| 摘要 |
The invention relates to a piezo actuator (1), which is provided with a piezo element (2) for impinging an actuating element with a tensile or compressive force. A sheath (4, 20) is attached to a base part (3), to which the piezo element (2) is fixed and using which said piezo element (2) is maintained in the centre of a housing (8) by a mechanical pre-tension. Said sheath surrounds the piezo element (2), at least in parts, to mechanically stabilise said element and is electrically insulated from the latter. A thermally conductive elastomer (6) is placed between the sheath (4, 20) and the piezo element (2) and said sheath (4, 20) consists of a thermally conductive material which is deformable within predetermined limits.
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