| 摘要 |
<p>The present invention provides a linear motor that simultaneously achieves cogging reduction and high thrust. This linear motor (1) is equipped with: a field magnet (3) wherein multiple permanent magnets (31) are arranged in a row with alternating poles; and an armature (2) which has multiple teeth (24) which are arranged so as to face the field magnet (3) with a space (P) therebetween, a yoke section (25) for connecting the multiple teeth (24) together, and winding wires (23) respectively wound around the multiple teeth (24). The multiple teeth (24) face the field magnet (3) at tip sections (24t) via the space (P) and are connected to the yoke section (25) at rear end sections (24e). Among the multiple teeth (24), a non-end tooth (24b), that is, a tooth not positioned on either end, is positioned such that a space (P) formed between the field magnet (3) and the non-end tooth (24b) is larger than a space (P) formed between the field magnet (3) and teeth (24a) positioned on either end. Cross-sectional areas near the tip sections (24t) of all of the multiple teeth (24) or non-end teeth (24b) are smaller than cross-sectional areas near the rear end sections (24e) thereof.</p> |
