BY MANUFACTURING METHOD
The Liquid Cold-plates business unit offers aluminium liquid cold-plates, from small components for cooling LEDs or lasers to large units for cooling insulated-gate bipolar transistors (IGBTs). Thanks to our in-house design team, we can design high-performance cold-plates, optimising them with CFD analysis and performing qualification tests in our laboratory.
The cold-plates are manufactured in our in-house CNC department and assembled using Vacuum Brazing (VB) and Friction Stir Welding (FSW) processes. Thanks to our in-house vacuum furnaces and FSW expertise, we can provide prototypes quickly.
We offer a range of cold-plates, customisable to meet your precise thermal performance requirements.
FIVE CATEGORIES BASED ON INTERNAL HEAT EXCHANGE TECHNOLOGY
CT-structure
This category is typically used when high performance and a certain level of cold-plate resistance are required and is mainly applied to the cooling of IGBTs or thyristors. These components are manufactured using milling processes and can be produced with both Friction Stir Welding (FSW) and Vacuum Brazing (VB).
CT-thin
In this category, the form factor of the cold-plate is of paramount importance, often outweighing considerations of performance. The defining feature of this category is the cold-plate’s thickness, which can be less than 10 mm, and sometimes as little as 4–5 mm. Typically used for cooling batteries. These cold-plates can be produced using a combination of pressing and milling methods, incorporating Friction Stir Welding (FSW) and Vacuum Brazing (VB).
CT-die
This category comprises a combination of a die-cast housing for liquids, where a component is friction-welded to increase thermal performance. It offers an optimal balance of cost and performance, particularly for high production volumes (>10,000 per year in current production).
The joining technology used is Friction Stir Welding (FSW).
CT-ET
These cold-plates consist of a copper or stainless-steel tube pressed into a milled aluminium base plate. The tubes are secured by deformation with a thermally conductive epoxy resin filling the space between the aluminium plate and the tube. CT-ET cold-plates are assembled using copper or stainless steel (AISI 316L) tubes.
CT-TO
Cold-plates made entirely of copper for specific applications. This product category offers a choice between internally milled channels and pin fin technology.