The metal shield is rounding all the charger. It's conected to earth, but has any more function? My guess it is a shield to avoid interferences. What do you think? I'm going to change a cable without earth, what about if I remove this shield? It does not have any heat dissipation function.
And what about the white adhesive that is everywhere? It's like sikaflex or another polymer adhesive, but is aplied with very little care. I don't think heat dissipation is happy with this.
Googling I found a guy reparing a HP laptop charger and I was very impressed because it looks a clone of Lenovo or vice versa
- Posts: 1945
- Joined: Mon May 28, 2012 5:49 am
- Location: Metro Manila, Philippines
2. If I'd have to guess, it's a damper for the inductors.
Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
- Senior Member
- Posts: 546
- Joined: Sun Jan 24, 2010 5:32 pm
- Location: USA : Illinois : Chicago
That white stuff (like caulk, and harder than silicone) might be placed to prevent a fault/leak/short across condensed moisture. Might, maybe; I am only guessing; I likely am wrong. I noticed it in several power supplies which include that encasing metal shield. I observe, it is usually applied onto circuit components which are tall or near to that metal case. I assume its purpose is electrical isolation/insulation, where air humidity condensate could form.
I opened a new subject talking about this
- Similar Topics
- Last post
Who is online
Users browsing this forum: No registered users and 6 guests