Why use liquid cold plates?

Leverage the high heat capacity of liquid to quickly absorb more heat than air cooled thermal management solutions. Coldplates excel at dissipating high-density, high-output heat loads within a diverse range of system configurations, facilitating the effective transfer of heat into the liquid cooling system.

How do liquid cold plates work?

A cold plate by itself does not cool devices; it must be integrated into a liquid loop that includes a pump for fluid circulation and a heat exchanger to reject the heat absorbed by the cold plate.

Why choose Eaton for your liquid cold plate?

Eatn's engineers excel at developing and manufacturing high quality, compact and durable coldplates to meet your system requirements while reducing weight and complexity. We leverage accurate performance simulations based off decades of empirical data to quickly optimize cold plate design and accelerate your design cycle. Eaton's extensive fabrication methods and 100% leak-tested construction options help you reduce product weight, push performance or decrease overall assembly size with high performance LCPs.

Meet application requirements with the right construction

Since liquid cooling is utilized in a wide variety of applications, Eaton has developed a diverse range of liquid cold plate technologies to offer customers an optimized solution for their application. Our engineering team leverages the best fit technology to meet project requirements like thermal performance, flow rate, resistance and pressure drop, wetted path materials, weight, durability and geometry.

Learn more about our most popular LCP technologies:

• Stamped liquid cold plates
• Machined liquid cold plates
• Round tube liquid cold plates
• Flat tube liquid cold plates

Machined liquid cold plates

Machined and brazed cold plates offer the most flow path and structural geometry customization for a heat source to liquid system interface. Optimize complex, 100% leak-tested flow channels with precision CNC machining and high-quality CAB or vacuum brazing. Eaton's broad technology portfolio enables additional performance boost with fin inserts to further enhance heat transfer into the liquid system.

Round tube liquid cold plates

Eaton Boyd Thermal round tube LCPs are cost-effective component cooling for low to moderate heat loads. Tubed cold plates consist of copper or stainless-steel tubes pressed into channeled aluminum plates. Tube cooling plates are available with either continuous tube styles or a manifold style. Enhance tube cold plate performance with the addition of turbulators by 5-15%.

Flat tube manifold liquid cold plates

Flat tube cold plates are ideal to cool small, high heat density components like thermoelectric coolers in limited vertical spaces. Using thin-walled aluminum multi-port extrusion (MPE) tubing, flat tube cooling plates minimize thermal resistance between the cold plate and heat source and produce surface thermal uniformity. Flat tube LCPs use more viscous fluids like ethylene glycol and water (EGW), oils, 3M Fluorinert and Polyalphaolefin (PAO) with their enhanced internal surface area and low pressure drop.

Materials

• Aluminum
• Copper
• Stainless steel

Wetted path needs to be compatible with other components in the liquid loop. Mixing copper and aluminum leads to galvanic corrosion that decreases system performance and lifetime.

Flow path options

• Meso-channel
• Parallel channel
• Tube and/or manifold

Manufacturing processes

• CNC machining
• Friction stir welding
• Stamping
• CAB brazing
• Vacuum brazing