Global Patent Index - EP 2020046 A1

EP 2020046 A1 2009-02-04 - PIEZOACTUATOR

Title (en)

PIEZOACTUATOR

Title (de)

PIEZOAKTOR

Title (fr)

ACTIVATEUR PIÉZOÉLECTRIQUE

Publication

EP 2020046 A1 (DE)

Application

EP 07729044 A

Priority

  • EP 2007054592 W
  • DE 102006022997 A

Abstract (en)

[origin: WO2007131965A1] A piezoactuator (1) comprising a piezoelement (2), comprising a multilayer construction of piezolayers, is proposed, wherein internal electrodes arranged between the piezolayers, in the direction of the layer construction of the piezoelement (2), alternately have a differing polarity of an electrical voltage applied to them. An actuator base (3) and an actuator head (4) and an insulation medium (5, 6) surrounding at least the piezolayers of the piezoelement are present. The surface of the piezoelement (2) is provided with a first electrical insulation layer and the piezoactuator (1) has at least one layer of a metallic film (5) wound around it at least in the region of the piezoelement (2). A layer of a plastic (6) is applied to the film (5) and in a manner overlying the connecting locations with respect to the actuator head (4) and with respect to the actuator base (3).

IPC 8 full level (invention and additional information)

H01L 41/053 (2006.01)

CPC (invention and additional information)

H01L 41/0533 (2013.01)

Citation (search report)

See references of WO 2007131965A1

Designated contracting state (EPC)

DE ES FR GR IT

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

DE 102006022997 A1 20071122; EP 2020046 A1 20090204; JP 2009538106 A 20091029; US 2009102320 A1 20090423; WO 2007131965 A1 20071122

INPADOC legal status


2010-08-11 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20100213

2009-11-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20091002

2009-06-10 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE ES FR GR IT

2009-02-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081217

2009-02-04 [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

2009-02-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL BA HR MK RS