公开(公告)号：US20180311519A1

公开(公告)日：2018-11-01

申请号：US15965413

申请日：2018-04-27

Applicant: Johnson Controls Technology Company

Inventor： Russell T. Jenks ,  Kyle M. Bero ,  Myles S. McCaleb ,  Nicholas P. Prato ,  Stephanie P. Lynn ,  Kent S. Maune

IPC: A62C2/24 ,  E05F1/00

Abstract: A fire damper actuation system in an HVAC system includes a damper system and an actuator system. The damper system includes damper blades rotatable between an open configuration and a closed configuration, a crank arm assembly configured to drive the damper blades, a spring assembly configured to be held in a loaded condition when the damper blades are in the open configuration, a temperature-activated fusible link, and a fusible link arm coupling the temperature-activated fusible link to the crank arm assembly. The actuator system includes a motor and a drive device. The drive device is coupled to the crank arm assembly and the temperature-activated fusible link. Operation of the drive device by the motor between a first end stop location and a second end stop location simultaneously rotates the crank arm assembly and the temperature-activated fusible link to complete a test inspection procedure.

公开(公告)号：US11273335B2

公开(公告)日：2022-03-15

申请号：US15965413

申请日：2018-04-27

Applicant: Johnson Controls Technology Company

Inventor： Russell T. Jenks ,  Kyle M. Bero ,  Myles S. McCaleb ,  Nicholas P. Prato ,  Stephanie P. Lynn ,  Kent S. Maune

IPC: A62C2/24 ,  E05F1/00 ,  A62C2/14 ,  E05F15/40 ,  A62C2/06

Abstract: A fire damper actuation system in an HVAC system includes a damper system and an actuator system. The damper system includes damper blades rotatable between an open configuration and a closed configuration, a crank arm assembly configured to drive the damper blades, a spring assembly configured to be held in a loaded condition when the damper blades are in the open configuration, a temperature-activated fusible link, and a fusible link arm coupling the temperature-activated fusible link to the crank arm assembly. The actuator system includes a motor and a drive device. The drive device is coupled to the crank arm assembly and the temperature-activated fusible link. Operation of the drive device by the motor between a first end stop location and a second end stop location simultaneously rotates the crank arm assembly and the temperature-activated fusible link to complete a test inspection procedure.