JP3083473B2 - Waterproof structure of the joint of solar energy conversion panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a waterproof structure for a joint of a solar energy conversion panel provided with a solar energy conversion device such as a solar cell.

[0002]

2. Description of the Related Art Conventionally, there is a solar energy conversion device such as a solar cell or a solar heat collector which converts solar energy so that it can be used as electricity or hot water. Such a device is generally installed on the roof of a house or the like.
When installing solar cells on the roof, in order to prevent accidents such as leakage due to water, solar cells, which are solar cells, are placed inside a flat waterproof case and installed as solar panels. Is preferred. The solar panel is arranged along the slope of the roof at the periphery of a flat waterproof case containing a predetermined number of solar cells in order to obtain a predetermined voltage and power with one solar panel. And two horizontal frames connecting the upper and lower ends of these vertical frames to each other.

[0003] As an installation structure of such a solar cell panel, a pair of elongated rail-shaped support members are laid along the inclined direction on a roof base plate, and both end edges of the solar cell panel are laid by the pair of support members. Although there is an installation structure for supporting, in this structure, since the joint between adjacent solar cell panels is exposed to the outside, rainwater or the like may enter from this joint. In order to prevent rainwater or the like from entering from this seam, a conventional example in which a rubber gasket is interposed between vertically opposed frames of adjacent solar energy conversion panels (see Japanese Patent Application Laid-Open No. H7-180310, etc.) ).

[0004]

In the above-described conventional example in which a gasket is interposed between seams between vertically opposed frames of adjacent solar energy conversion panels, the gasket has an advantage that the waterproofness is improved. However, since this gasket is made of rubber, there is a problem in durability. Therefore, since it is necessary to ensure high waterproofness with the rail-shaped support member, not only the shape and material of the support member are limited, but also the appearance of the joint between the solar cell panels is impaired. .

[0005] It is an object of the present invention to provide a waterproof structure for a seam of a solar energy conversion panel in which the appearance of the seam is not impaired.

[0006]

According to the present invention, a first engaging portion is formed on each of the vertical frames of the adjacent solar energy conversion panels facing each other, and the first engaging portion is provided with a first engaging portion. The above-mentioned object is achieved by engaging the two engaging portions. Specifically, the waterproof structure of the seam of the solar energy conversion panel of the present invention will be described with reference to the drawings. , 37, 47, 57, respectively, solar energy conversion panels 1, 21, 31, 41,
The vertical frames 7, 51 facing each other of the solar energy conversion panels 1, 21, 31, 41,
A waterproof structure of a joint of a solar energy conversion panel for preventing rainwater or the like from entering into the roof from a joint formed between the joints 27, 37, 47, and 57. Panels 1, 21, 31, 4
The first engagement portions 7C, 27C, 37C, 47C, and 57C are respectively formed on the vertical frames 7, 27, 37, 47, and 57 of the first and first 51, and the first engagement portions 7C, 27C, and 37C are formed.
C, 47C, and second engagement portions 9B and 29 that engage with 57C.
B, 39B, 59B, plate-shaped closing members 9, 29,
39, 59, the adjacent solar energy conversion panels 1,
Vertical frames 7, 27, 3 adjacent to 21, 31, 41, 51
The seam formed between 7, 47, 57 is closed,
A dent for running rainwater into the closing members 9, 29, 39, 59
It is characterized by having been formed .

In the present invention having this configuration, a plurality of solar energy conversion panels 1, 21, 31, 41, 51 are manufactured in a factory, and the panels 1, 21, 31, 41, 51 are manufactured.
The first engaging portions 7 are attached to the vertical frames 7, 27, 37, 47, 57 of
C, 27C, 37C, 47C, and 57C are formed.
These solar energy conversion panels 1, 21, 31, 4
1,51 are arranged side by side on the roof, and then the adjacent solar energy conversion panels 1,21,31,
Vertical frames 7, 27, 37, 4 of 41, 51 facing each other
7, 57 first engagement portions 7C, 27C, 37C, 47
C and 57C are provided with plate-like closing members 9 and 2 manufactured in advance.
9, 39, 59 second engagement portions 9B, 29B, 39B,
59B, and the adjacent solar energy conversion panels 1,
The joint between 21, 31, 41, and 51 is closed. Therefore, adjacent solar energy conversion panels 1, 21, 31,
When waterproofing the joint between 41 and 51, it is not necessary to use a rubber gasket which easily deteriorates.
The seam appearance is not impaired.

Further , the solar energy conversion panel of the present invention
The waterproof structure of the seam is arranged on the roof 2
Vertical frames 7, 27, 37, 47 along the inclination direction of the roof 2
Solar energy conversion panels 1 and 2 each having 57
Solar energy adjacent to left and right at 1,31,41,51
Energy conversion panels 1, 21, 31, 41, 51
Formed between facing vertical frames 7, 27, 37, 47, 57
Prevent rainwater from entering the roof from the joint
Waterproof structure of the solar energy conversion panel
And the solar energy conversion panels 1 and 2 adjacent to the left and right
1, 31, 41, 51 vertical frames 7, 27, 37, 47, 5
7, first engagement portions 7C, 27C, 37C, 47C, 5
7C, and these first engagement portions 7C, 2
2nd engagement part engaged with 7C, 37C, 47C, 57C
Plate-shaped closing member having 9B, 29B, 39B, 59B
At 9, 29, 39, 59 the adjacent solar energy conversion
Vertical frames 7, adjacent to panels 1, 21, 31, 41, 51,
Push along the roof inclination direction between 27, 37, 47 and 57.
The seam is closed by inserting. This
Here , the first engagement portions 7C, 27C, 37C, 47
C, 57C are recesses, and the second engagement portions 9B, 29B, 3
9B and 59B may be convex portions. In this structure, the first
Of the engaging portions 7C, 27C, 37C, 47C, 57C and the second
The seams can be easily closed by the closing members 9, 29, 39, 59 only by fitting the engaging portions 9B, 29B, 39B, 59B into the male and female.

Further, the closing members 9, 29, 39, 5
9 are the first engaging portions 7C, 27C, 37C, 47
C, 57C and the second engaging portions 9B, 29B, 39B,
A structure having a cover portion 9C that covers the upper part of the engagement portion with 59B may be adopted. In this structure, since the upper part of the engagement portion between the engagement portions is covered with the cover 9C, rainwater hardly enters the engagement portion, and sufficient waterproof performance can be secured. Further, the recesses 7C and 27C may be configured to open in the horizontal direction. In this structure, the closing members 9 and 29 are pushed in between the longitudinal members 7 and 27 facing each other along the roof inclination direction, thereby forming the vertical members 7 and 27.
Concave portions 7C, 27C and convex portions 9B, 2 of closing members 9, 29.
9B can be smoothly engaged.

On the other hand, the recesses 37C and 47C have a structure in which the recesses 37C and 47C are opened upward and have a constricted portion 37D inside. A structure having a bulging tip 39C to be engaged may be adopted. In this structure, the closing member 39 is provided between the vertical members 37 and 47 facing each other.
Of the vertical members by pushing the
The recesses 7 and 47 are securely engaged with the projections of the closing member 39, so that the closing member 39 does not come off. In addition, the upper portion of the engaging portion between the engaging portions is covered with the closing member 39. Therefore, it is difficult for rainwater to enter the engagement portion.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Here, in each embodiment,
The same components are denoted by the same reference numerals, and the description is omitted or simplified. FIGS. 1 and 2 show a mounting structure 3 for installing a solar cell panel 1 as a solar energy conversion panel according to the first embodiment on a roof 2. In these figures, a mounting structure 3 fixes a solar cell panel 1 with a rail-shaped support member 5 mounted on a base plate 4 of a roof 2. Are arranged in plurals. The field board 4 is a face material such as plywood, and has a sheet material 4A such as asphalt roofing on the surface.
Is attached.

The solar cell panel 1 has a flat, completely waterproof case 6 containing a predetermined number of solar cells, and two vertical frames 7 and two horizontal frames 8 attached to the periphery of the case 6. The two vertical frames 7 are arranged along the inclination direction of the roof, and the two horizontal frames 8 are arranged along the left and right directions of the roof so as to connect the upper and lower ends of the vertical frame 7. The case 6 and the frames 7 and 8 are waterproofed and reinforced, and the internal solar cell is protected from accidents such as electric leakage and short circuit due to rainwater, a load applied to the surface of the solar cell panel 1, and the like. .

The vertical frame 7 includes a leg 7A provided below,
It has a support portion 7B formed above the leg portion 7A and supporting the waterproof case 6, and a first engagement portion 7C formed above the support portion 7B. A fixing flange 7D protruding outward is formed at a lower end portion of the outer side surface. Right and left solar panels 1
Locking portions 7C formed on the vertical frames 7 facing each other
Are paired, and the pair of first engagement portions 7
C are concave portions opened to each other in the horizontal direction. The horizontal frame 8 has a leg (not shown) and a support for supporting the waterproof case 6. These frames 7 and 8 are formed by extruding aluminum.

Adjacent vertical frames 7 of adjacent solar cell panels 1
The seam formed between them is closed by the closing member 9.
The closing member 9 includes a flat main body 9A and the main body 9A.
A second engaging portion 9B formed on both sides of the first engaging portion 7C and engaging with the first engaging portion 7C, and a cover for covering above an engaging portion between the first engaging portion 7C and the second engaging portion 9B. And an aluminum plate having a portion 9C. This closing member 9 is formed by extrusion molding. The second engaging portion 9B is a convex portion which is male and female fitted to the first engaging portion 7C of the concave portion and formed on the same plane as the main body 9A. The cover 9C is formed at two places on the upper surface of the main body 9A, and the recess formed between these covers 9C has a function of a gutter for flowing rainwater.

The support member 5 has a trough portion 5A having a U-shaped cross section with an upper opening, and a pipe portion 5B having a quadrangular cross section integrally provided below the trough portion 5A.
It is formed by extruding aluminum. Gutter part 5A
Receives the legs 7A of the solar cell panel 1 and collects rainwater or the like that has fallen on the solar cell panel 1 and drains it to the eaves. A leg portion 7A is placed on the bottom 5C of the gutter portion 5A, and a tapping screw 10 that passes through a fixing flange 7D of the leg portion 7A is screwed.

The pipe portion 5B is a tubular member whose side surface on the side of the solar cell panel 1 is inclined and whose bottom surface side is reduced, and rainwater that enters from a screw hole of the bottom portion 5C of the gutter portion 5A screwed with the tapping screw 10. Are drained to the eaves.
A mounting flange 5D protrudes from the inclined side surface of the pipe 5B near the lower end. The support member 5 is fixed by screwing a screw 11 that penetrates the mounting flange 5D to the base plate 4.

Packing members 12 and 13 are interposed between the side surfaces of the adjacent support members 5 that abut against each other. These packing members 12 and 13 are formed of a foamed plastic having elasticity. A waterproof tape 14 is attached over these support members 5. The waterproof tape 14 has a back surface coated with an adhesive. In the present embodiment, the vertical frame 7, the closing member 9, the packing members 12, 13 of the solar cell panel 1 are provided.
A waterproof structure of the joint of the solar cell panel 1 is constituted by the waterproof tape 14.

In this embodiment, the solar cell panel 1, the support member 5, the closing member 9 and the like are manufactured in advance. At this time, a first engaging portion 7C is formed in the vertical frame 7 of the solar cell panel 1, and packing members 12 and 13 are attached to the support member 5. When the work of attaching the base plate 4 to the roof 2 is completed, the support member 5 is laid at a predetermined position, the waterproof tape 14 is attached over the adjacent support member 5, and a plurality of The solar cell panels 1 are arranged and fixed vertically and horizontally.

Thereafter, the second engaging portion 9B of the plate-like closing member 9 is engaged with the first engaging portion 7C of the vertical frame 7 of the adjacent solar cell panels 1 facing each other. Close the joint between the solar panels. Therefore, the closing member 9 is pushed between the vertical members 7 facing each other in the roof inclination direction. As the closing member 9, a member cut to a predetermined size in accordance with the vertical size of each solar cell panel 1 may be used, or a member longer than the vertical size of the solar cell panel 1 may be prepared, and It may be cut to a predetermined size.

Therefore, according to the first embodiment, the first engaging portions 7C are respectively formed in the corresponding vertical frames 7 of the solar cell panels 1 adjacent to each other on the left and right, and the first engaging portions 7C are formed. Since the joints of the solar cell panels 1 adjacent to each other on the left and right sides are closed by the plate-shaped closing member 9 having the second engaging portion 9B engaged with the portion 7C, the joints are made of rubber which is easily deteriorated when waterproofing the joints. It is not necessary to use the gasket, so that the appearance of the joint is not impaired. Furthermore, when the solar cell panel 1 is arranged on the roof 2 via a plurality of support members 5, these support members 5 can be made simple and inexpensive. Also, since the closing member 9 is formed from an aluminum plate, the water resistance of aluminum itself is strong,
The durability of the waterproof structure is further improved, and the aluminum is lightweight and easily processed, so that the closing member 9 can be easily handled.

Further, the first engaging portion 7C is formed as a concave portion,
Since the second engaging portion 9B is a convex portion, these engaging portions 7B
The seam can be easily closed by the closing member 9 only by fitting the male and female C and 9B. Further, since the closing member 9 has a structure having a cover 9C that covers the upper part of the engagement between the first engagement part 7C and the second engagement part 9B, the engagement part 7
Since the upper part of the engaging portion between C and 9B is covered with the cover 9C, it is difficult for rainwater to enter this engaging portion, and sufficient waterproof performance can be secured.

Further, since the concave portion forming the first engaging portion 7C is opened in the horizontal direction, the closing member 9 is pushed along the roof inclined direction between the vertical members 7 facing each other. Thereby, the first engagement portion 7C of the vertical member 9 and the second engagement portion 9B of the closing member 9 can be smoothly engaged. In addition, the solar cell panel 1 is arranged on the plurality of support members 5, packing members 12 and 13 are interposed between the side surfaces of the adjacent support members 5, and the waterproof tape 14 extends over these support members 5. , A good waterproof performance can be obtained.

Next, a second embodiment of the present invention will be described with reference to FIG. The second embodiment is different from the first embodiment in the configuration of the first engaging portion and the closing member of the vertical frame, and the other configurations are the same as the first embodiment.
In FIG. 3, the solar cell panel 21 includes the complete waterproof case 6 and two vertical frames 2 attached to the periphery of the case 6.
7 and two horizontal frames 8, and two vertical frames 27
Are arranged along the inclination direction of the roof. Although not shown in FIG. 3, the solar cell panel 21 is disposed on the support member 5 (see FIGS. 1 and 2).

The vertical frame 27 has the leg portion 7A, the support portion 7B, and a first engagement portion 27C formed above the support portion 7B. The first locking portions 27C formed on the vertical frames 27 of the solar cell panels 21 adjacent to each other on the left and right are paired, and the paired first engaging portions 27C are arranged in the horizontal direction. The recesses are open in opposite directions. The joint formed between the adjacent vertical frames 27 of the adjacent solar cell panels 21 is closed by a closing member 29.

The closing member 29 has a plate-like main body 29A.
And a first portion formed by being bent from both sides of the main body 29A.
And a second engaging portion 29B that engages with the engaging portion 27C. The closing member 29 is formed by extrusion molding. A recess having the function of a gutter for flowing rainwater to the eaves is formed in the center of the main body 29A. Second
The engaging portion 29B is a convex portion that male and female fits with the first engaging portion 27C.

Therefore, in the second embodiment, in addition to having the same operation and effect as in the first embodiment, the closing member 29 is bent from both sides of the main body 29A to form the second engaging portion 29B. And the second engagement portion 29B is
7, so as to engage with the first engagement portion 27C.
Since the upper part of the engagement portion between the engagement portions 27C and 29B is covered with the main body 29A of the closing member 29, sufficient waterproof performance can be secured without providing the cover 9C of the first embodiment. .

Next, a third embodiment of the present invention will be described with reference to FIG. The third embodiment is different from the second embodiment in the configuration of the first engaging portion and the closing member of the vertical frame, and the other configurations are the same as the second embodiment.
In FIG. 4, the solar cell panel 31 includes the complete waterproof case 6 and two vertical frames 3 attached to the periphery of the case 6.
7 and two horizontal frames 8, and two vertical frames 37.
Are arranged along the inclination direction of the roof. Although not shown in FIG. 4, the solar cell panel 31 is disposed on the support member 5 (see FIGS. 1 and 2).

The vertical frame 37 has the leg portion 7A, the support portion 7B, and a first engagement portion 37C formed on the side of the support portion 7B. The first formed on the vertical frame 37 of the solar cell panel 31 adjacent to the left and right adjacent to each other.
The locking portions 37C are paired, and the paired first engaging portions 37C are concave portions that open upward and have a constricted portion 37D inside. The joint formed between the adjacent vertical frames 37 of the adjacent solar cell panels 31 is closed by a closing member 39.

The closing member 39 is connected to the main body 29A,
It has a second engaging portion 39B that projects from the lower surface of the main body 29A and engages with the first engaging portion 37C. The second engagement portion 39B is a projection having a bulging tip 39C that engages with the constriction 37D. The closing member 39 is formed by extruding aluminum.

Therefore, in the third embodiment, the same operation and effect as those of the first embodiment can be obtained. In addition, the first engagement portion 37C is opened upward and is formed inside. A convex portion having a constricted portion 37D, and a first engaging portion 39B protrudes from a lower surface of the main body 39A of the closing member 39 and a bulging tip 39 which engages with the constricted portion 37D.
C, the first engaging portion 39B of the vertical member 37 and the closing member 39 are pushed between the vertical members 37 facing each other by pushing the closing member 39 toward the roof inclined surface.
Can be reliably engaged with the second engaging portion 39B, the closing member 39 does not come off, and the engaging portions 37C, 39
Since the upper part of the engagement part between B is covered with the closing member 39, it is difficult for rainwater to enter this engagement part, and the waterproof property is improved.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The fourth embodiment is different from the third embodiment in the configuration of the first engagement portion of the vertical frame, and the other configuration is the same as the third embodiment. In FIG. 5, a solar cell panel 41 includes the complete waterproof case 6,
It has two vertical frames 47 and two horizontal frames 8 attached to the peripheral edge of the case 6, and the two vertical frames 47 are arranged along the inclination direction of the roof. This solar panel 4
Although not shown in FIG. 4, 1 is disposed on a support member 5 (see FIGS. 1 and 2).

The vertical frame 47 has the leg 7A, the support 7B, and a first engagement portion 47C formed above the support 7B. This first engagement portion 47
C opens upward and has a constricted portion 37 inside.
D is a concave portion. The seam formed between the adjacent vertical frames 47 of the adjacent solar cell panels 41 is
It is closed at 9.

Therefore, in the fourth embodiment, in addition to having the same operation and effect as in the third embodiment, the first engagement portion 47C is formed above the support portion 7B.
Since the size between the mutually opposing vertical frames 47 of the adjacent solar cell panels 41 can be increased, the work of mounting the solar cell panels 41 on the roof can be easily performed.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The fifth embodiment is different from the second embodiment in the configuration of the first engaging portion and the closing member of the vertical frame, and the other configuration is the same as the second embodiment.
In FIG. 6, a solar cell panel 51 includes the complete waterproof case 6 and two vertical frames 5 attached to the periphery of the case 6.
7 and two horizontal frames 8, and two vertical frames 57.
Are arranged along the inclination direction of the roof. Although not shown in FIG. 6, the solar cell panel 51 is disposed on the support member 5 (see FIGS. 1 and 2).

The vertical frame 57 has the leg 7A, the support 7B, and a first engaging portion 57C formed on the side of the support 7B. The first formed on the vertical frame 57 of the solar cell panel 51 adjacent to the left and right adjacent to each other.
Are formed as a pair, and the first engaging portions 57C forming the pair are stepped portions facing each other. The joint formed between the adjacent vertical frames 57 of the adjacent solar cell panels 51 is closed by a closing member 59.

The closing member 59 is connected to the main body 29A,
While projecting from the lower surface at the center of the main body 29A, the first
And a second engaging portion 59B that engages with the engaging portion 57C. The second engaging portion 59B is a convex portion having a bulging tip 59C that engages with the pair of first engaging portions 57C.
The closing member 59 is formed by extruding aluminum. Therefore, in the fifth embodiment, the same functions and effects as those of the third embodiment can be obtained.

Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited to these embodiments, and various modifications and designs of the present invention are possible without departing from the gist of the present invention. Changes are possible. For example, the solar energy conversion panel is not limited to the solar cell panels 1, 21, 31, 41, and 51 provided with solar cells, but may be a panel provided with a solar heat collector or the like through which a heat medium such as water flows. In short, what is necessary is just to be able to convert solar energy so that it can be used at home or the like.

Further, in each of the above embodiments, the solar cell panels 1, 21, 31, 41, 51 are arranged on the roof 2 via the plurality of support members 5, but in the present invention, the solar cell panel 1 is provided. , 21, 31, 41, 51 may be arranged directly on the roof 2. Assuming that solar cell panels 1 and 2
Even when 1, 31, 41, and 51 are arranged on the roof 2 via a plurality of support members 5, the packing members 12, 13 are interposed between the side surfaces of the adjacent support members 5, and
It is not always necessary to attach the waterproof tape 14 over these support members 5.

The closing members 9, 29, 39, 59 may be made of a material other than aluminum, for example, a metal such as iron, a hard plastic, or the like. When a material having low water resistance such as iron is used, it is necessary to coat the surface with a waterproof coating. Further, the first engagement portions 7C, 27C,
37C and 47C are convex portions, and the second engaging portions 9B and 29
B and 39B may be concave portions. However, as in the above embodiments, the first engaging portions 7C, 27C, 37C, 4
If 7C is a concave portion and the second engaging portions 9B, 29B, and 39B are convex portions, the structure of the closing members 9, 29, and 39 can be simplified.

[0040]

As described above, according to the present invention, the first engaging portions are respectively formed on the corresponding vertical frames of the solar energy conversion panels adjacent to each other on the left and right, and these first engaging portions are formed. Since the joints of the solar cell panels adjacent to each other on the left and right sides are closed by the plate-like closing member having the second engaging portion to be engaged, when waterproofing the joints, a rubber gasket that easily deteriorates is not used. The appearance of the seam can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the first embodiment.

FIG. 3 is a cross-sectional view illustrating a main part of a second embodiment of the present invention.

FIG. 4 is a sectional view showing a main part of a third embodiment of the present invention.

FIG. 5 is a sectional view showing a main part of a fourth embodiment of the present invention.

FIG. 6 is a sectional view showing a main part of a fifth embodiment of the present invention.

[Explanation of symbols]

1,21,31,41,51 Solar panel as solar energy conversion panel 2 Roof 7,27,37,47,57 Vertical frame 7C, 27C, 37C, 47C, 57C First engagement part 9,29, 39,59 closing member 9B, 29B, 39B, 59B 2nd engaging part 9C cover part 37D constriction 39C bulging tip

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04D 13/18 E04D 3/38 E04D 3/40

Claims (6)

(57) [Claims] 1. A solar energy conversion panel having a plurality of vertical frames arranged on the roof on the left and right and extending in the inclination direction of the roof, respectively, formed between mutually opposed vertical frames of the solar energy conversion panels adjacent on the left and right. A waterproof structure of a solar energy conversion panel that prevents rainwater or the like from entering the inside of a roof from a seam to be formed. Are formed respectively, and between the adjacent vertical frames of the adjacent solar energy conversion panels by a plate-shaped closing member having a second engagement portion engaged with the first engagement portion. The formed seam is closed , and rainwater flows through the closing member.
The waterproof structure of the joint of the solar energy conversion panel, characterized by forming a dent for making the connection. 2. A plurality of roofs arranged side by side on the roof.
Solar energy conversion with each vertical frame along the direction
Solar energy conversion panels next to each other on the panel
From the seams formed between the vertical frames facing each other
Solar energy to prevent water from entering the roof
-It is a waterproof structure of the joint of the conversion panel,
In the corresponding vertical frame of the solar energy conversion panel that fits
Form first engagement portions, respectively, and
Plate-shaped closing member having a second engaging portion that engages with the joining portion
The adjacent vertical sides of the adjacent solar energy conversion panels.
The seam is pushed between the frames along the roof inclination direction.
The waterproof structure of the joint of the solar energy conversion panel, which is closed . 3. The waterproof structure for a joint of a solar energy conversion panel according to claim 1 , wherein the first engaging portion is a concave portion, and the second engaging portion is a convex portion. Waterproof structure of the joint of solar energy conversion panel. 4. The waterproof structure for a joint of a solar energy conversion panel according to claim 3, wherein the closing member is provided above an engagement portion between the first engagement portion and the second engagement portion. A waterproof structure for a joint of a solar energy conversion panel, comprising a cover part for covering. 5. The waterproof structure for a joint of a solar energy conversion panel according to claim 3, wherein the concave portion is opened in a horizontal direction. . 6. The waterproof structure for a joint of a solar energy conversion panel according to claim 3, wherein the concave portion is opened upward and has a narrow portion inside, and the convex portion is formed from a lower surface of the closing member. A seam waterproofing structure for a solar energy conversion panel having a bulging tip that protrudes and engages the constriction.