| 摘要 |
The present invention relates to an electric motor for automatic braking after power has been turned-off. The electric motor comprises a stator, a rotor, a shaft provided on the rotor and a braking disc mounted on the shaft. A supporting bracket rings the exterior of the shaft and a friction sheet is mounted on a side portion of the supporting bracket facing the braking disc. To the rear of the supporting bracket is disposed a wedge-shaped body which comprises at least one first beveled surface. A magnetic conducting body mounted to the stator comprises at least one second beveled surface, wherein the inclines of the first beveled surface and the second beveled surface are coincidental. When power to the electric motor is interrupted or switched off, the supporting bracket engages axially the braking disc causing the first and second beveled surfaces to move the supporting bracket further into axial engagement with the braking disc to stop the rotation of the braking disc and therefore the rotor. <IMAGE>
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