INDUSTRY COMPONENT

Heat Sink Structure

A heat sink structure dissipates heat from electronic or mechanical components to maintain optimal operating temperatures.

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Component Specifications

Definition
A heat sink structure is a passive thermal management component designed to transfer heat from a heat-generating source (e.g., CPU, power transistor) to a fluid medium (air or liquid), thereby reducing the temperature of the source. It typically consists of a base plate and extended surfaces (fins) that increase surface area for convective heat transfer. The structure may include features such as heat pipes, vapor chambers, or pin fins to enhance thermal performance. It is commonly used in electronics cooling, automotive systems, and industrial machinery.
Working Principle
Heat sinks operate on the principles of thermal conduction and convection. Heat from the source conducts into the base plate, then spreads to the fins. The large surface area of the fins allows heat to dissipate into the surrounding air via natural or forced convection (using fans). Some designs incorporate heat pipes that use phase change to transfer heat efficiently.
Materials
Common materials include aluminum (alloys 6061, 6063) for lightweight and good thermal conductivity, copper (C1100) for higher conductivity, and advanced composites like graphite or diamond for specialized applications. Surface treatments may include anodizing, nickel plating, or black coating to enhance emissivity.
Technical Parameters
  • Fin Pitch 2-10 mm
  • Base Thickness 3-10 mm
  • Overall Dimensions Custom
  • Thermal Resistance 0.1-5.0 °C/W
  • Max Operating Temperature 200 °C
Standards
ISO 9001, DIN 5510

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Heat Sink Structure.

heat sink thermal management heat dissipation cooling aluminum heat sink copper heat sink fin design thermal resistance Heat Sink Structure Heat Sink Structure in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Heat Resistance

A material's ability to withstand high temperatures without significant degradation or failure.

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Engineering Analysis

Risks & Mitigation
  • Insufficient thermal contact leading to high thermal resistance
  • Fin damage or clogging reducing airflow
  • Corrosion in humid environments
FMEA Triads
Trigger: Poor surface flatness or insufficient thermal paste
Failure: High thermal resistance, overheating
Mitigation: Ensure flatness within 0.05 mm, use high-quality thermal interface material
Trigger: Fin blockage by dust or debris
Failure: Reduced airflow, increased temperature
Mitigation: Regular cleaning, use of dust filters

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1 mm on critical dimensions
Test Method
Thermal resistance measurement per ASTM D5470

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the purpose of fins on a heat sink?

Fins increase the surface area available for heat transfer to the surrounding air, improving convective cooling efficiency.

How do I choose between aluminum and copper heat sinks?

Aluminum is lighter and cheaper with good thermal conductivity; copper offers higher conductivity but is heavier and more expensive. Choose based on weight, cost, and thermal requirements.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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Heat Sink Fins Heat Transfer Plate