Abstract: A heat sink fastener includes a heat sink assembly, a first stand, a second stand, a fastening plate, a fastening member, and a movable bar. The first stand includes a fastening portion. The second stand includes a restriction portion. The fastening plate is connected to the heat sink assembly. The fastening plate includes a hook portion, an extension portion, and a through hole. The hook portion is engaged with the fastening portion. The extension portion contacts with the restriction portion. The fastening member is inserted through the through hole and secured the second stand. The fastening member includes a bolt and a screw nail. The screw nail is provided with a pushing portion. The movable bar is connected to the second stand. The movable bar includes a pivot shaft, a restriction end restricting the pushing portion from movement, and a release end releasing the pushing portion to move.

Abstract: A foldable supporting bracket for a portable electronic apparatus includes a supporting arm, a holding element, and two load-bearing bars. The supporting arm has a first pivot shaft at one terminal thereof and the holding element has a second pivot shaft at one terminal thereof. The two load-bearing bars are separated to each other and pivotally arranged between the first pivot shaft and the second pivot shaft to form a hollow containing region. The supporting arm and the holding element are pivotally connected to the two load-bearing bars via the first pivot shaft and the second pivot shat, respectively, so that the supporting arm and the holding element are flipped toward the hollow containing region. Accordingly, the supporting arm and the holding element are folded in the hollow containing region and then levelly arranged to the two load-bearing bars, thus reducing occupied space and increasing carry convenience.