A docking station for a robotic surface cleaning apparatus has a momentum separator. The momentum separator has an upper wall, a lower wall and a first sidewall extending between the upper and lower walls. The first sidewall comprises a side screen and an end wall is spaced from and faces the side screen whereby an up flow chamber is positioned between the end wall and the side screen. The upper wall also comprises an upper screen and an upper end wall is spaced from and faces the upper screen wherein an upper air flow chamber is positioned between the upper end wall and the upper screen.

The invention refers to an electrically operated mobile vacuum cleaner (2) for separating dust and particles from a suction flow (35), comprising an electric motor (38) and a turbine (40) for generating the suction flow (35), a vacuum cleaner housing (4, 6; 32) with a collection chamber (8) for collecting dust and particles separated from the suction flow (35), a battery cell (116) for providing the electric motor (38) with electric energy for its operation, wheels (20) assigned to the vacuum cleaner (2).

It is suggested that the battery cell (116) forms an integral part of an extractable battery pack (100a, 100b), the vacuum cleaner housing (4, 6; 32) comprises a recess (62) opening towards the environment and adapted to receive the battery pack (100a, 100b) in a direction (104) parallel to a longitudinal extension (136), the battery pack (100a, 100b) is equipped with first electrical contact elements (60; 60′) electrically connected to the battery cell (116), and the recess (62) is equipped with second electrical contact elements (64; 64′) electrically connected to the electric motor (38).

The contact elements (60, 64; 60, 64′) are adapted to automatically enter into a mutual electric contact upon insertion of the battery pack (100a, 100b) into the recess (62) for establishing an electric connection between the battery cell (116) and the electric motor (38) and for operation of the vacuum cleaner (2) by means of electric energy from the battery cell (116).

A docking station for a robotic surface cleaning apparatus is provide. The docking station has a plurality of cyclones comprising an upper cyclone and a lower cyclone. The cyclones are arranged such that the dirt outlet of the upper cyclone is not obstructed by the dirt outlet of the lower cyclone.

An air treatment apparatus has a momentum separator positioned in an air flow path. The momentum separator has an upper wall, a lower wall, a sidewall extending between the upper and lower walls and a momentum separator air inlet. A momentum separator air inlet is provided in an inlet portion of the sidewall. The momentum separator air inlet faces an opposed portion of the sidewall that is opposed to the inlet portion of the sidewall and the inlet portion of the sidewall comprises a side screen.

An electronic device according to an embodiment of the present invention may include: a dust suction part; a body part including a motor for generating suction force of the electronic device and a battery module operable by a power source of the motor; and an extension pipe combined between the dust suction part and the body part and providing a passage for moving foreign substances absorbed through the dust suction part to the body part, wherein the extension pipe may include a pipe-type external case, a supercapacitor module disposed in an inner space of the pipe-type external case and including a hollow space used as the passage, and a first docking connector for transmitting electrical energy of the supercapacitor module to the motor when the body part is combined to the extension pipe.

An electric vacuum cleaner including: a secondary battery; an electric blower that generates negative pressure by consuming electricity stored in the rechargeable battery; and a control unit that controls driving of the electric blower, and changes discharge current of the rechargeable battery based on the difference between terminal voltage of the rechargeable battery while the electric blower is stopped and terminal voltage of the rechargeable battery after a predetermined time has elapsed since the electric blower has been started up. The electric vacuum cleaner can continue driving of an electric blower and increase operation time even in the state that the internal resistance of a rechargeable battery is increased.

A vacuum cleaner includes a vacuum body defining an agitation chamber, an agitator, and an illumination system. The agitator is rotatably disposed at least partially within the agitation chamber and includes an agitator body defining an illumination chamber. The illumination system is at least partially disposed within the illumination chamber and includes at least one light source. Alternatively, a vacuum cleaner includes a vacuum body defining an agitation chamber, an agitator rotatably disposed at least partially within the agitation chamber, an illumination coupled to the vacuum body and including at least one light source, and a light guide configured to redirect light emitted in a first direction from the at least one light source to a second direction.

A surface cleaning apparatus comprises a surface cleaning head, an upright section moveably mounted to the surface cleaning head, and a portable cleaning unit removably mounted to the upright section and comprising an energy storage member and a portable cleaning unit suction motor. The energy storage member provides the portable cleaning unit suction motor with power at least when the portable cleaning unit is switched on and when the portable cleaning unit is removed from the upright section.

A hand vacuum cleaner has an information display device provided on a rear wall of the rear end of the hand vacuum cleaner.

Systems and methods for providing a two-in-one vacuum cleaner are disclosed. In an exemplary embodiment, the system comprises a nozzle that is detachable from a rest of a vacuum cleaner. The nozzle is configured to perform as a vacuum nozzle of the vacuum cleaner when attached to the vacuum cleaner. The nozzle is also configured to perform as a robotic vacuum cleaner when detached from the vacuum cleaner.