Patent ID: 6462975
Filing Date: 2002-10-08
Classification: H01F

Abstract:
A foldable transformer comprising:an insulative enclosure defining a storage cavity and a window in communication with a lower portion of the cavity; a plug assembly having an insulative rod, two inserting pins fixed to the rod, two metal ears fixed at opposite ends of the rod and electrically connecting with the inserting pins respectively, and two spring pins, each spring pin having a first end engaging with a corresponding ear, a second end pressed by the enclosure to engage with a corresponding ear, and a bent portion being adapted to be soldered to an electrical wire; and a locating assembly fixed to the enclosure, the locating assembly defining a pair of slots for extension of the bent portions of the spring pins therethrough, the locating assembly further comprising a cam engaging with the rod when the plug assembly is disposed at an unfolded position in which the inserting pins protrude out from the storage cavity, and a pair of holding blocks located below the cam and engaging with the rod when the plug assembly is moved to a folded position in which the inserting pins are accommodated in the storage cavity.