Heat dissipation protection device
As shown in Figures 1 and 2, the solar light receiving device also includes a heat dissipation protection device 3 fixed on the back of the solar silicon wafer, which can realize timely heat dissipation, and can also avoid rain erosion, dust, bird droppings and other dirt from accumulating on the irradiated surface. The heat dissipation protection device 3 includes a heat-insulating parasol 33, a small fan group 31 and a heat sink group 32, which are arranged in the order of installation from top to bottom, and adjacent components are separated by a certain gap reserved between adjacent components.
Sunlight tracking device
The sun tracking device uses the principle of balance to track changes in the sun from morning to night. During the tracking process, the force of the entire device is kept in balance by overcoming the damping of the bracket instead of the weight of the bracket itself. The device includes a swing device and a counterweight, and the aforementioned sunlight receiving device is movably supported by the swing device. It is mainly driven by a miniature geared motor 1. According to the structure of the mechanical part, the angle (azimuth tracking angle) that the main shaft and receiver can rotate is α≤±80°. The movement of tracking the apparent height of the sun is mainly driven by the miniature geared motor 2. Considering the wiring problem, the movement angle of the turret and the receiver (height angle tracking angle) β≤±80°. Referring to the previous requirements for the tracking range of the tracking platform, it can be known that whether it is running at a fixed location or running on a moving carrier, the ring gear drive tracking platform can fully track the sun.
The oscillating device is provided with a worm gear oscillating device 421 in an east-west direction and a worm gear oscillating device 422 in a north-south direction. The east-west worm gear swing device 421 can control the sunlight receiving device to swing east-west, and the north-south worm gear swing device 422 can control the sunlight receiving device to swing north-south.
The counterweight is provided with an east-west counterweight 411 and a north-south counterweight 412. The east-west counterweight 411 is fixed on the solar light receiving device, parallel or nearly parallel to the central axis of the solar light receiving device, and located on or close to the center line L of the pendulum axis of the east-west swing device 421, and it is installed separately from the sunlight receiving device on both sides of the swing axis of the east-west swing device 421 to balance the weight of the sunlight receiving device when tracking the sun from east to west. The counterweight 412 in the north-south direction, as shown in Figure 3, is designed on the north-south direction turbine oscillating device 422, both of which are perpendicular to the pendulum axis D of the north-south direction oscillating device 422 and the east-west direction oscillating device 421, and it is installed separately from the sunlight receiving device on both sides of the swing axis D of the swing device 422 in the north-south direction to balance the mass of the sunlight receiving device when tracking the sun from north to south, as shown in Figure 4.
As shown in Figure 5, the counterweight 412 in the north-south direction is provided with a regulating device 43, which can control the counterweight 412 in the north-south direction to be close to or away from the sunlight receiving device. The east-west counterweight 411 is provided with a regulating device 44, which can control the east-west counterweight 411 to approach or stay away from the sunlight receiving device. The tracking device can be used separately for east-west tracking or north-south tracking. The counterweight exerts a small force on the solar light receiving device to realize the swing around the fulcrum or axis, thereby eliminating the huge torsion force when the solar light receiving device is activated and braked many times. That is, the transmission gears of the swing mechanism do not need to bear the load of the sunlight receiving device, and only need to overcome the damping between the rotating shafts to ensure that the gears are not easily damaged.