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Modding Improved Cooling and Charging for GearVR

Designing a new inner/outer backplate and cooling/charging circuit for the Samsung Note4 Phone

dewayneDewayne
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Let's get something together in order to remove some of the Note4's limitations.

For now, let's say the project goals are to:

Improve cooling during GearVR use
Add the ability to charge the battery while the phone is mounted in GearVR
Keep additional weight to a minimum

Proposed parts so far:

3D Printed brass heat-sink - http://www.shapeways.com/materials/brass?li=nav
3D printed plastic inner backplate - http://www.shapeways.com/materials/strong-and-flexible-plastic
Female MicroUSB 2.0 ports - https://www.sparkfun.com/products/12035
Low profile fan: http://goo.gl/SdmHk3

Current needs:

A 3d scan/recreation of the current plastic inner-backplate, suitable for printing modified duplicates
A design for a new plastic inner-backplate that can both accept an ordinary rear phone cover, and a removable heat sink.
A design that would provide power to the phone and fan at the internal battery connector.



This is a community project so please leave comments and ideas

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Dewayne wrote 12/26/2014 at 04:51 • point

We need a source for these that does not have such a large minimum order: http://www.alibaba.com/product-detail/SMT-DIP-1-6mm-and-2_1450678571.html

  Are you sure? yes | no

Dewayne wrote 12/26/2014 at 04:26 • point

Since we're proposing cooling through the back of the PCB: https://books.google.co.jp/books?id=AUHqhqn7mRMC&pg=PA81&lpg=PA81&dq=heat+sink+touching+pcb&source=bl&ots=NDYtBV4sw8&sig=zlx7pEUYNfe9Y0Dmos4UB1VOs0I&hl=en&sa=X&ei=3-KcVKTRK-XVmgW49IKgBQ&redir_esc=y#v=onepage&q=heat%20sink%20touching%20pcb&f=false

  Are you sure? yes | no

Dewayne wrote 12/25/2014 at 10:39 • point

Good teardown images: http://www.gizmochina.com/2014/10/07/samsung-galaxy-note-4-tear-down/

  Are you sure? yes | no

Dewayne wrote 12/25/2014 at 10:33 • point

Possible fan: http://www.frozencpu.com/products/5572/fan5v-02/Evercool_30mm_X_7mm_5_Volt_Fan_-_EC3007M05CA.html?tl=g36c231s598#blank

  Are you sure? yes | no

PointyOintment wrote 12/24/2014 at 21:43 • point

Adafruit has female USB micro-B ports with a plastic shroud piece, and I think SparkFun has PCB-mount ones.

  Are you sure? yes | no

Dewayne wrote 12/24/2014 at 12:58 • point

The heatsink could possibly be printed from brass http://www.shapeways.com/materials/brass?li=nav

  Are you sure? yes | no

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