Several weeks ago, we posted a review video of the OnePlus 45W liquid cooler.
This is the most powerful phone cooler we’ve ever seen so far.
So, let’s take it apart today to see how it works to keep your phone cooler.
The packaging adopts OnePlus red.
And the logo is in the upper left corner.
It can be divided into two parts connected by a red flat cable.
Here is the box-shaped cooling pump.
Those holes on the back can facilitate heat dissipation.
You can press the button at the top to control output power.
The round LED light can indicate the current working status.
And the LED lights on the back show the output power.
The smartphone clamp is inside the box.
It adopts a Mecha design.
Tear off the protective film.
It’s suitable for mobile phones with a width between 70-86mm (2.76-3.39 inches).
You can also click the upper right corner to check the size of this cooler.
Next, let’s go ahead and take it apart.
The first step is to remove the fixing screws at the bottom.
There’s a small input module connected by a flat cable.
The USB-C connector, LED lights, and foam are on the other side.
After removing the outer case, we can see the big fan and several water pipes.
The red flat cable we just mentioned contains water pipes and other cables.
And these other cables connect to the main PCB, which controls the cooler.
Take a closer look at the front and back.
Let’s introduce all components of this PCBA module.
The protocol chip is from Southchip.
It supports USB PD and dual DPDM interfaces,
providing cost-effective solutions for many applications.
The synchronous buck-boost converter is also from Southchip.
It integrates four MOSFETs to provide high power efficiency and stable voltage regulation.
The 3.3μH alloy inductor is used to power the water pump with the converter.
The synchronous buck controller is also from Southchip.
It can be used as a dual or single output.
And the input voltage can be from 4.6V to 36V.
The buck MOSFET is from HI-SEMICON and adopts PDFN3 x 3 package.
30V, 7.5mΩ.
This 4.7μH alloy inductor works with synchronous buck controller to power the TEC cold plate.
The synchronous buck converter is from Silergy.
It integrates MOSFET for the fast transient response.
The Bluetooth SOC is from Jieli.
It also has an external 24.000MHz crystal oscillator.
Here’s the Bluetooth Antenna.
After introducing this PCBA module, let’s remove the rest of the screws.
This is the round LED light, with an MCU to control it.
The control button is on a separate small PCB.
There’re 12 RGB LED lights on the front.
The cooling fan is from COMDELL.
The size is 8020.
5V 0.4A.
Here is the radiator of the water cooling system.
Take out the water pump.
It’s a DC submersible pump, from Jiayaocheng.
The rated power is 12V 6W.
The entire pump is wrapped with foam for buffering.
Then, use the spudger to pry along the gap to take apart the phone clamp.
It’s coated with pink thermal paste for better heat dissipation performance.
Four springs on two sides can fix the phone tightly.
The water pipe is fixed with glue.
Continue to remove fixing screws.
And remove the back cover.
There’s a small PCB on the back.
It’s equipped with an 8-bit MCU from Chipsea.
It integrates 2K 16-bit memory and 12-bit high-performance ADC.
Separate the TEC cold plate and water cooling block.
They’re also covered with pink thermal paste.
There is an aluminum plate inside the water cooling block.
We also take apart the cold plate.
There are many small square blocks inside,
called P-N junctions.
It can cool on one side and heat on the other side,
and conduct the heat from your phone to the water cooling block.
Well, that’s all components of this 45W phone cooler from OnePlus.
To achieve a continuous and stable cooling effect for your phone,
this cooler is a new attempt by the phone manufacturer.
It combines water cooling and thermoelectric cooling.
The TEC cold plate can lower the phone’s temperature,
and the water cooling can quickly dissipate the heat generated by TEC cold plate.
Only in this way can a better cooling effect be achieved on a limited contact surface.
OK. That’s all for today’s video.
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See you in the next video. Bye.