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US 7,115,851 B2Granted
Heliostat device
OwnerYaoming Zhanginventor
Life of this patent
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Abstract
Heliostat devices are disclosed. A disclosed heliostat device comprises planar reflectors and their frame, an azimuth angle adjusting mechanism and an altitudinal angle adjusting mechanism, and a sunlight tracking sensor. This device can perform sun tracking and accurate projection in fixed direction, via the directed sensor mounted in the fixed projection direction to form multi-stage control sensors.
Claims12
A heliostat device comprising:
- planar reflectors and a frame,
- an azimuth angle adjusting mechanism,
- an altitudinal angle adjusting mechanism,
- a sunlight tracking sensor,
- the azimuth angle adjusting mechanism comprising a vertical shaft and a sleeve for the vertical shaft, a bottom support rotating around a central axial line (ZZ′) of the vertical shaft,
- the altitudinal angle adjusting mechanism comprising at least one transversal main turning shaft parallel with the planar reflectors, the intersecting point (O1) in space of the vertical shaft axial line and the transversal main turning shaft axial line or the setting point (O2) on the shortest connecting line between the two axial lines coincides with the center of one of the planar reflectors, and
- a directed sensor with a light sensing surface facing the planar reflector, a central axial line of the directed sensor coincides or is parallel with the connecting line (O1O′) or (O2O′) of the intersecting point (O1) or setting point (O2) with the center (O′) of the directed projection area.
4 more elements
Dependencies are inferred from the claim text.