A solar-power-generation-type sliding window assembly for maintaining an electrical connection between a solar cellmounted to a sliding window and a battery charged by the power generated by the solar cell during normal operation regardless of the position of the sliding window is provided. The solar-power-generation-type sliding window assembly includes a sliding window that has a solar cell and configured to be opened or closed via sliding thereof. A window frame is fixed to an opening in a wall and supports the sliding window. A plurality of rollers are rotatably disposed in the sliding window and supports the movement of the sliding window inside the window frame. Additionally, a connection terminal is disposed on a selected roller among the rollers and electrically interconnects an output terminal of the solar cell disposed on the sliding window and a frame terminal disposed on the window frame.

An intelligent window allowing ventilation has an outer frame, a sliding frame, an upper locking rod, a lower locking rod, a driving module, a power supply module, and a switch assembly. The sliding frame is slidably mounted in the outer frame. The switch assembly controls the driving module to selectively drive the upper locking rod and the lower locking rod to two locking positions respectively, two ventilation positions respectively or two unlocking positions respectively. Since no handle is needed, an appearance of the intelligent window is neat and scenery outside the intelligent window would not be sheltered. In addition, by actuating the switch module to electrically drive the upper locking rod and the lower locking rod, a user is able to switch the intelligent window to a locked state, a ventilation state or a unlocked state. It is labor-saving and simple in operation.

A power transfer assembly includes a window balance assembly, a pivot bar, and an electrically conductive pathway. The window balance assembly includes a first portion configured to be fixed in place and a second portion configured to be movable relative to the first portion. The pivot bar is conductively coupled to the second portion of the window balance assembly. And, the electrically conductive pathway extends between the window balance assembly and the pivot bar.