LINEAR POWER GENERATOR

摘要

A linear power generator includes a columnar or cylindrical center yoke made of a soft magnetic material and an outer yoke made of a soft magnetic material. In the center yoke, rod-shaped permanent magnets magnetized in a circumferential direction are arranged in the circumferential direction in an outer circumference of the center yoke such that opposed magnetic poles of the permanent magnets adjacent to each other become identical, the permanent magnets are extended in an axial direction, and the center yoke includes plural center-side projecting portions linearly arranged in the circumferential direction. The cylindrical or columnar outer yoke includes plural winding portions, plural groove portions, and an outer-side projecting portion. The winding portions are arranged in the circumferential direction about a center axis. The groove portions are arranged at positions opposed to the permanent magnets.

主权项

1. A linear power generator comprising:
a columnar or cylindrical center yoke that is made of a soft magnetic material, a plurality of rod-shaped permanent magnets magnetized in a circumferential direction being arranged in the circumferential direction in an outer circumference of the columnar or cylindrical center yoke such that opposed magnetic poles of the permanent magnets adjacent to each other become identical, the permanent magnet being extended in an axial direction, the center yoke including a plurality of center-side projecting portions linearly arranged in the circumferential direction; and a cylindrical or columnar outer yoke that is made of a soft magnetic material, the outer yoke including a plurality of winding portions that are arranged in the circumferential direction about a center axis, a plurality of groove portions that are arranged at positions opposed to the permanent magnets, and an outer-side projecting portion that is arranged while opposed to the center-side projecting portion, the outer-side projecting portion being deviated from the center-side projecting portion by a half pitch, the groove portion being pinched by the outer-side projecting portion in the circumferential direction.