| 摘要 |
A permanent magnet power generating device comprises a first soft magnetic body (1), a coil (2) and a permanent magnet (3). The first soft magnetic body has a first branch (11), a second branch (12), and a third branch (13) arranged at intervals. The second branch is located between the first branch and the third branch. The coil is wound around the second branch. The permanent magnet, which is in the form of "C" shape, is provided with two branches inserted between the first branch and the second branch, and between the second branch and the third branch, respectively. Both of the branches of the permanent magnet are in contact with the first branch and the second branch of the first soft magnetic body, or with the second branch and the third branch of the first soft magnetic body, selectively. The permanent magnet power generating device is low-cost, simple-structure, non-polluting, and suitable for the applications of collecting micro energy. |
