JP2014080829A - Snow stop method for existing solar battery roof, and snow stop structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a snow stop method for an existing solar battery roof, capable of imparting snow stop effect to an already constructed existing solar battery roof, effect of improving generating efficiency of a solar battery, and also effect of suppressing degradation of battery efficiency, and to provide a snow stop structure.SOLUTION: A snow stop method for an existing solar battery roof on which solar battery panels 1 are laid includes; a storage space establishing step for establishing storage spaces A capable of storing snow, each of the storage spaces being between the solar battery panels 1, 1; and a snow stop part forming step for forming snow stop parts B capable of guiding snow into the storage spaces.

Description

  The present invention can impart an anti-snow effect to an existing solar cell roof that has already been constructed, and can also provide an effect of improving the power generation efficiency of the solar cell and an effect of suppressing a decrease in battery efficiency. The present invention relates to an existing snow cover method for a solar battery roof and a snow stop structure.

  The existing solar cell roof is constructed so that almost no gap is formed between panels vertically and horizontally. The reason for this is to minimize the cables and the like for electrically connecting the solar cells of each panel, and by providing a single giant board shape, it has the strength to oppose the blowing wind etc. For example.

  On the other hand, in particularly cold regions, a solar cell roof having a structure in which a snow stopper is attached from the beginning is adopted. The structure which fixes the tool 5 is described, Patent Document 2 describes a structure in which a snow stop member 160 is disposed on the underwater side of the solar cell module 10, and Patent Document 3 describes a snow stop portion 1b and a rotation. The structure which fixes the snow stop member 1 which has the prevention part bc to the solar cell module 2 via the frame member 3 is described.

Japanese Patent No. 3700646 JP 2009-299451 A JP 2006-278671 A

However, since the existing solar cell roof is constructed so that almost no gap is formed between adjacent panels in the vertical and horizontal directions as described above, even if a snow stopper is to be attached, it is a single huge plate-like shape. The snow stop effect was remarkably low (see FIG. 1B).
In addition, a slight gap is formed between adjacent panels, and even if a snow stopper is attached to the gap, this snow stopper is only a thing that blocks snow slide, so the snow covered part is the sun. The light receiving area of the battery was reduced, leading to a decrease in power generation.

Even in the proposals described in Patent Documents 1 to 3 and the like, since the snow stopper is configured to be fixed to the frame or the like, the snow stopper or the like is subjected to a load such as snow or snow sliding, and the frame is deformed or the strength is reduced. There was a risk of causing this.
Furthermore, since the snow stoppers prevent snow from falling, the snow accumulation portion reduces the light receiving area of the solar cell, leading to a decrease in the amount of power generation.

  Therefore, the present invention provides an effect of improving the power generation efficiency of a solar cell and an effect of suppressing a decrease in battery efficiency while providing a snow stop effect to an existing solar cell roof that has already been constructed. An object of the present invention is to propose a snow cover method and a snow cover structure for an existing solar cell roof.

The present invention has been proposed in view of the above, and is a snow-stopping method for an existing solar cell roof in which a solar cell panel is laid on an existing roof, and provides a space for storing snow between the solar cell panels. The present invention relates to a snow stop method for an existing solar cell roof, characterized by performing a storage space step and a snow stop forming step for providing a snow stop capable of guiding snow into the storage space.
The name of the present invention is “the existing snow cover method for solar cell roof” means “a method for newly providing a snow cover structure on a solar cell roof in which a solar cell panel is laid”. Means.

  Further, in the snow stop method according to the present invention, the storage space forming step forms a storage space between adjacent solar cell panels by moving part or all of the existing solar cell panels in the flow direction. We also propose a method to stop snow on existing solar cell roofs.

  Further, in the snow stop method according to the present invention, the storage space forming step is performed by removing a part or all of the existing solar cell panel and laying a solar cell panel narrower than the removed solar cell panel. The present invention also proposes a method for snow-preserving an existing solar cell roof, characterized by forming a storage space between the solar cell panels.

Further, in the snow stop method according to the present invention, in the storage space forming step, a stepped storage space is formed between adjacent solar cell panels by moving part or all of the existing solar cell panels in the height direction. The present invention also proposes a snow stop method for an existing solar cell roof characterized by forming
In this case, it is good also considering the side surface of the solar cell panel installed highly as a snow stop part.

Further, in the snow stop method according to the present invention, the storage space forming step may be performed by installing one end of a part or all of the existing solar cell panel in a high direction and adding a gradient to the adjacent solar cell panel. The present invention also proposes a method for snow-preserving an existing solar cell roof, characterized by forming a stepped storage space between them.
In this case, it is good also considering the side surface of the solar cell panel which installed one end high as a snow stop part.

  Further, the present invention is the above snow stop method, wherein the snow stop forming step has a protruding part extending upward instead of a part or all of the fixing members fixing the existing solar cell panel. The present invention also proposes a snow-preventing method for an existing solar cell roof characterized by using

Furthermore, the present invention is a snow cover structure for an existing solar cell roof constructed by the snow stop method, wherein a space capable of storing snow is formed between solar cell panels, and snow can be guided to the storage space. The present invention also proposes a snow stop structure for an existing solar battery roof, which is provided with a snow stop portion.
The “snow-preventing structure of the existing solar cell roof” means “a structure in which a solar cell panel is newly provided with a snow-preventing structure” or “sunlight on the existing roof”. This means a snow stop structure based on a solar cell roof on which a battery panel is laid.

According to the present invention, there is provided a method for forming a storage space in which snow can be stored between existing solar cell panels formed with almost no gap on an existing roof, and a method for forming snow in the storage space. It consists of the process of forming a snow stopper that can be guided, and with a small amount of work, it gives the snow stopper effect, and also gives the effect of improving the power generation efficiency of the solar cell and the effect of suppressing the decrease in battery efficiency. It is something that can be done.
In addition, it is not just a snow stop effect, but snow and rain water can be dropped into the storage space at the snow stop, or it can be dropped from between the panels to the back space to quickly remove snow and deposits on the light receiving surface. And a reduction in the power generation efficiency of the solar cell can be prevented.
Furthermore, since the snow stopper also functions to discharge air in the back surface space of the solar cell panel, heat exhaust in the back surface space of the solar cell panel can be smoothly performed, and a decrease in power generation efficiency of the solar cell is suppressed. can do.

  In addition, when the storage space forming step moves part or all of the existing solar cell panels in the flow direction to form a storage space between adjacent solar cell panels, the solar cell panel itself is not replaced. Since a new solar cell panel is not required, the cost and cost can be kept low.

  In addition, the storage space forming step removes part or all of the existing solar cell panel and forms a storage space between adjacent solar cell panels by laying a solar cell panel narrower than the removed solar cell panel. In such a case, it is suitable for the case where the existing solar cell panel is nearing its end of life or when a new high performance solar cell panel is attached.

  In addition, when the storage space forming step forms a step (corner) storage space between adjacent solar cell panels by moving part or all of the existing solar cell panels in the height direction. Since the solar cell panel itself is not replaced, a new solar cell panel is not required and the cost can be kept low. In addition, since it is good also considering the side surface of the solar cell panel moved high as a snow stop part, in this case, the said storage space formation process can serve as the snow stop part formation process.

  In addition, the storage space forming step has a step (corner) storage between adjacent solar cell panels by installing one or all of the existing solar cell panels at one end in the flow direction and providing a gradient. When the space is formed, the solar cell panel itself is not replaced. Therefore, a new solar cell panel is not required, and the cost can be kept low. In addition, since it is good also considering the side surface of the solar cell panel which installed one end high as a snow stop part, the said storage space formation process can serve as the snow stop part formation process in this case.

  In addition, the snow stopper forming step uses, for example, the storage space in the case where a fixture having a protruding portion extending upward is used instead of a part or all of the fixing members fixing the existing solar cell panel. In the forming process, the existing fixing member is removed when removing the existing solar cell panel, and the fixing member having the protruding portion may be attached when attaching a new position or a new panel. At the same time, the snow stopper forming step can be performed.

  Furthermore, the snow stop structure of the present invention is provided with a snow stop action which is an effect that the existing solar battery roof in which the solar battery panel is laid on the existing roof, and the snow stop action is In addition to damming snow, it can drop snow and rain water into the storage space, or can be dropped from between the panels to the back space, and can quickly remove snow accumulation and deposits on the light receiving surface, In addition, a decrease in power generation efficiency of the solar cell can be prevented.

(A) It is sectional drawing which shows the snow stop structure of the solar cell roof of 1st Example of this invention, (b) It is sectional drawing which shows the existing solar cell roof before constructing this invention. (A) It is sectional drawing which shows the snow stop structure of the solar cell roof of 2nd Example of this invention, (b) It is sectional drawing which shows the existing solar cell roof before constructing this invention. (A) It is sectional drawing which shows the snow stop structure of the solar cell roof of 3rd Example of this invention, (b) It is sectional drawing which expands and shows the fixing member used for it. (A) It is sectional drawing which shows the snow stop structure of the solar cell roof of 4th Example of this invention, (b) It is sectional drawing which shows the snow stop structure of the solar cell roof of 5th Example of this invention.

The snow cover method for an existing solar cell roof according to the present invention is a method for imparting a snow stop structure (action) to an existing solar cell roof in which a solar cell panel is laid on the existing roof, and between the solar cell panels It is characterized by performing (I) a storage space step for providing a space capable of storing snow, and (II) a step for forming a snow stop portion for providing a snow stop portion capable of guiding snow in the storage space.
The existing roof may have any specifications such as vertical roofing, horizontal flooring, folded plates, tiles, and a waterproof roof, and is not particularly limited as long as it can rain (waterproof) under the solar cell.
Hereinafter, each process which comprises this invention is demonstrated.

(I) Storage space step This step is a step of providing a space in which snow can be stored between the solar cell panels. Specifically, (A) a method of forming a space with a constant interval in the flow direction; There are a method of forming a stepped (corner) space in the height direction and a method of combining them.

  (A) A method of forming a space with an integral interval in the flow direction will be described in more detail. (A1) A method of moving a part or all of the existing solar cell panel in the flow direction on the existing roof; (a2) There is a method of removing a part or all of an existing solar cell panel and laying a solar cell panel narrower than the removed solar cell panel.

(A1) The method of moving a part or all of the existing solar cell panel in the flow direction on the existing roof does not require a new solar cell panel because the solar cell panel itself is not replaced. It can be kept low.
In this case, when all of the existing panels are moved, the total laying area of the panels is enlarged, and some of the panels may be removed. Moreover, when moving a part of existing panel, the panel located in an edge part among the existing panels is moved.

  (A2) The method of removing a part or all of the existing solar cell panel and laying a solar cell panel having a width narrower than the removed solar cell panel is approaching the expiration date of the existing solar cell panel. This is suitable when a high performance solar cell panel is newly attached.

  The narrow solar cell panel to be attached may be a solar cell panel equivalent to the removed existing solar cell panel, and is not necessarily limited as long as it does not cause trouble by being electrically coupled. That is, it may be a module in which solar cells such as crystal are laminated on glass or the like, or may be a thin film such as an amorphous film. It may be integrated into a sheet shape (plate shape) or a board shape. Further, the narrow solar cell panel may be constructed by laying the above-described module, sheet, board or the like as it is, or by laying a frame (frame) on the periphery. Furthermore, in order to increase the amount of power generation, a double-sided light reception (power generation) type solar cell may be used. In this case, a reflective portion may be interposed on the back side of the solar cell, and a solar cell that is also used as a base is provided separately. It may be a thing.

  (B) A method of forming a step (corner) -shaped space in the height direction will be described in more detail. (B1) A method of moving a part or all of an existing solar cell panel in the height direction; b2) There is a method in which one end of a part or all of the existing solar cell panel is installed higher to give a gradient.

  The method (b1) of moving a part or all of the existing solar cell panel in the height direction does not require a new solar cell panel because the solar cell panel itself is not replaced in principle. What is necessary is just to use the fixing member which can be restrained low and formed the fixing receiving part which fixes both the edge parts of the said solar cell panel high, respectively. Moreover, the side surface of the solar cell panel installed higher may be used as a snow stopper, and in this case, the storage space forming process can also serve as the snow stopper forming process.

  The method (b2) of installing a gradient by setting one or all of the existing solar cell panels at one end in the flow direction to be high in principle does not replace the solar cell panel itself, and therefore requires a new solar cell panel. Therefore, the cost can be kept low, and a fixing member having a high fixing receiving portion for fixing one end of the solar cell panel may be used. Moreover, since the side surface of the solar cell panel with one end set high may be used as the snow stopper, in this case, the storage space forming step can also serve as the snow stopper forming step.

  The method (C) combining them is a method combining either (a1) or (a2) with either (b1) or (b2). The fifth embodiment to be described later is an embodiment of a method in which the above (a2) and (b2) are combined.

(II) Snow stop part formation process It is the process of providing the snow stop part which can guide snow in the storage space formed in the said storage space formation process etc., for example, one part or all which has fixed the existing solar cell panel Instead of the fixing member, a fixing tool having a protruding portion extending upward may be used.
The projecting portion may be formed integrally with the fixture, or another member including the projecting portion may be assembled (attached) integrally with the fixture. When attaching another member, the attachment method, direct fixing with a screw or the like, fastening with a bolt and nut, engagement, fitting, and the like are assumed. Further, the protrusion is preferably a continuous material, but is not necessarily limited to a continuous material as long as the snow stop and air discharge effects can be obtained.
In addition, as described above, the projecting portion is provided for the purpose of preventing snow and discharging air, so that, for example, the solar cell panel is arranged on a ground with a clear flow direction, that is, a ground with a gradient. However, when the solar cell panel is disposed on a substantially flat base, that is, a base with almost no gradient, the installation conditions (wind direction, etc.) are taken into consideration. Should be provided.

  The step of using the fixture having the protruding portion may be combined with any of the above methods (a1) to (b2). However, as described above, the methods (b1) and (b2) are based on this method. Since the device itself may also serve as a snow stop forming step, it is desirable to combine with the methods (a1) and (a2).

As described above, the existing snow cover method for a solar battery roof according to the present invention forms a storage space capable of storing snow between existing solar battery panels formed on the existing roof with almost no gap, and in the storage space. Since a snow stopper that can guide snow is formed, snow and rainwater can be dropped into the storage space at the snow stopper or from the storage space to the back space of the panel with a small amount of work. Thus, it is possible to quickly remove snow accumulation, deposits, and the like, and to construct a snow stop structure that can prevent a decrease in power generation efficiency of the solar cell. In addition, back surface space refers to the space between a solar cell panel and the foundation | substrate (folded-plate roof).
Furthermore, since the snow stopper also functions to discharge air in the back surface space of the solar cell panel, heat exhaust in the back surface space of the solar cell panel can be smoothly performed, and a decrease in power generation efficiency of the solar cell is suppressed. it can.

  In the first embodiment of the present invention shown in FIG. 1 (a), a part (or all) of an existing solar cell panel 1 is moved in the flow direction (left-right direction in the figure) on the existing roof and adjacent to the sun. A step of forming a storage space (a storage space forming step) between the battery panels 1 and 1 and using a fixture 3 having a protrusion 33 extending upward instead of the existing fixing member 2 (snow stop) This is a method that does not require a new solar cell panel because the solar cell panel 1 itself is not replaced. In the first embodiment, the protruding portion 33 is a snow stop portion a.

  FIG.1 (b) is the existing solar cell roof before constructing this invention shown for the comparison, Comprising: The exterior material 4A which comprises a mountain part and a trough part, and being fixed on the housing 4C On the folded plate roof 4 comprising the holding member 4B for holding the exterior material 4A, a support comprising a left-right split type (support metal) body 5A, a substantially hat-shaped connecting frame 5B, and an upward vertical bolt 5C is provided. The metal fitting 5 is integrated and attached, and the end of the solar cell panel 1 is laid on the receiving flange 51 of the attached support metal fitting 5, and the cross section is held by the inverted hat-type fixing member 2. The solar cell panel 1 has a configuration in which there is almost no gap in the flow direction.

  As shown in an enlarged view in the upper part of FIG. 1 (a), the support metal fitting 5 is provided with a substantially flat receiving flange 51 at the upper end, and outwards through a vertical piece having a through hole below it. A bulging-like holding part is provided, and a seating part is further provided below, and a connecting frame body 5B is disposed substantially at the center of the receiving flange 51. A vertical bolt 5C is provided from the back side of the connecting frame body 5B. Is installed in a state of standing up. The main body 5A, the connecting frame 5B, and the vertical bolt 5C constituting the support metal fitting 5 are combined together so that the seating portion is supported on the folded plate roof 4, and the holding portion is a gore portion. It is the structure attached integrally to the folded-plate roof 4 by fastening | fastening the coupling tool (bolt nut) 5D to the through-hole provided in the said vertical piece part in the state arrange | positioned so that it may cover.

  The solar cell panel 1 has a configuration in which frames 11 and 11 are integrally attached to edges facing the flow direction of a solar cell module 10 whose planar shape is formed in a substantially box shape, and the length in the flow direction is L. It is. The frame 11 has a substantially U-shaped holding portion at the upper end, and a hollow quadrangular prism-shaped landing portion is formed below the holding portion, and this landing portion is supported on the receiving flange 51 of the support fitting 5A. Will be laid. In addition, the back surface space shown by 12 in a figure refers to the space between the solar cell panel 1 and the foundation | substrate (folded-plate roof 4), and is not limited to the back surface of the solar cell module 10. FIG.

As shown in the enlarged upper part of FIG. 1B, the fixing member 2 has horizontal strip-shaped pressing portions 21 and 21 formed at the upper left and right ends of the solar cell panels 1 and 1 facing each other. The horizontal piece of the substantially central portion is the fixing portion 22, and the nut 5 </ b> D is fastened to the tip of the solar cell panel 1 with the vertical bolt 5 </ b> C passing through the hole 221 provided in the fixing portion 22. It is the structure which hold | maintains 1 integrally.
In addition, a height adjusting member 6 that is a vertical cylindrical member is disposed between the support fitting 5 and the fixing member 2 and is attached so that the vertical bolt 5C penetrates.

In the existing solar cell roof having such a configuration, since there is no snow stop structure, the snow accumulation portion reduces the light receiving area of the solar cell, leading to a decrease in the amount of power generation.
Moreover, even if it is going to give a snow stop effect to this existing solar cell roof, since it is constructed so that almost no gap is formed between the solar cell panels 1 and 1 adjacent to the flow direction, the snow stop is in the flow direction. There is nothing other than attaching to the edge of the snow, and the snow stop effect is extremely low.
Furthermore, in this existing solar cell roof, since the air stays in the back surface space 12 formed between the solar cell panel 1 and the folded plate roof 4, the efficiency of the solar cell is likely to decrease. It was.

  Therefore, in the first embodiment of the present invention, first, a part of the existing solar cell panel 1 (a panel other than the leftmost panel) is moved upward in the flow direction (right direction in the figure) and adjacent to the solar cell panel 1. , 1 was carried out to form a storage space a. Specifically, as shown in the figure, the interval between the existing solar cell panels 1 and 1 was X, but the solar cell panel 1 was arranged to be shifted to the right so as to form a constant interval Y.

At that time, after the support metal fittings 5 and 5 for placing the end portions of the solar cell panels 1 and 1 are arranged in parallel in the flow direction, the solar cell panel 1 is arranged at a constant interval Y as described above. A storage space (a) was formed by shifting in the flow direction so as to form.
In addition, since the support fittings 5 and 5 are arranged in parallel in the flow direction, it can be said that the interval Y is formed.

  Next, in place of the existing fixing member 2, as shown in an enlarged view in the upper part of FIG. 1A, a process for forming a snow stopper a using a fixture 3 having a protruding part 33 extending upward is shown. went. Specifically, the existing fixing member 2 is removed, and the water-side end portion of the solar cell panel 1 located on the lower side of the storage space A formed as described above is held by the fixing device 3, and this storage is performed. The water-side end of the solar cell panel 1 positioned on the water side of the space A was held by a fixing member 2B having substantially the same configuration as that of the existing fixing member 2.

The fixing tool 3 used in that case is substantially the same as the fixing member 2 in that it includes a pressing portion 31 that holds the edge of the solar cell panel 1 and a fixing portion 32 that is attached in a penetrating manner to the tip of the vertical bolt 5C. A main body 3A including a protruding piece-like mounting receiving portion 34 extending upward, a standing member 3B including a protruding portion 33 and a groove-shaped mounting portion 35 that opens downward, and a mounting screw 3C for fixing both members. Consists of.
The fixing member 2B has the same configuration as that of the existing fixing member 2 except that the holding member 21 is provided only on the right side, and the same reference numerals are given to the drawings and description thereof is omitted.
The mounting structure is exactly the same as the structure using the existing fixing member 2 except that the fixing tool 3 and the fixing member 2B are used, and is erected on the support brackets 5 and 5 attached to the folded plate roof 4. Each of the vertical bolts 5C and 5C is provided with height adjusting members 6 and 6 which are vertical cylindrical members, and a fixture 3 and a fixing member 2B are further mounted thereon. At that time, the pressing portion 31 of the fixing tool 3 and the pressing portion 21 of the fixing member 2B are attached so as to press the edge of the solar cell panel 1, 1, and are pressed and held by tightening the nuts 5D and 5D. And the protrusion part 33 formed in the fixing tool 3 becomes a snow stop part a.

  The operation (operation) not mentioned may be performed in the same manner as the existing or known solar cell roof laying operation, for example, for electrically connecting the solar cells of the adjacent panels 1 and 1. If there is a margin in the length of the cable or the like, the work can be performed with the cable or the like as it is.

The snow stop structure of the first embodiment of the present invention thus constructed includes a step of forming a storage space A that can store snow between the existing solar cell panels 1 and 1 formed with almost no gap, It consists of the process of forming a snow stop part a that can guide snow to the storage space A, and with a small amount of work, while providing the snow stop effect, the effect of improving the power generation efficiency of the solar cell and the reduction of the battery efficiency An inhibitory effect can also be imparted.
In addition, it is not just a snow stop effect, but snow and rain water can be dropped into the storage space a at the snow stop portion a, or can be dropped from the space between the panels 1 and 1 to the back space 12 to collect snow and deposits on the light receiving surface. Etc. can be eliminated quickly, and a decrease in power generation efficiency of the solar cell can be prevented.
Further, since the snow stop part a is blown from the eaves side, that is, from the underwater side, the upper end of the snow stop part a is in a reduced pressure state, so that the back space 12 (solar cell panel 1 and folded roof 4 Air) is sucked out to the surface side, exhaust heat can be smoothly performed, and reduction in power generation efficiency of the solar battery cell can be suppressed.

  Moreover, in this 1st Example, the new solar cell panel is not required, the indicator metal 5 etc. which were arrange | positioned in parallel can also divert the existing thing, As a new member, the fixture which has the protrusion part 33 3, and the fixture 3 has a very simple structure, so that the cost can be kept low.

  In the second embodiment of the present invention shown in FIG. 2A, a part (or all) of the existing solar cell panel 1 is removed, and a solar cell panel 7 narrower than the removed solar cell panel 1 is laid. The only difference from the first embodiment is that the step of forming a storage space between adjacent solar cell panels 7 and 1 is different from the first embodiment. 3 and the like are almost the same as those in the first embodiment.

FIG. 2B shows an existing solar cell roof before the present invention shown for comparison, which is exactly the same as FIG. 1B and has a length L in the flow direction. The battery panel 1 is arranged with almost no gap in the flow direction.
And in 2nd Example of Fig.2 (a), every other solar cell panel 1 is removed with respect to this existing solar cell roof, and it becomes narrow (length S of the flow direction) solar cell panel 7. I tried to replace it.
The narrow solar cell panel 7 has the same configuration as the existing solar cell panel 1 except that the length S in the flow direction of the solar cell module 70 is narrow, and the frame material 71 is also the same. It is the same as the frame 11.
Further, the support brackets 5 and 5 are arranged in parallel in the flow direction, and thereby the interval Y between the panels 7 and 1 is formed, as in the first embodiment.
As described above, the fixing tool 3 is exactly the same as that of the first embodiment, but the existing fixing member 2 is used as it is as the fixing member 2 that does not include the protruding portion 33.

  In the second embodiment, the same effects as those of the first embodiment can be obtained, and particularly when the existing solar cell panel is about to expire or a new high performance solar cell panel is attached. It is suitable for cases.

In the third embodiment of the present invention shown in FIG. 3 (a), an adjacent solar cell roof is moved by moving a part (or all) of the solar cell panel 1 'in the height direction relative to the existing solar cell roof. It forms a step (corner) storage space between the battery panels 1 'and 1, and also serves as a step of forming a snow stop a.
In addition, since the solar cell panel 1 ′ moving in the high direction is simply removed from the attached position and shifted in the height direction, the configuration of the panel itself is exactly the same, but the solar cell panel 1 that does not move The code “1 ′” is used for distinction.

Specifically, by arranging every other solar cell panel 1 'to be shifted upward, a step (corner) storage space A is formed between the adjacent solar cell panels 1' and 1, and the step (That is, the water-side side surface of the solar cell panel 1 ′) is the snow stop portion a.
FIG. 3B shows the height adjusting support members 6A and 6B and the fixture 3Z for performing this operation, that is, for disposing the solar cell panel 1 ′ by shifting upward.

The height adjustment support member 6A, which is a vertical tubular member, is the same as the height adjustment member 6 used in the first and second embodiments, and adjusts the arrangement height of the fixture 3Z. The height-adjusting support member 6B having a substantially Z-shaped cross section has a configuration in which a horizontal piece-like receiving portion 62 is formed at the upper end of a vertical piece 61 raised from the right end of the fixed portion 63, and receives the solar cell panel 1 ′. Adjust the supporting height. In the fixing tool 3Z, one of the left and right (left) pressing portions 31 holds the edge of the solar cell panel 1 that is not moved, and the other (right) pressing portion 31 'is shifted upward. It holds the edge of the solar cell panel 1 'to be installed, has a configuration in which the right side surface of the fixing portion 22 of the fixing member 2 is formed in a vertically long shape, and the pressing portion 31' is a side surface portion 36 formed in a vertically long shape. It is formed at the upper end of. Note that the outer surface side of the side surface portion 36 is a snow stop portion a.
The height adjusting support member 6B and the fixture 3Z are arranged at the end of the solar cell panel 1 ′ disposed on the lower side (left side of the drawing) and shifted upward. On the right side), a height adjusting support member 6B ′ and a fixture 3Z ′ obtained by inverting them left and right are used.

And the 3rd Example using height adjustment support material 6A, 6B, 6B 'of the said structure, and fixture 3Z, 3Z' is constructed as follows.
First, the existing solar cell roof fixing member 2 and the height adjustment member 6 are removed, and every other height adjustment support member 6B, 6B 'is placed with every other solar cell panel 1' shifted upward. The edge of solar cell panel 1 'is mounted in each receiving part 62 of height adjustment support material 6B, 6B' which attached and changed and attached.
Thereafter, the fixtures 3Z and 3Z ′ are changed every other one and attached, and the edge portions of the adjacent solar cell panels 1 and 1 ′ are pressed and held by the respective pressing portions 31 and 31 ′.

The snow stop structure of the third embodiment constructed in this way does not require a new solar battery panel and does not require a new solar battery panel because the solar battery panel 1 itself is not replaced in the same manner as in the first embodiment. Can do. In addition, since the side part 36 located in the side surface of solar cell panel 1 'moved high can be used as the snow stopper part a, it can serve as both the storage space a formation process and the snow stopper part a formation process.
Moreover, in this 3rd Example, the back surface space 12 of the solar cell panel 1 'moved highly is easy to be exposed to the blowing wind etc. from the underwater side, and the effect | action which exhausts the air in back surface space is also exerted strongly. It will be a thing.

In the fourth embodiment of the present invention shown in FIG. 4 (a), a part (or all) of the solar cell panels 1 "in the flow direction is installed higher than the existing solar cell roof to give a gradient. Thus, a step (corner) storage space A is formed between the adjacent solar cell panels 1 ", 1 and further serves as a step of forming a snow stop portion A.
In addition, since the solar cell panel 1 ″ that is installed with a high end at the flow direction and has a gradient is simply removed from the attached position and shifted at one end in the height direction, the configuration of the panel itself is completely the same. Although there is a solar cell panel 1 that does not move, the symbol “1” ”is used.

More specifically, by disposing one water-side end of every other solar cell panel 1 ″ upward, the solar cell panel 1 ″ is given a gradient so that the adjacent solar cell panels 1 ″ and 1 A step (corner) storage space (a) is formed in the upper portion, and the step (that is, the water-side side surface of the solar cell panel 1 ") serves as a snow stop portion (a).
In order to perform this operation, that is, the height adjustment support 6B ′ and the fixture 3Z ′ for disposing the solar cell panel 1 ′ upward are the same as those used in the third embodiment. The same reference numerals are given and the description is omitted.

And this 4th Example is constructed as follows.
First, every other fixing member 2 of the existing solar cell roof is removed, and the height adjustment support member 6B is placed in a state where the water-side end (right side of the drawing) of every other solar cell panel 1 "is shifted upward. 'Is attached, and the water-side end portion of the solar cell panel 1 "is placed on the support portion 62 of the attached height adjustment support member 6B'.
Thereafter, the fixture 3Z ′ is pressed and held at the edges of the adjacent solar cell panels 1 ″ and 1 by the pressing portions 31 ′ and 31.

The snow stop structure of the fourth embodiment constructed in this way does not require a new solar cell panel and does not require a new solar cell panel because the solar cell panel 1 itself is not replaced in the same manner as the first and third embodiments. It can be kept low. In addition, since the side part 36 located in the side surface of the solar cell panel 1 "which has been inclined by moving one end (the edge on the water side) high can be used as a snow stop part a, the process of forming the storage space is also snow-stopping. It can also serve as a process for forming part i.
Further, in the fourth embodiment, since the blowing air from the eaves side, that is, the underwater side, blows up along the inclined surface with respect to the sloped solar cell panel 1 ", the water upper end of the solar cell panel 1" The wind that reaches the edge causes turbulent flow upward, and the upper end of the storage space a is in a reduced pressure state, so that the air in the back space (between the solar cell panel 1 and the folded roof 4) sucks out to the front side. As a result, the flow of air in the back surface space 12 from the underwater side to the upside of the water is remarkably accelerated, and the temperature at which the solar cells themselves are generated can be suppressed to prevent a decrease in power generation efficiency.

  In the fifth embodiment of the present invention shown in FIG. 4 (b), as in the fourth embodiment, a part of the solar cell panel in the flow direction is installed higher than the existing solar cell roof in a gradient. As in the second embodiment, a part of the solar cell panel 1 is removed, and a solar cell panel 7 narrower than the removed solar cell panel 1 is laid.

Specifically, every two solar panels 1 are removed from the middle part, and a narrow solar panel 7 ′ is attached with a gradient in the flow direction. Accordingly, a step (corner) -shaped and wide storage space A is formed between adjacent solar cell panels 7 "and 7" or between the solar cell panels 7 "and 1, and the step (i.e., solar cell). The water side of the panel 1 'is the snow stop a.
Note that the solar cell panel 7 "that is provided with one end in the flow direction and has a gradient is only removed from the attached position and shifted in the height direction, so that the configuration of the panel itself is the second one. Although it is exactly the same as the narrow solar cell panel 7 used in the example, the symbol “7” ”is used to distinguish it from this flat solar cell panel 7 attached.
Since the height adjustment support member 6B ′ and the fixture 3Z ′ used in the fifth embodiment are those used in the third embodiment, the same reference numerals are given and description thereof is omitted.

The snow stop structure of the fifth embodiment constructed in this way has a snow stop portion on the side face portion 36 located on the side face of the solar cell panel 7 "with one end (water-side end edge) moved high to give a gradient. Therefore, the process for forming the storage space (a) can also serve as the process for forming the snow stopper (a).
Moreover, in this 5th Example, since the storage space a formed in the water upper side of the solar cell panel 7 "with a gradient is a level | step difference (corner part) shape and wide, other 1st-4th A larger amount of snow can be stored than in the embodiment, and the snow stored in the storage space a is expected to melt when the air in the back space 12 is discharged.

1, 1 ', 1 "Solar cell panel 10 Solar cell module 11 Frame 12 Back space 2, 2B Fixing member 21 Holding part 22 Holding part 3, 3Z, 3Z' Fixing tool 3A Main body 3B Standing material 3C Mounting screw 31 Holding part 32 Fixed part 33 Protruding part 4 Folded plate roof 4A Exterior material 4B Holding member 4C Housing 5 Support metal 5A Body 5B Connection frame 5C Vertical bolt 5D Nut 6 Height adjusting material 6A, 6B Height adjusting supporting material 7, 7 "(width Narrow solar cell panel L Width in the flow direction of the solar cell panel S Width in the flow direction of the narrow solar cell panel X Distance between the solar cell panels in the existing solar cell roof Y In the first embodiment Distance between solar panels a Storage space B Snow stop

Claims (7)

A method for snow-preventing an existing solar cell roof in which a solar cell panel is laid on an existing roof,
An existing solar cell roof characterized by performing a storage space forming step for providing a space for storing snow between solar cell panels and a snow stop forming step for providing a snow stop for guiding snow in the storage space Snow stop method.   The existing solar cell according to claim 1, wherein the storage space forming step forms a storage space between adjacent solar cell panels by moving part or all of the existing solar cell panels in the flow direction. How to stop snow on the roof.   In the storage space forming step, a part or all of the existing solar cell panel is removed, and a solar cell panel narrower than the removed solar cell panel is laid to form a storage space between adjacent solar cell panels. The snow stop method of the existing solar cell roof of Claim 1 characterized by these.   In the storage space forming step, a part or the whole of the existing solar cell panel is moved in the height direction to form a storage space between the adjacent solar cell panels, thereby forming a stepped shape between the adjacent solar cell panels. A storage space is formed, The snow stop method of the existing solar cell roof as described in any one of Claims 1-3 characterized by the above-mentioned.   The storage space forming step is to form a step-shaped storage space between adjacent solar cell panels by installing one end in the flow direction of some or all of the existing solar cell panels and applying a gradient. The snow stop method of the existing solar cell roof as described in any one of Claims 1-3 characterized by the above-mentioned.   The snow stopper forming step uses a fixture having a protruding portion extending upward instead of a part or all of the fixing members fixing the existing solar cell panel. The snow stop method of the existing solar cell roof as described in any one of these. It is a snow stop structure of an existing solar cell roof constructed by the snow stop method according to any one of claims 1 to 6,
An existing snow cover structure for a solar cell roof, wherein a space capable of storing snow is formed between solar cell panels, and a snow stop portion capable of guiding snow is provided in the storage space.

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