公开(公告)号：EP0955826A1

公开(公告)日：1999-11-17

申请号：EP98951620.0

申请日：1998-11-13

申请人： Koninklijke Philips Electronics N.V. ,  PHILIPS AB

发明人： LAST, Frits

IPC分类号： A45D20

CPC分类号： A45D20/12

摘要： Hair dryer with remote sensing of the moistness of the air (10) by means of a detector (14) which compares the amount of radiant energy in two absorption bands in the spectrum of light emitted by an infrared source (12) and reflected by the hair. One of the absorption bands is caused by water in the hair. The amount of radiant energy in this absorption band changes significantly during the drying of the hair. The other absorption band is caused by keratin in the hair. The energy in this band changes to a much smaller extent during the drying of the hair. The intensity ratio of the two bands is an indicator for the moistness of the hair and can be employed to control the temperature and/or the air flow of the hair dryer.

公开(公告)号：EP0930840B1

公开(公告)日：2005-12-14

申请号：EP98929595.1

申请日：1998-07-16

申请人： Koninklijke Philips Electronics N.V. ,  PHILIPS AB

发明人： ETTES, Wilhelmus, Gerardus, Maria ,  KOSTER, Aafje, Gijsberta ,  LAST, Frits ,  VOORHORST, Fokke, Roelof

IPC分类号： A47L9/02 ,  A47L9/28

CPC分类号： A47L9/2852 ,  A47L5/28 ,  A47L9/009 ,  A47L9/02 ,  A47L9/2805 ,  A47L9/32

摘要： A vacuum cleaner with a suction nozzle (11) which is coupled to a handle (15) on which a user of the vacuum cleaner can exert a pushing or pulling force (FG) for moving the suction nozzle (11) over a surface (5) to be cleaned. The suction nozzle (11) is provided with electrical drive means (29) for exerting a driving force (FD) on the suction nozzle (11), such that the pushing or pulling force (FG) to be exerted by the user is limited. According to the invention, the vacuum cleaner comprises a detector (51, 81) capable of measuring the pushing or pulling force (FG) exerted on the handle (15) and an electrical controller (57) for controlling the driving force (FD) as a function of the measured pushing or pulling force (FG). The controller (57) controls the driving force (FD) in such a manner, for example, that the measured pushing or pulling force (FG) remains substantially zero. It is thus possible for the user to move the suction nozzle (11) effortlessly over the surface (5) to be cleaned. In a special embodiment, the handle (15) is coupled to the suction nozzle (11) by means of an elastically deformable coupling member (41, 69), while the detector (51, 81) comprises a position sensor (53, 83) for measuring a position of the handle (15) with respect to the suction nozzle (11).

公开(公告)号：EP0955826B1

公开(公告)日：2003-02-19

申请号：EP98951620.8

申请日：1998-11-13

申请人： Koninklijke Philips Electronics N.V. ,  PHILIPS AB

发明人： LAST, Frits

IPC分类号： A45D20/00 ,  A45D20/12

CPC分类号： A45D20/12

摘要： Hair dryer with remote sensing of the moistness of the air (10) by means of a detector (14) which compares the amount of radiant energy in two absorption bands in the spectrum of light emitted by an infrared source (12) and reflected by the hair. One of the absorption bands is caused by water in the hair. The amount of radiant energy in this absorption band changes significantly during the drying of the hair. The other absorption band is caused by keratin in the hair. The energy in this band changes to a much smaller extent during the drying of the hair. The intensity ratio of the two bands is an indicator for the moistness of the hair and can be employed to control the temperature and/or the air flow of the hair dryer.

公开(公告)号：EP0930840A1

公开(公告)日：1999-07-28

申请号：EP98929595.0

申请日：1998-07-16

申请人： Koninklijke Philips Electronics N.V. ,  PHILIPS AB

发明人： ETTES, Wilhelmus, Gerardus, Maria ,  KOSTER, Aafje, Gijsberta ,  LAST, Frits ,  VOORHORST, Fokke, Roelof

IPC分类号： A47L5 ,  A47L9

CPC分类号： A47L9/2852 ,  A47L5/28 ,  A47L9/009 ,  A47L9/02 ,  A47L9/2805 ,  A47L9/32

摘要： A vacuum cleaner with a suction nozzle (11) which is coupled to a handle (15) on which a user of the vacuum cleaner can exert a pushing or pulling force (FG) for moving the suction nozzle (11) over a surface (5) to be cleaned. The suction nozzle (11) is provided with electrical drive means (29) for exerting a driving force (FD) on the suction nozzle (11), such that the pushing or pulling force (FG) to be exerted by the user is limited. According to the invention, the vacuum cleaner comprises a detector (51, 81) capable of measuring the pushing or pulling force (FG) exerted on the handle (15) and an electrical controller (57) for controlling the driving force (FD) as a function of the measured pushing or pulling force (FG). The controller (57) controls the driving force (FD) in such a manner, for example, that the measured pushing or pulling force (FG) remains substantially zero. It is thus possible for the user to move the suction nozzle (11) effortlessly over the surface (5) to be cleaned. In a special embodiment, the handle (15) is coupled to the suction nozzle (11) by means of an elastically deformable coupling member (41, 69), while the detector (51, 81) comprises a position sensor (53, 83) for measuring a position of the handle (15) with respect to the suction nozzle (11).