| 摘要 |
A protection device of a drive mechanism of a clock is provided. The drive mechanism includes a driven member, and a driving member for driving the driven member. The protection device is mounted between the driving member and the driven member, and includes a first magnetic member mounted in the driven member, and a second magnetic member mounted in the driving member and attracted with the first magnetic member by a magnetic force, so that the driven member may be rotated by rotation of the driving member. Thus, when a resistance exerted on the driven member is greater than the magnetic force between the first magnetic member and the second magnetic member, the driving member idles, so as to protect the direct current small motor.
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