Patent ID: 7062964

Claim:
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 inside of the frame body of the housing and positioned in the fluid passage, a member with the rigidity higher than a material of the housing is formed integrally with the support part, the housing is fixed to the fluid passage through the member with high rigidity, wherein the material of the housing is plastic, and said material with high rigidity is a metal plate and, wherein plastics are arranged on both sides of said metal plate in said support part, and at least one part of said metal plate is covered with said plastics.