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Type of components
to be cooled: Press-pack type: Diode, GTO, Thyristor,
IGBT, IGCT
Applications:
Power conversion, traction drives, HVDC, medical
For several years now Ferraz Shawmut Thermal Management has
been innovating with water boxes to meet the changing, every
more demanding needs of the market.
Calistor® uses a patented technology developed for applications
with press-pack type components that require higher thermal
performances than those of the typical water boxes on the
market.
Today Ferraz Shawmut Thermal Management can provide you with
a complete range of water box technology combining high performance
with low cost, based on the tight control of vacuum brazing
that 15 years' experience has brought.
General presentation
of product technologies:
Calistor® comes in three different series that cover every need:
G, U and M.
- G series: a stack of pre-cut colaminated aluminum
grids and two enclosing covers form the body of the
Calistor®. It can accommodate clamped electronic components
up to 100 mm in diameter.
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- U series: an aluminum block with a cooling circuit
machined on each side and two enclosing covers form
the body of the Calistor®. It can cool any clamped
electronic component on the market.
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- M series: an assembly of an aluminum block, pre-cut
colaminated aluminum grids, and two enclosing covers
forms the body of the Calistor®. It can accommodate
clamped electronic components up to 100 mm in diameter.
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The
design of the cooling circuit is optimized in each case
to achieve the best possible compromise between thermal
performance and load losses. |
The advantages of a
vacuum brazed water box:
With vacuum brazing you get a water box in a single, solid
piece with no additional contact resistances. It guarantees
high internal pressure withstand - of the order of 15 bars
- and eliminates any risk of leakage or corrosion over time,
since no flux that would contaminate the brazing is used.
It also enables you to take assembly a step further, as electrical
and hydro-connections can be mounted at the same time, giving
the Calistor® unequaled leaktightness, high pressure withstand,
and perfect electrical continuity that last!
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