公开(公告)号：EP0160533B1

公开(公告)日：1990-01-24

申请号：EP85302953.6

申请日：1985-04-26

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Yaeger, John Richard ,  Morgan, Robert King

IPC分类号： H01H37/32

CPC分类号： G11B5/4833 ,  F03G7/065 ,  H01H37/323

公开(公告)号：EP0160533A2

公开(公告)日：1985-11-06

申请号：EP85302953.6

申请日：1985-04-26

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Yaeger, John Richard ,  Morgan, Robert King

IPC分类号： H01H37/32

CPC分类号： G11B5/4833 ,  F03G7/065 ,  H01H37/323

摘要： Disclosed is a shape memory effect actuator. The actuator comprises a biasing means which is normally biased in a first position and a shape memory alloy actuator element cooperatively engaged with the biasing means. The actuator element in a first deactivated condition is biased in the first position by the biasing means. In a second deactivated condition, the actuator element biases and retains the biasing means in a second position. The actuator element in an activated condition biases the biasing means in the second position. Also disclosed is a method of assembling an actuator and a cooperating apparatus and a method of operating the actuator.

公开(公告)号：EP0151514A2

公开(公告)日：1985-08-14

申请号：EP85300200.4

申请日：1985-01-11

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Morgan, Robert King ,  Yaeger, John Richard

IPC分类号： H01H61/01

CPC分类号： H01H61/0107 ,  H01H2061/0115

摘要： A self-regulated actuator is disclosed having a shape-memory element which is heated preferably by passing electrical current therethrough and having a reset mechanism including a circuit-breaking mechanism. The shape memory element provides the force to retract the actuator when heated. The reset mechanism utilizes a spring-biased latch plunger that resets the actuator as soon as it has retracted a specific distance. The reset mechanism also acts as a circuit breaking mechanism to electrically interrupt current heating the shape-memory element. The reset mechanism provides near instant reset time and overcomes the longer wait period otherwise associated with the natural cooling of the shape memory element. The reset mechanism prevents overheating of the shape-memory element and precludes the necessity for additional hardware to interrupt the circuit after actuation is completed. Also discussed is a self-protection means that protects the shape-memory element from deliberate and accidental overloads and to accommodate the extra motion required for high-cycle design life.

摘要翻译： 公开了一种自调节致动器，其具有形状记忆元件，其优选地通过使电流通过并且具有包括断路机构的复位机构被加热。 当加热时，形状记忆元件提供退回致动器的力。 复位机构使用弹簧偏置的闩锁柱塞，一旦缩回了特定的距离，就会使执行器复位。 复位机构还用作电路断开形状记忆元件的电流加热的断路机构。 复位机构提供近即时复位时间，并克服了较长的等待时间，否则与形状记忆元件的自然冷却相关。 复位机构防止形状记忆元件的过热，并且排除在完成驱动之后需要额外的硬件来中断电路。 还讨论了一种自我保护手段，保护形状记忆元件免受有意和意外的过载，并适应高周期设计寿命所需的额外运动。

公开(公告)号：EP0122057A2

公开(公告)日：1984-10-17

申请号：EP84301672.6

申请日：1984-03-13

申请人： RAYCHEM CORPORATION (a Delaware corporation)

发明人： Morgan, Robert King ,  Yaeger, John Richard

IPC分类号： H01H37/46

CPC分类号： H01H61/0107 ,  H01H2061/0115

摘要： A shape-memory-effect actuator is provided having a shape-memory-alloy spring and a compensator spring. The alloy spring is operatively connected to a concentrically-mounted compensator spring by the use of a protective support housing which surrounds the alloy spring. The actuator includes a shape-memory-alloy spring and a compensator spring that regulates the operating conditions of the shape-memory-alloy spring to a chosen corresponding memory relaxation curve. The memory relaxation curve defines the actuator's operating stress, stroke and life.