LAMINATED PIEZOELECTRIC ELEMENT, AND INJECTION DEVICE AND FUEL-INJECTION SYSTEM CONTAINING SAID LAMINATED PIEZOELECTRIC ELEMENT

WIPO Patent Application WO/2015/114866

A1

[Problem] To provide a laminated piezoelectric element that minimizes detachment of an external electrode plate and crack formation in a conductive joining material. Also, to provide an injection device and a fuel-injection system containing said laminated piezoelectric element. [Solution] This laminated piezoelectric element (1) comprises the following: a laminate (4) that has an active section (4a) comprising piezoelectric-body layers (2) and internal-electrode layers (3) laminated together and inactive sections (4b) located outside the active section (4a) in the lamination direction; a conductive joining material (5) provided on a side surface of the laminate (4) so as to run parallel to the lamination direction; and an external electrode plate (6) that is mounted to said side surface with the conductive joining material (5) interposed therebetween. One end of the external electrode plate (6) extends past the conductive joining material (5) in the lamination direction, and the external electrode plate (6) has, on said end, an area that is connected to an external circuit. The conductive joining material (5) has, on the end thereof corresponding to the aforementioned one end of the external electrode plate (6), a region (51) that is wider than other regions of the conductive joining material (5).

KATO TAKESHI (JP)

PCT/JP2014/072752

August 06, 2015

August 29, 2014

Click for automatic bibliography generation  

KYOCERA CORP (JP)

H01L41/047; F02M51/06; H01L41/083; H01L41/09

JP2008010742A	2008-01-17
JPS63118252U	1988-07-30
JP2002252386A	2002-09-06
JP2008010742A	2008-01-17

See also references of EP 3101701A4

View/Download PDF      PDF Help

Previous Patent: MIRROR DISPLAY

Next Patent: DRIVE UNIT, OPTICAL UNIT, IMAGE PICKUP APPARATUS, AND ENDOSCOPE