ES1045514U - Liquid level sensor and temperature. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Liquid level and temperature sensor, of the electronic type used for oil control in explosion engines or the like, comprising a thin wire (4) as oil level sensor and a temperature sensor (6), in the inside of a hollow tubular casing (7) opened at the bottom and by a hole near the opposite end, finding on this end a threaded bushing (8) suitable for fastening the sensor to the engine block and having a connector ( 9), characterized in that the sensor is constituted by a narrow and elongated printed circuit board (1), which has a series of electrical conductive tracks (2) along its length, the temperature sensor (6) being housed in a near point at one end of the plate (1) and suitable for immersion in the fluid and having a window (3) longitudinally elongated in an intermediate zone of the plate (1), said window (3) interrupting one or more tracks (2) conductive length inal and being welded between the interrupted ends of the tracks (2) a fine metallic wire (4) which is formed as a fluid level sensor susceptible to the behavior as a ptc type probe when subjected to tension; because the window (3) is made between two points of the plate (1) capable of being semi-submerged within the fluid, the lower side of the window (3) constituting the minimum level and the upper side of the window (3) the maximum level; and in that the plate (1) has at its upper end opposite the temperature sensor (6) electrical connection terminals (5) and adjacent an area suitable for the reception of electronic components (10) constituting attached electronic circuitry; and in that the terminals (5) are housed inside the connector (9). (Machine-translation by Google Translate, not legally binding)