JP4614668B2 - Solar power plant - Google Patents

Description

  The present invention relates to a solar power generation device such as a solar cell module that generates power using solar energy, and more particularly to a solar power generation device that is installed and fixed on a flat roof using a gantry.

  In recent years, a solar power generation apparatus using a solar cell module in which a plurality of solar cell elements for converting sunlight into light and further using the solar cell module as a power generation unit has become widespread. And in connection with this, the solar cell module corresponding to various roof shapes came to be made.

  Various configurations have also been proposed for the method of attaching the roof.

  For example, a roof-integrated solar cell module manufactured integrally with a roof member, or a frame made of vertical and horizontal beams is assembled on the roof tile, and a solar cell module is mounted on the frame. An installation method called a so-called roof type is also proposed.

  However, according to the above-described installation method, it is configured to be installed mainly on an inclined roof. For this reason, a residential roof (hereinafter referred to as such a house) in which the roof is almost flat like the roof of a building. When a solar power generation device is installed on the roof (referred to as a flat roof), the incident angle of sunlight on the solar cell module becomes shallow, and usually the power generation amount is reduced by about 30 to 40%.

  In order to solve such problems, a solar power generation apparatus as shown in FIG. 12 has been proposed.

  This figure is a perspective view of a conventional solar power generation device, which is a structure that supports a solar cell module while inclining, and uses a mount for inclining installation of the solar cell module.

  Hereinafter, the installation method of this solar power generation device will be described.

  First, a concrete roof, which is a horizontal installation surface, is pierced to perform anchor burying work, and the foundation 1 fixed to the anchor is formed by a heavy object such as concrete. Then, the foundation 1 is fixed by anchor bolts (not shown) driven into the roof.

  And the self-weight of such a foundation 1 is also contributed, and it is supported so that a solar cell module etc. may not be skipped by the negative pressure load by a wind etc.

  Next, a long base rail 4 made of a metal member is installed between a plurality of foundations 1, and support metal fittings 3 (3 a to 3 d) are fixed on these base rails 4. The solar cell module 2 is supported and fixed on the top.

  Each of the support fittings 3a to 3d has different dimensions (lengths). For example, the support fitting 3a is the shortest, the support fitting 3b and the support fitting 3c are lengthened in this order, and the support fitting 3d is the longest. Thus, the installation angle of the solar cell module 2 is inclined as required, thereby improving the power generation efficiency during solar power generation.

  In Japan, the inclination angle of the solar cell module 2 is generally about 30 to 45 degrees because of the relationship with latitude. In order to improve the snowfall effect in snowy areas even when the power generation efficiency is high at 35 degrees. It may be 45 degrees.

  The support fitting 3 may be configured to support a plurality of solar cell modules simultaneously. For example, a technique for reducing the number of parts using the support fittings 3b and 3c as one member has been proposed (for example, a patent). Reference 1).

In addition, technology that can withstand negative pressure loads such as wind due to its own weight by placing heavy objects such as concrete on the bottom of a gantry made up of multiple rail materials without requiring anchoring and other construction work Has also been proposed (see, for example, Patent Document 2).
JP-A-11-177115 JP 2003-234492 A

  However, according to the above prior art, there has been a problem that the construction period becomes longer due to the foundation work.

  Also, due to the need for anchoring on the installation surface, the installation surface may be damaged and damaged due to the intrusion of rainwater, etc., thereby shortening the life of the installation surface There was also a problem.

  Furthermore, the number of parts is large, and it takes time to assemble, and because each part is heavy, it is possible to carry members on the roof (for example, a process of lifting mainly by a ladder or crane from the outside), or Carrying was also a dangerous task.

  In addition, when installed in a building that is older than the building age, the load on the installation surface is reduced (decrease in durability), and in order to avoid the collapse of the building itself, the position of the column is searched in advance and anchored to the column position. Consideration such as hitting is also necessary.

  In addition, in this case, the position where the anchor can be struck does not necessarily match the installation direction of the photovoltaic power generation device in such a condition that the power generation amount is improved, and thus the solar cell is installed in an optimal direction. In some cases, the power generation could decrease.

  Furthermore, the base rails and metal fittings used in this solar power generation device, and the concrete for foundations (those that have been shaped and embedded with fixing members such as base rails) are long and heavy. In addition, the occupied area and volume of the parts with respect to the loading platform during transportation on a truck or the like becomes very large, which increases the transportation cost.

  Further, according to Patent Document 1, a pedestal that generates power without anchor work is proposed, but the structure of the pedestal for installing a solar cell is similar to the conventional method, and there are many components and assembly. In addition, there is a problem that it takes time.

  Furthermore, the counterweight against wind load generated by wind is structured to be inserted into the frame of the gantry, and all the gantry is installed on the installation surface, and then a heavy object is sewn between the rails of the gantry. Inserting the counterweight into the frame of the frame is an extremely difficult structure even though the counterweight is divided, and it is necessary to fix the solar cell module after inserting the counterweight. Restrictions were to occur.

  Although not shown, according to such a structure, it can be easily understood that it is more difficult to insert the counterweight when adjacent frames are arranged adjacent to each other. Furthermore, if the distance between the adjacent bases is set to be longer than the length of the counterweight and can be inserted from the side, a non-installable region (area) is generated between the solar power generation devices. It is clear that the power generation efficiency per installation area is reduced.

  Further, according to Patent Document 2, a part called a base part is placed on the installation surface, and the number of parts is reduced by sharing with the front, rear, left and right solar cells, thereby reducing the number of parts compared to the conventional method. On the other hand, in order to install the foundation accurately, the ink marking work must be performed accurately. If the ink marking work cannot be performed accurately, the front, rear, left and right solar cells are accurately It cannot be installed, and an operator must install it on-site, and it takes time to assemble due to the individual response.

  Moreover, even if it is going to perform sumi-dashi accurately, if it has a structure where the installation surface has undulation, drainage slope, connecting surface and the solar cell is fixed by bolt fixing (generally about M6 to M8), The ink marking accuracy can be said to be extremely difficult to achieve with the bolt unless the ink marking operation is performed with a gap between the mounting hole and the bolt fitting portion, that is, with an accuracy within 2 to 3 mm.

  Therefore, the present invention has been completed in view of such problems, and its purpose is a simple structure, which reduces the number of assembly steps during installation work, thereby reducing production costs and production time. The object is to provide a solar power generation device that achieves cost reduction.

  Another object of the present invention is to reduce the manufacturing cost and the manufacturing time by eliminating or reducing the complicated process without increasing the positioning accuracy as in the prior art. It is to provide a power generation device.

  Still another object of the present invention is to provide a photovoltaic power generation apparatus that eliminates the problems during transportation of parts as in the prior art, reduces transportation costs, and thereby achieves cost reduction.

Photovoltaic device of the present invention, a rectangular or square shape of the solar cell panel is disposed on the entire circumference region of the solar panel, the solar panels facing the one located to the side frame and the other A solar cell module including a frame , one frame disposed on the one frame, and the other frame disposed separately from the one frame on the other frame. And a weight member disposed on each of the one frame and the other frame , and the weight member is disposed so as to be exposed from a region immediately below the solar cell module. It is characterized by.

The solar power generation device of the present invention is provided with a guide portion into which the solar cell module is inserted with respect to the one base and / or the other base, and the guide portion is folded back to be in contact with the upper surface of the solar cell module It is preferable to have a part .

  Still another photovoltaic power generation apparatus according to the present invention is characterized in that it is molded into a predetermined shape so that a weight member is arranged on the one frame and / or the other frame.

To the one frame of the solar cell module arranged on the one frame, the as other frame body increases the solar cell module arranged on the other frame, a combination of both of these frame It is characterized by that.

  Furthermore, the photovoltaic power generator of the present invention is characterized in that the weight of the weight member is based on being able to withstand a wind load applied to the wind applied to the photovoltaic power generator.

  According to the solar power generation device of the present invention, one frame and the other frame are arranged with respect to one frame and the other frame facing each other among the frames of the solar cell module as described above. In addition, a weight member is arranged on each of the mounts so that such a photovoltaic power generation apparatus is installed, so that it can be placed without using any installation means, and the roof Anchor work will not be performed on the installation surface, etc., and foundation work will be unnecessary. In addition, problems such as rainwater intrusion into the roof caused by this can be prevented, and construction for waterproofing can be omitted.

  Further, according to the present invention, both the gantry and the other gantry are fitted to the solar cell module with bolts, for example, and the weight (weight member) is used as a counterweight for the wind load. By installing, the number of parts is greatly reduced.

  Furthermore, according to the present invention, there is no need to bury the foundation on the roof, so that it can be appropriately installed in a direction with a large amount of solar radiation, that is, a direction in which a large amount of power generation can be obtained. Can do.

  Moreover, according to the photovoltaic power generation apparatus of the present invention, each of the gantry and the other gantry has a structure in which a counterweight (weight member) is placed, thereby not being restricted by the work procedure. Work efficiency can be increased and manufacturing cost can be reduced.

  For example, there is a process in which one frame and the other frame are arranged, a solar cell module is installed, and then a weight member is disposed on each frame and the other frame. The solar cell module may be installed at the same time or before and after placing the weighting member on the gantry and the other gantry, and the assembly process can be appropriately selected in consideration of the workability. Because there are no restrictions on the work procedure, it can be assembled in various ways.

  In addition, according to the present invention, there are no reference parts, and no inking operation is required, so that the assembly time can be greatly reduced. Furthermore, it is easy to remove partly for removal or maintenance, and when the solar cell array is provided with a plurality of photovoltaic power generation devices, the work man-hours are particularly reduced.

  Further, the solar cell module may be placed along a guide portion formed on one frame or the other frame, which facilitates alignment (for example, screw alignment) of the solar cell module with respect to the frame. The process becomes simple.

  In addition, according to the present invention, one gantry and / or the other gantry is formed into a predetermined shape so as to distribute weight members, and the gantry is superposed and transported when transporting these gantry. This makes it possible to effectively use the space of trucks and other loading platforms, and other limited spaces and spaces such as when temporarily placing after folding and temporarily placing a platform on the installation site. In addition, a large number of mounts can be stored, and the area required for the storage location can be reduced.

  In addition, the upper part of the guide part on the bent side has a folded structure, which is stronger than fixing the solar cell part to the pedestal with screws and bolts, and the safety of the solar cell part 103 does not drop off even when the bolt breaks. To do. In addition, if the guide part is spread outward by the elastic force of the structural material itself, the mounting and removal of the solar cell part can be performed without moving the gantry. Is not impaired.

  Further, according to the present invention, the two frames are assembled so that the other frame body of the solar cell module disposed on the other frame is higher than the one frame body of the solar cell module disposed on the one frame. By combining, the installation angle of the solar cell module can be inclined as required, and can be set to, for example, 30 to 45 degrees, thereby improving the power generation efficiency during solar power generation. Can do.

  Furthermore, according to the present invention, the weight of the weight member is based on being able to withstand the wind load with respect to the wind applied to the photovoltaic power generation apparatus, and the weight may be set. Therefore, it can be designed to withstand the photovoltaic power generation device against wind loads.

  Hereinafter, an embodiment of a solar power generation device according to the present invention will be described in detail based on the drawings schematically shown.

  FIG. 1 is a perspective view showing a state in which a gantry, a solar cell portion that is the solar cell module, and a weight that is the weight member are combined, FIG. 2 is a schematic cross-sectional view of the solar cell portion, and FIG. 4 is an exploded perspective view of the photovoltaic power generation apparatus according to the present invention, FIG. 4 is a perspective view showing a state in which a large number of solar cell modules are installed, and FIGS. 5 and 6 are an upper side frame that is the other frame and the one frame, respectively. It is a perspective view which shows a base stand.

  FIG. 7A is a side view of the upper-side frame, and FIG. 7B is a rear view of the upper-side frame. FIG. 8 is a perspective view showing a state in which a plurality of upper frame bases are superposed upon each other.

  FIG. 9 is a side view showing a state in which the solar cell unit is mounted on the gantry, and FIGS. 10 and 11 are side views showing a method for mounting the solar cell unit on the gantry.

  Next, these drawings will be described in detail.

  As shown in FIG. 1, the photovoltaic power generation apparatus of the present invention includes a solar cell unit 103, an upper frame base 101 and a bottom frame frame 102 that support the solar cell unit 103 at an inclination, and these upper side frame frame 101 and bottom frame frame 102. And a weight 104 for preventing movement from the installation location.

  Examples of the weight 104 include a concrete block and a metal block such as iron.

  Reference numeral 105 denotes a mounting member for the solar cell unit formed by forming a part of the frame when the solar cell unit 103 is mounted on the upper frame base 101 and the bottom frame 102.

  The upper side base 101 and the bottom side base 102 are made of, for example, aluminum metal, SUS, ceramics, synthetic resin, or the like.

  A configuration in which the solar cell unit 103 having the gantry 101 and 102 and the weight 104 are combined is referred to as a solar cell unit U.

  And this solar cell unit U is installed on a flat roof.

  The solar cell unit 103 will be described with reference to FIG.

  For example, power is obtained by utilizing the photoelectric conversion effect of the solar cell element 5 made of silicon or the like, and a plurality of such solar cell elements 5 are electrically connected in series and / or in parallel. Then, it is covered with a weather-resistant material so as to obtain a required output voltage and output current.

  This solar cell element 5 is composed of a crystalline solar cell such as single crystal or polycrystalline silicon, or a thin film solar cell.

  In such a solar cell unit 103, a light transmitting plate 6 such as a glass plate or a synthetic resin plate is disposed on the light receiving surface of the solar cell element 5, and a Teflon (R) film or PVF (PVF (non-light receiving surface) on the back surface thereof. A weather-resistant film 7 such as polyvinyl fluoride or PET (polyethylene terephthalate) is applied, and between the light-transmitting plate 6 and the weather-resistant film 7, for example, EVA (ethylene-vinyl acetate copolymer resin) A transparent synthetic resin is interposed between the light transmitting plate 6, the solar cell element 5 and the weather resistant film 7. A frame body 9 made of SUS or the like is mounted so as to sandwich the frame body 9 to increase the overall strength of the solar cell unit 103.

  As shown in FIGS. 5 and 7A, the solar cell unit 103 with such a frame 9 is placed on the receiving unit 121 above the bent unit 120 of the upper frame 101.

  The receiving portion 121 has an inclination angle θ, and is placed so that the height of the upper frame base 101 and the height of the bottom frame 102 are different, so that the solar cell unit 103 is inclined and installed. Make it.

  That is, such that the other frame of the frame 9 of the solar cell unit 103 disposed on the upper frame 101 is higher than the one of the frame 9 of the solar cell unit 103 disposed on the bottom frame 102. Both mounts are combined.

  Further, the guide portion 122 has a function as a guide for inserting the solar cell portion 103.

  The bottom base 102 is similarly placed. However, it is not particularly shown.

  Then, as shown in FIG. 1, in a state where the solar cell unit 103 is placed on the upper frame base 101 and the base frame 102 described above, the solar cell unit 103 is attached to the upper frame frame 101 and the bottom frame 102 with screws or the like. Tighten and fix. Thereafter, the weight 104 is placed on each of the upper frame base 101 and the bottom frame base 102.

  Further, as shown in FIGS. 5 and 6, the mounting members 105 of the upper frame base 101 and the bottom frame base 102 are inserted along the longitudinal direction of the frame body 9 of the solar cell unit 103, and the upper side frame 101 and the bottom frame 102 are bent. Until the portions 110 and 111 come into contact with each other, and thereafter, holes (not shown) provided in the frame 9 of the solar cell portion 103 and holes 112 and 113 provided in the upper frame base 101 and the bottom frame 102 are formed. The structure is fastened and fixed with bolts and nuts.

  According to such a structure, when assembling, it can be attached with only a tool of a screwdriver level, and it becomes a simple assembling method as compared with the conventional method.

  By installing a plurality of solar cell units U assembled in this manner on a flat roof as shown in FIG. 4, a solar power generation device that can obtain a required power generation amount is obtained.

  According to the figure, 9 solar cell units U are used, and according to the solar power generation apparatus of the present invention, the order of installation of the weights 104 and the timing of the installation are different for other work. The weights 104 may be appropriately disposed after each solar cell unit U is installed at a predetermined place without depending on it.

  Thus, according to the photovoltaic power generation apparatus of the present invention, as described above, in the upper frame base 101 and the bottom frame 102, both ends of the base 123 are bent to form the bent portion 120 as shown in FIG. Thus, as shown in FIG. 3, the solar cell portion 103 is placed on the bent portions of the upper base 101 and the bottom base 102, and the weight 104 is placed on the base 123, whereby the upper base 101 and the base The entire base 102 is fixed at the installation location. As a result, even if it is installed on a flat roof, it will not be blown or turned over by wind pressure, etc., and anchoring work such as anchoring on the roof It becomes unnecessary.

  In addition, as shown in FIG. 4, even when a plurality of solar cell units U are arranged, it is possible to easily work from above on the bottom sides of the upper side base 101 and the bottom side base 102, thereby placing the weight 104. Or can be easily removed.

  Furthermore, if the metal block such as a concrete block or iron, which is the weight 104, is divided into several small blocks, the construction becomes easier and safer.

  Moreover, it is the structure which mounts | wears with both sides corresponding to the opposing side with respect to the solar cell part 103 using the upper side base 101 and the bottom base 102, and, thereby, the upper side is attached to the back surface side of the solar cell part 103. There is a region where the gantry 101 and the bottom gantry 102 do not come into contact with each other, and a certain space is created to create a ventilation space, and the solar cell unit 103 is cooled by the air flow. As a result, the power generation efficiency can be improved.

  Next, an embodiment in the case of transporting the metal fittings such as the upper side base 101 and the bottom side base 102 will be described.

  FIG. 7B is a side view of the upper side base 101.

  The bent side 120 bent vertically by the bending process of the upper side base 101 is bent into an inverted C shape at an angle of 1 to 15 degrees (an example manufactured at 6 degrees in the figure). When manufactured at 6 degrees as in this example, the bent side 120 of the upper frame 101 is inclined at an angle of 3 °, and similarly, the bent side 120 of the bottom frame 102 is also at an angle of 3 °. It is inclined.

  And, as shown in FIG. 8, the upper frame base 101 (101a to 101d) can be transported in an overlapping manner, whereby the space of the cargo bed such as a truck can be effectively used, and at the time of temporary placement after bending, A limited space can be used effectively for temporarily placing the components on the installation site. The same effect can be obtained by applying the same processing to the bottom base 102.

  Further, as shown in FIG. 9, the upper part of the guide part 122 of the bent side 120 has a folded structure like the folded part 10, and the upper frame base 101 and the bottom frame 102 are slid and fitted into the solar cell unit 103. In this way, the folding unit 10 supports the force by which the solar cell unit 103 is lifted by a negative pressure load caused by wind or the like, and the upper frame base 101 and the bottom frame 102 themselves pull the solar cell unit 103 back. Therefore, it is stronger than fixing the solar cell unit 103 to the upper frame base 101 and the bottom frame 102 with screws or bolts, and the solar cell unit 103 does not fall off even when the bolt is broken, thereby improving safety. .

  In the drawing, the upper frame base 101 is described as an example, but the same applies to the bottom frame 102 and is not particularly illustrated.

  Further, in the structure using the folded portion 10 described above, if the guide portion 122 spreads outward by the elastic force of the structural material itself as shown in FIG. 101 and the bottom base 102 can be performed without moving, thereby improving the performance against a negative pressure load, and at the same time, the workability is not impaired. Further, if the side portion of the solar cell portion 103 is fixed to the guide portion 122 with a screw or a clasp so that the guide portion 122 does not spread freely, the resistance to peeling of the solar cell portion 103 increases, and the safety is further improved. Increase.

  Further, as shown in FIG. 11, the folded portion 11 itself has a structure having elasticity, so that the solar cell portion 103 is sandwiched so that the folded portion 11 presses against the receiving portion 121 of the upper frame base 101 and the bottom frame 102. For example, the solar cell unit 103 can be fixed to the upper frame base 101 and the bottom frame 102 without using screws or bolts, and as a result, workability can be improved.

  As described above in detail, according to the photovoltaic power generation apparatus of the present invention, since no foundation work is required, the construction period can be shortened and the position of the support column is not affected, so that the amount of power generation is maximum. It can be installed in the following direction.

  Furthermore, when assembling the conventional construction method, the work is performed using various tools. On the other hand, the number of parts can be reduced, and the assembling work can be completed with, for example, one screwdriver.

  For reference, in the conventional method as shown in FIG. 12, eight parts are required per one solar cell unit. On the other hand, in the photovoltaic power generation apparatus of the present invention, the upper side frame 101, It consists of a total of three points, the base frame 102 and the weight 104, and is excellent in all workability, reduction of the number of parts, and transportability.

It is a perspective view of the solar power generation device of the present invention. It is a schematic sectional drawing of the solar cell module in the solar power generation device of this invention. It is a disassembled perspective view of the solar power generation device of this invention. It is a perspective view of the other solar power generation device of this invention. It is a perspective view of the other mount frame in the solar power generation device of the present invention. It is a perspective view of one stand in the solar power generation device of the present invention. (A) is a perspective view of the other mount frame in the solar power generation device of the present invention, and (b) is a rear view thereof. In the solar power generation device of this invention, when conveying the other mount frame, it is a perspective view which shows the state which piled up these. It is a side view which shows the state which mounted | wore the mount frame with the solar cell module. It is a side view which shows the method of mounting | wearing a mount frame with a solar cell module. It is a side view which shows the method of mounting | wearing a mount frame with a solar cell module. It is a perspective view of the conventional solar power generation device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 103 ... Solar cell part 101 ... Upper frame 102 ... Bottom frame 104 ... Weight 105 ... Solar cell unit mounting member U ... Solar cell unit

Claims (4)

A rectangular or square solar cell panel, and a frame body including one frame body and the other frame body, which are arranged in the entire peripheral region of the solar cell panel and located on opposite sides of the solar cell panel, A solar cell module having
One pedestal arranged on the one frame,
On the other frame, the other gantry that is spaced apart from the one gantry,
A weight member disposed on each of the one frame and the other frame ; and
The weight generator is disposed so as to be exposed from a region immediately below the solar cell module. A guide portion into which the solar cell module is inserted is provided for the one frame and / or the other frame,
The solar power generation device according to claim 1, wherein the guide portion has a folded portion that comes into contact with an upper surface of the solar cell module.   The two frames are combined so that the other frame of the solar cell module disposed on the other frame is higher than the one frame of the solar cell module disposed on the one frame. The solar power generation device according to claim 1 or 2, wherein   4. The photovoltaic power generation apparatus according to claim 1, wherein the weight of the weight member is based on being able to withstand a wind load with respect to wind applied to the photovoltaic power generation apparatus. 5.

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