发明授权
US6035097A Electrical heating unit with two concentrically disposed heating elements
失效
具有两个同心放置的加热元件的电加热单元
- 专利标题: Electrical heating unit with two concentrically disposed heating elements
- 专利标题(中): 具有两个同心放置的加热元件的电加热单元
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申请号: US58380申请日: 1998-04-09
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公开(公告)号: US6035097A公开(公告)日: 2000-03-07
- 发明人: Jurgen Behrendt , Boris Wonka , Wilfried Rolf , Robert Jung
- 申请人: Jurgen Behrendt , Boris Wonka , Wilfried Rolf , Robert Jung
- 申请人地址: DEX Frankfurt
- 专利权人: Braun GmbH
- 当前专利权人: Braun GmbH
- 当前专利权人地址: DEX Frankfurt
- 优先权: DEX19634420 19960826
- 主分类号: A45D20/30
- IPC分类号: A45D20/30 ; H02K11/00 ; H05B3/16 ; H05B1/00 ; F24H3/00
摘要:
An electrical heating unit, particularly for a hair drier, comprises a first wire heating element, in particular a spiral coil wire heating element (2) having a heat conductor support comprising at least one support plate (4, 5, 6), and a heat conductor winding (7) arranged thereon. This spiral coil wire heating element serves to heat the stream of air flowing through the hair drier. At least one second wire heating element is provided, serving the function of adapting the electrical voltage for a further electrical load, particularly as a series resistor, for a direct-current motor fitted with an impeller to produce the stream of air. The second wire heating element (3) comprises a frame-type heat conductor support (8) and a heat conductor winding (9) arranged thereon which fills the free area of cross section of the heat conductor support (8). Further, the second heating element (3) is secured to the first heating element (2).
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