Beorn_Bear
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Cooling Raspberry Pi Zero

Thu Nov 12, 2020 10:32 pm

I am currently using a Raspberry Pi Zero as a Pi-Hole. When running "vcgencmd measure_temp" in the command line, it shows that the Raspberry Pi Zero Temp = 54.1C. I am using an Aluminium heat sink. I also have spare copper heat sinks. Would a Copper Heat Sink provide better cooling?!

dustnbone
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Re: Cooling Raspberry Pi Zero

Thu Nov 12, 2020 11:00 pm

Nothing wrong with 54C. You're still a very long way from having any kind of temperature related issues.

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DougieLawson
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Re: Cooling Raspberry Pi Zero

Thu Nov 12, 2020 11:06 pm

Beorn_Bear wrote:
Thu Nov 12, 2020 10:32 pm
I am currently using a Raspberry Pi Zero as a Pi-Hole. When running "vcgencmd measure_temp" in the command line, it shows that the Raspberry Pi Zero Temp = 54.1C. I am using an Aluminium heat sink. I also have spare copper heat sinks. Would a Copper Heat Sink provide better cooling?!
There's no need for a heatsink of any flavour on a Zero. Even if you run a flat out, non-yeilding loop you can't get a single core ARM6 to run hard enough to get to 85°.
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Imperf3kt
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Re: Cooling Raspberry Pi Zero

Fri Nov 13, 2020 12:35 am

Regarding copper, it won't do any better than aluminium.
Though it has a higher thermal conductivity, it has a lower specific heat capacity. A combination of the two would work marginally better.


But as others have said, a Pi Zero doesn't need a heatsink at all and would be a waste of raw materials.
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Re: Cooling Raspberry Pi Zero

Fri Nov 13, 2020 1:18 am

Imperf3kt wrote:
Fri Nov 13, 2020 12:35 am
Regarding copper, it won't do any better than aluminium.
Though it has a higher thermal conductivity, it has a lower specific heat capacity. A combination of the two would work marginally better.
Only true for same weight of heatsinks, for two dimensionally equal heatsinks copper will be better than aluminium both in the short term (heat soak) and in the long term.

LTolledo
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Re: Cooling Raspberry Pi Zero

Fri Nov 13, 2020 9:18 am

my versions...
RPiZW Aluminum heatsink-case view2.jpg
RPiZW Aluminum heatsink-case view2.jpg (165.76 KiB) Viewed 561 times
RPiZeroW-downHAT-DAC.jpg
RPiZeroW-downHAT-DAC.jpg (57.3 KiB) Viewed 561 times

and this one below has caused a very serious uproar :mrgreen:
RPiZW-WRcaseFAN.JPG
RPiZW-WRcaseFAN.JPG (95.91 KiB) Viewed 561 times

but hey... these are mine.... not theirs....
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AndrewPiEater
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Re: Cooling Raspberry Pi Zero

Fri Nov 13, 2020 9:52 am

No need for cooling on a Pi Zero in normal ambient temperatures.

I put one at the top of an antenna mast and the heat from direct sunlight in the summer did for it.

Beorn_Bear
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Re: Cooling Raspberry Pi Zero

Fri Nov 13, 2020 6:31 pm

Now there is a flirc case for the Raspberry PI zero. It might be a worthwhile option.

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scruss
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Re: Cooling Raspberry Pi Zero

Fri Nov 13, 2020 6:44 pm

Beorn_Bear wrote:
Fri Nov 13, 2020 6:31 pm
Now there is a flirc case for the Raspberry PI zero. It might be a worthwhile option.
If you want to waste your money, yeah. But Raspberry Pi Zeroes are almost impossible to overheat from processor load.
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echmain
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Re: Cooling Raspberry Pi Zero

Sat Nov 14, 2020 2:02 am

LTolledo wrote:
Fri Nov 13, 2020 9:18 am
my versions...
RPiZW Aluminum heatsink-case view2.jpg
Where did you get that aluminum case for the Zero? Looks very nice.

I tried a bunch of Google searches but couldn’t find it.

LTolledo
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Re: Cooling Raspberry Pi Zero

Sat Nov 14, 2020 3:35 am

echmain wrote:
Sat Nov 14, 2020 2:02 am
LTolledo wrote:
Fri Nov 13, 2020 9:18 am
my versions...
RPiZW Aluminum heatsink-case view2.jpg
Where did you get that aluminum case for the Zero? Looks very nice.

I tried a bunch of Google searches but couldn’t find it.
I got it from amazon about 2 years ago, got two versions of it (GPIO covered and GPIO exposed).
sad to say its no longer available.....
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echmain
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Re: Cooling Raspberry Pi Zero

Sat Nov 14, 2020 10:37 am

LTolledo wrote:
Sat Nov 14, 2020 3:35 am
echmain wrote:
Sat Nov 14, 2020 2:02 am
LTolledo wrote:
Fri Nov 13, 2020 9:18 am
my versions...
RPiZW Aluminum heatsink-case view2.jpg
Where did you get that aluminum case for the Zero? Looks very nice.

I tried a bunch of Google searches but couldn’t find it.
I got it from amazon about 2 years ago, got two versions of it (GPIO covered and GPIO exposed).
sad to say its no longer available.....
Ah well, thanks anyway. I snoozed, I losed.

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