Catamaran Cover Form Factor Concepting

Owned by Adrian Au
Last updated: Jul 09, 2020 by Renzo Villanoy
3 min read

Ownership

Form Factor DRI

Contributors

Project DRI

Form Factor DRI

Contributors

Project DRI

@Renzo Villanoy

@Name, @Name, @Name

@Daphne Lai

Research

Interesting research, images, links, recap of regulations, etc.

Mounting Solutions Composites Research

https://novelis.com/automotive/battery-enclosure/

Port Hatch

  • Include: USB, power input terminal, debug port

 

https://www.thomasnet.com/articles/hardware/types-of-latches/

Latch Type

Description

Advantages

Disadvantages

Latch Type

Description

Advantages

Disadvantages

Cam/Twist

 

  • consists of cam and base

  • actuated by rotating motion

  • ex. cabinet doors

  • can be flush with outer face

  • can be locked with keys

  • might be too complicated for the purpose

  • mounting might be difficult

Pull down/Toggle

 

  • pivoting levers and drawbars that reach into catches

  • ex. some containers

  • only 3 components

  • easy to secure

  • come in various sizes and materials

  • force is directed downwards

 

Push to Close

 

  • lock in place when closed

  • require trigger to open

  • spring-loaded

  • ex. cabinet doors

  • simple to secure and open

  • many components

  • mounting might be difficult

Slide/Swing

 

  • sliding pin and separate catch

  • ex. doors

  • easy to use

  • only 3 components

  • easy to mount

  • may not be secure enough

Latches

Latches

Quarter-turn cam lock

https://www.mcmaster.com/10335A75/

https://www.wixroyd.com/en/page/cam-latches-from-wixroyd

 

Mounting

Mounting Type

Description

Mounting Type

Description

Clickbond studs

 

3M VHB tape and adhesive sealant

 

Hexion past MGS 235/K

 

Seals

Seals

 

 

 

Sketching

Idea 1: Removable top lid for both battery and rear electronics

 

CAD Concepting

Before chassis adjustment:

Concept 1 (Rough large volume design):

Concept 2 (Design Review #1)https://docs.google.com/presentation/d/1mTEXTjnl6PG7Y2zsuLYrHUEBJpBKYKspS9YbM53Y5hI/edit#slide=id.p

Concept 3

File links or locations

Prototyping Materials

  • foam core board

Design Journal

Date

Activity

Next Steps

Date

Activity

Next Steps

13/06/2020

  • finished modelling rough volume for cover, creating gneral shape

  • interiors check-in meeting

 

14/06/2020

  • researched latch mechanisms to secure lid to rest of cover

  • select appropriate latch type

  • determine latch mounting

  • model cover details

  • get cad for rear electronics

20/06/2020

  • researched possible rubber seal types

  • initial front vent design

  • initial connection port design

  • determine latch mounting

  • determine chassis mounting

27/06/2020

  • found chassis mounting options

  • interiors check-in

  • model front vent

  • determine latch mounting

02/07/2020

  • Design Review #1

  • figure out flush latch system

  • decrease height of enclosure

  • redesign shape

  • figure out mounting system

  • remove bottom locating plates

  • make electronics removable

  • add support wall down length of battery modules

08/07/2020

  • Interiors Check-In

  • switched to quarter-turn cam latches

  • redesign outer enclosure

  • make new rear elec assembly