Hello.
I've been working on a modular system for sometime now and I thought I would ask the wider audience their opinion for the best way to do this.
I will basically have a core unit from which a selection of smaller modules can be slid into place to achieve a different function. The modules can then slide on a curved slot to changed the modules angular position to suit the user. I'm still working on the mechanism to keep the modules in position.
At the moment the modules are 35x21x18mm wide and feature a small amount of electronics. Each module requires 5 pins from the core unit.
I'm currently thinking of using a AVX 00-9155-005-002-016 5 pin vertical battery connector on the module which connects to a ridged curved PCB. Thinking a PCB thickness of 0.4mm or 0.6mm might do but I need to verify if I can curve the PCB to about a 20mm radius.
Please see the attachments to get a idea of what I'm currently trying to do.
At the moment I'm wondering the following:
1) Should the battery connector be on the core unit and have a small bent PCB(or flex) on the module?
1a) or replace the flex PCB with curved strips on copper.
2) If I use flex boards I'm worried that the exposed pads ENIG finish will wear quite easily.
I hope someone can aid in my odd task.
Thank you for your time.