Fusebox
Project Overview
This project entails the creation of a Fusebox for the fuse board. The mini enclosure will be mounted to the Left side of the roll cage. It will have a 20 pin MX150 receptable and will contain 14 LV outputs (xt30 connectors) with their respective fuses. The enclosure is more akin to a protective covering for the board and will be 3D printed.
Project Owners: @Brock Czarnecki
Resources:
https://github.com/lhr-solar/PS-LVDistributionPCB/tree/v2_XT30/docs Step File (outdated)
Electrical Counterpart
Power Systems -> LV Subsystem
Fuse Board Project
Electrical POCs:
@Frank Li - Electrical Lead
@Parthiv Shah - Fuse Board Project Owner
@Ravi Shah - Power Systems Lead
@Surabhi Karighattam - LV Sublead
Project Requirements
4130 Tab Mounting
Since this is will be light, mount tabs built into the 3d printed base of the enclosure that can be epoxied to the frame might also be doable. Zipties have also worked incredibly well in the past for similar small components . ask @Parthiv Shah if u want to know the best way for this
Gasket Seal
Board Accessibility
Place sealant around this edge instead of gasket
Sealant will need to be high temp rated
The panel mount needs to be sandwiched unlike our traditional panel mounts which get pushed in
Most likely an ASA enclosure due to temp
Subtasks
Design
Enclosure
Mounting
Test Prints
Manufacture and Integration
Documentation
The enclosure contains 6 heat set inserts
5 to hold the pcb in place and four of those will be shared with the lid to also hold the lid in place
made of ASA.
1 for the slider
The enclosure will be printed in two parts
have a total print time of 3 hours (to be updated)
use 90.7g of filament (to be updated)
A Lip will be used to form a seal between the lid and base.
A sealant will be used to form a seal between the pcb and the lid.
The dimensions of the Fusebox will be (LxWxH mm) 160x79.34x35 (using old dimensions)
Design Choices:
The fusebox was designed in two parts to accommodate the 20 pin MX150 receptable that cant be slid in like other receptables.
to fasten box to the roll cage it has a slider built into the back so with just one screw it can be detached and slid of of the mount.
a cavity is designed to go below where to pcb is to aid in keeping the enclouser light.
the lid as pc share heat inserts to keep cost down, making the design smaller and for simpiscity.
the wall tappers out tp the top of the base to form the rim that aligns with the lid.
each screw hole has a slight chamfer to make screwing in the screws easier.
The slider channel also has a slight chamfer to aid getting the slider in the rails.
Change Log:
Fuse board changed from 12 to 14 outputs and fuses