| 摘要 |
#CMT# #/CMT# A circuit board (60) has an end section that is held in housing (80) with a card edge connector that is inserted into a groove (31). A rotatable element (51) is rotated until the projections (52) of a rotating structure rotatably held within the housing, are contacted. Terminal projections (42a,42b) of rotatable element are rotated towards inner surfaces (31a,31b) of groove and to circuit board, so that contact portions (41a,41b) are disconnected from circuit board, and are contacted with electrodes of end section in mutually different rotation directions. #CMT#USE : #/CMT# Electronic device. #CMT#ADVANTAGE : #/CMT# The damages and unexpected deformation of the contact portions of the terminals can be reduced, since the contact portions of the terminals are disconnected from the circuit board, if the end section of circuit board is inserted into or removed from the groove. The electrical reliability of the electronic device can be enhanced. The resistance between the rotatable element and the terminals can be reduced, since the card edge connector is removed easily from the circuit board. The positioning allowance of the circuit board in preset direction can be increased. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows the schematic view explaining the process for inserting circuit board into groove of housing of electronic device. 31 : Groove 31a,31b : Inner surfaces of groove 41a,41b : Contact portions 42a,42b : Terminal projections 51 : Rotatable element 52 : Projection 60 : Circuit board 80 : Circuit board. |
