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

This kind of system is disclosed in Japanese Patent Laid Open Publication No. 58-193510, amongst other sources. It is an extra object of the current invention to provide such a sun tracking device can reduce the drive vitality requirements for driving the rotatable desk to a particularly low stage, and can support and drive the rotatable table with a simple construction. FIGS. 4(a) to 4(c) are illustrative drawings for describing the sun monitoring action of the first preferred embodiment sun tracking device. FIG. 5 is a facet view thereof. FIGS. 6(a) to 6(c) are plan view for illustrating the sun tracking motion of the second most popular embodiment solar tracking device. FIG. Eight is a plan view thereof. FIG. 9 is a aspect view thereof. FIG. 10 is a plan view exhibiting a solar power producing system which incorporates a fifth most popular embodiment of the sun tracking device based on the current invention.

FIGS. 1 by means of 4 present a solar energy producing system with incorporates the first most popular embodiment of the sun tracking device of the present invention, which is constituted to be arranged on a physique of water reminiscent of a sea or a lake. This mounted shaft 1 is erected in a generally perpendicular orientation with its base finish buried in the lake or sea bottom, and is bolstered by man wires 3 extending slantingly downwards from a mid level of the fastened shaft 1, whose other ends are engaged to the lake or sea backside. 2 is internally equipped with a floatation power providing means which may embody a set of buoys or the like, or is externally supplied with a floatation pressure providing means which could also be a set of buoys made from urethane, rubber or the like and thereby is prompted to float on the surface of the water in a usually horizontal orientation while being considerably freely rotatable in a horizontal aircraft about the vertical central axis of the fixed shaft 1, with a certain amount of play of the rotatable table 2 relative to the central axis of the fastened shaft 1 being allowed, each in the sideways route, in the longitudinal direction and iTagPro features with respect to angular turning relative to the fixed shaft 1, with the intention to compensate for transitory undulations comparable to waves of the water surface which trigger wobbling of the rotatable desk 2 with respect to the fastened shaft 1 through a certain wobbling vary.

2 is supplied with a plurality of photo voltaic cell arrays 6 reminiscent of 6a, 6b and 6c which are used for energy generation, and additional carries a pair of solar cell arrays 7 and 8 which serve as sensors, and the circumference of the rotatable table 2 is additional provided with two monitoring 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 desk 2 in a mutually spaced method with their lengthy axes being considerably parallel, and, as might be seen later, for an exemplary one of these programs put in in the northern hemisphere, are directed generally to the south with a certain inclination to the east or to the west of south in keeping with the position of the sun, being swiveled a few vertical axis because the rotatable table 2 turns concerning the axis of the fastened shaft 1 based on the motion of the solar as shall be seen later.

6a, 6b and 6c is appropriately adjusted in accordance with the latitude of the situation when the photo voltaic power generating system is installed. 7 and 8 are arranged in a symmetrical method on both side of the axis of symmetry of the construction, which is perpendicular to the lengthy axes of the solar cell arrays 6a, 6b and 6c and passes through the rotational shaft 4, and iTagPro features the photo voltaic cell arrays 7 and eight are angled as an illustration at an angle of about 30° to the axle of symmetry, as exemplarily proven in FIGS. 2 and 3, with their light receiving surfaces confronted inwardly. 7 and eight could also be canted or sloped, so as to receive a great and ample quantity of sun mild, depending upon the latitude of set up of the photo voltaic energy generating system. 10a on the rotatable table 2 is akin to to show the rotatable table 2 in the anticlockwise route as seen in the determine, while however the rotational pressure exerted by the motion of the screw 10b on the rotatable table 2 is akin to to show the rotatable table 2 within the clockwise direction as seen in the determine.