EP 1431006 A3 20140618 - Method of Operating and Cooling Device for the Motor of an Electric Tool
Title (en)
Method of Operating and Cooling Device for the Motor of an Electric Tool
Title (de)
Betriebsverfahren und Kühleinrichtung für den Motor eines Elektrowerkzeugs
Title (fr)
Procédé de fonctionnement et dispositif de refroidissement pour le moteur d'un outil électrique
Publication
Application
Priority
DE 10259372 A 20021218
Abstract (en)
[origin: EP1431006A2] The method involves control electronics regulating the unloaded operating revolution rate to a value equal to a selected working revolution rate (n1). The motor is operated at a defined increased revolution rate (n2) for cooling if there is no load moment acting on the motor. The motor is changed over to the higher speed after a defined no-load period (deltaT). AN Independent claim is also included for the following: (a) an electric tool with control electronics for the motor revolution rate (b) and a method.
IPC 8 full level
B25D 17/00 (2006.01); B25F 5/00 (2006.01); H02H 7/085 (2006.01); H02P 29/02 (2006.01)
CPC (source: EP US)
B25F 5/008 (2013.01 - EP US); Y10S 388/934 (2013.01 - EP US); Y10S 388/937 (2013.01 - EP US)
Citation (search report)
- [A] DE 29701358 U1 19970417 - LAESSIG LOTHAR [DE], et al
- [A] US 4550277 A 19851029 - CARNEY JOSEPH E [US]
- [AD] US 4430681 A 19840207 - BENZING ROLF [DE]
- [A] EP 0135613 A1 19850403 - KRESS ELEKTRIK GMBH & CO [DE]
- [A] US 5525878 A 19960611 - BUCHANAN JR HARRY C [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated extension state (EPC)
AL LT LV MK
DOCDB simple family (publication)
EP 1431006 A2 20040623; EP 1431006 A3 20140618; EP 1431006 B1 20151021; DE 10259372 A1 20040708; JP 2004195643 A 20040715; JP 4450612 B2 20100414; US 2004189224 A1 20040930; US 6911793 B2 20050628
DOCDB simple family (application)
EP 03104751 A 20031217; DE 10259372 A 20021218; JP 2003414399 A 20031212; US 73727403 A 20031216