110°C for silicone-based TIMs), reducing thermal conductivity from 3.5 W/m·K to <0.5 W/m·K**. ### 2.1 Analytical Physics Model Governed by the **LMTD Logarithmic Mean Temperature Difference**: > **Primary Equation**: $Q = U \cdot A \cdot \Delta T_{lm}$ > **Engineering Impact**: Sizing validation for pasteurization and cooling tunnels. | Symbol | Variable Definition | Localized Reference | | :--- | :--- | :--- | | U | Heat Transfer Coeff | Engineering Constant | | A | Area | Engineering Constant | | \Delta T_{lm} | LMTD | Engineering Constant | ### 2.2 FMEA (Failure Mode & Effects Analysis) | Event Trigger | Severity | Failure Mode | Mitigation Strategy | | :--- | :--- | :--- | :--- | | Thermal cycling stress (ΔT=60°C, 1000 cycles) | 8 | Solder joint fatigue cracking at LED driver attachment points | Copper-core solder joints with 0.3mm standoff height and corner fillets | | Aluminum fin corrosion in chloride environments (>500ppm Cl⁻) | 8 | Fin efficiency reduction from 85% to <40% due to oxide layer buildup | Anodized aluminum fins with 25μm coating thickness and hydrophobic surface treatment | ## 3. Key Technical Parameters | Parameter | Value | Unit | Status | | :--- | :--- | :--- | :--- | | Thermal Resistance | 0.5–1.5 | °C/W | Verified | | Base Plate Thickness | 3–6 | mm | Verified | | Fin Height | 20–50 | mm | Verified | | Fin Pitch | 4–10 | mm | Verified | | Weight | 0.5–2.5 | g | Verified | | Surface Finish | Anodized | Ra | Verified | | Material | 6063-T5 | | Verified | | Operating Temperature | -40–85 | °C | Verified | | IP Rating | IP54–IP65 | | Verified | | Tolerance | ±0.1 | mm | Verified | | Thermal Conductivity | 180–210 | W/(m·K) | Verified | ## 4. System BOM & Knowledge Routing ### Core Components (Recursive Links) ### Industrial DNA Context (De-duplicated) **Complementary Dependencies**: **CNC Machining Center**, **Anodizing Line**, **Thermal Testing Chamber** **Downstream Applications**: LED Street Lights, LED High Bay Lights, LED Flood Lights ## 5. Engineering Risks & FAQ - **Caution**: - **Caution**: - **Caution**: ### Q: What is the primary function of this heat sink assembly? **A**: The primary function is to dissipate heat generated by LED driver electronics, maintaining optimal operating temperatures to ensure LED efficiency and longevity. ### Q: What materials are used in this assembly? **A**: The assembly uses Aluminum Alloy 6063 (grade 6063-T5), thermal interface material, and an anodized coating. These materials are selected for good thermal conductivity and corrosion resistance. ### Q: What are the key thermal parameters to consider? **A**: Key parameters include thermal resistance (0.5–1.5 °C/W), thermal conductivity (180–210 W/(m·K)), and operating temperature range (-40–85 °C). These values are reference ranges and must be verified for the specific model. ### Q: How should I verify compliance with standards? **A**: Standards such as GB/T 5237 for material, IEC 60529 for IP rating, ISO 2768 for tolerance, and ASTM E1225 for thermal conductivity are listed as verification references. You must confirm with the legal manufacturer or supplier that the specific model meets these standards. ## 6. Manufacturing Compliance - ANSI/ASME Y14.5-2018 - DIMENSIONING AND TOLERANCING - DIN EN 1676:1997 - ALUMINIUM AND ALUMINIUM ALLOYS - EXTRUDED ROD/BAR, TUBE AND PROFILES --- ### 🛠️ Engineering Resource Access 🔗 **[Full Specification: Precision Heat Sink Assembly](https://cnfx.com/industry/manufacture-lighting-equipment/product/precision-heat-sink-assembly)** ### 🌐 Knowledge Graph Topology > **Node Status**: Verified Engineering Spec > **Connectivity**: Linked to **4** standalone system nodes > **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph > **Reference ID**: PRECISION_HEAT_SINK_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 4b4fe78b