Patent ID: 9677515
Date: 2017-06-13
CPC Classifications: F02M,G01F,G01K

Claim:
1. An air flow measuring device attached to an air intake duct, the air flow measuring device comprising: a resin housing defining a passage therein to flow a part of intake air; a sensor assembly including a sensor portion and a sensor circuit, which are configured to measure an air flow quantity; a thermistor equipped independently from the sensor assembly and configured to measure an air temperature; and an end terminal electrically connected with the sensor assembly and the thermistor, wherein the sensor assembly further includes an external connection terminal, the external connection terminal electrically connected with the sensor portion, the sensor circuit, and the thermistor, the external connection terminal has a portion exposed to an outside from the sensor assembly, and the portion of the external connection terminal serves as the end terminal, wherein the sensor portion, the sensor circuit, and the external connection terminal are integrally formed with the sensor assembly through primary resin-molding, whereby the external connection terminal is embedded inside a molding resin of the sensor assembly, and the sensor assembly is molded with the resin housing through secondary resin-molding, wherein the resin housing includes a resin coupler formed by the secondary resin-molding, and the resin housing includes a flange portion that is fixed to the air intake duct.