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Power liquid cooling plate refers to a high-power liquid cooling heat sink specially designed for power electronic equipment. It is mainly used in scenarios such as photovoltaic inverters, wind power converters, SVG, high-voltage inverters, PCS energy storage converters, and high-voltage power transmission and transformation equipment.
It features high pressure resistance, large current carrying capacity, high reliability, long service life and corrosion resistance, belonging to industrial-grade / power-grade water cooling components.
I. Typical Application Equipment
Photovoltaic inverters / central inverters
Wind power converters, full-power converters
Energy storage converters (PCS)
High-voltage inverters, transmission devices
Static Var Generators (SVG)
Flexible HVDC (MMC), converter valves
High-power rectifier power supplies, electroplating / electrolysis power supplies
Charging piles, power units of ultra-fast charging modules
Core heat dissipation targets: IGBTs, SiC power modules, diodes, reactors, power resistors, etc.
II. Core Design Features
High power and high heat flux density
Single module power often ranges from dozens of kW to hundreds of kW with high heat flux density, requiring low flow resistance and high heat exchange efficiency.
High pressure resistance and anti-leakage
Power equipment operates continuously for a long time, requiring a water pressure resistance of 3–10 bar.
Must pass helium mass spectrometer leak detection with nearly zero leakage.
Reasonable flow channel design
Commonly used designs:
Single / double-layer serpentine flow channels
Multi-branch parallel flow channels
Turbulators / pin fins for enhanced heat transfer
Ensures temperature uniformity and avoids local hotspots that cause equipment failure.
V. Differences from Standard Liquid Cooling Plates
Operating life: 20 years of uninterrupted service, not for short-term equipment
Environment: high temperature, high humidity, dust, coastal salt spray
Safety: liquid leakage directly causes high-voltage short circuits, failures and blackouts, requiring extremely high reliability
Maintenance: low-maintenance or maintenance-free design
VI. Brief Summary
Power liquid cooling plate is the "special heat dissipation base plate" for power electronic equipment.
Its core requirements can be summarized in three points: strong heat dissipation, no liquid leakage, and long service life.
Strong Heat Dissipation – Core: Low Thermal Resistance, High Efficiency, No Hotspots
Optimized flow channel design maximizes heat exchange area and minimizes thermal resistance, supporting continuous full-load cooling for high-power IGBT/SiC modules.
Excellent temperature uniformity eliminates local hotspots, preventing power derating or component failure.
Reasonable flow resistance matches the working conditions of the system water pump, ensuring stable heat dissipation efficiency under high flow rates.
No Liquid Leakage – Core: Reliable Sealing, Zero Leakage
High-strength welding processes such as vacuum brazing or friction stir welding are adopted to form an integrated, monolithic structure.
Continuous welds with no cold joints or pores deliver high pressure resistance and resist fatigue cracking during long-term operation.
100% helium mass spectrometer leak testing is performed before delivery, strictly controlling the leakage rate to prevent short circuits and burnout of power equipment caused by liquid leakage.
Long Service Life – Core: Longevity, High Reliability
Materials resist corrosion and scaling, adapting to industrial, power grid and automotive water quality environments.
High structural strength provides vibration and impact resistance, supporting uninterrupted long-term operation.
Excellent resistance to high and low temperature cycles and thermal fatigue, with a design life matching the 10–20 year long-term service of power equipment.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2006
Total Annual:
1,500,000-2,500,000
Employee Number:
138~168
Ecer Certification：
Verified Supplier
Uchi was established in 2006 in Dongguan, China.
After years of development, Uchi has become a large scale hi-tech enterprise that specialized in development and production of complete series of MOV,PTC, NTC series, PPTC series, Fuse(ALL TYPE),Resistor、integrated circuit 、 Capacitor, ... Uchi was established in 2006 in Dongguan, China.
After years of development, Uchi has become a large scale hi-tech enterprise that specialized in development and production of complete series of MOV,PTC, NTC series, PPTC series, Fuse(ALL TYPE),Resistor、integrated circuit 、 Capacitor, ...
