| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a residual air gap disk for simplifying a structure of a magnetic module.SOLUTION: A residual air gap disk 1 has a spherical surface shape, is supported by an end face of an armature 4 via an annular outer circumference area, and further is supported by an end face of a magnetic core 3 via an upper area arranged at a central part. When a magnetic coil 8 is energized, due to a magnetic field generated thereby, the armature 4 is attracted toward the magnetic coil 8 or the magnetic core 3. In this state, an axial gap between the armature 4 and the magnetic core 3 is narrowed, consequently a bending stress is exerted to the residual air gap disk 1, and deviation of the magnetic core 3, the armature 4, and the annular magnetic coil 8 surrounding the residual air gap disk 1 in a radial direction is prevented.</p> |
