Batteries: thermoelectric and photoelectric – Photoelectric – Panel or array
Patent
1996-01-29
1997-05-27
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Panel or array
2502034, 353 3, 126602, 126603, 126605, 126608, H01L 31042
Patent
active
056328230
ABSTRACT:
The solar tracking system maintains a solar collector with its responsive surface normal to the sun rays. It includes a shaft supported for rotation about an axis parallel to the north-south axis of the earth, a stepper motor for intermittent rotation of the shaft at a mean rate equal to the earth's rate of rotation. A solar collector securing assembly is located on one side of the shaft and includes a bracket, collars securing the bracket to the shaft, a support for fixing a solar collector pivoted to the bracket about a pivotal axis transverse to the shaft to vary the inclination of the support relative to the shaft and stays between the support and the bracket to maintain the support at an adjusted inclination. A counter-balancing system includes an arm secured to the shaft and extending normal thereto and away from the assembly and a weight adjustably mounted on the shaft. This system counter-balances the assembly and a solar collector fixed thereto irrespective of the rotational position of the assembly about the shaft and the inclination of the support relative to the shaft. Preferably, two solar collectors are mounted on the shaft, one being an array of solar cells feeding a battery which in turn feeds a stepper motor driving the shaft through a step down gear box. The sun shadow of a pointer normal to the solar collector panel serves to properly align the panel. Alternately, the current generated by the solar cells is measured and its maximum indicates that the solar panel is properly aligned with the sun.
REFERENCES:
patent: 3070699 (1962-12-01), Lehmann et al.
patent: 4172739 (1979-10-01), Tassen
patent: 4440150 (1984-04-01), Kaehler
patent: 4476853 (1984-10-01), Arbogast
patent: 4628142 (1986-12-01), Hashizume
patent: 4832001 (1989-05-01), Baer
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