Abstract: A power-circuit breaking device, which can easily mount a fuse and has a small number of component and a simple structure. The power-circuit breaking device includes a first connector housing having a pair of circuit terminals connected with a power circuit, and a second connector housing closing the power circuit by fitting with the first connector housing. The second connector housing includes a fuse having a pair of terminals to be connected with the pair of circuit terminals, a housing having a lock arm engaged with a cutout provided at the terminal and a cover an entry opening of a receiving section of the housing. The cover includes a limiter limiting the lock arm to move to disengaging the terminal.

Abstract: An interface card fixing member is disclosed according to the present invention. The interface card fixing member is applicable to a fixing bracket of an electrical device, for fixing an interface card. The interface card fixing member includes a base connectible to the fixing bracket, an elastic frame connected to the base, a fixing portion connected to the elastic frame, a first positioning portion located on the fixing portion, and a supporting board connected to the base, the elastic frame being movable in an elastic deformation direction to have the fixing portion to be interfered with and coupled to the supporting board, and the fixing portion move to a position where the interface card can be unplugged. Therefore, a user can plug and unplug the interface card easily with both hands.