JP6389840B2 - Light-shielding solar power generator - Google Patents

Description

  The present invention relates to a solar power generation apparatus that performs solar power generation while securing the amount of light required indoors by partially blocking sunlight incident on a room from a daylighting part of a building by a solar battery cell. For example, the present invention relates to a solar power generation apparatus that uses light that has been shielded from light for power generation while performing light intensity control in a building in the agricultural field such as a greenhouse for plant cultivation.

  A thin and light solar cell module in which a plurality of solar cells are covered with a transparent synthetic resin is arranged directly under a daylighting portion in a building such as a greenhouse or an atrium, or a plurality of the thin and light solar cell modules are arranged. The solar cell array having the arranged configuration is provided, and the sunlight in the building is taken between the solar cells of the solar cell module and / or between the solar cell modules of the solar cell array and / or the solar cell module. A power generation system is proposed in Patent Document 1. Specifically, the solar cell module or solar cell array is configured in a sheet shape, and a roll-up type storage mechanism (FIG. 9) that can store all or part of the solar cell module or solar cell array configured in a sheet shape. Installed so that the amount of light collected in the building can be adjusted. Further, the solar cell array has a deployment / shrinkable bellows type configuration in which the solar cell module and the sunlight transmitting portion are flexibly connected and arranged, or a plurality of solar cell modules and the sunlight transmitting portion are arranged. It has been proposed that the sub-array is slidable to be expanded and stored, and is configured to be slidable and retractable (FIG. 11), and is expanded / contracted or expanded / stored by a drive mechanism.

JP 2002-26357 A

  An object of the present invention is to provide a photovoltaic power generation apparatus that can perform daylighting adjustment and photovoltaic power generation at the same time with a configuration different from that of the conventional one.

Hereinafter, the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto.
In order to solve the above problems, a photovoltaic power generation apparatus 1 of the present invention has a plurality of rectangular solar cell laminated sheets (hereinafter simply referred to as “sheets”) on a support frame 2 provided immediately below a daylighting portion in a building. 6a, 6b, and 6c are supported and configured so that they can be converged and expanded from a state where they are converged to one end side to a state where they are deployed to the other end side. Between the convergence side end on the support frame 2 and the deployment side end, a pair of suspension wires W1 are stretched horizontally and parallel to each other. The suspension wire W1 can be extended and retracted in the extending direction between the extended state of the support frame 2 toward the deployment side and the retracted state toward the convergence side. The pair of suspending wires W1 are fed out and fed back simultaneously between a fed-out state and a fed-back state by a pulling mechanism such as the motor 5. A plurality of rectangular solar cell laminate sheets 6a, 6b, 6c are hung by a pair of suspension wires W1 at both ends of the upper side, and are arranged in the extending direction of the suspension wires W1. Both ends of the upper sides of the adjacent sheets 6a, 6b, 6c are connected to each other at a predetermined interval by a pair of connecting wires W2. Further, both ends of the lower side are connected to each other with a predetermined interval by a pulling wire W3. The sheet 6a arranged on the most developed side is locked to the pair of suspension wires W1 at both ends of the upper side, and always moves with the unwinding / rewinding of the suspension wire W1. The sheets 6b and 6c other than the sheet 6a are hung so as to be relatively movable with a predetermined frictional force on the pair of hanging wires W1 at both ends of the upper side. The length of the connecting wire W2 is set so that the connecting wire W2 is in a tensioned state when the hanging wire W1 is in the extended state. The pull-up wire W3 is locked near both ends of the lower side of the sheet 6a arranged on the most developed side at the developed side end, and has a predetermined mutual interval near both ends of the lower side of each of the other sheets 6b and 6c. And is locked to the support frame 2 at the convergence side end. The length of the pulling wire W3 is set so that the plurality of sheets 6a, 6b, and 6c are laid down almost horizontally when the hanging wire W1 is in the extended state and is in a tension state.

  The solar power generation device 1 of the present invention is in a rewind state in which the solar cell laminated sheets 6a, 6b, 6c are converged so as to overlap one end side of the support frame 3 when not in use. When the traction mechanism 5 is activated and the suspension wire W1 is drawn out, the three solar cell laminate sheets 6a, 6b, and 6c are arranged with a locking interval between the connection wires W2 and the tension of the pulling wire W3. All of the sheets 6a, 6b, 6c are in an unfolded state in which the sheets 6a, 6b, and 6c fall down almost horizontally. Thereby, most of the sunlight incident from the daylighting part of the building is shielded to restrict downward incidence, and at the same time, power generation can be performed by the sunlight received by the seat 6.

It is a schematic perspective view of the whole solar power generation device concerning the present invention. It is a front view of the extended state of the solar power generation device of FIG. It is a top view of the extension state of the solar power generation device of FIG. It is an expansion perspective view of the IV section in FIG. It is an expansion perspective view of the V section in FIG. It is an expansion perspective view of the VI section in FIG. It is a partial front view of the convergence state of the solar power generation device of FIG. It is an enlarged view of the VIII part of FIG. It is an enlarged view of the IX part of FIG. FIG. 3 is an enlarged view of a portion X in FIG. 2.

Embodiments of the present invention will be described with reference to the drawings.
1 to 3, the photovoltaic power generation apparatus 1 converges a plurality of solar cell laminated sheets 6 on one end side on a support frame 2 provided immediately below a daylighting portion in a building such as a greenhouse (not shown) (FIG. 7). Or can be deployed to the other end side (FIG. 2). If the building is a greenhouse, plants are grown below the support frame 2.

  The support frame 2 includes a pair of parallel vertical frames 3a and 3b extending horizontally from the convergence side to the deployment side, a horizontal frame 3c that couples the convergence side ends of the vertical frames 3a and 3b, and a lateral frame that couples the deployment side ends. A rectangular upper frame portion 3 including a frame 3d is provided.

  A pair of suspension wires W1 are stretched horizontally and parallel to each other between the horizontal frame 3c on the convergence side of the upper frame 3 and the horizontal frame 3d on the development side. 2 and 3, the suspension wire W1 is drawn out to the unfolding side and the sheet 6 is unfolded, and as shown in FIG. 7, the unwinding wire W1 is unfolded to the converging side to converge the sheet 6. It can be extended in the direction of the wire between them.

In the illustrated embodiment, the pair of suspension wires W <b> 1 is constituted by a part of one endless wire stretched around a plurality of pulleys 4 ( 4 a to 4 f) provided on the upper frame portion 3. . That is, the endless wire is wound around the pulleys 4a-4b-4c-4d-4e-4f-4a in order, and the parallel extended portions between the pulleys 4c-4d and between the pulleys 4f-4a are always drawn in the same direction. Will be turned. Here, this parallel extending portion will be described as a pair of individual suspension wires W1 .

A motor 5 constituting a pulling mechanism for routing the wire W1 is mounted on the upper frame portion 3. The motor 5 draws the endless wire in both the forward and reverse directions, so that the pair of suspending wires W1 that are parallel extended portions of the endless wire between the extended state shown in FIGS. 2 and 3 and the returned state shown in FIG. At the same time, it extends in the direction of wire drawing and rewinds. The pair of suspension wires W1 can be individually stretched and connected to the motor 5 via a transmission mechanism.

  A plurality of (three in the figure) rectangular sheets 6 (6a, 6b, 6c) are lined up in the extending direction of the suspension wire W1 and are suspended from a pair of suspension wires W1 at both ends of the upper side. Both ends of the upper sides of the adjacent sheets 6 are connected with a predetermined distance by a pair of connecting wires W2, and both ends of the lower side are connected by a pulling wire W3 with a predetermined interval.

  The converging side of the pulling wire W3 is locked to the support frame 2 via a pulley 7 provided on the upper frame portion 3.

  The sheet 6a arranged on the most developed side is locked to the pair of suspension wires W1 at both ends of the upper side, and always moves with the unwinding / rewinding of the suspension wire W1. As shown in FIGS. 2 and 3, the suspension wire W1 is extended to a position where the sheet 6a reaches the limit switch 9 attached to the unfolded side end of the support frame 2, and as shown in FIG. The operation is repeated until the position reaches the limit switch 10 attached to the convergence side of the support frame 2.

The sheets 6b and 6c are suspended from the pair of suspension wires W1 at both ends of the upper side so as to be relatively slidable in the extending direction. Sheet 6b, 6c, during feeding of the suspension wires W1, hanging with wire W1, or pulled sheet 6a through a connecting wire W2, drawn to the development side, during or feed-back, with hanging wires W1, the supporting frame 2 (See FIG. 7).

  The length of the connecting wire W2 is set such that the connecting wire W2 is in a tensioned state when the hanging wire W1 is in the extended state shown in FIGS.

  As shown in FIGS. 2 and 3, the pulling wire W3 is in a tensioned state when the hanging wire W1 is in the extended state, and pulls up the lower edges of the sheets 6a, 6b, 6c so that they are substantially horizontal. The length is set so as to line up with each other.

  As shown in FIGS. 7 and 8, the sheet 6 a is reinforced with aluminum angle members 11 and 12 along its upper and lower edges. One blade of the hinge 13 is fixed to the upper surface of both end portions of the upper angle member 11, and the suspension fitting 14 is fixed to the other blade. The suspension fitting 14 is hung on the suspension wire W1, and is fastened to the suspension wire W1 by the fastening fitting 15. The tip of the connecting wire W2 is locked to the other blade. The tip of the pulling wire W3 is locked to one end of the lower angle member 12.

  As shown in FIGS. 7, 9, and 10, the sheets 6 b and 6 c are also reinforced with aluminum angle members 11 and 12 along the upper and lower edges, similarly to the fixed sheet 6 a. Similarly, the hinge 13 is fixed to the angle member 11, and the hanging metal fitting 14 is fixed to the blade. The hanging metal fitting 14 is hung on the hanging wire W1, but is not locked and can slide in the extending direction with respect to the hanging wire W1. The intermediate portion of the connecting wire W <b> 2 is locked to the blade of the hinge 13, and the interval between the adjacent sheets 6 is maintained. The middle portion of the pulling wire W3 is locked to both ends of the lower angle member 12. The proximal end side of the pulling wire W3 is locked to the support frame 2 via the pulley 7.

  As shown in FIGS. 2 and 3, if the length of the tensioned wire W3 that is pulled out in the loosening direction is adjusted manually or by a motor (not shown), a plurality of sheets can be adjusted depending on the degree of tension. Can be adjusted from horizontal to vertical.

When not in use, the solar power generation device 1 is in a rewind state in which the sheets 6a, 6b, and 6c are converged so as to overlap one end side of the support frame 3 (FIG. 7) . From this state, when the motor 5 is started and the suspension wire W1 is drawn out, the three solar cell laminate sheets 6a, 6b, and 6c initially move to the deployment side at the same time, and as shown in FIG. 4, the lifting wire W3 converges. The side is nervous . Since the lower side of the sheet 6c is retained and the upper side is pulled toward the unfolding side, the sheet 6c falls over toward the unfolding side so as to reduce the hanging angle . Furthermore, the sheets 6a and 6b continue to move away from the sheet 6c , and as shown in FIG. 1 and FIG. 5, the locking section of the pulling wire W3 is sequentially tensioned, and the sheets 6a and 6b have a hanging angle. fall into deployed side so as to reduce, eventually with both together tensions connecting wires W2 and pulling the wire W3, sheet 6a, 6b, fully deployed with all falls down substantially horizontally in 6c (FIG. 2, FIG. 3). Thereby, most of the sunlight incident from the daylighting part of the building is shielded to restrict downward incidence, and at the same time, power generation can be performed by the sunlight received by the solar cell laminate sheet 6.

When the suspension wire W1 is not used, the sheets 6a, 6b, and 6c are sequentially returned to the convergence side by returning the suspension wire W1, and the sheets 6a, 6b, and 6c are returned to the convergence side of the support frame 2 by returning to the return state shown in FIG. Stored so as to overlap.

DESCRIPTION OF SYMBOLS 1 Solar power generation device 2 Support frame 3 Upper frame part 3a Vertical frame
3b Vertical frame
3c Horizontal frame
3d horizontal frame
4 (4a-4f) Pulley 5 Motor 6 Solar cell laminate sheet 6a Solar cell laminate sheet 6b Solar cell laminate sheet 6c Solar cell laminate sheet 7 Pulley 9 Limit switch 10 Limit switch 11 Upper ankle material 12 Lower angle material 13 Hinge 14 Suspension bracket 15 Fastening fitting W1 Hanging wire W2 Connecting wire W3 Pulling wire

Claims (3)

A support frame provided directly under the daylighting part in the building;
Between the end of the converging side on one side of the support frame and the end of the developing side, which is the other end, are stretched horizontally and parallel to each other, and are extended to the developing side and fed back to the converging side. A pair of hanging wires that can be extended and retracted in the direction of extension between
A pulling mechanism that is provided on the support frame and that simultaneously feeds and returns the pair of suspension wires between the extended state and the extended state;
A plurality of rectangular solar cell laminate sheets each of which has both ends on the upper side suspended from the pair of suspension wires and arranged in the extending direction of the suspension wires, and
A pair of connecting wires that connect the ends of the upper sides of the solar cell laminate sheets adjacent to each other at a predetermined interval;
A pulling wire for connecting the opposite ends of the lower sides of the solar cell laminate sheets adjacent to each other at a predetermined interval; and
Of the plurality of solar cell laminate sheets, the solar cell laminate sheet arranged on the most unfolded side is engaged with the pair of suspension wires at both ends of the upper side so that the solar cell laminate sheet always moves in conjunction with the unwinding and retraction of the suspension wires. Stopped,
The solar cell laminate sheet other than the solar cell laminate sheet disposed on the most developed side is engaged with the pair of suspension wires at a predetermined frictional force at both ends of the upper side so as to be relatively movable,
The length of the connecting wire is set so that it is in a tensioned state when the hanging wire is in the extended state,
The pull-up wire is locked at one end side near both ends of the lower side of the solar cell laminate sheet disposed on the most unfolded side, and at a middle portion, a predetermined distance is set near both ends of the lower side of the other solar cell laminate sheet. Locked at a distance from each other, locked to the support frame at the other end, and in tension when the hanging wire is in the extended state, the plurality of solar cell laminate sheets are arranged substantially horizontally. Thus, the length is set, and the light-shielding combined use solar power generation apparatus characterized by the above-mentioned. The support frame is a rectangular top having a pair of parallel vertical frames extending horizontally from the convergence side end to the development side end, and a pair of parallel horizontal frames connecting the convergence side ends and the development side ends of the vertical frame. Having a frame,
The pair of hanging wires is composed of a parallel extending portion in one endless wire stretched around the upper frame portion via a plurality of pulleys,
2. The sun according to claim 1, wherein the first traction mechanism includes a motor that is controlled so as to route the parallel extended portion of the endless wire between the extended state and the extended state. Photovoltaic generator.   The pull-up wire is provided so that the locking position with respect to the support frame at the convergence side end can be changed when the suspension wire is in the extended position, and the suspension angle of the plurality of solar cell laminate sheets is adjusted by adjusting the tension. The solar light power generating apparatus combined with light shielding according to claim 1, wherein the solar power generation apparatus is configured to be adjustable from horizontal to vertical.

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