Power Plug Locking Sleeve Adapter
Publication Date: 2010-Aug-31
The IP.com Prior Art Database
Described is a power plug locking sleeve adapter.
The power plug locking sleeve adapter is used to support insertion of the commercial UTG plug into the power distribution unit (PDU) UTG connector. Current, commercially available offering proves inadequate to engage and lock plug firmly where access to the engagement area is small or restricted by mechanical components or cables. In such situations, semi-blind engagement may not be even possible because of the restricted access to the frontally located locking sleeve. Complete engagement requires good alignment and ~160 degree rotation of the plug locking sleeve until fully locked. When locking sleeve is difficult to access, insertion process becomes incomplete. Incomplete lock will result in loose and problematic connection, improper load transfer from the heavy cable, and connector damage. This issue is much more pronounced when access to the rotational lock mechanism is limited. Manufacturing struggled with this problem since UTG connectors were introduced a few years ago. This tool provided some relief on the manufacturing floor, but the tool does not work well where access to the UTG connector is blind or when connector is in a small restricted space. In addition, the tool is not available at the customer location, it is quite large to carry by the customer engineer, and it requires good practical skills for successful plug installation. Even after improvements, the tool didn't resolve the program challenges. a modified tool slipped out in mid rotation, and it was difficult to re-engage back. Sometimes, the tool was kicked out by the plastic guides located under the tool engagement holes. Other times, two set screws locked into the holes, and it was challenging to disengage the tool. With space and access being more and more restricted, the use of existing or modified tools proves inadequate for field or customer application.
A design was needed which addresses limited and obstructed space issues, allows for proper alignment, and ensures 100% locked connection. There was a need fo...