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    • 3. 发明专利
    • ES2175740T3
    • 2002-11-16
    • ES98936314
    • 1998-06-08
    • BSH BOSCH SIEMENS HAUSGERAETE
    • SKRIPPEK JORG
    • D06F37/30
    • A front-loading washing machine includes a tub having a rear wall, an at least approximately horizontally disposed shaft, a laundry drum mounted overhung on the shaft, and a rigid supporting part fitted to the rear wall. A drive device for the washing machine includes a flat-type motor fitted to the rear wall for directly driving the shaft. The motor has a rotor formed entirely of magnetizable steel and a stator connected on the rigid supporting part or to the rear wall of the tub. The rotor has a hub encompassing and centrally fastened on an outer end of the shaft, a multiplicity of openings between the hub and a peripheral part, and a bell-like flange on the peripheral part pointing toward the tub. The stator has a central bearing sleeve for the shaft and for the hub and it has exciter windings. Laminate stacks are distributed on the stator for receiving the windings. The stacks are outwardly opposed by the flange with an air gap. The direct drive device for the drum provides good capability of cooling the windings with ambient air, so that the flat, slowly rotating motor cannot overheat during proper operation when dimensioned according to requirements. In addition, the motor can be fully preassembled at its manufacturer's plant.
    • 6. 发明专利
    • ES2185198T3
    • 2003-04-16
    • ES98939494
    • 1998-06-08
    • BSH BOSCH SIEMENS HAUSGERAETE
    • HEYDER REINHARDSKRIPPEK JORG
    • D06F37/30
    • A washing machine includes a tub having a bottom wall and a laundry drum having an at least approximately horizontally disposed shaft. A drive device for the washing machine includes a flat motor for directly driving the laundry drum shaft. The motor includes a rotor having a rotor shaft and a stator connected to the bottom wall of the tub instead of to a rigid carrying part with a bearing sleeve for the laundry drum shaft. The stator has a central bearing sleeve with one or two spaced-apart rolling bearings for the rotor shaft. The rotor shaft has an end facing the laundry drum with a concentric bore for receiving the laundry drum shaft. The bore reaches approximately into a plane of the drum-side rolling bearing. The rotor has a bell fastened to an outer end of the rotor shaft with an edge pointing toward the tub. Magnetizable poles are distributed on the inner periphery of the edge and across airgaps oppose a number of exciting windings distributed circularly on the stator. The drive for the horizontally mounted laundry drum has a cost-effective construction, the motor may be fully preassembled at the factory where it is manufactured and the stator may replace an otherwise conventional star carrier for the tub.