Actuating drive for use in electrical engineering, has tractive unit running in longitudinal direction about piezoelectric actuator, and pretensioning unit for tensile pretensioning of tractive unit

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This invention is an actuating drive used in electrical engineering that incorporates a piezoelectric actuator. It features a tractive unit, which wraps around the actuator in the longitudinal direction, and is held under tension with the help of pretensioning units designed as leaf springs. These components work together to enhance the actuator's performance and mechanical durability.

Use CasesContent extracted from patent full text and abstract with AI.

• Precision control of mechanical components in electrical or electronic devices
• Miniaturized movement or positioning systems, such as optical switches or micro-actuators
• High-reliability actuation in industrial automation equipment
• Medical devices requiring accurate and repeatable motion
• Robotic and automation systems requiring long-life, low-wear actuators

BenefitsContent extracted from patent full text and abstract with AI.

• Provides improved tensile pretensioning for the tractive unit, resulting in more reliable actuator performance
• Reduces mechanical wear by optimizing how tension is applied
• Enhances the lifespan and durability of piezoelectric-based actuators
• Enables precise and repeatable motion control suitable for sensitive applications
• Compact and efficient design for integration in various electrical engineering applications

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Patent Abstract

The drive has an piezoelectric actuator (1) with head pieces (3) arranged at its ends, and a tractive unit (2) running in the longitudinal direction about the actuator, where the tractive unit tensions the head pieces. A pretensioning unit (4) is provided for tensile pretensioning of the tractive unit, and is designed as leaf springs. The springs are arranged on both sides of actuator and along an inner surface of the tractive unit.