Abstract: An orientating and installing jig for orientating a heat-dissipating unit (or a workpiece) to fix on a heat-generating device (or a target device) above a circuit board (or a supporting baseplate), which includes a carrying board formed with at least one assembling opening, a plurality of fixing posts and a pair of arrest-orientating modules oppositely arranged at two sides of the assembling opening. The assembling opening is shaped correspondingly to the shape of the heat-dissipating unit. The fixing posts are disposed at a bottom surface of the carrying board for fixing the carrying board above the circuit board. Each arrest-orientating module includes an arresting barrier. The arresting barrier is rotatably disposed at a suspending position of suspending the workpiece on the carrying board, and a releasing position of allowing the workpiece to pass through the assembling opening, so that the workpiece is put on the target device.

Abstract: An orientating and installing jig for orientating a heat-dissipating unit (or a workpiece) to fix on a heat-generating device (or a target device) above a circuit board (or a supporting baseplate), which includes a carrying board formed with at least one assembling opening, a plurality of fixing posts and a pair of arrest-orientating modules oppositely arranged at two sides of the assembling opening. The assembling opening is shaped correspondingly to the shape of the heat-dissipating unit. The fixing posts are disposed at a bottom surface of the carrying board for fixing the carrying board above the circuit board. Each arrest-orientating module includes an arresting barrier. The arresting barrier is rotatably disposed at a suspending position of suspending the workpiece on the carrying board, and a releasing position of allowing the workpiece to pass through the assembling opening, so that the workpiece is put on the target device.