[DISCUSSION] Fans/Heatsinks/CPU Cooling Mods

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LattePanda
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Posts: 2173
Joined: Wed Jan 20, 2016 9:09 am

Fri Dec 15, 2017 9:48 am

Thanks for all ! Feel free to discuss. :D
Enjoy Tinkering with LattePanda ! :lol:

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LattePanda
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Joined: Wed Jan 20, 2016 9:09 am

Thu May 24, 2018 7:59 am

@andreysblada
Try to Google it , which will be more faster and convenient!
Enjoy Tinkering with LattePanda ! :lol:

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LattePanda
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Posts: 2173
Joined: Wed Jan 20, 2016 9:09 am

Fri Jun 08, 2018 3:03 am

Actually you can make one by yourself!
We can provide the Size Information if you need!
And really appreciate for any cool idea! :D
Enjoy Tinkering with LattePanda ! :lol:

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Watermanjim1
Posts: 2
Joined: Fri Jun 15, 2018 1:51 pm

Fri Jun 15, 2018 2:46 pm

Ok dumb question, what pins do you use to power your fan, I am using 2 of the pins on the 4 pin header but the fan doesn’t shut down when I power off, is there 2 pins that powers off with the motherboard so you don’t have to unplug the unit ? Ps please give a good location to use as I’m an old guy with 63 year old eyes. Thanks Watermanjim1

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LattePanda
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Thu Jun 21, 2018 3:22 am

We are also using the 2 of the pins on the 4 pin header.
I'm afraid that there is no such pin can meet your demands. :cry:
Enjoy Tinkering with LattePanda ! :lol:

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fender90
Posts: 6
Joined: Tue Apr 04, 2017 2:14 pm

Fri Jun 29, 2018 1:43 pm

HI there!

I finally joined the LattePanda community.
I got a 4/64gb version of the board.
First thing I noticed that the board gets very hot when watching videos or doing any other CPU demanding stuff.
However I didn't find any good heatsink for effective passive cooling, so I decided to design my own.

I created a prototype design
LP heatsink.zip
(91.95 KiB) Downloaded 7 times
As you can see the heatsink should be the same size as the LP board and have mounting holes located on the same places as the board, so it would be possible to secure the LP and the heatsink to a diy base or case using screws or longer standoffs.
heatsink1.png
heatsink1.png (42.22 KiB) Viewed 1208 times

The heatsink should have fairly large fins for effective heat dissipation.
heatsink2.png
heatsink2.png (31.28 KiB) Viewed 1208 times
The material in the central part of the heatsink bottom should be routed out leaving only contact points for CPU and other chips. The mounting holes have something similar to legs, which should provide airflow and This will provide airflow and ensure there is no contact between the heatsink and the contact points on the board.
The heatsink should be placed on the CPU directly using thermal adhesive or thermal conductive tape.
heatsink3.png
heatsink3.png (25.3 KiB) Viewed 1208 times

Top view of the heatsink
heatsink4.png
heatsink4.png (16.52 KiB) Viewed 1208 times

Another View
heatsink5.png
heatsink5.png (43.3 KiB) Viewed 1208 times



You can find a ZIP file with STL and OBJ files in the attachments.

Unfortunately I'm not a professional heatsink designer so I don't know how to calculate the correct dimensions of the fins on the heatsink so it would be as efficient as possible.

If there are any people here who know how to it I can update the design using correct dimensions and share the files with you so everyone could make one using a CNC machine


Thanks!

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ED209
Posts: 210
Joined: Tue Apr 19, 2016 3:31 pm

Tue Jul 03, 2018 2:36 pm

@fender90, this is sooooo... coool... I'm not good at mechanical design. So how can I build my own heatsink like you've shared your design file from local vendor. Is there any note for that!!!!!?

Appreciate for your great contribution.

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fender90
Posts: 6
Joined: Tue Apr 04, 2017 2:14 pm

Tue Jul 03, 2018 3:54 pm

ED209 wrote:
Tue Jul 03, 2018 2:36 pm
@fender90, this is sooooo... coool... I'm not good at mechanical design. So how can I build my own heatsink like you've shared your design file from local vendor. Is there any note for that!!!!!?

Appreciate for your great contribution.
This is just a prototype design. I didn't to much calculations on the fins size and distance from each other. Usually when a heatsink is design it should have exact proportions based on the power usage, the temperature, average environment temperature, heatsink material, e,t,c. So Im not sure about the efficiency of the heatsink from my design.If anyone who knows mechanical design could provide me with the exact numbers I would update the design and upload the new file.

Based on the file it should be possible to order this heatsink from a shop with CNC router.

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ED209
Posts: 210
Joined: Tue Apr 19, 2016 3:31 pm

Mon Jul 16, 2018 3:19 am

fender90 wrote:
Tue Jul 03, 2018 3:54 pm
ED209 wrote:
Tue Jul 03, 2018 2:36 pm
@fender90, this is sooooo... coool... I'm not good at mechanical design. So how can I build my own heatsink like you've shared your design file from local vendor. Is there any note for that!!!!!?

Appreciate for your great contribution.
This is just a prototype design. I didn't to much calculations on the fins size and distance from each other. Usually when a heatsink is design it should have exact proportions based on the power usage, the temperature, average environment temperature, heatsink material, e,t,c. So Im not sure about the efficiency of the heatsink from my design.If anyone who knows mechanical design could provide me with the exact numbers I would update the design and upload the new file.

Based on the file it should be possible to order this heatsink from a shop with CNC router.
Thanks for your sharing. Will you make a sample to test?

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Pectabyte
Posts: 1
Joined: Thu Aug 09, 2018 2:40 am

Thu Aug 09, 2018 2:43 am

Does it matter which side of the board you mount the heatsink/fan too?

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