Abstract
The effect of a series connection on micropumps using oscillating elastic films has been investigated. The moving part of the micropump is composed of a NdFeB magnet and a polyimide film. When an alternating magnetic field is applied, the magnet oscillates rotationally due to magnetic torque, which causes the film to fan the fluid and induce the flow. At first the basic pumping properties of the single and serially connected micropumps were evaluated. The output pressure was proportional to the number of the pumps in series. Based on this result, a novel liquid cooling system for portable electronic equipment such as a laptop computer has been fabricated and tested. The prototype including multiple micropumps serially connected in a cooling pipe has successfully demonstrated good cooling performance.
