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

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Any such system is disclosed in Japanese Patent Laid Open Publication No. 58-193510, amongst other sources. It's a further object of the current invention to offer such a sun tracking device can cut back the drive energy necessities for driving the rotatable desk to an extremely low degree, and might support and drive the rotatable table with a easy structure. FIGS. 4(a) to 4(c) are illustrative drawings for describing the solar tracking motion of the first preferred embodiment sun tracking device. FIG. 5 is a side view thereof. FIGS. 6(a) to 6(c) are plan view for illustrating the sun tracking motion of the second most well-liked embodiment solar tracking device. FIG. 8 is a plan view thereof. FIG. 9 is a facet view thereof. FIG. 10 is a plan view displaying a solar energy generating system which contains a fifth preferred embodiment of the sun tracking device according to the current invention.

FIGS. 1 through 4 show a photo voltaic power producing system with incorporates the first most popular embodiment of the sun tracking device of the current invention, which is constituted to be arranged on a physique of water equivalent to a sea or iTag Pro a lake. This fixed shaft 1 is erected in a typically perpendicular orientation with its base finish buried in the lake or sea bottom, and is bolstered by man wires three extending slantingly downwards from a mid point of the mounted shaft 1, whose different ends are engaged to the lake or sea backside. 2 is internally geared up with a floatation force providing means which may include a set of buoys or the like, or is externally supplied with a floatation pressure offering means which could also be a set of buoys made from urethane, rubber or the like and iTag Pro thereby is brought about to float on the floor of the water in a typically horizontal orientation whereas being substantially freely rotatable in a horizontal airplane in regards to the vertical central axis of the mounted shaft 1, with a certain quantity of play of the rotatable desk 2 relative to the central axis of the fastened shaft 1 being allowed, both within the sideways direction, within the longitudinal course and with respect to angular turning relative to the fastened shaft 1, with the intention to compensate for transitory undulations akin to waves of the water floor which cause wobbling of the rotatable desk 2 with respect to the fastened shaft 1 by a certain wobbling range.

2 is supplied with a plurality of photo voltaic cell arrays 6 resembling 6a, 6b and 6c which are used for energy generation, and further carries a pair of photo voltaic cell arrays 7 and 8 which function sensors, and the circumference of the rotatable table 2 is additional provided with two tracking drive mechanisms 11 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, and, as will be seen later, for an exemplary one of those programs put in within the northern hemisphere, are directed usually to the south with a certain inclination to the east or to the west of south according to the position of the sun, being swiveled a couple of vertical axis because the rotatable table 2 turns about the axis of the fastened shaft 1 in response to the movement of the solar as might be seen later.

6a, 6b and 6c is appropriately adjusted in accordance with the latitude of the location when the photo voltaic power producing system is put in. 7 and 8 are organized in a symmetrical manner on either facet of the axis of symmetry of the construction, which is perpendicular to the long axes of the photo voltaic cell arrays 6a, 6b and 6c and passes through the rotational shaft 4, and the photo voltaic cell arrays 7 and 8 are angled as an example at an angle of about 30° to the axle of symmetry, as exemplarily proven in FIGS. 2 and 3, with their gentle receiving surfaces confronted inwardly. 7 and eight may be canted or sloped, so as to obtain a superb and adequate amount of sun gentle, relying upon the latitude of installation of the solar power generating system. 10a on the rotatable desk 2 is comparable to to show the rotatable desk 2 within the anticlockwise path as seen within the determine, whereas then again the rotational power exerted by the action of the screw 10b on the rotatable desk 2 is equivalent to to show the rotatable table 2 in the clockwise path as seen within the figure.