Physical quantity detecting device

Abstract

An object of the present invention is to provide a physical quantity detecting device capable of inhibiting a cantilever-shaped portion of a circuit board from resonating. A physical quantity detecting device includes: a circuit board 400 having: a first support portion 403 on which a physical quantity detecting element is implemented, the physical quantity detecting element being configured to detect a physical quantity of fluid; and a second support portion 460 on which a temperature detecting element is implemented, the temperature detecting element being configured to detect a temperature of the fluid, the second support portion 460 protruding from an edge of the circuit board 400, the second support portion 460 having the temperature detecting element disposed at a leading end portion 700a included in a free end; and a housing 302 molded by injection molding, the housing 302 supporting the circuit board 400, in which the second support portion 460 has a third support portion 701 or 701a supporting the second support portion 460 in connection with the housing 302, the third support portion 701 or 701a being located on a side on which the leading end portion 700a is located, with respect to a base end portion 700b, the third support portion 701 or 701a being located on a side on which the base end portion 700b is located, with respect to an implementation portion on which the temperature detecting element is implemented.

Dependencies are inferred from the claim text.