(19)
(11) EP 0 703 182 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.12.1996 Bulletin 1996/49

(43) Date of publication A2:
27.03.1996 Bulletin 1996/13

(21) Application number: 95114463.3

(22) Date of filing: 14.09.1995
(51) International Patent Classification (IPC)6: B66B 11/00, B66B 5/02
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 16.09.1994 FI 944295

(71) Applicant: KONE OY
SF-00330 Helsinki (FI)

(72) Inventors:
  • Kähkipuro, Matti
    FIN-05800 Hyvinkää (FI)
  • Jahkonen, Pekka
    FIN-05900 Hyvinkää (FI)

(74) Representative: Zipse + Habersack 
Kemnatenstrasse 49
D-80639 München
D-80639 München (DE)

   


(54) Energy saving device for an elevator


(57) The invention relates to a system for the supply of energy in an elevator, in which system the elevator motor (1) is fed by a frequency converter (15) comprising a rectifier (3), an inverter bridge (2) and an intermediate circuit (4,10,11) between them. A direct voltage converter (5) is used to convert a large intermediate voltage to a level suitable for a battery (6) and the elevator's braking energy is supplied into the battery (6). The battery (6) is connected to supply power to other elevator equipment (7,8,9) except the drive motor (1).






Search report