Patent ID: 7021834

Claim:
A package module comprising: a module case for accommodating a circuit board; and an adapter case for attaching to the module case and for connecting to an external connector; wherein the adapter case includes: sides with no openings; a first opening defined by the sides at one end of the adapter case for receiving the external connector; and a second opening defined by the sides at the other end of the adapter case for forming a connection hole for attaching to the module case; a fit-receiving portion is mounted to a top of the adapter case adjacent to the second opening such that a fit-receiving opening faces in the direction toward a bottom of the adapter case; the module case includes: a fit projection to be fit into the fit-receiving portion; a projecting arm, for insertion into the second opening; a pivot-point part that comes into contact with the adapter case and that functions as a pivot point of the module case when the projecting arm is inserted into the adapter case up to a specified position through the second opening; and a fixing member mounted on a tip of the arm for fixing the external connector inserted into the adapter case; the vertical length between a bottom of the fit-receiving portion and a bottom of the second opening is smaller than the vertical length between a top of the fit projection and a bottom of the module case; the fit projection is arranged to oppose the fit-receiving opening of the fit-receiving portion by inserting the projecting arm at an incline relative to the bottom of the adapter case through the second opening up to the specified position and then pivoting the module case about the pivot-point part; and the fit projection is fit into the fit-receiving portion by arranging the fit projection of the module case and the fit-receiving portion of the adapter case in an opposed manner and then by moving the module case upward relative to the adapter case so that the adapter case is attached to the module case.