The invention discloses an energy feedback device for an elevator, which comprises a power supply circuit, a traction machine charges the power supply circuit through a frequency converter, the power supply circuit supplies power to external power utilization components, the power supply circuit comprises a first transmission circuit and a second transmission circuit, and the first transmission circuit and the second transmission circuit can respectively supply power to the external power utilization components. When no power failure occurs, only the first transmission circuit supplies power to the external power utilization component, and when the power failure occurs, the second transmission circuit is switched to supply power when the power of the first transmission circuit is used up. According to the invention, the first transmission circuit and the second transmission circuit can supply power to the external power utilization component, only the first transmission circuit supplies power to the external power utilization component under the condition of no power failure, and the second transmission circuit is switched to supply power under the condition of power failure. And it is ensured that long-time electricity can be continuously provided for external electric components during power failure.
本发明公开了一种电梯用能量反馈装置,包括供电电路,曳引机通过变频器向供电电路供充电,供电电路向外部用电部件供电,供电电路包括第一传输电路和第二传输电路,第一传输电路和第二传输电路可以分别向外部用电部件供电,不发生停电的情况下只由第一传输电路向外部用电部件供电,当发生停电第一传输电路电量用完的情况下,切换到第二传输电路供电。本发明中第一传输电路和第二传输电路可以分别向外部用电部件供电,不发生停电的情况下只由第一传输电路向外部用电部件供电,当发生停电的情况下,切换到第二传输电路供电,保证断电时能够继续为外部用电部件提供较长时间的电。
Energy feedback device for elevator
一种电梯用能量反馈装置
12.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B66B Aufzüge , ELEVATORS |
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