Global Patent Index - EP 2021270 A1

EP 2021270 A1 2009-02-11 - CIRCUIT DEVICE FOR A BRAKED MOTOR

Title (en)

CIRCUIT DEVICE FOR A BRAKED MOTOR

Title (de)

SCHALTUNGSVORRICHTUNG FÜR GEBREMSTEN MOTOR

Title (fr)

DISPOSITIF DE CIRCUIT POUR MOTEUR FREINÉ

Publication

EP 2021270 A1 (EN)

Application

EP 07748188 A

Priority

  • SE 2007000524 W
  • SE 0601212 A

Abstract (en)

[origin: WO2007139477A1] The invention relates to a circuit device for a braked motor (M) forming part of a lifting installation, whereby the circuit device comprises three supply voltage lines (R, S, T), contactors (Kl, K2 ) arranged in each supply voltage line, at least one frequency converter (F) and three output voltages (u, v, w) connected to the motor (M), whereby the contactors (Kl, K2 ) are connected in such a way that they can break the voltage to the frequency converter (F). A distinguishing feature of the circuit device according to the present invention is that for at least two of the supply voltage lines (R, S, T) to the frequency converter (F) the contactors (Kl, K2) are bypassed by at least one resistor (R) belonging to each supply voltage line (R, S, T), the resistors (R) taking the form of safety resistances.

IPC 8 full level (invention and additional information)

B66B 1/28 (2006.01); B66B 1/30 (2006.01); H02H 7/08 (2006.01); H02P 23/03 (2006.01)

CPC (invention and additional information)

H02P 23/03 (2013.01); B66B 1/308 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

WO 2007139477 A1 20071206; EP 2021270 A1 20090211; EP 2021270 A4 20131030; SE 0601212 L 20071202; SE 530008 C2 20080205

INPADOC legal status


2014-10-22 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20140429

2013-10-30 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20131001

2013-10-30 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: H02H 7/08 20060101ALI20130925BHEP

2013-10-30 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: H02P 23/03 20060101ALI20130925BHEP

2013-10-30 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: B66B 1/28 20060101AFI20130925BHEP

2013-10-30 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: B66B 1/30 20060101ALI20130925BHEP

2012-08-08 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2009-02-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081201

2009-02-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS