What is a Vapor Chamber?
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- Опубліковано 6 лют 2025
- A vapor chamber is a vacuum sealed heat spreader with a wick structure lining its inside walls. The wick is saturated with a working fluid and when heat is applied, the fluid at that location immediately vaporizes and the vapor rushes to fill the vacuum. When the vapor meets a cooler wall surface it condenses, releasing its latent heat. Learn more about how they function and their role in the thermal management of electronics with this video.
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Thanks a lot ATS! I've been looking for a valid explanation for a while! So it was a planar heat pipe this whole time 🤔
Glad you found it helpful!
A very good heat sink production expert! perfect
Thanks Winshare, its acdtually a vapor chamber, not a heat sink. We do have an explainer video on what a heat sink is though, you can find that here: ua-cam.com/video/qO6AuFc72AA/v-deo.html
0:33 Why would you say a heat-pipe transfers heat in only 1 direction?
It looks like a "vapour chamber" is just a marketing term for what is literally just a very wide & thin heat pipe, and thus both have the same capabilities. 🤷♀
0:58 The inner "column structures" are for transporting condensate between upper and lower surfaces. There is no way that capillary action can efficiently carry fluid all the way to the edges and back. The hundreds of columns are made of sintered -copper- metal powder, providing short fluid paths.
The maximum thermal capacity is often limited by the quantity/density of sintered columns. Heat transport rate is dependent on carrying fluid from the colder plate back to the hotter plate.
Wouldn't that suggest that heat-pipes become drastically less efficient - the longer they are? But when looking at designs incorporating heat-pipes, that doesn't seem to be the case. 🤔
Good explaination!
Now that is such a C00L video ! :-D
get it ? because it's a video of vapor chamber cooling... :-) - ok, ok, I'll show myself out...
Haha! Good one SeaJay!
Nice video!
What comes to mind is, what is the best solution for a CPU PC ? I would think a bigger vapor chamber would be better to dissipate the heat than just pipes?
Your right Rene, depending on how hot that chip is, a vapor chamber attached to a heat sink may be a good option. But a solid material may work just as well. We talk about this topic at length with the reasons why on our article here: www.qats.com/cms/2017/07/26/vapor-chambers-solid-material-base-high-power-devices/
A heat pipe would work too BUT it has been attached to an evaporator and condenser to make enough surface contact with the hot device. You can learn about heat pipes and how they can be used on our video here: ua-cam.com/video/eKrdJpDSowY/v-deo.html
Typically, heat pipes are packed tightly side-by-side. And the best coolers have pipes emerge in both directions from the block. However, some CPU chip carriers may have hot spots that only one heat pipe touches. This is when an excellent heat spreader like a Vapor Chamber will help spread the thermal load among all heat pipes.
u also makes Vapor chamber in smartphone ?
xiaomi 11i has one
Hi Abhi - Our vapor chamberrs would also fit into small, mobile form factors such as cell phones, yes.
would gravitation affect vapor chamber? like on a gpu?
Is the fluids will finish some day??
No, the vapor chamber is sealed and the fluid permanently enclosed.
can we buy vapor chamber from you and apply to our laptops?
Hello, when you say that one works only in one direction while the vapor chambers does it in both, does it mean that it acts like a heat diode ? Does it work also to transmit cold ?
What that means is that the heat transfer is in one direction, so upward from the surface of the vapor chamber that is in closest proximity to the heat source. It is not electronic, it is based on thermodynamics where the liquid in the vapor chamber is turned into a gas from the heat, then condenses to recirculate back to the base.
You can also learn more about this tech with our white paper "Vapor Chambers and Their Use in Thermal Management" (this is a pdf download) www.qats.com/Qpedia-Article/Qpedia_Sep07_The_use_of_Vapor_Chambers_and_their_use_in_thermal_management
@@heatsinks Thanks ! When i was talking about "diode", i meant it analogicly, I could have say "heat valve"
@@heatsinks Can it work in a non flat disposition, like on an inclined roof ?
Heat pipes conduct heat along their length. Approximately one dimensional heat transport.
Vapor chambers spread heat in two dimensions over the entire rectangle.
These are not thermal diodes because the design carries heat in either dirction, but always from hotter to cooler.
You can find thermal diodes in the Alaskan Pipeline ground supports.
@@imconsequetau5275 Wow nice ! I tought they were also caloducs... What is the name of this tech ?
You guys gonna supply to apple?????
They say the iPhone 17 will have it
3days ago for @@davonrawls3917
Still not happening yet lol
@@captainlcm we would expect that for iphone 69
😮