Heating resistor type flow measuring device
    11.
    发明申请

    公开(公告)号:US20060277990A1

    公开(公告)日:2006-12-14

    申请号:US11440457

    申请日:2006-05-25

    IPC分类号: G01F1/68

    摘要: A heating resistor type flow measuring device comprising a housing having a support part provided between a frame body and a connector and connected to the mounting part of a fluid passage, a flow rate detection element held on the frame body side of the housing, and an electronic circuit held on the housing and connected electrically to the flow rate detection element and the connector, wherein the electronic circuit is held on the frame body side of the housing and positioned in the fluid passage, a member with the rigidity higher than the material of the main structural member of the housing is formed integrally with the support part, the housing is fixed to the fluid passage through the member with high rigidity. A metal plate is inserted into the support part so as to increase rigidity. Further, a distance is provided between the support part and a metal plate forming a route for conducting the heat transferred to the metal base fixing an electronic circuit substrate by a plastic mold so as to form a structure obstructing a heat transfer, or a clearance is provided in a portion spaced by the plastic mold between the support part and the metal base so as to form a structure obstructing a heat transfer.

    Air flow measuring element and air flow measuring apparatus therewith
    12.
    发明授权
    Air flow measuring element and air flow measuring apparatus therewith 失效
    空气流量测量元件和气流测量装置

    公开(公告)号:US5892150A

    公开(公告)日:1999-04-06

    申请号:US5830

    申请日:1998-01-12

    CPC分类号: G01F1/698 G01F1/692 G01F1/699

    摘要: A measuring element for an air flow rate measuring apparatus has upstream and downstream heating resistors and first and second temperature compensating resistors paired with the upstream and downstream heating resistors, respectively. The resistors are mounted on an electrically insulated substrate positioned within an air flow. A substantial part of resistor film of the temperature compensating resistor paired with the upstream heating resistor is positioned upstream on the insulated substrate relative to the resistor film of the compensating resistor paired with the downstream heating resistor.

    摘要翻译: 用于空气流量测量装置的测量元件具有分别具有与上游和下游加热电阻器配对的上游和下游加热电阻器和第一和第二温度补偿电阻器。 电阻器安装在位于空气流中的电绝缘基板上。 与上游加热电阻器成对的温度补偿电阻器的电阻膜的主要部分相对于与下游发热电阻器配对的补偿电阻器的电阻膜位于绝缘基板的上游。