Abstract: By combining magnetically shielding members of various different properties with each other, a magnetically shielding capability of a magnetically shielding structure is made to improve and a greatly reduced magnetic field, as compared to an external one, can be realized effectively. The penetrating magnetic field has a distribution, on the longitudinal axis of a cylindrical shielding body made of a material manifesting a Meissner effect, which attenuates toward the center direction of the cylindrical shielding body. Magnetic induction is generated in a cylindrical collar made of a highly permeable material. Then, the penetrating magnetic field is shorted magnetically, being absorbed by the highly permeable material.

Abstract: An electrical equipment module is mounted in, for example, an electrically-powered seat unit for a vehicle. Multiple wire groups (52-56) comprised of wire harnesses or flat cables are led out of a module body (51) of the electrical equipment module (50) from different sides of the module body, thus reducing the outside diameter and thickness of each wire group so that the module body is thin and suited to be mounted in narrow layout space under a seat. By mounting, to the module body, a connector for connecting a printed circuit board (51m) in the module body to an external power supply or an external sensor and by making complicated wiring between the connector and the printed circuit board (51m) in advance in the module body, an assembling (wiring) work at the time of manufacturing the electrical equipment module is simplified.