Portable Household Appliance

• US 20090151114A1
• Filed: 11/16/2006
• Published: 06/18/2009
• Est. Priority Date: 11/29/2005
• Status: Active Grant

• Current Assignee: Biogen Idec MA Inc. (Biogen, Inc.), Catia Roschi, Riccardo Roschi
• Original Assignee: Kostec SA
• Inventors: Pineschi, Massimiliano
• Granted Patent: US 7,950,107 B2
• Time in Patent Office: Days
• US Class Current: 15/412
• CPC Class Codes: A47L 9/2842 Suction motors or blowers
• CPC Class Codes: A47L 9/2857 User input or output elements for control, e.g. buttons, switches or displays
• CPC Class Codes: A47L 9/2878 Dual-powered vacuum cleaners, i.e. devices which can be operated with mains power supply or by batteries
• CPC Class Codes: A47L 9/2884 Details of arrangements of batteries or their installation
• CPC Class Codes: H01M 10/4264 with capacitors
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/345 using capacitors as storage or buffering devices
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

The portable household appliance comprises: a motor unit (3) arranged to operate at least at lower operating speeds (M) or at higher speeds (MD, MX) and vice versa; first power supply means (9) arranged to constantly supply said motor unit (3); control means for increasing said lower speeds (M) in a first time interval (T1) up to said higher speeds (MD, MX) or to reduce said higher speeds (MD, MX) in a second time interval (T2) up to said lower speeds (M); auxiliary means (10) for the temporary power supply of said motor unit (3) which can be actuated during said first time interval (T1).

Claims

1. ) A portable household appliance comprising:

a motor unit arranged to operate at least at lower operating speeds or at higher speeds and vice versa;

a first power supply designed to constantly supply said motor unit;

a controller configured to increase said lower speeds in a first time interval up to said higher speeds or to reduce said higher speeds in a second time interval up to said lower speeds;

an auxiliary power supply of said motor unit configured to be actuated during said first time interval;

wherein said motor unit is arranged to recharge at least said auxiliary power supply in said second time interval;

wherein said controller is also arranged to switch said motor unit to a recharge generator unit so to recharge said auxiliary power supply means in said second time interval.

3. ) A portable household appliance according to claim 1, wherein said first power supply comprises a battery.

4. ) A portable household appliance according to claim 3, wherein said battery is of the rechargeable type by a power recharger.

5. ) A portable household appliance according to claim 4, wherein said power recharger comprises an inductive recharger.

6. ) A portable household appliance according to claim 5, wherein said inductive recharger comprises:

a base configured to shapes a placement seat of said household appliance under a recharge condition of said battery and/or of said auxiliary power supply;

a recharge power transmitter, housed in said base and which can be connected to a conventional electric energy mains supply;

first electronic means arranged to automatically actuate said transmitter means when said household appliance is positioned in said placement seat;

a recharge receiver housed in said portable household appliance and connected to said battery and said auxiliary power supply.

7. ) A portable household appliance according to claim 6, wherein said placement seat is shaped to receive said household appliance in a pre-established position so that said transmitter and said recharger receiver are facing each other.

8. ) A portable household appliance according to claim 1, wherein said auxiliary power supply comprises at least one ultra-capacitor connected to said motor unit and said battery through connection circuits.

9. ) A portable household appliance according to claim 1, wherein said auxiliary power supply comprises at least one ultra-capacitor and wherein said controller is provided to be placed between said at least one ultra-capacitor and said battery and arranged to actuate and/or stop said at least one ultra-capacitor in each said first time interval.

11. ) A portable household appliance according to claim 6, wherein said at least one ultra-capacitor is rechargeable one or more times with said base and separately from said battery.

12. ) A portable household appliance according to claim 1, wherein said auxiliary power supply comprises at least one ultra-capacitor, wherein said at least one ultra-capacitor is suitable to supply said motor unit separately from said battery.

13. ) A portable household appliance according to claim 1, wherein said portable household appliance comprises a vacuum cleaner.

2. ) (canceled)

10. ) (canceled)