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Water Cooled Heat Sink

The power components such as IGBT, GTO, etc., are employed in this water
cooled heat sink which is a type of highly efficient radiator. It is
used for controlling the temperature of the power module so that the
temperature under the working environment would not exceed the highest
temperature specified by the regulation and standard. The calculation of
the maximum permissible temperature is based on the finite element
thermal analysis and the working condition analysis of the components of
this water cooled heat sink. Besides, the calculation should be in
conformity with the requirements for the reliability and the service
environment of this water cooled heat sink. In this way, the safety and
reliable, steady operation of the power module as well as a longer
service life of the equipment can be guaranteed.

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Description

The power components such as IGBT, GTO, etc., are employed in this water
cooled heat sink which is a type of highly efficient radiator. It is
used for controlling the temperature of the power module so that the
temperature under the working environment would not exceed the highest
temperature specified by the regulation and standard. The calculation of
the maximum permissible temperature is based on the finite element
thermal analysis and the working condition analysis of the components of
this water cooled heat sink. Besides, the calculation should be in
conformity with the requirements for the reliability and the service
environment of this water cooled heat sink. In this way, the safety and
reliable, steady operation of the power module as well as a longer
service life of the equipment can be guaranteed.




Product Profile
The power components such as IGBT, GTO, etc., are employed in this water cooled heat sink which is a type of highly efficient radiator. It is used for controlling the temperature of the power module so that the temperature under the working environment would not exceed the highest temperature specified by the regulation and standard. The calculation of the maximum permissible temperature is based on the finite element thermal analysis and the working condition analysis of the components of this water cooled heat sink. Besides, the calculation should be in conformity with the requirements for the reliability and the service environment of this water cooled heat sink. In this way, the safety and reliable, steady operation of the power module as well as a longer service life of the equipment can be guaranteed.

Technical Parameter

DimensionLength×Width×Thickness: < 1250×800×60mm
Superficial treatmentWash, Black anodized, Nickel plating
Chrome plating
Planeness<0.05(100×100)
Roughness<1.6μm
Connection TypeVacuum brazing or argon arc welding
Coolant temperature (℃)Minus 30℃ to minus 60℃
CoolantPure water or the mixed liquid of water and glycol
Flow (LPM)<80L/min
Surface temperature rise (℃)<30℃
Max. working pressure (kPa)0.6Mpa-3.0MPa
Calorific value<30kW
Thermal resistance<2℃/kw (depends on the heat source distribution)

Common Processing Technologies and Classification

StructureProcessFeaturePhoto
Drilling typeBend the copper pipe or stainless steel pipe,
embed the water pipe
CNC profile processing
Simple process, low cost in volume production and poor performance
Pressure tube typeMilling groove or section bar slot broaching to embed the bended copper pipe into the slot by welding, pressing and pasting. CNC profile processingSimple technology, low cost in volume production and poor performance
Assembling typeCNC or die-casting water chamber, body shape and cover. Seal by using the screw and seal ring or glueSimple process, low cost, medium performance and low reliability
Friction welding/ Electron beam weldingUse the CNC to process the water chamber and cover. Conduct the seal welding by the friction welding or electron beam welding. CNC process the finished products.Relatively complicated process, flexible structure and good performance, high reliability and Relatively high cost
Vacuum brazingProcess the water chamber by using CNC or other ways. 
Conduct the face seal via the vacuum brazing.
Process the finished products by way of CNC.
complicated process, flexible structure, best performance,
high reliability and the 
highest cost

LCP Properties & Parameters of FZ450R12ME3 
Liquid cooling plate is adaptable for all thermal devices with the size of 62mm×122mm. The ΔT of LCP = thermal resistance × heat dissipation power.

Fin A (3mm in height)

Pure Water(pure water)50% pure water +50% ethylene glycol
Flow
rate, L/min
Heat Resistance 
(R,℃/kw)
Pressure Drop
(ΔP, Pa)
Heat Resistance
(R,℃/kw)
223.475232.3
416.3237522.8
613.5472718.9
811.9770916.6
1010.81126715.1
1210.11536314
149.51996813.2
169.12505812.5
188.73061611.9
208.43662411.5
Fin B (5mm in height)

pure water
Pure water+50% glycol
Pressure Drop 
(ΔP,Pa)
Heat Resistance
(R,℃/kw)
Pressure Drop
(ΔP,Pa)
Heat Resistance
(R,℃/kw)
Pressure Drop
(ΔP,Pa)
160227.138637.8682
3971191252271904
727215.8249522.53735
1161313.9406919.86078
1687412.65947188877
2296111.8810916.712102
2981911.11054015.715729
3740810.51322714.919738
4569610.11616114.224115
546589.71933213.628847

Simulation Diagram
Pressure distribution pattern
 

Surface temperature chart

Range of Applications
1. Transportation: Electrical locomotive, railway, electric drive vessels, electric cars and so on. 
2. Smart grid UHVDC, VSC-HVDC and so on. 
3. New energy, wind power converters, photovoltaic power converters and so on. 
4. Other industries such as frequency converter, signal processing, UPS, medical appliance, laser and so on.