| 摘要 |
<p>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 pipeline, 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 pipeline, a member with a 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 pipeline through the member with high rigidity, a metal plate is inserted into the support part so as to increase a rigidity, a distance is provided between the support part and a metal base forming a route for conducting the heat transmitted 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.</p> |
