Curtain Wall, Installation Structure of Solar Panels, and Maintenance Method of Solar Panels

Abstract

This solar panel installation structure and curtain wall comprise a glass panel positioned on an outdoor side, and a solar panel set apart from an indoor side of the glass panel across a gap.

Description

Technical Field

[0001] The present disclosure relates to Curtain wall an installation structure of a solar panel and Method for maintaining solar panels This application claims priority based on Japanese Patent Application No. 2023-32411 filed in Japan on March 3, 2023, the content of which is incorporated herein by reference.

Background Art

[0002] Conventionally, in a structure that forms the outer wall of a structure with a curtain wall, a curtain wall in which a solar cell module unit is installed instead of a glass panel of the curtain wall is known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the curtain wall of Patent Document 1, when performing maintenance on the solar cell module unit, it is necessary to remove the solar cell module unit from the outside. In order to remove the solar cell module unit, it is necessary to work using a gondola or a crane, or to construct a scaffold, resulting in a problem that the work becomes large-scale.

[0005] The present disclosure has been made in view of such problems, and an object thereof is to provide an installation structure of a solar panel and a curtain wall that can easily maintain the solar panel.

Means for Solving the Problems

[0006] The installation structure of the solar panel according to the present disclosure includes a glass panel arranged on the outdoor side and a solar panel arranged at an interval on the indoor side of the glass panel.

Brief Description of the Drawings

[0007]

Figure 1

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Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

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Figure 13

Modes for Carrying Out the Invention

[0008] The installation structure of the solar panel and the curtain wall according to the embodiment of the present disclosure will be described with reference to the accompanying drawings.

[0009] In the following description, when indicating directions, it is described as follows. The left - right direction when viewing the curtain wall from the front is referred to as the width direction. The direction orthogonal to the width direction and along the horizontal direction is referred to as the indoor - outdoor direction. The direction orthogonal to the width direction and the indoor - outdoor direction is referred to as the up - down direction or the height direction.

[0010] (First Embodiment) As shown in FIGS. 1 and 2, a building 1 such as a building includes a structure 2 and a curtain wall 3 attached along the outer periphery of the structure 2. The structure 2 has columns 4 and beams 5, and a floor 6 is provided for each floor of the building 1. The interior of the building 1 is configured such that a predetermined space above the floor 6 is a living room 7, and a ceiling - soffit space 9 is formed between the ceiling 8 of the living room 7 and the floor 6 of the upper floor. The curtain wall 3 is configured as the outer wall of the building 1 by being connected to the structure 2 via fasteners 10 (see FIGS. 3 and 5).

[0011] As shown in FIGS. 3 to 5, the curtain wall 3 is manufactured as a unit in a factory or the like and is attached to a predetermined location at the construction site using a crane or the like. The curtain wall 3 includes, for example, a frame body 11 made of aluminum and a glass panel 12 attached to the outdoor side of the frame body 11. The frame body 11 may be made of stainless steel or the like other than aluminum.

[0012] The glass panel 12 of the curtain wall 3 is composed of a first glass panel 12A attached to the outdoor side position of the living room 7 and a second glass panel 12B attached to the outdoor side positions of the ceiling - soffit space 9 and the floor 6. The second glass panel 12B is provided in a so - called spandrel portion 20. The first glass panel 12A is, for example, triple - glass. The second glass panel 12B is, for example, a pair of glasses using float clear glass. The second glass panel 12B is preferably a highly transparent glass panel. The type of the glass panel 12 may be of another configuration.

[0013] A solar panel 13 is provided on the indoor side of the second glass panel 12B. In plan view, the solar panel 13 is disposed at a position closer to the indoor side than the first glass panel 12A on the upper floor and a shoji (not shown) provided on the upper floor. In side view, the lower end of the solar panel 13 is located in the area of the ceiling space 9, and the upper end is located at the height of the lower part of the living room 7 on the upper floor. The upper end of the solar panel 13 is disposed at a position slightly higher than the upper surface of the floor panel 18 provided in the living room 7 on the upper floor.

[0014] A heat insulation panel 14 is provided on the indoor side of the solar panel 13. The heat insulation panel 14 is formed in a plate shape. The heat insulation panel 14 is formed to have substantially the same size as the solar panel 13 in front view. The heat insulation panel 14 includes an aluminum plate 15 disposed on the outdoor side and a heat insulating material 16 disposed on the indoor side of the aluminum plate 15. The aluminum plate 15 and the heat insulating material 16 are, for example, adhered to form a single plate shape. The aluminum plate 15 may be omitted.

[0015] A ventilation unit 17 is provided between the first glass panel 12A and the second glass panel 12B of the curtain wall 3. The ventilation unit 17 connects the outside and the ceiling space 9.

[0016] The curtain wall 3 is unitized integrally with the frame body 11, the first glass panel 12A, the second glass panel 12B, the solar panel 13, the heat insulation panel 14, and the ventilation unit 17.

[0017] The structure of the spandrel portion 20 of the curtain wall 3 will be described in detail with reference to FIGS. 3 to 5.

[0018] The frame body 11 of the spandrel portion 20 is formed in a substantially rectangular shape in front view by an upper frame 21, a lower frame 22, and left and right vertical frames 23, 24.

[0019] As shown in FIG. 3, the upper frame 21 includes an upper frame main body portion 31 with a hollow portion formed therein, a first extended piece 32 extending outward from the upper end of the outdoor side of the upper frame main body portion 31, and a second extended piece 33 extending downward from the outdoor side end of the first extended piece 32. The upper frame 21 includes an upper frame connecting portion 35 provided with a connecting piece 34 extending inward from the indoor side end of the upper frame main body portion 31. The upper frame 21 includes an upper frame panel holding portion 36 extending inward from the indoor side end of the upper frame connecting portion 35. The upper frame main body portion 31 and the upper frame connecting portion 35 are connected using screws 94. The upper frame connecting portion 35 and the upper frame panel holding portion 36 are connected using screws 94.

[0020] The upper end of the second glass panel 12B is held in a recess 37 surrounded by the upper frame main body portion 31, the first extended piece 32, and the second extended piece 33.

[0021] The upper frame panel holding portion 36 has an upper plate 38 extending horizontally, a first protruding piece 39 extending downward from the outdoor side end of the upper plate 38, a second protruding piece 40 extending downward at an interval on the indoor side of the first protruding piece 39, and a third protruding piece 41 extending downward on the indoor side of the second protruding piece 40 and from the indoor side end of the upper plate 38. The upper end of the solar panel 13 is held in a recess 42 surrounded by the upper plate 38, the first protruding piece 39, and the second protruding piece 40. The upper end of the heat insulation panel 14 is held in a recess 43 surrounded by the upper plate 38, the second protruding piece 40, and the third protruding piece 41.

[0022] As shown in FIG. 4, the lower frame 22 includes a lower frame main body portion 45 with a hollow portion formed therein, a third extended piece 46 extending outward from the lower end of the outdoor side of the lower frame main body portion 45, and a fourth extended piece 47 extending upward from the outdoor side end of the third extended piece 46. The lower frame 22 includes a lower frame panel holding portion 48 extending inward from the indoor side end of the lower frame main body portion 45. The lower frame panel holding portion 48 has a hollow portion formed therein. The lower frame main body portion 45 and the lower frame panel holding portion 48 are connected using screws 94. The lower end of the second glass panel 12B is held in a recess 49 surrounded by the lower frame main body portion 45, the third extended piece 46, and the fourth extended piece 47.

[0023] The lower frame panel holding portion 48 has an upper plate 50 extending in the horizontal direction, a fourth protruding piece 51 extending upward from the middle in the indoor-outdoor direction of the upper plate 50, a fifth protruding piece 52 extending upward with a space on the indoor side of the fourth protruding piece 51, and a sixth protruding piece 53 extending upward from the indoor side end of the upper plate 50 on the indoor side of the fifth protruding piece 52. The lower end of the solar panel 13 is held in a recess 54 surrounded by the upper plate 50, the fourth protruding piece 51, and the fifth protruding piece 52. The lower end of the heat insulation panel 14 is held in a recess 55 surrounded by the upper plate 50, the fifth protruding piece 52, and the sixth protruding piece 53.

[0024] As shown in FIG. 5, since the main parts of the vertical frames 23 and 24 are substantially symmetric in shape, the left vertical frame 23 in the front view will be described. The vertical frame 23 includes a vertical frame main body portion 60 extending in the indoor-outdoor direction, a fifth extended piece 61 extending outward in the width direction from the outdoor side end of the vertical frame main body portion 60, a sixth extended piece 62 extending in the outdoor side direction from the outer end in the width direction of the fifth extended piece 61, and a seventh extended piece 63 extending inward in the width direction from the outdoor side end of the sixth extended piece 62. The vertical frame 23 includes a vertical frame panel holding portion 64 extending inward in the indoor side from the indoor side end of the vertical frame main body portion 60. The vertical frame main body portion 60 and the vertical frame panel holding portion 64 are connected using screws 94. The left end (side end) of the second glass panel 12B is held in a recess 65 surrounded by the fifth extended piece 61, the sixth extended piece 62, and the seventh extended piece 63.

[0025] The vertical frame panel holding portion 64 has a side plate 66 extending in the indoor-outdoor direction, a seventh protruding piece 67 extending inward in the width direction from the middle in the indoor-outdoor direction of the side plate 66, an eighth protruding piece 68 extending inward in the width direction with a space on the indoor side of the seventh protruding piece 67, and a ninth protruding piece 69 extending inward in the width direction from the indoor side end of the side plate 66 on the indoor side of the eighth protruding piece 68. The left end (side end) of the solar panel 13 is held in a recess 70 surrounded by the side plate 66, the seventh protruding piece 67, and the eighth protruding piece 68. The left end (side end) of the heat insulation panel 14 is held in a recess 71 surrounded by the side plate 66, the eighth protruding piece 68, and the ninth protruding piece 69.

[0026] The vertical frame 24 has the same structure as the vertical frame 23 and holds the right end (side end) of the second glass panel 12B. The right end (side end) of the solar panel 13 is held by the vertical frame 24. The right end (side end) of the heat insulation panel 14 is held by the vertical frame 24.

[0027] With reference to FIG. 6, the installation method of the solar panel 13 will be described in detail. Three solar panels 13 are arranged on one curtain wall 3. The three solar panels 13 are arranged side by side in the horizontal direction. In FIG. 6, the panel arranged on the left side is designated as the first solar panel 13A, the panel arranged on the right side is designated as the second solar panel 13B, and the panel arranged in the middle is designated as the third solar panel 13C.

[0028] The left end (side end) of the first solar panel 13A is held between the seventh protruding piece 67 and the eighth protruding piece 68 of the vertical frame 23. At the tip inside the width direction of the seventh protruding piece 67, a pair of protruding pieces 73, 73 protruding in the indoor direction are formed. An airtight material 74 is provided between the pair of protruding pieces 73, 73. The airtight material 74 is a rubber member. With the first solar panel 13A held between the seventh protruding piece 67 and the eighth protruding piece 68, the outdoor surface 75 of the first solar panel 13A and the airtight material 74 are in surface contact. The outdoor surface 75 of the first solar panel 13A and the airtight material 74 are in surface contact over substantially the entire length in the height direction. An airtight line is formed by the contact between the first solar panel 13A and the airtight material 74.

[0029] The right end (side end) of the second solar panel 13B is held between the seventh protruding piece 67 and the eighth protruding piece 68 of the vertical frame 24. At the tip inside the width direction of the seventh protruding piece 67, a pair of protruding pieces 73, 73 protruding in the indoor direction are formed. An airtight material 74 is provided between the pair of protruding pieces 73, 73. The airtight material 74 is a rubber member. In a state where the second solar panel 13B is held between the seventh protruding piece 67 and the eighth protruding piece 68, the outdoor surface 76 of the second solar panel 13B and the airtight material 74 are in surface contact. The outdoor surface 76 of the second solar panel 13B and the airtight material 74 are in surface contact over substantially the entire length in the height direction. An airtight line is formed by the contact between the second solar panel 13B and the airtight material 74.

[0030] A panel connecting member 80 is attached to the right end (side end) of the first solar panel 13A. The panel connecting member 80 is provided over substantially the entire length in the height direction of the first solar panel 13A. The panel connecting member 80 includes a mounting piece 81 attached to the back surface 77 of the first solar panel 13A, a boundary piece 82 extending in the indoor-outdoor direction from the outer end in the width direction of the mounting piece 81, a protruding piece 83 extending outward in the width direction from the indoor-side end of the boundary piece 82, pressing pieces 84 extending from the outdoor-side end of the boundary piece 82 to both sides in the width direction, and protruding pieces 85, 85 extending in the indoor-side direction from both ends in the width direction of the pressing pieces 84.

[0031] The mounting piece 81 is formed in a plate shape. The first solar panel 13A and the mounting piece 81 are connected using screws 94 or the like. The screws 94 are attached at a plurality of locations in the height direction of the first solar panel 13A.

[0032] The boundary piece 82 is formed in a plate shape. The boundary piece 82 is provided over substantially the entire length in the height direction of the first solar panel 13A.

[0033] The protruding piece 83 is formed in a plate shape. The protruding piece 83 is provided over substantially the entire length in the height direction of the third solar panel 13C.

[0034] The pressing piece 84 is formed in a plate shape. The pressing piece 84 is provided over substantially the entire length in the height direction of the first solar panel 13A and the third solar panel 13C. The pressing piece 84 is formed with a width dimension in which the airtight material 74 can be arranged.

[0035] An airtight material 74 is provided in a recess 86 surrounded by the boundary piece 82, the pressing piece 84, and the protruding piece 85. In a state where the panel connecting member 80 is attached to the first solar panel 13A, the outdoor surface 75 of the first solar panel 13A and the airtight material 74 are in surface contact. The outdoor surface 75 of the first solar panel 13A and the airtight material 74 are in surface contact over substantially the entire length in the height direction. An airtight line is formed by the contact between the first solar panel 13A and the airtight material 74.

[0036] The left end (side end) of the third solar panel 13C is held in a recess 87 surrounded by the boundary piece 82 of the panel connecting member 80 of the first solar panel 13A, the protruding piece 83, and the tip of the protruding piece 85. In a state where the third solar panel 13C is held by the panel connecting member 80 of the first solar panel 13A, the outdoor surface 78 of the third solar panel 13C and the airtight material 74 are in surface contact. The outdoor surface 78 of the third solar panel 13C and the airtight material 74 are in surface contact over substantially the entire length in the height direction. An airtight line is formed by the contact between the third solar panel 13C and the airtight material 74.

[0037] The structure between the second solar panel 13B and the third solar panel 13C is also configured to be held and connected in the same configuration as that between the first solar panel 13A and the third solar panel 13C.

[0038] Returning to Fig. 3, near the lower end of the first protruding piece 39 of the upper frame panel holding part 36, a pair of protruding pieces 57, 57 extending in the indoor side direction are formed. An airtight material 74 is provided in the recess 58 surrounded by the first protruding piece 39 and the pair of protruding pieces 57, 57. In a state where the solar panels 13 (13A, 13B, 13C) are attached to the curtain wall 3, the outdoor surfaces 75, 76, 78 of the solar panels 13 and the airtight material 74 are in surface contact. The outdoor surfaces 75, 76, 78 of the solar panels 13 and the airtight material 74 are in surface contact over substantially the entire length in the width direction. Since the solar panels 13 and the airtight material 74 are in contact, an airtight line is formed.

[0039] As shown in Fig. 4, near the upper end of the fourth protruding piece 51 of the lower frame panel holding part 48, a pair of protruding pieces 95, 95 extending in the indoor side direction are formed. An airtight material 74 is provided in the recess 96 surrounded by the fourth protruding piece 51 and the pair of protruding pieces 95, 95. In a state where the solar panels 13 (13A, 13B, 13C) are attached to the curtain wall 3, the outdoor surfaces 75, 76, 78 of the solar panels 13 and the airtight material 74 are in surface contact. The outdoor surfaces 75, 76, 78 of the solar panels 13 and the airtight material 74 are in surface contact over substantially the entire length in the width direction. Since the solar panels 13 and the airtight material 74 are in contact, an airtight line is formed.

[0040] With the solar panels 13 attached to the curtain wall 3, the airtight material 74 is in contact with the entire periphery of the surfaces 75, 76, 78 of the solar panels 13. An airtight line is formed at the positions of the surfaces 75, 76, 78 of the solar panels 13.

[0041] As shown in FIG. 3, a cover member 90 is provided at the boundary between the solar panel 13 and the living room 7. The cover member 90 is formed in a substantially L shape in side view. The cover member 90 includes a side plate 91 extending in the vertical direction and an upper plate 92 extending in the outdoor direction from the upper end of the side plate 91. The cover member 90 is formed by bending a steel plate. The cover member 90 is formed to have substantially the same length as the width direction length of the curtain wall 3. The side plate 91 is connected near the lower end using a connecting piece 93 extending upward from the floor 6 and a screw 94. The screw 94 is provided at a position below the upper surface of the floor panel 18. The outdoor side end of the upper plate 92 is arranged in contact with the frame body 11 of the curtain wall 3. In a state where the cover member 90 is attached, the solar panel 13 is not visible.

[0042] The solar panel 13 is provided with electrical wiring (not shown) such as a power cable. The electrical wiring is connected to, for example, the back surface 77 of the first solar panel 13A and is arranged indoors via the gap between the heat insulation panel 14 and the frame body 11. Since the electrical wiring is provided on the indoor side of the airtight line, it does not affect the airtightness of the curtain wall 3.

[0043] As shown in FIGS. 3 to 5, an outside air introduction hole 99 is formed in the frame body 11 of the curtain wall 3. The outside air introduction hole 99 is formed in the vertical frames 23 and 24. The outside air introduction hole 99 is circular. A total of four outside air introduction holes 99 are formed at two positions each in the vertical direction of the vertical frames 23 and 24, respectively, at positions separated from each other. Only two outside air introduction holes 99, one below the vertical frame 23 and one above the vertical frame 24, may be formed in total. The outside air introduction hole 99 may be formed only at two positions separated in the vertical direction of the vertical frame 23 and not formed in the vertical frame 24. The shape of the outside air introduction hole 99 may be other than circular.

[0044] A method for maintaining the solar panel 13 will be described.

[0045] First, remove the cover member 90 corresponding to the location where the solar panel 13 to be maintained is disposed. To remove the cover member 90, partially remove the floor panel 18 at the corresponding location. Remove the screw 94 connecting the cover member 90 and the connecting piece 93, and remove the cover member 90.

[0046] Next, remove the upper frame panel holding portion 36. To remove the upper frame panel holding portion 36, remove the screw 94 connecting the upper frame panel holding portion 36 and the upper frame connecting portion 35. When the screw 94 is removed, the upper frame panel holding portion 36 can be removed.

[0047] Next, remove the solar panel 13. First, remove the third solar panel 13C by lifting it vertically upward. The third solar panel 13C is not fixed anywhere and is only held between the first solar panel 13A and the second solar panel 13B, so it can be easily lifted and removed. Next, remove the second solar panel 13B by lifting it vertically upward. Finally, remove the first solar panel 13A by lifting it vertically upward. At this time, since there are no obstacles such as upper floor shoji in the vertical upper direction of the solar panel 13 and a detaching and attaching space 98 is formed, the solar panel 13 can be easily removed.

[0048] After the maintenance of the solar panel 13 is completed, return the solar panel 13 to its original position. The solar panel 13 to be returned may be the same as the one removed or a new product. When returning the solar panel 13, by performing the procedure reverse to the above-described procedure, the solar panel 13 can be easily returned to its original position within the curtain wall 3 from the living room 7 side.

[0049] The curtain wall 3 includes a glass panel 12 arranged on the outdoor side and a solar panel 13 arranged at an interval on the indoor side of the glass panel 12. The solar panel 13 is detachably provided from the living room 7 side. The curtain wall 3 enables easy maintenance of the solar panel 13. Since the solar panel 13 is arranged at an interval on the indoor side of the glass panel 12, it is difficult to visually recognize the solar panel 13 from the outside, and the appearance design can be finished beautifully.

[0050] Since the solar panel 13 is provided in the spandrel part 20, the dead space of the building 1 can be effectively utilized.

[0051] On the side facing the living room 7 above the solar panel 13, a cover member 90 detachably provided with respect to the frame body 11 of the curtain wall 3 and a recess 42 for holding the upper end of the solar panel 13 are formed, and an upper frame panel holding part 36 detachably provided with respect to the frame body 11 of the curtain wall 3 is provided. By simply removing the cover member 90 and the upper frame panel holding part 36, the solar panel 13 can be attached and detached from the living room 7 side.

[0052] Above the installation position of the solar panel 13, a detachment space 98 of the solar panel 13 is formed. When performing maintenance on the solar panel 13 from the living room 7 side, the solar panel 13 can be easily lifted vertically upward. There are no obstacles when returning the solar panel 13 into the curtain wall 3, and the solar panel 13 can be smoothly installed at its original position.

[0053] An airtight material 74 is arranged at the peripheral edge of the outdoor surface of the solar panel 13. By attaching the solar panel 13 to a predetermined position, the surface of the solar panel 13 and the airtight material 74 can come into contact to surely form an airtight line.

[0054] The curtain wall 3 includes a frame body 11 that holds the glass panel 12, and an outside air introduction hole 99 is formed in the frame body 11 arranged around the periphery of the space formed between the glass panel 12B and the solar panel 13 in the spandrel portion 20. The temperature inside the space does not become too high, and the solar panel 13 can function effectively.

[0055] (Second Embodiment) The second embodiment of the present disclosure will be described with reference to FIGS. 7 to 9. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. The solar panel 100 used in this embodiment is a flexible sheet-like one, for example, a perovskite solar cell. The solar panel 100 includes a PV cell 150, a back sheet 151 provided on the back side of the PV cell 150, and a cover sheet 152 provided on the front side of the PV cell 150 so as to cover the PV cell 150. The PV cell 150, the back sheet 151, and the cover sheet 152 are integrated by a sealing material 161. The peripheral portion of the solar panel 100 is not provided with the PV cell 150 and is composed of the back sheet 151, the cover sheet 152, and the sealing material 161.

[0056] As shown in FIG. 7, the upper frame 21 includes an upper frame connecting portion 35 having a connecting piece 34 extending indoors from the indoor side end of the upper frame main body portion 31. The upper frame 21 includes an upper frame panel holding portion 101 extending indoors from the indoor side end of the upper frame connecting portion 35. The upper frame connecting portion 35 and the upper frame panel holding portion 101 are connected using screws 94.

[0057] The upper frame panel holding portion 101 includes a first plate portion 102 connected to the connecting piece 34 and extending horizontally, a first protruding piece 103 extending upward from the indoor-side end of the first plate portion 102, a second protruding piece 104 extending vertically in a substantially parallel manner with a space therebetween on the indoor side of the first protruding piece 103, an upper plate 105 extending horizontally toward the indoor side from the upper end of the second protruding piece 104, a third protruding piece 106 extending vertically downward from the indoor-side end of the upper plate 105, a second plate portion 107 extending horizontally toward the indoor side from the lower end of the third protruding piece 106, a fourth protruding piece 108 extending vertically downward from the indoor-side end of the second plate portion 107, and a fifth protruding piece 109 extending vertically downward from near the outdoor-side end of the second plate portion 107. The upper end of the solar panel 100 is held in a recess 110 surrounded by the upper plate 105, the second protruding piece 104, and the third protruding piece 106. The upper end of the solar panel 100 is fixed by a bolt 111 and a nut 112 that connect between the second protruding piece 104 and the third protruding piece 106. The solar panel 100 is suspended and supported by the bolt 111 and the nut 112 in the recess 110. The bolt 111 and the nut 112 are provided at a plurality of locations with a space therebetween in the width direction of the upper frame panel holding portion 101. The solar panel 100 is suspended and supported by the upper frame panel holding portion 101 so as not to bend. The upper end of the fireproof board 153 is held in a region surrounded by the second plate portion 107, the fourth protruding piece 108, and the fifth protruding piece 109.

[0058] The solar panel 100 is supported by the bolt 111 and the nut 112. The bolt 111 is detachable from the upper frame panel holding portion 101. The nut 112 is fixed to the outdoor side of the second protruding piece 104 of the upper frame panel holding portion 101. A through hole through which the bolt 111 is inserted is formed near the upper end of the solar panel 100. The method of supporting the solar panel 100 is not limited to this. For example, a structure may be adopted in which the second protruding piece 104 is provided with an internal thread without providing the nut 112, and the bolt 111 is tightened and fixed thereto. Alternatively, the upper part of the solar panel 100 may be sandwiched and fixed with a jig such as an aluminum profile, and the solar panel 100 may be suspended and supported by fixing this jig to the upper frame panel holding portion 101.

[0059] The lower end of the solar panel 100 is arranged at approximately the same height as in FIG. 4. The solar panel 100 is suspended by the upper plate panel holding part 101, and the lower end of the solar panel 100 is held in the recess 54 of the lower frame panel holding part 48. The lower end of the fireproof board 153 is held in the recess 55.

[0060] As shown in FIG. 8, since the main parts of the vertical frames 23 and 24 are substantially symmetric in shape, the left vertical frame 23 in the front view will be used for explanation. The vertical frame panel holding part 64 has a side plate 66 extending in the indoor-outdoor direction, a seventh protruding piece 67 extending inward in the width direction from the middle of the side plate 66 in the indoor-outdoor direction, an eighth protruding piece 68 extending inward in the width direction at an interval from the indoor side of the seventh protruding piece 67, and a ninth protruding piece 69 extending inward in the width direction from the indoor side end of the side plate 66 on the indoor side of the eighth protruding piece 68. The left end (side end) of the solar panel 100 is held in the recess 70 surrounded by the side plate 66, the seventh protruding piece 67, and the eighth protruding piece 68. The left end (side end) of the fireproof board 153 is held in the recess 120 surrounded by the side plate 66, the eighth protruding piece 68, and the ninth protruding piece 69.

[0061] The vertical frame 24 has substantially the same structure as the vertical frame 23, and the right end (side end) of the solar panel 100 and the right end (side end) of the fireproof board 153 are held.

[0062] The installation method of the solar panel 100 will be described in detail with reference to FIG. 8. One solar panel 100 is arranged on one curtain wall 3.

[0063] At the tip of the seventh protruding piece 67 on the inner side in the width direction, a pair of protruding pieces 73, 73 protruding in the indoor direction are formed. An airtight material 74 is provided between the pair of protruding pieces 73, 73. The airtight material 74 is a rubber member. In a state where the solar panel 100 is held between the seventh protruding piece 67 and the eighth protruding piece 68, the outdoor surface 121 of the solar panel 100 and the airtight material 74 are in surface contact. The outdoor surface 121 of the solar panel 100 and the airtight material 74 are in surface contact over substantially the entire length in the height direction. An airtight line is formed by the contact between the solar panel 100 and the airtight material 74.

[0064] Between the seventh protruding piece 67 and the eighth protruding piece 68 of the vertical frame 24, the right end (side end) of the solar panel 100 is held. The fit between the right end (side end) of the solar panel 100 and the vertical frame 24 is the same as that of the left end.

[0065] Returning to FIG. 7, at the lower end of the second protruding piece 104 of the upper frame panel holding portion 101, a pair of protruding pieces 160, 160 protruding in the indoor direction are formed. An airtight material 74 is provided between the pair of protruding pieces 160, 160. The airtight material 74 is a rubber member. In a state where the solar panel 100 is held between the recesses 110, the outdoor surface 121 of the solar panel 100 and the airtight material 74 are in surface contact. The outdoor surface 121 of the solar panel 100 and the airtight material 74 are in surface contact over substantially the entire length in the width direction. An airtight line is formed by the contact between the solar panel 100 and the airtight material 74.

[0066] The lower end of the solar panel 100 is, as in FIG. 4, in surface contact between the outdoor surface 121 of the solar panel 100 and the airtight material 74. The outdoor surface 121 of the solar panel 100 and the airtight material 74 are in surface contact over substantially the entire length in the width direction. An airtight line is formed by the contact between the solar panel 100 and the airtight material 74.

[0067] In a state where the solar panel 100 is attached to the curtain wall 3, an airtight line is formed over the entire periphery of the surface 121 of the solar panel 100.

[0068] A method for maintaining the solar panel 100 will be described.

[0069] First, remove the cover member 90 corresponding to the location where the solar panel 100 to be maintained is arranged. To remove the cover member 90, partially remove the floor panel 18 at the corresponding location. Remove the screw 94 connecting the cover member 90 and the connecting piece 93, and remove the cover member 90.

[0070] Next, remove the upper frame panel holding part 101. To remove the upper frame panel holding part 101, remove the screw 94 that connects the upper frame panel holding part 101 and the upper frame connecting part 35. When the screw 94 is removed, the upper frame panel holding part 101 can be removed.

[0071] Next, remove the solar panel 100. The upper end of the solar panel 100 is fixed to the upper frame panel holding part 101. By lifting the upper frame panel holding part 101, the solar panel 100 can also be lifted together. At this time, since the solar panel 100 is a flexible sheet-like and lightweight, it can be easily lifted. Since the fireproof board 153 is not integrated with the solar panel 100, only the solar panel 100 can be lifted. The solar panel 100 and the fireproof board 153 may be integrated. By removing the bolt 111 attached to the upper frame panel holding part 101, the fixation between the solar panel 100 and the upper frame panel holding part 101 can be released. It is also possible to first remove only the upper frame panel holding part 101 and then lift and remove only the solar panel 100.

[0072] When the maintenance of the solar panel 100 is completed, return the solar panel 100 to its original position. The solar panel 100 to be returned may be the same as the one removed or a new product. When returning the solar panel 100, by performing the procedure opposite to the above-described procedure, the solar panel 100 can be easily returned to its original position inside the curtain wall 3 from the living room 7 side.

[0073] Since the solar panel 100 is arranged in a single sheet in the width direction of the curtain wall 3, the power wiring of the solar panel 100 can be simplified, and the wiring work can be efficiently performed. By reducing the number of junction boxes of the solar panel 100, the installation space of the junction box can be made space-saving, and the labor for construction and maintenance can be reduced.

[0074] Figure 9 shows yet another embodiment of Figure 8. In Figure 9, the solar panel 100 is divided into three parts in the width direction, similar to the first embodiment. The installation structure of the flexible sheet-like solar panels 100 (100A, 100B, 100C) is the same as that in Figure 7 at the upper end, and is substantially the same as that in the first embodiment at other positions than the upper end.

[0075] When maintaining the solar panels 100 (100A, 100B, 100C) shown in Figure 9, they may be configured to be removed and attached one by one, similar to the first embodiment, or the three solar panels 100 (100A, 100B, 100C) may be removed and attached simultaneously. Since the flexible sheet-like solar panels 100 (100A, 100B, 100C) are lightweight, it is also easy to remove and attach the three panels simultaneously.

[0076] Figures 10 and 11 show yet another embodiment of the second embodiment. In Figure 10, the fifth protruding piece 109 is not formed in the upper frame panel holding part 101. In Figures 10 and 11, the solar panel 100 and the fireproof board 153 are configured separately, but they may also be integrally formed. In Figure 10, no airtight material is provided, but an airtight material 74 may be provided as in Figure 7.

[0077] Figures 12 and 13 show another embodiment of the upper frame panel holding part in Figure 7. The upper frame panel holding part 101 shown in Figure 12 has a pair of protruding pieces 165, 165 protruding inwardly in the room direction at the lower end of the fifth protruding piece 109. An airtight material 74 is provided between the pair of protruding pieces 165, 165. The airtight material 74 is a rubber member. The fireproof board 153 is held in the area surrounded by the second plate part 107, the fourth protruding piece 108, and the fifth protruding piece 109, and the outdoor surface 166 of the fireproof board 153 is in surface contact with the airtight material 74. The outdoor surface 166 of the fireproof board 153 and the airtight material 74 are in surface contact over substantially the entire length in the width direction. An airtight line is formed by the contact between the fireproof board 153 and the airtight material 74.

[0078] As shown in FIG. 13, at the tip on the inner side in the width direction of the eighth protruding piece 68, a pair of protruding pieces 73, 73 protruding inward in the room direction are formed. An airtight material 74 is provided between the pair of protruding pieces 73, 73. The airtight material 74 is a rubber member. In a state where the fireproof board 153 is held between the eighth protruding piece 68 and the ninth protruding piece 69, the outer surface 166 on the outdoor side of the fireproof board 153 and the airtight material 74 are in surface contact. The outer surface 166 on the outdoor side of the fireproof board 153 and the airtight material 74 are in surface contact over substantially the entire length in the height direction. An airtight line is formed by the contact between the fireproof board 153 and the airtight material 74.

[0079] The right end (side end) of the fireproof board 153 is held between the eighth protruding piece 68 and the ninth protruding piece 69 of the vertical frame 24. The fit between the right end (side end) of the fireproof board 153 and the vertical frame 24 is the same as that of the left end.

[0080] The lower end of the fireproof board 153 has substantially the same fit as in FIG. 12. In a state where the fireproof board 153 is attached, the outer surface 166 on the outdoor side of the fireproof board 153 and the airtight material 74 are in surface contact. The outer surface 166 on the outdoor side of the fireproof board 153 and the airtight material 74 are in surface contact over substantially the entire length in the width direction. An airtight line is formed by the contact between the fireproof board 153 and the airtight material 74.

[0081] In the case of the configurations of FIGS. 12 and 13, the solar panel 100 is disposed on the outdoor side of the airtight line. In this case, the solar panel 100 may simply be suspended and supported, and the seventh protruding piece 67 of the vertical frame 23 may not be formed. The lower end of the solar panel 100 may be held in a state of not touching the lower frame.

[0082] Note that the installation structure of the solar panel and the curtain wall according to the present disclosure is not limited to the configuration according to the above-described embodiment, and appropriate changes, substitutions, etc. are possible without departing from the gist of the present disclosure.

[0083] In the present embodiment, the solar panel 13 is provided in the spandrel portion 20, but the structure of the curtain wall 3 may be different.

[0084] In this embodiment, the cover member 90 and the upper frame panel holding portion 36 are provided. However, the member for holding the upper end of the solar panel 13, and the shape and configuration of the cover member may be designed as appropriate.

[0085] In this embodiment, the attachment / detachment space 98 is provided in the living room 7. However, if the solar panel 13 can be attached / detached from the living room 7 side, the attachment / detachment space 98 does not necessarily have to be provided directly above the solar panel 13 vertically.

[0086] In this embodiment, the airtight material 74 is provided on the frame body 11 facing the surface of the solar panel 13 to form an airtight line. However, the airtight material 74 may be configured to be attached to the surface side of the solar panel 13 in advance. The airtight line may be formed between the frame body 11 and the heat insulating panel 14.

[0087] In this embodiment, the outside air introduction hole 99 is formed in the frame body 11 of the curtain wall 3. However, if heat countermeasures are taken for the hollow portion of the curtain wall 3, the outside air introduction hole 99 may not be necessary.

[0088] In this embodiment, the description is given for the case of adopting the installation structure of the solar panel on the curtain wall. However, for example, a similar structure may be adopted for a FIX window for a house.

[0089] The structure 2 of this embodiment has a structure in which the beam 5 is provided. However, the structure 2 may have a structure in which no beam is provided.

[0090] In this embodiment, the upper end of the solar panel 13 is arranged at a position slightly higher than the upper surface of the floor panel 18. However, the position of the upper end of the solar panel 13 may be set arbitrarily.

[0091] For example, as shown in FIG. 8, in the present embodiment, the width dimensions of the solar panel and the fire-resistant board are the same, but the width of the solar panel may be shorter or longer than that of the fire-resistant board. The area of the solar panel may be smaller or larger than the area of the fire-resistant board. The area and dimensions of the solar panel are not limited.

Explanation of Signs

[0092] 3…Curtain wall, 12…Glass panel, 13, 100…Solar panel, 20…Spandrel part, 36, 101…Upper frame panel holding part (panel holding member), 42, 110…Recess (holding part), 74…Airtight material, 90…Cover member, 98…Detachable space, 99…Outside air introduction hole

Claims

1. A glass panel provided on the outdoor side, a solar panel provided at a distance from the indoor side of the glass panel, a frame body for holding the glass panel, a cover member provided in the indoor space above the solar panel, and comprising, a curtain wall in which the solar panel is provided so as to be insertable and removable from the indoor side.

2. A glass panel provided on the outdoor side, a solar panel provided at a distance from the indoor side of the glass panel, a frame body for holding the glass panel, a cover member provided in the indoor space above the solar panel, and comprising, a curtain wall in which the solar panel is provided so as to be removable from the indoor side.

3. A panel holding member is provided at the upper end of the solar panel, The curtain wall according to claim 1 or 2, wherein the solar panel provided with the panel holding member is provided so as to be insertable and removable from the indoor side.

4. A panel holding member is provided at the upper end of the solar panel, The curtain wall according to claim 1 or 2, wherein the panel holding member is fixed to the frame body.

5. A panel holding member is provided at the upper end of the solar panel, The curtain wall according to claim 1 or 2, wherein the panel holding member is fixed to the indoor side of the frame body.

6. A panel holding member is provided at the upper end of the solar panel, The curtain wall according to claim 1 or 2, wherein the solar panel is detachable from the panel holding member.

7. The curtain wall according to claim 1 or 2, wherein the cover member is detachable from the frame body.

8. A panel holding member is provided at the upper end of the solar panel, The curtain wall according to claim 1 or 2, wherein the panel holding member is detachable from the frame body.

9. The curtain wall according to claim 1 or 2, wherein the solar panel is provided in a spandrel portion.

10. The curtain wall according to claim 1 or 2, wherein a detachment space for the solar panel is formed above the installation position of the solar panel.

11. The curtain wall according to claim 1 or 2, wherein an airtight material is provided at the peripheral portion on the outdoor side of the solar panel.

12. The curtain wall according to claim 1 or 2, wherein the solar panel is a flexible sheet.

13. The solar panel is the curtain wall according to claim 1 or 2, which is supported by suspension.

14. The curtain wall according to claim 1 or 2, wherein an outside air introduction hole is formed in the frame body provided around the space formed between the glass panel and the solar panel.

15. A glass panel provided on the outdoor side, a solar panel provided at an interval on the indoor side of the glass panel, a frame body for holding the glass panel, a cover member provided in the indoor space above the solar panel, and a panel holding member formed with a holding portion for holding the upper end of the solar panel, the curtain wall comprising the same.

16. A glass panel provided on the outdoor side, a solar panel provided at an interval on the indoor side of the glass panel, a frame body for holding the glass panel, a cover member detachably provided with respect to the frame body in the indoor space above the solar panel, and a panel holding member formed with a holding portion for holding the upper end of the solar panel and detachably provided with respect to the frame body, the curtain wall comprising the same.

17. A glass panel provided on the outdoor side, a solar panel provided at an interval on the indoor side of the glass panel, a frame body for holding the glass panel, a cover member detachably provided with respect to the frame body in the indoor space above the solar panel, and a panel holding member formed with a holding portion for holding the upper end of the solar panel and detachably provided with respect to the frame body, the installation structure of the solar panel comprising the same.

18. A maintenance method for a solar panel provided on a curtain wall including a glass panel provided on the outdoor side and a frame body for holding the glass panel, wherein the solar panel is provided at an interval on the indoor side of the glass panel, a cover member provided in the indoor space above the solar panel, and a panel holding member provided at the upper end of the solar panel, the maintenance method of the solar panel comprising removing the solar panel attached to the panel holding member from the curtain wall after removing the cover member from the indoor side.

19. A maintenance method for a solar panel provided on a curtain wall including a glass panel provided on the outdoor side and a frame body for holding the glass panel, The solar panel is provided at a distance on the indoor side of the glass panel, a cover member provided in the indoor space above the solar panel, and a panel holding member provided at the upper end of the solar panel, and includes: A maintenance method for a solar panel, which comprises removing the cover member from the indoor side, then removing the panel holding member from the curtain wall, and then removing the solar panel from the curtain wall.

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