Question What is the name of this type of heat sink mount that's soldered on with 4 pins ?

[reaper89971]

https://imgur.com/gxChvC9

View: https://imgur.com/gxChvC9


I found these strange heat sinks on smart tvs and was wondering what type of heat sink they are.

They have 4 pins that solder into the board. What is the name of that type of mounting.

I want to find a better replacement but i don't know what type of heat sink this is?

Or what is the name of that type of heat sink mounting system?

https://imgur.com/yTMa2Ax

View: https://imgur.com/yTMa2Ax

 

[Aeacus]

What is the name of that type of mounting.

Unsure if it even has dedicated name, since everything that is soldered on, isn't meant to be replaced.

But in electronics world (namely CPUs), closest to what you have, can be called BGA (ball grid array).
BGA CPUs/chips are soldered directly to PCB, just like your heat spreader is.
Further reading: https://en.wikipedia.org/wiki/Ball_grid_array

 

[reaper89971]

Unsure if it even has dedicated name, since everything that is soldered on, isn't meant to be replaced.

But in electronics world (namely CPUs), closest to what you have, can be called BGA (ball grid array).
BGA CPUs/chips are soldered directly to PCB, just like your heat spreader is.
Further reading: https://en.wikipedia.org/wiki/Ball_grid_array

Thanks for your reply
That is a bummer that there isn't a name for that type of heat sink.

I was hoping something better were out there i could replace it with.

In my opinion its not a very good heat sink.

So i took a regular heat sink and thermal glued it to there heat sink essentially making a double heat sink or a bigger heat sink. I also replaced the thermal paste with Noctua Thermal paste. I Cut a hole in the back of the TV and added a fan as well.

There is a power upgrade switch or plug on the board that produces 12volts, Im going to try to run the fan off that. This is A ACER smart tv from India.

I recapped the motherboard with LOW ESR capacitors and added a emi filter plug. Hoping to make this TV last alot longer and run more efficient.

 

[RAIDGoblin]

So i took a regular heat sink and thermal glued it to there heat sink essentially making a double heat sink or a bigger heat sink. I also replaced the thermal paste with Noctua Thermal paste. I Cut a hole in the back of the TV and added a fan as well.

There is a power upgrade switch or plug on the board that produces 12volts, Im going to try to run the fan off that. This is A ACER smart tv from India.

probably no specific replacement you can find, those things are usually made and designed for a specific PCB, but in my experience with music equipment replacing thermal compound with high end compound designed for PC's, like you have done, can yield very good results, these things are built with "heat sink compound", like what goes between a power transistor and a heat spreader, those compounds are very very low quality

this sort of thing is what's normally used on a general electronics production line:
https://uk.rs-online.com/web/p/thermal-grease/0554311?gb=s
several years ago I built a PC up with this just to see how bad it really was, I had a CPU that with arctic paste idled at 35-40, instead idled at 55-60, it was insanely bad, running 20 degrees hotter

other than the improvement you'll already have from improving the compound and air flow, you can get stuff like this that you might be able to stick on top of the soldered heat spreader you have:
https://www.scan.co.uk/products/xcl...eed_clicks&utm_content=surfaces_across_google

I recapped the motherboard with LOW ESR capacitors and added a emi filter plug. Hoping to make this TV last alot longer and run more efficient.

consumer electronics is cheap and designed to live only a few years these days, seeing if you can improve that sounds like a great electronics project, good luck with it