| 摘要 |
<p>There is provided a rotation angle detecting device wherein a filling member applied in a second accommodating portion which houses an electromagnetic conversion element is prevented from entering into a first accommodating portion which houses a magnet. The rotation angle detecting device (1) is provided with: a rotating member (2); the magnet (3), which is fixed to the rotating member (2) to rotate therewith; a magnetism detecting package (4) that houses an electromagnetic conversion element (4a), which is disposed to face the magnet (3), and detects the magnitude of the magnetic field of the magnet (3) when the magnet (3) rotates; a housing (5) having a first accommodating portion (5b) that rotatably houses the rotating member (2), a second accommodating portion (5d) that houses the magnetism detecting package (4) and a partition (5f) dividing them; a filling member (10), with which the second accommodating portion (5d) is filled such that the magnetism detection package (4) is hermetically held; and a cylindrical metal member (11), which is provided in the first accommodating portion (5b) to rotatably support the rotating member (2). A portion (11a) of the metal member (11) is exposed from the second accommodating portion (5d). At a portion of the housing (5) near the exposed portion (11a) of the metal member (11), a creeping distance extending section (11b) that suppresses entry of the filling member (10) between the metal member (11) and the housing (5) is provided.</p> |
