Power supply for an electrically driven wheel barrow includes a removable battery unit inserted into a box with first and second battery contacts and plug-in connectors

摘要

A box (5) has a box body (BB) (51) with an open end to attach to a wheel barrow (3). A battery unit (BU) (7) inserts into the box body and can be removed. The BU has a set of first battery contacts (BC). An electric plug-in connector unit (6) attaches to the BB and includes a set of second BC (64) to fit the first BC.