LIQUID LEVEL DETECTION DEVICE AND METHOD OF MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide a liquid level detection device and a method of manufacturing the same in which the deterioration of electric connection reliability between a protective element and a terminal is suppressed. SOLUTION: The liquid level detection device detects the height of a liquid level by vertically moving a float accompanied by the variation of the liquid level, rotationally moving a rotary part accompanied by the vertical movement, changing an application direction of the magnetic flux density of a magnet applied to an angle detection part including a magneto-electric conversion element accompanied by the rotational movement, and detecting the variation of an electric signal outputted from the angle detection part according to the change of the magnetic flux density. A protective element electrically protecting the angle detection part includes: a protection part disposed at the bottom surface of a recessed part formed of a plurality of terminals and a holder integrally holding the plurality of terminals, mechanically and electrically connected to the terminals via solder, and protecting the solder by coating the solder in the recessed part, and a spacer at least partially embedded in the protection part. COPYRIGHT: (C)2011,JPO&INPIT