US4786795A - Sun Tracking Device Floating Upon Liquid Surface - Google Patents > 자유게시판

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This kind of system is disclosed in Japanese Patent Laid Open Publication No. 58-193510, among other sources. It's an extra object of the current invention to supply such a sun tracking device can scale back the drive vitality requirements for driving the rotatable table to an extremely low level, and might assist and drive the rotatable desk with a simple structure. FIGS. 4(a) to 4(c) are illustrative drawings for describing the sun monitoring action of the primary most popular embodiment solar tracking device. FIG. 5 is a aspect view thereof. FIGS. 6(a) to 6(c) are plan view for illustrating the solar monitoring action of the second most well-liked embodiment solar tracking device. FIG. Eight is a plan view thereof. FIG. 9 is a facet view thereof. FIG. 10 is a plan view exhibiting a photo voltaic energy generating system which includes a fifth preferred embodiment of the solar tracking device in accordance with the current invention.

FIGS. 1 via four show a photo voltaic power generating system with incorporates the first preferred embodiment of the sun tracking device of the present invention, which is constituted to be arranged on a body of water resembling a sea or a lake. This fixed shaft 1 is erected in a generally perpendicular orientation with its base end buried within the lake or sea bottom, and is strengthened by man wires three extending slantingly downwards from a mid point of the fixed shaft 1, whose different ends are engaged to the lake or sea bottom. 2 is internally equipped with a floatation drive providing means which can embody a set of buoys or the like, or is externally provided with a floatation pressure providing means which may be a set of buoys made from urethane, rubber or the like and thereby is brought on to float on the surface of the water in a typically horizontal orientation while being substantially freely rotatable in a horizontal airplane about the vertical central axis of the fixed shaft 1, with a certain amount of play of the rotatable desk 2 relative to the central axis of the fixed shaft 1 being allowed, each in the sideways path, in the longitudinal path and with respect to angular turning relative to the fastened shaft 1, as a way to compensate for transitory undulations such as waves of the water floor which trigger wobbling of the rotatable table 2 with respect to the fixed shaft 1 via a certain wobbling range.

2 is provided with a plurality of photo voltaic cell arrays 6 corresponding to 6a, 6b and 6c that are used for power generation, and additional carries a pair of solar cell arrays 7 and 8 which serve as sensors, and the circumference of the rotatable desk 2 is further provided with two tracking drive mechanisms eleven and 12, which respectively comprise screws 10a and 10b and DC motors 9a and 9b respectively drivingly coupled thereto. 6a, 6b, and 6c are arranged on the rotatable table 2 in a mutually spaced manner with their lengthy axes being considerably parallel, iTagPro technology and, as can be seen later, for an exemplary one of those methods put in within the northern hemisphere, are directed typically to the south with a sure inclination to the east or to the west of south in keeping with the place of the solar, being swiveled a few vertical axis as the rotatable desk 2 turns about the axis of the fastened shaft 1 in line with the motion of the sun as can be seen later.

6a, 6b and 6c is appropriately adjusted in response to the latitude of the location when the solar energy producing system is put in. 7 and 8 are organized in a symmetrical manner on both facet of the axis of symmetry of the development, which is perpendicular to the lengthy axes of the photo voltaic cell arrays 6a, 6b and iTagPro smart tracker 6c and passes through the rotational shaft 4, and the photo voltaic cell arrays 7 and iTagPro key finder 8 are angled as an illustration at an angle of about 30° to the axle of symmetry, as exemplarily shown in FIGS. 2 and 3, with their light receiving surfaces faced inwardly. 7 and 8 could also be canted or sloped, so as to obtain a very good and satisfactory quantity of sun gentle, depending upon the latitude of installation of the photo voltaic energy producing system. 10a on the rotatable desk 2 is corresponding to to show the rotatable table 2 in the anticlockwise direction as seen in the determine, while on the other hand iTagPro key finder the rotational power exerted by the motion of the screw 10b on the rotatable desk 2 is resembling to turn the rotatable desk 2 within the clockwise route as seen within the figure.