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Oliver Sedlacek
08/22/12 02:12
Read: 506 times

#188113 - Waterproof enclosures
Responding to: David Brown's previous message
I've worked on battery powered waterproof products and I we had good success with with a two shot moulded enclosure. The inner part was transparent polycarbonate and the outer part was self coloured silicone rubber. There was no rubber over the display, so you get a waterproof window with no joints to seal at no additional cost. By leaving holes in the hard polycarbonate, you can actuate push button switches through the flexible silicone rubber, again at no cost and with no joints to seal. The whole enclosure comprised of two parts, screwed together with am o-ring type seal between the parts. This solution is only cost effective though if your volume supports the tooling costs.

Sticking a knob through the enclosure would be undesirable, but do you need a knob? Our experiments showed that a capacitive touchscreen works through the polycarbonate.

I've also recently seen the performance of wireless power transfer systems, so I was wondering if a dock or stand would be acceptable.

List of 22 messages in thread
Designing a product for use in water      David Brown      08/21/12 17:39      
   Have you considered silicone coating?      Richard Erlacher      08/21/12 21:11      
   one link      Stefan KAnev      08/21/12 22:04      
   Waterproof enclosures      Oliver Sedlacek      08/22/12 02:12      
      Projective touch - or maybe waterproof tablet      Per Westermark      08/22/12 06:27      
         If that potentiometer wasn't a hard requirement      Erik Malund      08/22/12 08:00      
            more details      David Brown      08/22/12 10:54      
               You might want to look into that a bit further      Richard Erlacher      08/22/12 13:33      
                  buttons for up/down gives tactile feedback      Per Westermark      08/22/12 14:12      
                     nevertheless, a strobe wheel rather than a pot ...      Richard Erlacher      08/22/12 15:24      
                        more good ideas      David Brown      08/22/12 16:42      
   Go to the lowest practical voltage      Jim Granville      08/22/12 16:20      
      answers      David Brown      08/22/12 17:39      
         Electric shock and intrinsically safe      Oliver Sedlacek      08/23/12 02:11      
            Isolators      David Brown      08/23/12 19:13      
               a question and a reference      Erik Malund      08/24/12 07:05      
                  answers      David Brown      08/24/12 10:55      
                     tethered unit??      Erik Malund      08/24/12 12:12      
                        mounted display      David Brown      08/24/12 12:32      
                           have you considered a combination of battery and solar?      Richard Erlacher      08/24/12 14:56      
                              indoor pool      David Brown      08/27/12 10:24      
                           Wireless chargers      Oliver Sedlacek      08/27/12 15:30      

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