LIQUID LEVEL DETECTOR

摘要

A liquid level detector may comprise an arm attached to a float, a rotator fixed to the arm, a magnet fixed to the rotator, a supporter rotatably supporting the rotator. The supporter may comprise a body housing a magnetic sensor and opposing the magnet with a clearance, a supporting portion disposed along a rotation direction of the arm on an outer circumference side of the magnet and projecting from the body toward the rotator, and a flange portion projecting from the supporting portion along an outer circumference direction at a position spaced from the body in a rotational axial direction of the arm. The rotator may comprise an engaging portion slidably disposed relative to the flange portion along the rotation direction of the arm and engaging the flange portion so as to regulate a motion of the arm in the rotational axial direction.

主权项

1. A liquid level detector comprising:
a float; an arm attached to the float and configured to convert a vertical motion of the float into a rotary motion of the arm; a rotator fixed to the arm at a rotation center of the arm; a magnet fixed to the rotator; a supporter rotatably supporting the rotator; and a magnetic sensor covered by the supporter and configured to output a signal corresponding to a rotation of the magnet opposing the magnetic sensor via the supporter, wherein the supporter comprises:
a body housing the magnetic sensor and opposing the magnet with a clearance between the body and the magnet;a supporting portion disposed along a rotation direction of the arm on an outer circumference side of the magnet and projecting from the body toward the rotator; anda flange portion projecting from the supporting portion along an outer circumference direction at a position spaced from the body in a rotational axial direction of the arm, and the rotator comprises:
an engaging portion slidably disposed relative to the flange portion along the rotation direction of the arm and engaging the flange portion so as to regulate a motion of the arm in the rotational axial direction.