identificationmotherboard
How to we name these components that we see on the motherboards of the MacBook Pro (either silvered or gold) when the bottom cover lid is removed, and that seem mounted on springs?
Ancillary, does someone know if their purpose to detect the opening of the cover lid, or to ensure some contact with the mass?
(N.B. The MacBook is still working when the lid has been removed.)
It's a very cheap and unreliable version of what's commonly named microswitch. It's unreliable because the two flimsy parts which make up the contacts are unprotected and, well, flimsy. I would suggest you replace it with a real microswitch like
The three solder contacts show that they're changeover contacts: one common, one normally open, and one normally closed.
I believe that is a 2-pin Molex "Mini-Fit Jr." nylon line plug
There are other, generic, manufacturers - but I'm providing a specific name brand as I don't see that any of the generic versions have a specific name. Searching for ATX style or EPS style may help.
Best Answer
Generically, spring-loaded contacts or pogo pins. Mill-max is one US-based supplier.
Their primary purpose is probably electrical shielding to reduce EMI and for EMC purposes. They probably contact a conductive paint or internal metal surface inside the housing.