Advanced Continuous Brazed Cold Plate Technology Precision Liquid Cooling for High-Power Electronics

Aluminum's liquid cold plate is a production-optimized thermal component engineered to meet the demanding requirements of today's utility-scale and commercial battery energy storage projects. The core of our design philosophy is simple: deliver consistent, measurable thermal performance at a cost structure that works for high-volume BESS deployment. We achieve this by precision-stamping flow channel geometry into 3003 aluminum sheet, a process that ensures uniform channel depth and exceptional surface flatness for optimal module-to-plate contact. The cooling circuit is sealed using a flux-free, solid-state bonding technique that creates a permanent, homogeneous structure, backed by a 100% helium leak test (<1×10⁻⁷ mbar·L/s). Available in custom dimensions up to 2400mm, with integrated mounting bosses and a choice of surface treatments, this cold plate is built for project developers who need a reliable, scalable, and fully documented thermal solution from pilot to mass production.

• Stamped Channels: Complex flow paths formed in seconds at low cost, ideal for high-volume scaling.
• Leak-Proof Construction: Solid-state sealed for permanent, maintenance-free operation with no internal contaminants.
• Custom Configurable: Size, port locations, mounting bosses, and surface treatments can be tailored to your module layout.
• Fast Sample Turnaround: Functional prototypes delivered in weeks, using the same production-ready process.
• Certification Support: Full documentation and material traceability to assist with UL 1973 and UL 9540A compliance.

Trumony's cold plate is designed to solve supply chain challenges without cutting corners on performance:

· Speed of Stamping: Once the progressive die is set, channels are formed in seconds per plate. This allows us to ship thousands of identical, high-quality plates per month, keeping your assembly line moving.
· Predictable Cost Trajectory: Because stamping is a fast, low-labor process, unit economics improve naturally with volume. We pass this structure through with transparent, tiered pricing.
· Single-Process Validation: We use the exact same stamping tooling and sealing method for prototype samples as for volume production. The thermal performance data you gather from a sample is identical to what every production plate will deliver.
· Scalable Customization: We work with you to finalize channel routing and port placement before committing to the stamping die. Once the die is qualified, scaling up is simply a matter of scheduling production runs.

• The continuous brazed cold plate operates as a high-efficiency counterflow heat exchanger integrated directly into the heat source. Here is the thermal pathway in sequence:

  1. Thermal Collection: Heat generated by the semiconductor junction or battery cell surface migrates through a thin, high-conductivity thermal interface material (TIM) into the cold plate's precision-ground top face.
  2. Spreading & Conduction: The solid aluminum lid conducts heat downward into the internal fin field, where the continuous brazed joints ensure no thermal constriction occurs at the bond interface.
  3. Fluid-Side Convection: Coolant entering the inlet manifold is evenly distributed across hundreds of micro-channels or pin arrays. As the fluid velocity increases within these constricted pathways, the flow transitions from laminar to turbulent — dramatically increasing the convective heat transfer coefficient.
  4. Heat Rejection Loop: The heated coolant exits through the outlet manifold and travels to a remote Cooling Distribution Unit (CDU), where a liquid-to-air or liquid-to-liquid heat exchanger rejects the thermal energy to the ambient environment.
  5. Closed-Loop Return: Cooled fluid returns to the pump and reservoir, completing the circuit. The entire system operates under slight positive pressure to prevent air ingestion and cavitation.