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

Dimension	Length×Width×Thickness: < 1250×800×60mm
Superficial treatment	Wash, Black anodized, Nickel plating
	Chrome plating
Planeness	<0.05(100×100)
Roughness	<1.6μm
Connection Type	Vacuum brazing or argon arc welding
Coolant temperature (℃)	Minus 30℃ to minus 60℃
Coolant	Pure 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

Structure	Process	Feature	Photo
Drilling type	Bend 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 type	Milling groove or section bar slot broaching to embed the bended copper pipe into the slot by welding, pressing and pasting. CNC profile processing	Simple technology, low cost in volume production and poor performance
Assembling type	CNC or die-casting water chamber, body shape and cover. Seal by using the screw and seal ring or glue	Simple process, low cost, medium performance and low reliability
Friction welding/ Electron beam welding	Use 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 brazing	Process 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)
2	23.4	752	32.3
4	16.3	2375	22.8
6	13.5	4727	18.9
8	11.9	7709	16.6
10	10.8	11267	15.1
12	10.1	15363	14
14	9.5	19968	13.2
16	9.1	25058	12.5
18	8.7	30616	11.9
20	8.4	36624	11.5

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)
1602	27.1	386	37.8	682
3971	19	1252	27	1904
7272	15.8	2495	22.5	3735
11613	13.9	4069	19.8	6078
16874	12.6	5947	18	8877
22961	11.8	8109	16.7	12102
29819	11.1	10540	15.7	15729
37408	10.5	13227	14.9	19738
45696	10.1	16161	14.2	24115
54658	9.7	19332	13.6	28847

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.