| 摘要 |
A piezoelectric actuator (1) is proposed, in which a piezoelectric element (2) is present for subjecting an actuating element to a tensile or compressive stress. A sleeve (4; 20) is secured to a foot part (3), to which the piezoelectric element (2) is secured and by way of which the piezoelectric element (2) is kept centered in a housing (8) under mechanical prestressing, and this sleeve surrounds the piezoelectric element (2) in such a way as to stabilize it mechanically, at least in partial regions that are electrically insulated from the piezoelectric element. Between the sleeve (4; 20) and the piezoelectric element (2), a heat-conducting elastomer (6) is placed, and the sleeve (4; 20) comprises a heat-conducting material that is deformable within predetermined limits.
|
