Additional cooling DEYE 20kW - PWM added

Additional cooling for DEYE 20kW LP. I had to divide the model into several parts due to its size. It is a prototype without speed control for now, then a PWM controller from Aliexpress will be installed later (search for "EGBO DC12V 3A 4 Wire PWM Fan Temperature Control"). I recommend using an external power supply and not the RSD output from the inverter. For now, the fans are running at 100% speed. I used a Noctua NF-P14s redux-1500 PWM, but any 14cm fan should fit.

I divided the pins for connection into longitudinal halves for easier printing, you need to connect 2 together to create one round pin. You need to print 24 half pins for the entire model.

If you want to edit, you can find the model in the public section on ONSHAPE (Cooler for Deye 20K Inverter).

EDIT: Finally, I added PWM fan speed control. I modified the models. Download the modified side part according to your needs. If you have already printed the model before I released this update, download the template and cut out the holes. Pay attention to the correct orientation of the template. To hold the PCB in place, print 2x separators and just place them on the PCB. One side will touch the PCB and the other side of the entire cooler body. I used 2 wood screws with a diameter of 2.5mm to attach the PWM housing.

Connect the cable from only one fan to the controller connector (yellow cable marked S/PG on the speed controller). Connect all other cables like +, -, PWM to the PWM controller. I tinned the cables and put them in shrink tubing. Attaching the temperature sensor is a bit tricky. I used thick and strong double-sided tape for this.

Find some video tutorials on Youtube to set the controller itself. L-temp 33 degrees Celsius and H-temp 43 degrees Celsius have worked for me so far.