Jet Impingement Liquid Cooling Cold Plate High Frequency Thermal Management
High-Frequency Jet Impingement Liquid Cooling Plate (also commonly referred to as Jet Impingement Cold Plate) is a specialized liquid cooling solution designed for ultra-high heat flux and ultra-fast temperature uniformity applications. Its core mechanism achieves extreme heat dissipation by directly impinging the inner wall of the heating surface with high-frequency, high-speed, and high-pressure micro-jets.
Traditional Liquid Cooling Plate: Coolant flows in parallel within enclosed channels for heat exchange, featuring thick thermal boundary layers, high thermal resistance, and susceptibility to hot spots at distant positions.
High-Frequency Jet Impingement Type:
- Coolant passes through a dense array of micro-nozzles (diameter 0.1-1 mm)
- Impinges vertically at high speed onto the inner wall of the cold plate (heating surface)
- Instantly breaks the thermal boundary layer, increasing local heat transfer coefficient by 5-10 times
- Fluid diffuses rapidly and drains laterally, achieving extremely uniform temperature across the entire area (temperature difference < ±1℃)
- Upper Chamber (Distribution Chamber): Stabilizes pressure and distributes coolant evenly to nozzles
- Nozzle Plate: Core component with hundreds to thousands of precision micro-holes (high-frequency jet array)
- Impingement Chamber (Heat Exchange Zone): Jet impingement and intensive convective heat transfer
- Liquid Collection Chamber / Drainage Channel: Quickly discharges the heat-absorbed coolant
- Extremely High Heat Dissipation Capacity: Heat flux density: 200-1000 W/cm² (ordinary brazed plate approx. 50 W/cm²); Thermal resistance as low as 0.01-0.03 ℃/W
- Excellent Temperature Uniformity: Full-surface temperature difference: ±0.5-±1℃; Completely eliminates local hotspots
- Fast Response Speed: Low thermal inertia, precise temperature control, suitable for transient high-power and pulse heating scenarios
- Relatively High Pressure Drop: Requires matching high-pressure pump / high-flow cooling system
- High Manufacturing Precision Requirements: Nozzle hole diameter, depth, and position tolerance: ±0.02-±0.05 mm
- Precision Drilling + Vacuum Brazing: Suitable for circular hole arrays with stable mass production; Common materials: aluminum alloy / copper alloy, brazed sealing
- Photolithography / Etching + Diffusion Bonding: Suitable for special-shaped nozzles and micro-scale slot jets; Finer flow channels and lower thermal resistance (for AI/GPU/laser applications)
- 3D Printing (SLM): Integrated forming with complex topological channels + nozzles; Lightweight design, suitable for customized aerospace components
- AI / Supercomputing Chips: H100/H200, GPU clusters, TPUs (>500W chips)
- SiC / GaN Power Modules: 800V electric drives, ultra-fast charging stations
- High-Power Lasers: fiber / semiconductor / UV lasers (heat flux > 300W/cm²)
- Radar / Phased Array: T/R components, 5G/6G base stations
- Medical Imaging: MRI gradient amplifiers, CT detectors (temperature control accuracy ±0.5℃)
- Aerospace: satellite payloads, missile guidance (vibration-resistant, lightweight, high heat flux)
| Performance | Conventional Flow Channel Liquid Cooling Plate | High-Frequency Jet Impingement Liquid Cooling Plate |
|---|---|---|
| Heat Flux Density | < 50 W/cm² | 200-1000 W/cm² |
| Thermal Resistance | 0.1-0.5 ℃/W | 0.01-0.03 ℃/W |
| Temperature Uniformity | Temperature difference 3-10℃ | Temperature difference < ±1℃ |
| Pressure Drop | Low (0.5-2 bar) | High (2-8 bar) |
| Application Scenarios | Conventional power devices | Ultra-high heat flux, hotspot-sensitive, high-precision temperature control |
High-Frequency Jet Impingement Liquid Cooling Plate represents the state-of-the-art liquid cooling technology in modern industry, designed specifically for extreme heat flux, ultimate temperature uniformity, and high-precision temperature control applications.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.