| 摘要 |
According to the present invention, on the periphery of a magnetic shield space (44), rounded curved sections (55, 56), which are convex toward the interior space in the magnetic shield space (44), are formed on the end sections of the first side (52) and the second side (53) adjacent to one end (51a) and the other end (51b) of the outer peripheral side (51). In the vicinity of corners (C1, C2) of the magnetic shield space (44) positioned at both ends of the outer peripheral side (51), the magnetic flux density per cross-section area of the flow path of the short circuit magnetic flux (M) is smaller, reducing the amount of short circuit magnetic flux (M). |
