Sensor with magnetic drive for detecting liquid level or moving parts

摘要

The sensor includes a hollow plastic chamber (10) which is open at one end, and a magnetic switch (13) which lies with the associated electric conductors (18,19) in the hollow chamber. These are sealed tight, leaving the open end of the hollow chamber. The switch (13) is held by an elongated rod (12), which extends along inside the hollow chamber and which has an elongated housing seat (20) for the switch (13). The ends of the switch emanate in recesses (21,22), for positioning the electric connecting conductors (18,19) which extend along at the opposite sides of the holding rod (12). The holding rod of the switch closes the open end of the hollow chamber (10), and ends with a stop (27) for the axial positioning of the holding rod with the magnetic switch (13) in the hollow chamber. After the insertion of the holding rod with the switch, a plastic sleeve (28) is pressed on the open end of the hollow chamber and locks the holding rod so that it seals the open end of the hollow chamber (10).