Abstract: A columnar core main body including a plurality of laminated cores having the same shape and that has a shaft hole on a rotation center side, a plurality of permanent magnets penetrate around the shaft hole of the core main body in an axial direction and is fixed in each of a plurality of magnet accommodating holes arranged in a circular shape in a circumferential direction, and protrusions in the magnet accommodating holes in one-to-one correspondence. The protrusion protrudes along the circumferential direction and comes into pressure contact with the permanent magnet accommodated in the magnet accommodating hole from the radially inner side. Each of the protrusions is defined by a protrusion forming space extending along the circumferential direction from a radially inner side surface of each magnet accommodating hole, and at least one of the protrusion and the protrusion forming space is on the magnetic pole center.

Abstract: A rotor includes a cylindrical core main body having a columnar space on a rotation center side. A plurality of magnet accommodating hole pair penetrates the core main body in an axial direction and includes a pair of magnets accommodating holes arranged in a V shape so as to be separated from each other toward one side of the core main body which is a stator side in a radial direction. A plurality of permanent magnets is fixed in the respective magnet accommodating holes. The plurality of permanent magnets come into pressure contact with the permanent magnet from the q-axis side and the other side in the radial direction. A protrusion forming space penetrates in the axial direction and extending from a side surface to the one side in the radial direction along the side surface.

Abstract: A rotor includes: a circular rotor core in which a plurality of magnetic poles are formed in a circumferential direction on an outer circumferential surface; an auxiliary magnet placed on an axial end face of the rotor core so as to face the rotor core; a plate-shaped mounting member having a thickness t1 on which the auxiliary magnet is mounted; and a plate-shaped back yoke having a thickness t2 and placed opposite to the rotor core, sandwiching the auxiliary magnet and the mounting member.

Abstract: A magnetic wave shield tape comprises a strip-shaped conductive member and a strip-shaped insulative member, the strip-shaped magnetic member being fixed to and overlapping the strip-shaped insulative member in the width direction.

Abstract: An improved electromagnetic wave shielding panel and wall structure includes a plate member of electrically nonconductive material and an electrically conductive foil applied to at least one surface thereof, with an electrically conductive net laid on the electrically conductive foil with its fringe portion extending beyond the edge of the plate member. The use of an electrically conductive net which extends beyond the edge of the plate member, facilitates electrical connection at the joint between adjacent panels and enhances electromagnetic shielding at both low and high impedance levels. Necessary electrical connections can be made simply by abutting the adjacent side surfaces of the panels against each other with their net fringe portions sandwiched therebetween.