Refillable liquid cartridge system

摘要

The present invention concerns a refillable liquid cartridge system comprising:
a docking cap (2) for controlling liquid flow from a main container (3) to a refillable cartridge (1),
a refillable cartridge (1) for use as a portable spray device and mounted on the docking cap (2),
a main container (3) for providing liquid contained therein to the refillable cartridge and mounted on the docking cap (2),
a power supply (26) for powering the docking cap (2). The docking cap (2) comprises:
a piezoelectric micro-pump system(23), and
a system controller (25) operable to control the micro-pump. The piezoelectric micro-pump system (23) is operable to pump liquid from the main container (3) to the refillable cartridge (1) and to detect an empty state of the main container (1) and a full state of the refillable cartridge (1).