|
||
|
Quote:
|
|
|
||
|
|
||
|
Quote:
|
|
|
||
|
||
|
Quote:
for me this is intentional built that way , because look how easy it is to unlock. |
|
|
||
|
|
|
gonna add one of these and boost power to 1.2w hoping that the smaller one will dissipate the extra heat as i'm running it in a Nano Goblin and want to stay under 300g AUW.
Pulled from a scraped PC |
|
Last edited by AtTheCross; Nov 13, 2019 at 05:59 PM.
|
|
|
|
Please BoostFPV come back explain us the video feed hack cannot live without
Thanks !!!! |
|
|
|
|
|
Well the heat sink works! No thermal compound, just stuck it on with the residual 'sticky stuff' that was on the sink.
Pics were taken during the firmware update. 30°F difference |
|
Last edited by AtTheCross; Nov 14, 2019 at 09:50 PM.
|
|
||
|
Quote:
I first assumed they were pictures of the difference between having the heatsink on, and not on, but I can see the heatsink (in red) in both pictures, so I am missing something... |
|
|
||
|
|
|
the cross hair is pointing at the air unit and measuring the temp of the air unit, the other picture the cross hair is pointing at the heat sink and showing the temp of the heat sink
|
|
|
|
||
|
Quote:
But your test does not show how effective the heatsink is. The sides of the Air Unit are going to be cooler than the top of the unit (i.e. the surface that the heatsink is attached to), regardless of whether the heatsink is there or not. A real test of the effectiveness would be to take the temperature of the top of the AU before and after the addition of the heatsink. Of course, that would not be possible because the heatsink is stuck on there. Just sayin'... |
|
|
||
|
||
|
Quote:
If you will further notice the first thermal pic that show's 88.6°F you should be able to see that the small section not covered by the heat sink of AU is the SAME color (meaning temp) as the side, so I'm pretty sure it's showing how effective the heat sink is, and this is without thermal compound and it's just laying on the AU with some residue sticky stuff (not thermal compound) from when I pulled it off the IC from the computer. Just sayin' |
|
|
||
|
|
|
A heat sink like that, is not a heat pump. It is just a very thermally conductive metal, that allows heat to flow easily into it.
Unfortunately, with that shiny aluminum finish, it is not very, thermally emissive, so it does not radiate the heat well. What those images seem to say, is that the case of the Air unit, is more thermally emissive, than the heat sink you added. (assuming that it is equally, thermally conductive) I will wager that the section of the case that is in direct contact with your heat sink, is almost exactly the same temperature, as the heat sink above it. That heat sink, in still air, may be a hindrance to heat flow, instead of a help! Once air starts flowing, and the cooling changes from radiation, and convection to conduction, then the heat sink will really start working the way that type is designed to. There is a reason that PC heat sinks usually have a fan blowing on them. Paint that heat sink with a thin coat of flat black paint, and I bet the still air, temp will drop some. |
|
|
|
|
|
there was no fan blowing on this heatsink from the PC I pulled it from. It wasn't the main CPU heatsink.
also the heatsink is on the smooth side of the AU not the side with the built in heatsink (the raised ridges) I'll give the paint thing a try, maybe half painted and half not just for S and G's I agree that once in the air with airflow the heatsink will be a lot cooler. It was never super hot once I landed after flying 20 minutes at 700mw. But I wanted a little protection once I go to 1.2w Also once I apply the thermal compound I think the temp on the contact point of the case will also decrease. |
|
|
|
||
|
Quote:
Which i think that's doug.wagner is saying, too, when he says, "Once air starts flowing, and the cooling changes from radiation, and convection to conduction, then the heat sink will really start working the way that type is designed to." |
|
|
||
Thread Tools | |
Similar Threads | |||||
Category | Thread | Thread Starter | Forum | Replies | Last Post |
Discussion | how to enable Local Data Mode inspire 1 | Axefly | Multirotor Drone Talk | 1 | Sep 26, 2017 02:01 PM |
Mini-HowTo | How to power your FPV Goggles from a 5V Powerbank (ft. Quanum V2 Pro) | muteFPV | FPV Equipment | 0 | Jan 20, 2017 12:42 PM |
Help! | How to enable Walkera Devo 7 switches for use with CleanFlight Modes | MoyRC | Beginner Multirotor Drones | 1 | Sep 26, 2016 11:42 PM |
Help! | How to enable Walkera Devo 7 switches for use with CleanFlight Modes | MoyRC | Radios | 0 | Sep 26, 2016 10:13 AM |
Discussion | 900 mhz video tx - 500 mw vs 1000 mw range | kyle7119 | FPV Talk | 22 | May 02, 2016 05:39 AM |