3. Initial research
Client statement
Objective tree
Design matrix
Final design
4.
5.
6. We decided to make a charger comprised of a housing, holding a
fan blade in it which will get spun by a foot pump. The fan blade
will be direct drive to the motor mounted on to the bottom of
the housing.
The motor is connected to the circuit, and produces the voltage
we need to charge the phone through the output of a USB port.
7. Foot pump to push air through hose into housing
Air hose will push air towards fan blade
Fan blade is connected direct drive to the motor
Motor get spun at roughly 1,000 rpms each
Voltage goes through our circuit
USB port is the output to the phone
8. 1 Foot pump
1 BayBlade housing
1 3D printed fan blade
1 Motor
1 Acrylic sheet
4 Nylon spacers
4 Bolts
9. 6 Schottky diodes for rectifier
10 microFarad Capacitor
Micrel Inc MIC29150 Voltage regulator
USB output for charging
13. o Non-recurring Costs
• Tooling Costs- $5000
• Engineering Costs- $300
o Recurring Costs
• Material Costs- $3.00
• Machined Parts- $30
• Purchased Parts- $32.95
• Direct Labor- $60
o Prototype Cost- $25
o Unit Cost- $131
14. Place the unit on the ground
Connect air hose to the bellows pump
Plug phone charging cable into the USB port
Begin pumping the bellow
The air flow will spin the turbine and charge the phone
