It has been found that the prior art mini air compressor on the market utilizes a motor to drive a piston to compress air
. However, when the compressor is turned on, the motor will immediately drive the piston to reciprocate in a cylinder thereby producing a relatively large transient current through the motor and therefore shortening its working life.
Therefore, it is an object of the present invention to provide an improved mini air compressor which may obviate and mitigate the above-mentioned drawbacks.an eccentric member provided with a shaft extending through said transmission gear to engage with said fixed seat so that one side of said eccentric member is spaced apart from the enlarged threaded portion of said transmission gear and said transmission gear must rotate through a certain distance before said side contacts and pushes said eccentric member to rotate, said eccentric member being connected via a linking rod with a piston disposed within said cylinder;