Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DRIVING DEVICE
Document Type and Number:
Japanese Patent JP2010004711
Kind Code:
A
Abstract:

To provide a driving device capable of preventing deterioration in a conductive adhesive while permitting expansion and shrinkage of an electromechanical conversion element.

The driving device 1 is provided with: a piezoelectric element 5; a drive shaft 6 attached on one end of a telescopic direction of the piezoelectric element 5; a lens frame frictionally engaging with the drive shaft 6; an FPC 7 for transmitting a driving signal to the piezoelectric element 5; and a conductive adhesive 8 for fixing and electrically connecting the piezoelectric element 5 to the FPC 7. In the driving device 1, since an insulating adhesive 9 is provided so as to cover the conductive adhesive 8, the conductive adhesive 8 can be prevented from deterioration due to ambient environment. Furthermore, although high conductivity of the adhesive causes a decrease in elasticity of the adhesive, since the conductivity of the insulating adhesive 9 is lower than that of the conductive adhesive 8, the elasticity thereof is high. Thus, even if an adhesive area of the piezoelectric element 5 is increased due to the insulating adhesive 9, the expansion/shrinkage of the piezoelectric element 5 is hardly inhibited.


Inventors:
HIRAYAMA TAKESHI
Application Number:
JP2008163469A
Publication Date:
January 07, 2010
Filing Date:
June 23, 2008
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJINON CORP
International Classes:
H02N2/00
Domestic Patent References:
JPH0767365A1995-03-10
JP2005160180A2005-06-16
JPH11204912A1999-07-30
JP2008048479A2008-02-28
JP2007243066A2007-09-20
JPH0943480A1997-02-14
JP2006333554A2006-12-07
Attorney, Agent or Firm:
長谷川 芳樹
黒木 義樹
柴山 健一
荒井 寿王