ELECTRICALLY CONTROLLED SWITCHING DEVICE INCLUDING SHAPE MEMORY ALLOY ELEMENT

• Main Authors: BROADWELL JAMES WALTER, MCCORMICK JAMES MICHAEL, GEIER DAVID MICHAEL, MILLS PATRICK WELLINGTON
• Format: Patent
• Language: Chinese; English
• Published: 02.01.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

An electrically controlled switching device (10) includes a support (12), a first contact (16) coupled to the support (12), a second contact (18) coupled to the support (12), an SMA element (20) operably connected with the second contact (18), a sensor (22) positioned on or adjacent to the SMA element (20), and a controller (24) in communication with the sensor (22). The SMA element (20) is configured to transform between a first shape and a different second shape responsive to an electrical pulse heating the SMA element (20) to a transformation temperature. The sensor (22) is configured to detect a detected temperature of the SMA element (20). The controller (24) is configured to control the electrical pulse heating the SMA element (20). The controller (24) receives signals from the sensor (22) indicative of the detected temperature of the SMA element (20). 种电控开关装置(10)，包括支撑件(12)、与所述支撑件(12)相连的第接触器(16)、与所述支撑件(12)相连的第二接触器(18)、可操作地与所述第二接触器(18)相连的SMA元件(20)、位于该SMA元件(20)上或与该SMA元件(20)相邻的传感器(22)、与所述传感器(22)联通的控制器(24)。