The invention discloses an electric connector, comprises an insulated housing, a male plug at one end of the housing and a female socket on the opposite end of the housing. The male plug and female socket respectively have an electrode and an electrode sli...

The invention discloses an apparatus and method for charging movable devices like carts or trolleys. Each movable device includes a charging unit and a charging connector coupled to the charging unit, including a male plug at one end, a female socket at th...