Yes it is just a fan :)
I wanted to make an accesory for my small fiat 126 car. I've some solar modules, some scrap plywood and wood box decorations lying around so it turned out to be a solar powered window fan.
Step 1: Building the Chassis
I've a small piece of scrap plywood around which I'd found and picked up literally from a garbage box.
I'm adding instructions onto the pictures to help anyone who wants to build a similar thing
I've used brass looking edge protectors from ebay, you may find similar ones by clicking the link below
Step 2: Building the Chassis
I've added a fourth plywood piece to support the motor and cover the interior which will house the cables etc
Step 3: Adding Corner Decorations
I've bought these brass decorations from ebay and used them as corner protectors.
ebay is full of those kind of things
here is a sample selected randomly
drill before inserting the nails.
Step 4: Adding Some Gears
I'd bought many types of gears from ebay. They look like made up off brass and they are mostly decorative.
here are some samples
Step 5: Assembling the Dc Motor
The DC motor is a CD/DVD driver motor with a long life span.
I've assembled it as it looks at the photos. The two screws squeeze the motor from both sides
fixing it into its place. I've also glued it a bit by epoxy.
Step 6: Suction Cup
Bought this suction cup from ebay. it will fix the fan into the front windscreen glass.
there are more complex and expensive ones and also cheaper and simpler.
choose one as you like and as it fits to your design.
here is a sample
Step 7: Electrical Connections
the solar panels generate 100ma short circuit current each. one solar module is in fact enough to run the DC motor under full sunlight. but I wanted it to be running in lower light conditions so used 2 modules in parallel.
mind the direction of the connection to the dc motor to enable it to turn in the direction to push air towards you.
Step 8: Finished Thing
Here is the finished fan.
Step 9: Fan in Its Place :D
I've liked my solar fan so much, I've made 2-3 more. it is a lot of fun.
Step 10: Made One More :D
There are two more,
will add their photos later :D
Runner Up in the
Solar Contest 2016