Liquid Cooling - Blister Heat Sinks

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Products / Liquid Cooled Cold Plates / Blister Cold Plates

Blister Cold Plates

Aavid Thermalloy Blister cold plates represent an important innovation in cold plate design. Rather than milling channels inside a base plate and covering them with a flat cover plate, Blister technology stamps the channels into the cover plate reducing base plate machining and greatly lowering manufacturing costs for high volume application. CAB brazing creates a leak free joint between the base and cover plate. Unlike milled cold plates, the blister water channels allow greater flexibility to drill mounting holes in the opposite side of base plate without regard for water passages.

Datasheet

Specification , Design Guidelines Ordering Information

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Performance

Performance of a cold plate is dependent on a number of factors including power dissipation of the device cooled, cooling fluid, size of the cold plate along with the fluid and ambient temperatures. Below are two examples to illustrate the performance of Aavid blister cold plate technology. The examples shown use pure water as the cooling fluid. Temperatures are measured in the center of the device.
Example 1: Single IGBT 162mm x 122mm Power Dissipation: 2.5kW Coolant: Water Inlet water temp: 40° C Flow Rate: 6 liters per min		Example 2: Four IGBTs 108mm x 62mm Power Dissipation: 4kW Coolant: Water Inlet water temp: 40° C Flow Rate: 6 liters per min
310 x 150mm Blister LCP with a 162 x 122mm IGBT - 2.5kW		310 x 150mm Blister LCP with a 4 x 108 x 62mm IGBTs - 4kW
Results (See Graph) Rth = 14°C/kW T sink = 75° (measured at the center of the module) DP = 0.08 bar (8 kPa)		Results (See Graph) Rth = 7° C/kW T sink = 68° (measured at the center of the module) DP = 0.16 bar (16 kPa)