Sensor apparatus for capturing a filling level and/or a quality of a fluid, and method for producing said apparatus
AssigneeVitesco Technologies Germany GmbH
InventorsKarl-Friedrich Pfeiffer, Henning Grotevent, Manfred Roth
Life of this patent
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Abstract
Various embodiments of the teachings herein include a fluid sensor apparatus for capturing a filling level and/or a quality of a fluid in a fluid container. The fluid sensor apparatus may include: a printed circuit board having a recess extending at least partially into the printed circuit board along a thickness and a fastening area; an ultrasonic transducer fitted to the fastening area so the ultrasonic transducer extends at least partially over the recess; and a housing at least partially surrounding the printed circuit board and the ultrasonic transducer so a portion of the housing area is arranged in the recess.
Claims15
A fluid sensor apparatus for capturing a filling level and/or a quality of a fluid in a fluid container, the fluid sensor apparatus comprising:
- a printed circuit board extending along a plane and having a recess formed therein, the recess extending at least partially into the printed circuit board normal to the plane, and a fastening area adjacent the recess along the plane;
- an ultrasonic transducer fitted to the fastening area so the ultrasonic transducer extends at least partially across the recess along the plane;
- and
- a housing at least partially surrounding the printed circuit board so a portion of the housing extends into the recess;
- wherein the housing encapsulates the ultrasonic transducer against the printed circuit board.
A method for producing a fluid sensor apparatus to capture a filling level and/or a quality of a fluid in a fluid container, the method comprising:
- providing a printed circuit board extending along a plane;
- producing a recess in the printed circuit board, the recess extending at least partially into the printed circuit board normal to the plane;
- fitting an ultrasonic transducer to a fastening area of the printed circuit board adjacent the recess along the plane so the ultrasonic transducer extends at least partially over the recess;
- and
- encapsulating the printed circuit board and the ultrasonic transducer with plastic to form a housing encapsulating the ultrasonic transducer against the printed circuit board and extending at least partially into the recess.
Dependencies are inferred from the claim text.