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[Discussion] [Tech class] Chapter 62 : All About Liquid Cooling System in Smartphones

2018-11-21 22:24:48
9969 114


Hello Mi Fans ,

Today we are going to discuss about liquid cooling technology which is seen mostly in the High-end Smartphone's with high configuration and gaming mobile phones seen now-a-days in the markets which has become an essential requirement.

Meaning :-
Liquid cooling is the reduction of heat in electronic and mechanical devices through exploiting the properties of liquids.

Modern smartphones  are equally configured with computer
Which is extremely powerful with higher CPU’S And GPU’S where latest processor and mother board is used. These high end smartphones required to cool down and maintained to avoid heat has become a very challenging . So , the innovative solutions brought down by the companies is liquid cooling technology system .

What is Liquid cooling technology :-
A liquid cooling system is a modern techniques which is essential to keep the temperatures down of processor's with the help of cooling system . The cooling system works on the bases of water as a source of cooling medium to avoid the heat realesed by the processor . It's a very costly solutions when it's compared with the traditional method like Air cooling system OR a thin double layer of graphite sheet is used to minimise the heat in xiaomi device's like Redmi note 5 & pro.

Latest  high end processor exhaust more heat which requires a perfect and efficient solution of cooling system has to be provided either liquid cooling system. OR Air cooling system is a must.
                                                                                
                                                                                
                                                                                
Liquid cooling system or water cooling system  works in the layers of carbon fibre which is above the processor and there is thin copper piece of pipe which is seen below the processor. Above this, there’s another type of unspecified thermal transfer material (we can assume it’s some type of silicone), and then the copper thermal heat pipe. Just above the pipe is a thermal spreader to keep the heat from concentrating in one place.
                                                                              
If you see in the picture , showing the features of the LiquidCool heatpipe, which connects the metal heatspreader fitted on the processor to the backbone of the phone to diffuse heat.

How Liquid cooling works in different Smartphone's ?The Liquid cooling technology helps to circulate the water through the small piece of copper pipe and a heat sink tank is synchronised with the processor which flows and circulates through the pipe and heat generated by the processor is transferred to the cooler liquid.
                                                                                
Some Smartphone companies developed a method of water cooling that uses a copper thermal heat pipe to disperse heat away from the CPU, especially as the chip works harder. There is a tiny bit of liquid in this tube—not enough to see if the tube is cut open.
A very little amount of water is stored in the pipeline even we cannot see the presence of water if it is cut or open . More presence of water in the tube can lead to devestating effect if the tube is  damaged leads to effect upon the mother board & processor completely.

The water cooling process works by condensation. As the processor heats up, the liquid essentially vaporizes, keeping the CPU cool. The vapor then travels to the opposite end of the of the heat pipe, where it condenses back into liquid when cooled off. This process, paired with a carbon fiber TIM (Thermal Interface Material) is a very effective method of cooling phone hardware.
1mm metal plate contains coolant and can be cut to fit any gadget.

                                                                                 
                                                                                
The Liquid first passed through the liquid line and travels through the Evaporator and thermal diffusion plate.
A loop heat pipe is a heat-transfer device that consists of an evaporator that absorbs heat from the heat source and a condenser that dissipates that heat away, with the two components connected by pipes into a loop. A working fluid is encapsulated inside this closed loop as a coolant. The heat from the heat source evaporates the coolant, and the energy that goes into evaporating the coolant is taken away from the heat source, lowering its temperature. It is based off of the same principle used when sprinkling water on pavement to reduce heat.

Evaporator is like a exchanger. It receives the heat from the processor and liquid comes to thermal diffusion plate. The Liquid releases the heat  which is absorbed by the processor.
Current smartphones use a similar system, called as  “water carbon cooling system” for more cooling power is used. It achieved this in two ways: by incorporating a wider thermal pipe and adding a layer of copper in between two thermal spreaders to transfer more heat.
                                                                              
The entire cooling system works in layers. Just above the processor, there’s a layer of carbon fiber (which is excellent and transferring heat) below a thin piece of copper. Above this, there’s another type of unspecified thermal transfer material (we can assume it’s some type of silicone), and then the copper thermal heat pipe. Just above the pipe is a thermal spreader to keep the heat from concentrating in one place. Every smartphones companies has the different techniques of liquid cooling technology .
                                                                                 
In some of the Smartphone's has the " exclusive GameCool system (which) features highly efficient 3D vapor-chamber cooling inside, enhanced with a copper heat spreader and carbon cooling pads on the circuit board for maximum cooling performance."

The vapour chamber wraps around the motherboard from the bottom. That indicates it function - it is a heat pipe. It contacts the copper heat spreader, which distributes the heat from the different components (due to the heat pipe, both from the top and bottom of the motherboard) around. The carbon cooling pad is a thermal interface, connecting the heat spreader to the metal frame. Some of the companies Offer's an extra component that actually just blows air onto the metal frame at the top of  this carbon cooling pad, thereby increasing the cooling greatly (effectively by just going from passive to active). For most phones, that wouldn't work - the heat doesn't go from the components to the metal frame

Improved in the performance :-
If the proper heating setup is done , then definitely we will see there is a increase in performance of the device . The Liquid system make the CPU cool and works better and efficiently other wise phone may give troubleshooting and effects on the performance as well as phone might be  switched off.

Conclusions :-
Xiaomi Research and Development team os really concentrating on a heating issue in their high-end devices. Finally, they have come over with the solution of  the cooling technology called Liquid cooling technology . Already Xiaomi have launched many Smartphone's with the liquid cooling technology And Achieved a huge sucess in the markets.

Share your thoughts and views regarding the post . Your feedback and comments are very important .

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2018-11-21 22:24:48
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Pro Bunny

Rs26 | from Redmi Note 4

#1

Looks like inside Laptop this method
2018-11-21 23:08:47

Advanced Bunny

Mssankar | from Redmi Note 5 Pro

#2

very very superb and interesting.
i didnt know these things before
2018-11-21 23:10:02

Master Bunny

1796056365 SSR | from Redmi Note 5

#3

nicely explained
2018-11-21 23:26:28

Pro Bunny

sandy2225 | from app

#4

Great information very nice
2018-11-21 23:40:18

Device team

Nidhin@mi | from Redmi Note 5

#5

Very well explained... Keep the good work sir.
2018-11-21 23:54:28

Pro Bunny

drrishi | from app

#6

too deep study...
very good.

can u add a thread abt camera, resolution, mega pixels, ois, eis etc. etc...
Plus how to use ur mobile camera in a smart way, which ever is present in ur device.
2018-11-22 00:42:59

Grandmaster Bunny

Solver13 | from Redmi Note 4

#7

Interesting!
2018-11-22 01:11:21

Advanced Bunny

AMUTHAN5172577395 | from Redmi Note 4

#8

why gaha Kiya ke aks
2018-11-22 01:22:22

MIUI Beta Tester

Asha@63. | from app

#9

Good Explained
2018-11-22 02:29:46

Semi Pro Bunny

GSandy | from Redmi Note 4

#10

Wow ....thanks for sharing
2018-11-22 02:44:42
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