TRANSFORMER AND POWER SOURCE DEVICE

摘要

Opening portions (5a and 6a) through which a base (2c) extends to an outside of one side of a core part which is formed by stacking a first core (5) and a second core (6) are formed in the first core (5) and the second core (6) in a transformer (1), and, in the base (2c), a portion which is closer to one region of an exposed core portion A (first region) and an exposed core portion B (second region) is notched, so that the transformer which secures an insulation property and is capable of realizing further size reduction is provided.

主权项

1. A transformer, comprising:
a bobbin body in which a base and a hollow winding drum provided on the base are integrated; and a first core and a second core which are separately inserted into both ends of a hollow hole of the winding drum so as to hold the base therebetween, wherein a first opening portion through which the base extends to an outside of one side of a core part which is formed by stacking the first core and the second core is formed in the first core and the second core, and a notched part which is closer to one region of a first region and a second region in each of which an end part of the base and the first opening portion intersect is formed in a portion of the base, which extends from the first opening portion.