| 摘要 |
<p>An electrical lift drive has a motor controlled by power and control electronics systems (4,5). Those electronics systems (4,5) form a single constructional unit with the motor, for example by positioning them in a box 3 connected directly to the housing of the motor, the box 3 being e.g. an elongation of a motor terminal box 2. A ventilator 6 for providing a cooling air flow for the motor may also then be used to cool the electronics systems (4,5). Thus the assembly of the drive is considerably facilitated and considerably less expensive, since parts which must inevitably be attached to the motor can be used to a very large extent to mount the electronic systems. <IMAGE></p> |
