Patent ID: 8813569

Claim:
An ultrasonic sensor, comprising: an ultrasonic element including an ultrasonic oscillator for sending, receiving or transceiving ultrasonic waves, an element body having an opening for passage of ultrasonic waves formed on one surface, the ultrasonic oscillator being arranged within the element body, and terminal portions protruding from the element body to feed an electric current to the ultrasonic oscillator; a housing having an opening formed on one surface for communication with the opening of the element body, the housing including a receiving portion for receiving the ultrasonic element and a positioning portion integrally formed with the receiving portion to position the ultrasonic element in place; and a printed wiring board arranged to interpose the ultrasonic element between the printed wiring board and the receiving portion of the housing, the terminal portions of the ultrasonic element being mounted to the printed wiring board.