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    WÄRMEÜBERTRAGER
    1.
    发明公开
    WÄRMEÜBERTRAGER 审中-公开

    公开(公告)号：EP2724086A2

    公开(公告)日：2014-04-30

    申请号：EP12735798.6

    申请日：2012-06-19

    申请人： Behr GmbH & Co. KG

    发明人： KOHL, Michael ,  KRUMBACH, Karl-Gerd ,  SPRANGER, Thomas ,  SCHENK, Frank-Heiner

    IPC分类号： F24H3/08 ,  B23P15/26 ,  B60H1/00 ,  B60H1/22 ,  F24H9/18 ,  H05B3/04 ,  H05B3/46

    CPC分类号： F24H9/12 ,  B23P15/26 ,  B60H1/2225 ,  F24H3/0429 ,  F24H3/081 ,  F24H9/1872 ,  F24H2250/04 ,  H05B3/50 ,  H05B2203/02 ,  H05B2203/024 ,  Y10T29/49083

    摘要： The invention relates to a heat exchanger (1), comprising at least one electric resistance heating element (2), in particular at least one PTC element (3), at least two conductors (4), in particular circuit boards (6, 7), which are connected to the at least one electric resistance heating element (2) in an electrically conductive manner in order to conduct electric current through the at least one electric resistance heating element (2) and thereby heat the electric resistance heating element (2), at least one thermally conductive element (11) for transferring heat from the at least one electric resistance heating element (2) to a fluid to be heated, at least one electrically insulating element (22), which electrically insulates the at least two conductors (4), preferably from the at least one thermally conductive element (11), and at least one pipe (18), wherein the at least two conductors (4) and the at least one electric resistance heating element (2) are arranged within a cavity (19) bounded by the pipe (18) and the pipe (18) lies on the at least one electrically insulating element (22) under a compressive force at at least one contact surface (14). The aim of the invention is to operate the heat exchanger with high electric current under high voltage, for example greater than 50 V, without any risk to the surroundings, in particular persons. Said aim is achieved in that the pipe (18) has a greater thickness at the at least one contact surface (14) than outside of the at least one contact surface (14) and a step (17) is formed on the pipe (18) between the contact surface (14) and the region outside of the contact surface (14) as a result of the differing thickness.

    摘要翻译： 本文公开了一种热交换器，其包括至少一个电阻加热元件，至少两个导体，其以导电方式连接到至少一个电阻加热元件，以便传导电流通过至少一个电阻 加热元件，从而加热电阻加热元件，用于将热量从至少一个电阻加热元件传递到待加热流体的至少一个导热元件，至少一个电绝缘元件，其将至少两个电绝缘元件电绝缘 导体和至少一个管道，其中所述至少两个导体和所述至少一个电阻加热元件布置在由所述管道限定的空腔内，并且所述管道处于所述至少一个电绝缘元件处的压缩力处 至少一个接触面。