PACKAGE ASSEMBLY

A package assembly (1, 8, 9) includes a main body (2, 80, 90), a power module (4) and replaceable top cover (3). The main body (2, 80, 90) has a hollow part (20). The power module (4) is disposed within a hollow part (20) of the main body (2, 80, 90) and located beside the bottom part of the main body (2, 80, 90). At least one first pin (41) is disposed on a surface (40) of the power module (4). The at least one first pin (41) is accommodated within the hollow part (20) of the main body (2, 80, 90) and partially protruded out of a first open end of the hollow part (20) near a top part of the main body (2, 80, 90). The top cover (3) is disposed in the hollow part (20) of the main body (2, 80, 90), and includes at least one first opening (30) corresponding to the at least one first pin (41). The at least one first pin (41) is penetrated through the corresponding first opening (30) and exposed outside the first open end of the hollow part (20).