CPC G01F 1/6847 (2013.01) [G01F 1/696 (2013.01)] | 10 Claims |
1. A physical quantity detection device comprising:
a detector that detects a physical quantity;
a circuit board on which the detector is mounted;
a housing that houses the circuit board; and
a cover that is fixed to the housing and defines a flow passage in which the detector is disposed, wherein:
the housing and the cover include a positioning portion,
the positioning portion includes a pin extending in a thickness direction of the circuit board and a fitting portion into which an end portion of the pin is fitted for positioning between the housing and the cover,
the pin includes an engagement portion that faces an engagement surface of the circuit board along the thickness direction and restricts movement of the circuit board in a surface direction along front and rear surfaces of the circuit board,
the pin includes a first portion provided in the housing and including the engagement portion and a second portion provided in the cover and including the end portion, and
the fitting portion is provided at an end of the first portion of the pin, and a diameter of the fitting portion is configured to expand by fitting the end portion of the second portion of the pin therein to restrict movement of the circuit board in the thickness direction of the circuit board.
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