JP2008112606A - Sunlight-collecting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sunlight-collecting system with the energy saving and weight saving realized, by making a plurality of sunlight-collecting devices linked. <P>SOLUTION: The sunlight-collecting system A made by arraying a plurality of sunlight-collecting devices B, each being equipped with a natural lighting part 3 for leading sunlight received to a required position, and a support axis part 2 capable of rotating about an axis line O2 that supports the natural lighting part 3 in free tilting is provided with a first interacting mechanism 23, consisting of pulleys 11 fitted to the support axis parts 2; transmission members 12 rolling around the plurality of pulleys 11; and a first driving part 14 making the plurality of support axis parts 2 rotate about the axis line O2 via the pulleys 11 by rotating the transmission members 12 and is also provided with a second interlocking mechanism 24, consisting of a second driving part 19 tilting one natural lighting part 3, and a flexible member 10 capable of expanding and contracting so as to connect the adjacent natural lighting parts 3 of the plurality of sunlight-gathering devices B and tilting the other natural lighting parts 3 interlocked with the natural lighting part 3 tilted by the driving of the second driving part 19. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is a solar lighting system comprising a plurality of solar lighting devices for reflecting, refracting, or transmitting received sunlight and guiding the sunlight to a desired position such as the interior of a building or a courtyard. About the system.

Conventionally, it is installed on the roof or rooftop of a building, for example, and changes the optical axis direction while reflecting, refracting or transmitting the received sunlight, so that the desired position of the building living space (inside) or the courtyard A sunlight daylighting apparatus that guides sunlight to the sun is used. In this type of daylighting device, the support shaft that supports the daylighting unit equipped with a reflecting mirror, prism, lens, etc. for receiving sunlight and guiding it to a desired position is rotated around the axis by the first drive mechanism. As a result, the orientation of the light receiving surface of the daylighting unit changes. Moreover, the tilting angle (elevation angle) of the light receiving surface of the lighting unit is changed by tilting the lighting unit by driving the second drive mechanism. And by driving while controlling the first and second drive mechanisms as needed, the light receiving surface of the daylighting unit can be moved to track the sun, and the light of the sun whose altitude, azimuth, and angle change The light can be reliably received and guided to a desired position such as a living space or a courtyard of a building below (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3).
JP 2002-81760 A JP 2005-215509 A JP 2001-133676 A

  However, it is common to install a plurality of the above-described solar lighting devices on the roof or rooftop of a building to guide the sunlight, and in this case, the plurality of solar lighting devices are the first ones. And since it operates individually by the second drive mechanism, it is difficult to enlarge the light-collecting light-guided region or conversely. In addition, by providing the first and second drive mechanisms for each, an individual operation power source is required, energy consumption is increased, and the entire solar lighting system comprising a plurality of solar lighting devices There was a problem that the weight increased.

  On the other hand, in a daylighting system for guiding sunlight into a building, a plurality of reflectors (slats), such as disclosed in Japanese Patent Application Laid-Open No. 11-148281, are hung with a hanging string. Some have a reflective louver suspended and supported on the lower stage. In this sunlight lighting system, the sunlight irradiated to the reflecting plate can be reflected indoors by installing the reflecting louver along the window glass of the building. At this time, by operating the hanging string, the elevation angles of the plurality of reflectors can be changed in conjunction with each other, and sunlight can be reflected and guided toward a desired position. However, in this solar lighting system, since it is installed and used along the window glass of a building, it is configured so that only the elevation angle of a plurality of reflectors can be controlled, and it has a limited orientation. Only sunlight from can be guided.

  In view of the above circumstances, an object of the present invention is to provide a solar lighting system that achieves energy saving and weight reduction by linking a plurality of solar lighting devices.

  In order to achieve the above object, the present invention provides the following means.

  A solar light daylighting system of the present invention includes a daylighting part for guiding received sunlight to a desired position, and a support shaft part rotatably supported about the axis while supporting the daylighting part in a tiltable manner. A solar light daylighting system in which a plurality of solar daylighting devices are arranged side by side, a first interlocking mechanism for interlockingly rotating the support shafts of the plurality of solar light daylighting devices, A second interlocking mechanism for interlocking and tilting each of the daylighting units of the solar lighting device, and the first interlocking mechanism is coaxial with each of the support shafts of the plurality of solar lighting devices. A plurality of pulleys provided, a transmission member wound around the plurality of pulleys, and a first drive unit that rotates the transmission member, wherein the second interlocking mechanism is a single piece of the sunlight. The one provided in the device A second drive unit that tilts the daylighting unit of the sunlight daylighting device and a plurality of the daylighting units adjacent to each other of the plurality of daylighting units are connected to each other. It is characterized by comprising an extendable / contractible elastic member that tilts the part.

  In this invention, by driving the first drive unit, it is possible to rotate the plurality of support shafts of the plurality of solar lighting devices in conjunction with each other. Thereby, it becomes possible to control the azimuth | direction of the lighting part of a several sunlight lighting apparatus interlockingly.

  Moreover, if the 2nd drive part is driven and the lighting part of one sunlight lighting apparatus is tilted, the lighting part of another sunlight lighting apparatus can be tilted interlockingly via an expansion-contraction member. Thereby, it becomes possible to control the elevation angles of the daylighting units of the plurality of sunlight daylighting apparatuses in conjunction with each other.

  According to the daylighting system of the present invention, since the azimuth and elevation angle of the daylighting units of a plurality of daylighting devices can be controlled in conjunction with each other, each individual daylighting device is individually controlled as in a conventional daylighting system. Since there is no need to provide a drive mechanism for adjusting the azimuth and elevation angle of the daylighting unit, it is possible to eliminate the need for providing an individual operation power source for each solar lighting device and to save energy. Become. Moreover, since it is not necessary to provide a drive mechanism for each of the plurality of solar lighting devices, it is possible to reduce the weight of the entire solar lighting system.

  Hereinafter, a solar lighting system according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. The present embodiment relates to a sunlight lighting system that is installed on, for example, a roof or a roof of a building and guides sunlight to a desired position indoors.

  As shown in FIG. 1, the sunlight daylighting system A of the present embodiment includes a plurality of sunlight daylighting apparatuses B. As shown in FIGS. 1 to 3, each solar lighting device B includes a pedestal portion 1, a rod-like support shaft portion 2 erected by connecting the lower end to the pedestal portion 1, and upper ends of the support shaft portions 2. And a daylighting unit 3 connected and supported so as to be rotatable (tiltable) in the vertical direction.

  The daylighting unit 3 is attached to a substantially disk-shaped reflecting mirror (lighting plate) 4 and a back surface 3b positioned opposite to the reflecting surface (light receiving surface 3a) of the reflecting mirror 4 with the center H of the reflecting mirror 4 interposed therebetween. A pair of support members 5 and a rotation shaft 6 provided in the radial direction of the reflecting mirror 4 in the direction of the axis O1 and supported at both ends of the pair of support members 5 in the direction of the axis O1. Is formed. The daylighting unit 3 has a central portion in the direction of the axis O1 of the rotation shaft 6 in a state in which the rotation shaft 6 positioned at the center H of the reflecting mirror 4 has its axis O1 orthogonal to the axis O2 of the support shaft 2. The support shaft 2 is connected to the upper end of the support shaft 2 so as to be rotatable. In addition, the reflecting mirror 4 is formed with a concave portion 7 that extends in the radial direction from the outer peripheral end and is recessed so as to prevent the reflecting mirror 4 and the support shaft portion 2 from contacting each other when the daylighting portion 3 rotates. ing. Further, the daylighting system A of the present embodiment including the plurality of daylighting devices B each including the daylighting unit 3 formed in this manner is connected to the daylighting units 3 of the adjacent daylighting devices B. A telescopic rod (extensible member) 10 that can be expanded and contracted is provided continuously.

  On the other hand, the pulley 11 is attached to the support shaft portion 5 of each solar lighting device B in a state where the axes O2 are coaxially arranged. In the solar lighting system A of the present embodiment, each sun light An endless transmission belt (transmission member) 12 is wound around the pulley 11 of the light lighting device B.

  Moreover, the GPS antenna 13 is attached to the upper end side (upper end side of the reflecting mirror 4) of the daylighting part 3 in one sunlight daylighting apparatus B1 among several sunlight daylighting apparatuses B, By this GPS antenna 13, The latitude / longitude and time data of the device B1 are acquired. Based on this acquired data, the azimuth and angle (tilt angle, elevation angle) of the direction in which the light receiving surface 3a of the reflecting mirror 4 should face are calculated, and the position of the daylighting unit 3 of the sunlight daylighting apparatus B1 is controlled. Further, in the one sunlight lighting device B 1, an azimuth angle driving motor (first driving portion) 14 is provided on the pedestal portion 1, and a gear 15 provided on the rotation shaft of the azimuth angle driving motor 14. Is meshed with a gear 16 provided on the support shaft 2 together with the pulley 11. Further, the one solar lighting device B1 includes a screw bolt 18 that is passed through the support shaft portion 2 by a screw bolt support member 17 attached to the support shaft portion 2 and is supported so that one end side thereof is movable forward and backward in the direction of the central axis O3. And an elevation drive motor (second drive unit) 19 that is rotatably provided on the back surface 3b side of the daylighting unit 3 and is connected to the other end of the screw bolt 18 to rotate the screw bolt 18 around the central axis O3. A tilting mechanism 20 is provided. Further, in the one sunlight lighting device B 1, a control unit 21 that controls driving of the azimuth angle driving motor 14 and the elevation angle driving motor 19 is attached to the support shaft portion 2. Further, the pedestal unit 1 is provided with a power supply inlet 22 for supplying power to the GPS antenna 13, the azimuth angle driving motor 14, and the elevation angle driving motor 19 control unit 21.

  Here, in the sunlight lighting system A of the present embodiment, a plurality of pulleys 11 attached to the respective support shaft portions 2, a transmission belt 12 wound around these pulleys 11, and the transmission belt 12 are rotated. The first interlocking mechanism 23 is configured by the azimuth angle driving motor 14 for causing the motor to move. The second interlocking mechanism 24 is configured by the tilting mechanism 20 including the screw bolt 18 and the elevation angle driving motor 19 and the telescopic rod 10.

  Next, the operation and effect of the sunlight lighting system A having the above configuration will be described.

  When the sunlight irradiated to the light receiving surface 3a of the reflecting mirror 4 is guided to a desired indoor position of the building by the plurality of sunlight daylighting apparatuses B of the present embodiment, the altitude, direction, and angle change. The support shaft portion 2 of each of the plurality of solar lighting devices B is rotated around the axis O2 so as to track the sun to be adjusted, and the azimuth in the direction in which the light receiving surface 3a of the daylighting portion 3 faces is adjusted. Moreover, the lighting part 3 is tilted so that the angle of the light receiving surface 3a with respect to the optical axis direction of sunlight is maintained at a predetermined angle.

  At this time, in the present embodiment, when the control unit 21 drives the azimuth angle driving motor 14 in the direction in which the light receiving surface 3a should face based on the calculation result, the support shaft portion 2 of the one solar light collecting device B1. Rotates around the axis O2, and the pulley 11 provided on the support shaft 2 rotates to rotate the transmission belt 12. Then, the support shaft portion 2 of the other daylighting device B2 around which the transmission belt 12 is wound is linked around the axis O2 by an amount corresponding to the rotation amount of the transmission belt 12 via the pulley 11. Rotate. Thus, when the support shaft portion 2 of one sunlight lighting device B1 is rotated by one azimuth angle driving motor 14, the support shaft portion 2 of the other sunlight lighting device B2 is rotated in conjunction with it, The daylighting units 3 of all the sunlight daylighting apparatuses B rotate in conjunction so that the respective light receiving surfaces 3a are simultaneously oriented in a predetermined direction.

  Further, when adjusting the elevation angle of the daylighting unit 3, when the control unit 21 drives the elevation angle driving motor 19 of the tilting mechanism 20 in order to adjust the angle of the light receiving surface 3a, the screw bolt 18 rotates and rotates. Depending on the direction, the advancing movement or the retreating movement is performed, and the daylighting unit 3 of one sunlight daylighting apparatus B1 tilts so that its elevation angle is a predetermined angle. At this time, since the adjacent daylighting units 3 of the plurality of solar daylighting devices B are connected by the telescopic rod 10, when the daylighting unit 3 of one solar daylighting device B1 tilts, the expansion and contraction connected to the adjacent daylighting unit 3. The tension of the rod 10 is changed, and the adjacent daylighting units 3 are tilted simultaneously according to the change of the tension. And the tension | tensile_strength of the expansion-contraction rod 10 which connects the adjacent daylighting parts 3 of other sunlight lighting apparatus B2 changes sequentially, and similarly the other daylighting parts 3 tilt in conjunction. In this way, since the daylighting unit 3 of the other solar daylighting device B2 is tilted in conjunction with the driving of one elevation angle driving motor 19 provided in one daylighting daylight device B1, all the daylighting devices are provided. The B daylighting section 3 tilts so that the elevation angle of the light receiving surface 3a is simultaneously set to a predetermined angle.

  By rotating and tilting the light receiving surfaces 3a of the plurality of sunlight daylighting apparatuses B as described above, the azimuths and elevation angles of the respective light receiving surfaces 3a are accurately adjusted and adjusted, and the indoors located below It is possible to reliably irradiate the desired position with the sunlight guided to. In addition, as compared with a conventional solar lighting system in which a plurality of solar lighting devices are individually provided with a driving mechanism, the azimuth and elevation angle of each light receiving surface 3a are adjusted to be accurately adjusted to an arbitrary azimuth and elevation angle. In this way, the plurality of light receiving surfaces 3a can be adjusted accurately at the same time in any azimuth and elevation angle, so that it is possible to easily enlarge or narrow down the light-guided daylighting area. Become.

  In addition, as described above, the other solar lighting device B2 can be interlocked by each one azimuth angle driving motor 14 and elevation angle driving motor 19 of one sunlight lighting device B1, so that Compared with the case where the solar lighting device is provided with a drive mechanism, the weight of the entire solar lighting system A can be significantly reduced. Furthermore, since it is only necessary to supply electric power for driving the azimuth angle driving motor 14 and the elevation angle driving motor 19 to one sunlight lighting device B1, energy saving can be greatly achieved.

  As mentioned above, although embodiment of the sunlight lighting system which concerns on this invention was described, this invention is not limited to said one Embodiment, In the range which does not deviate from the meaning, it can change suitably. For example, in the present embodiment, the daylighting unit 3 is formed to include the reflecting mirror (lighting plate) 4, but the daylighting plate may be, for example, a prism or a lens. It may be formed by appropriately combining prisms and lenses.

  In the present embodiment, the tilting mechanism 20 that tilts the daylighting unit 3 includes the screw bolt 18 and the second drive unit (elevation angle driving motor) 19, and the daylighting is performed by rotating the screw bolt 18 around the central axis O3. Although the portion 3 is tilted, the tilting mechanism 20 may have another configuration that does not include the screw bolt 18 as long as the daylighting portion 3 is tilted by the driving of the second driving portion 19.

It is a perspective view which shows the sunlight lighting system which concerns on one Embodiment of this invention. It is a front view of the sunlight lighting apparatus with which the sunlight lighting system which concerns on one Embodiment of this invention is provided. It is a side view of the sunlight lighting apparatus with which the sunlight lighting system which concerns on one Embodiment of this invention is provided.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base part 2 Support shaft part 3 Daylighting part 3a Light-receiving surface 3b Back surface 4 Reflecting mirror (lighting board)
10 Telescopic rod (expandable member)
11 Pulley 12 Transmission belt (Transmission member)
13 GPS antenna 14 Azimuth angle drive motor (first drive unit)
18 Screw bolt 19 Elevation angle drive motor (second drive unit)
20 tilting mechanism 21 control unit 22 power supply inlet 23 first interlocking mechanism 24 second interlocking mechanism A solar light collecting system B solar light collecting device B1 one solar light collecting device B2 other solar light collecting device O2 of the support shaft portion Axis

Claims (1)

A plurality of solar daylighting devices provided in parallel with a daylighting unit for guiding received sunlight to a desired position, and a support shaft unit that supports the daylighting unit so as to be tiltable and rotatable about an axis. A solar daylighting system,
A first interlocking mechanism for interlockingly rotating the support shafts of the plurality of solar lighting devices, and a first interlocking mechanism for tilting the lighting portions of the solar lighting devices. With two interlocking mechanisms,
The first interlocking mechanism turns a pulley provided coaxially on each of the support shafts of the plurality of solar lighting devices, a transmission member wound around the plurality of pulleys, and the transmission member A first drive unit, and
The second interlocking mechanism is provided in one of the daylighting devices and tilts the daylighting unit of the one daylighting device, and the daylighting of the plurality of daylighting devices adjacent to each other. A solar lighting system, comprising: a telescopic member that is connected so as to connect the first and second members, and that can extend and contract the plurality of daylighting units by driving the second driving unit.

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