|HEAT PIPE COOLING
Although heat pipes have
been known in their basical working principles since 19th century, it is only
from the sixties that they are extensively used in several industrial fields.
B.T.M. is today able to propose a wide range of heat pipe coolers, especially intended for
high power electronics components.
Thanks to their relatively simple structure and improved thermal characteristics,
heat pipe coolers show substantial gain in weight and size reduction. In addition,
they are totally maintenance-free with a proven operating reliability in eccess 30 years.
Heat pipe coolers can be designed and manufactured with an electrical insulation up to 12
kV, while the two parts of the thermal circuit, respectively the condensing and
evaporating sections, can be phisycally separated to avoid hazardous contacts and
The versatility of these systems allows a great freedom in designing customized thermal
||A stack of 7,5 kV insulated
heat pipe coolers (with AI²O³ insulators), designed for natural
air cooling of a pair of thyristors for on-board equipments in a subway
Light construction with aluminum evaporator and fins.
||A customized heat
pipe unit, especially developed for the cooling, in natural air, of a pair
of 130x140 mm IGBT (Eupec and Mitsubishi standard cases), for a total power
of 1kW, to be used on on-board equipments in a subway train.
Provided with AI²O³ insulators (7,5 kV insulation).
A stack of non
insulated heat pipe sinks, designed to cool a pair of thyristors with forced
ventilation, mounted with a special clamping equipment manufactured by
The equipment is intended for use in conjunction with an AC mill drive