[ausev] Heat Sink

[Sarah & Erik]

It would be better than nothing, but probably not much. The thermal
resistance in a joint (same idea as electrical resistance, except it
impedes the flow of heat instead of electricity) depends on many
things, but surface roughness and compression are the big players. If
you had the surfaces very smooth and compressed them well, and maybe
put some thermal grease between them, it would be a lot of work and
you still might not have a good heatsink.

Attaching some small stick-on heatsinks to a flat plate could be a
good budget route to upgrade a flat plate, but I don't know how much
they go for in surplus. You might quickly approach the price of the
"right" heatsink.

Erik

On 9/14/07, Joel Silverman <jm_silverman at yahoo.com> wrote:
> Would it work to make your own heat sink?  Take some
> pieces of aluminum sheet, some screws and nuts.  Use
> the nuts to space the aluminum plates along the screws
> so you have air space between the plates.
>
> Would that work?
>
> Joel
> --- Wieser Scott <Scott.Wieser at irs.gov> wrote:
>
> > Thanks Chris!  I'm gonna try and talk to Mike about
> > the one he has
> > offered 1st.
> >
> > Thank you,
> >
> > Scott Wieser
> > Office   512-460-8611
> > Mobile  512-293-3949
> >
> > -----Original Message-----
> > From: ausev-bounces at austinev.org
> > [mailto:ausev-bounces at austinev.org] On
> > Behalf Of Christopher Robison
> > Sent: Friday, September 14, 2007 5:56 PM
> > To: AustinEV News Announcements and General
> > Discussion
> > Subject: Re: [ausev] Heat Sink
> >
> > On Fri, 2007-09-14 at 17:42 -0500, Christopher
> > Robison wrote:
> > > I'm not sure at the moment where to source a more
> > substantial
> > heatsink,
> >
> >
> > While the shape isn't exactly ideal, this one has a
> > deep profile, and
> > the base is close to the correct dimensions for the
> > Curtis. See part
> > (HSK) S47C0003-01:
> >
> > http://www.surplussales.com/Heatsinks/HeatSink1.html
> >
> http://www.surplussales.com/Heatsinks/Closeups/hsk-s47c0003-01_L.html
> >
> > The flanges on top may provide a decent surface for
> > attaching fans.
> >
> >
> >
> >
> > --
> > Christopher Robison
> > chris at ohmbre.org
> > http://ohmbre.org          <-- 1999 Isuzu Hombre +
> > Z2K + Warp13!
> >
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>
>
>
>
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