A solar panel rail for mounting a photovoltaic module frame thereto is provided and has a rail body configured to for attachment of a rail bracket, an indexing flange located on the rail body and configured to box and maintain a module frame position along a short-side direction of the module frame, a tab located on the rail body and configured to hold the module in place along a long-side direction of the module frame, wherein the indexing flange and tab are configured to provide a predetermined locked in installation position of the module frame during installation thereof.

A mounting bracket (320) for trapezoidal rib profiles is disclosed. This mounting bracket (320) includes an upper section (330) and a lower section (350). A first leg (352a) in a second leg (352b) extend from a lower portion of the upper section (330) in diverging relation to one another. Each of these legs (352a, 352b) is deflectable through a certain range of motion to accommodate installation of the mounting bracket (320) on a variety of different trapezoidal rib profiles.

A drive arrangement has a rotary driveshaft (1) bearing a drive finger (10) parallel and offset in the radial direction in relation to the axis of rotation and a locking device (11) offset radially with respect to the finger (10). The drive arrangement also has a coupling unit with a device in the shape of an arc which bears the drive or locking recesses disposed in alteration so as to enable relative rotation/prevent rotation between the unit and the driveshaft (1) when the finger (10) engages in one of the drive/locking recesses. The locking device (11) and the finger (10) are offset along the axis of rotation, and the coupling device has a part bearing the locking recesses and a part bearing the drive recesses, the two parts being positioned parallel and offset along the axis of rotation so as to be able to interact with the locking device (11) or the finger (10), respectively.

In various embodiments, a stabilization assembly may comprise a shaft, a foot, a snap plate and a nut. The foot may be operatively coupled to the shaft. The snap plate may be configured to surround and retain the shaft. The nut may be installable on the shaft and engagable to raise and lower a foot. The stabilization assembly may be installed in a solar panel coupling. The foot may be driven to engagement with a roof surface in response to the coupling being installed on the roof.

A photovoltaic cleaning device and a windproof device thereof are provided according to the present application. The windproof device of the photovoltaic cleaning device includes a locking bracket, a locking arm, and a drive device configured to drive the locking arm to move relative to the locking bracket. The locking arm has a locking position of extending into a restricting position of the locking bracket, and a cleaning working position of exiting the restricting position of the locking bracket. During the mounting of the photovoltaic cleaning device, one of the locking arm and the locking bracket is mounted to the cleaning module, and the other is mounted to the supporting frame of the photovoltaic module.

In various embodiments, a stabilization assembly may comprise a shaft, a foot, a snap plate and a nut. The foot may be operatively coupled to the shaft. The snap plate may be configured to surround and retain the shaft. The nut may be installable on the shaft and engagable to raise and lower a foot. The stabilization assembly may be installed in a solar panel coupling. The foot may be driven to engagement with a roof surface in response to the coupling being installed on the roof.

A monolithic trim piece is used for covering an opening between the edge of a photovoltaic module and the roof. The trim piece, with a curved front face, is attached to the underside of the photovoltaic module(s) using a standardized end-clamp (for a single module) or a standard mid-clamp (for a pair of modules). A threaded fastener with a T-shaped head can be used in a recessed channel located underneath an attachment flange of the trim piece.

A mounting bracket (320) for trapezoidal rib profiles is disclosed. This mounting bracket (320) includes an upper section (330) and a lower section (350). A first leg (352a) in a second leg (352b) extend from a lower portion of the upper section (330) in diverging relation to one another. Each of these legs (352a, 352b) is deflectable through a certain range of motion to accommodate installation of the mounting bracket (320) on a variety of different trapezoidal rib profiles.

A mounting assembly for mounting a solar panel to a surface includes a mounting base. The mounting base supports a fastener. A module mount has a module mount sidewall supporting the fastener. The module mount is movable with respect to the fastener when the fastener is received through the module mount opening. A first distance between a bottom surface of the module mount and a top surface of the mounting base is adjustable. A mounting clamp has a mounting clamp sidewall defining a mounting clamp opening through which the fastener is received. The mounting clamp is movable with respect to the fastener when the fastener is received through the mounting clamp opening such that a second distance between a bottom surface of the mounting clamp and a top surface of the module mount is adjustable. The solar panel is mounted between the mounting clamp and the module mount.

Tracking modules are effectively provided that can be arranged as systems for positioning devices, such as reflectors. A preferred reflector is small and light in comparison to prior art reflectors so that components can be utilized within reflector construction and support structure that are sufficiently stiff to accurately hold a reflector in place under expected operational drive-torque, gravity and wind loads. At the same time, a single person can install a reflector, easily overcoming a retention mechanism spring force so as to positively engage a reflector in position. This is achieved without the need for any tools, through a combination of a retention mechanism and a spring feature design. Arrangements of tracking modules are included for easier manufacture, transport of systems and installment.