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2. 发明授权

US5262619A Heating device with PTC resistors non-abrasively positioned in a metallic heat body for heating flowing media 失效
标题翻译：具有PTC电阻器的加热装置非磨损地定位在用于加热流动介质的金属加热体中
公开(公告)号：US5262619A
公开(公告)日：1993-11-16
申请号：US927464
申请日：1992-08-10
申请人： Robert Karner
发明人： Robert Karner
IPC分类号： F24H3/04 , H05B3/10 , H05B3/14 , H05B1/02 , H01C7/02
CPC分类号： H05B3/141
摘要： A heating device for heating flowing media includes a heat exchanger to be heated by PTC resistors. The heat exchanger is formed of thermally conductive metal having a slit-like pocket formed therein defining a given shape and defining pocket surfaces facing one another. A cuboid substrate body has a shape adapted to the given shape and an introduction side to be introduced into the pocket. The substrate body has opposed surfaces with recesses formed therein for receiving the PTC resistors and an internal conduit formed therein for receiving a contact spring. At least the surfaces of the substrate body having the recesses and the pocket surfaces facing the surfaces of the substrate body are beveled for decreasing the cross section of the substrate body and of the pocket from the introduction side inward, and for pressing the PTC resistors against the pocket surfaces upon introduction of the substrate body into the pocket with the PTC resistors located in the recesses.
摘要翻译：用于加热流动介质的加热装置包括由PTC电阻器加热的热交换器。热交换器由导热金属形成，其具有形成在其中的狭缝状袋，其限定给定的形状并且限定彼此面对的口袋表面。长方体衬底主体具有适于给定形状的形状和引入侧的导入侧。衬底主体具有形成在其中的用于容纳PTC电阻器的凹部的对置表面和形成在其中的用于容纳接触弹簧的内部导管。至少具有凹部和面向基板主体表面的凹部表面的基板本体的表面是倾斜的，用于将基板主体和凹槽的横截面从引入侧向内减小，并且用于将PTC电阻器压靠在衬底本体引入到凹口中的位置在凹槽中的PTC电阻器的口袋表面。

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