This is my DIY alternative of a solder fumes extractor and actually due the smart design of the fan is a three to one tool.
I am using it as:
1) Solder fumes extractor
2) Portable heat sink fan
3) Cooling assistance for Nimh chargers at fast charge.
The fan is a Thermaltake TT-8080T which now days is discontinued.
The base is from one Japanese desoldering pump which the manufacturer discontinued the support regarding spare parts and I throw it away.
There is two Li-ion batteries salvaged from a dead laptop, and I added to them a dedicated Li-ion protection controller.
And even added the option this fan to be powered other than the onboard batteries also with external DC power supply in case that I need 24/24 operation.
I did buy this amazing fan almost at the time that it got discontinued in 2010, it was new sealed and in a bargain price (eBay), my thought was to use it in a project which I did cancel it later on.
The benefits of a blower fan compared to a regular are the strict directional air flow, which brings in mind the saying: Aim and shoot.
There is no better fan design for sending air from a sideway direction over a heat sink or an electronic part which is somewhere in the center of one heavily populated PCB.
The fan by it self offers three speed control options, manual adjust, full speed, thermal sensor control.
I am using manually adjust or the thermal sensor when charging batteries by placing the sensor between two Nimh cells.
Thermaltake XB Pro ( A2215 )80x80x80mm
7V to 12V, Max 1A
RPM 2000 – 4000
Air pressure: 5.71 / 10.17mmH2O
Max. Air flow: 21.58CFM
You may build something similar by many ways, but the specific design is my very own one.
And is not patented yet