So, I saw the thread talking about using belleville washers instead of springs for cell compression (NB: I prefer the springs for that as otherwise you'll need to stack a lot of washers to have a low enough k and high enough usable travel) and posting about busbars on another thread when I had the idea to merge the two.
Here's the idea: M6 terminals are somewhat fragile and you can easily strip their threads if you don't pay attention. Also, as with any screwed terminal connection, thermal cycles and metals malleability (and vibrations in a mobile application) have the tendency to loosen the connection over time.
So by replacing the standard washer by a belleville one between the nut and the busbar you give yourself more margin before stripping the threads (NB: it doesn't increase the max torque, but it gives you more travel to realise your mistake before it's too late) and you have something compliant to mitigate or even negate the causes of the connection getting loose over time.
Good idea? bad idea? other?
Here's the idea: M6 terminals are somewhat fragile and you can easily strip their threads if you don't pay attention. Also, as with any screwed terminal connection, thermal cycles and metals malleability (and vibrations in a mobile application) have the tendency to loosen the connection over time.
So by replacing the standard washer by a belleville one between the nut and the busbar you give yourself more margin before stripping the threads (NB: it doesn't increase the max torque, but it gives you more travel to realise your mistake before it's too late) and you have something compliant to mitigate or even negate the causes of the connection getting loose over time.
Good idea? bad idea? other?