JP2011159735A - Solar cell module, and solar cell system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a solar cell module in which optimally designed strength can be secured by restricting a position of a fixing fitting and furthermore the fixing direction of the fixing fitting is not restricted. <P>SOLUTION: A solar cell module has: a solar cell panel 70 constituted of a plurality of solar cells arranged and sealed; and a frame member 10 surrounding over the entire circumference of an outer edge of the solar cell panel 70. The frame member 10 has a U-shape part (edge holding part) 11 holding the outer edge of the solar cell panel 70 and a projection 17 projecting from a rear surface of the U-shape part (edge holding part) 11 in an outward direction, wherein a notch 18 for the engagement of a fixing fitting 30 for fixing the frame member 10 to a rack 90 is provided in a part of the projection 17. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a solar cell module and a solar cell system having a solar cell panel in which a plurality of solar cells are arranged, and a frame member that surrounds the outer edge of the solar cell panel over the entire circumference.

  Conventionally, a transparent substrate (glass) is arranged on the light receiving surface side, a plurality of solar cells connected in series are arranged side by side on the back surface side of the transparent substrate, and the plurality of solar cells are sealed with a sealing resin. There is known a method of stopping and configuring a solar cell panel. Moreover, in such a solar cell panel, in general, for the purpose of protecting the peripheral portion of the panel and ensuring the strength, the peripheral portion of the panel is surrounded by a frame member over the entire periphery. A predetermined strength is secured by the transparent substrate and the frame.

  The solar cell module having such a structure is generally attached to a roof, for example, by a method of fixing to a pedestal with bolts using an attachment hole provided on the lower surface of the frame member of the solar cell module. However, there is a problem in workability because it is fixed from the back side of the solar cell module. Therefore, for example, as in the solar cell module disclosed in Patent Document 1, a method of fixing to a gantry with a fixing bracket that can be fixed from the upper surface side has been proposed.

JP-A-10-176403

  Conventionally, when a solar cell module is fixed to a pedestal with a fixing bracket, a structure for defining the position of the fixing bracket in the direction along the frame member is not particularly provided in the outer portion of the solar cell module. As in the disclosed solar cell module, fixing is performed by sandwiching from the upper surface of the frame member using a fixture. Therefore, the fixing position is arbitrary, and the cantilever length of the solar cell module from the fixing position becomes indefinite. Therefore, the solar cell module may be fixed in a state where the installation strength is not sufficiently secured, The frame is held by the frictional force between the frame and the frame member. If the fixing bracket is loosened, there is a risk of dropping the solar cell module. There is a problem that it is limited to fixing in the vertical direction, and as a result, the cost of the gantry is increased.

  The present invention has been made in view of the above, and it is possible to ensure optimally designed strength by limiting the position of the fixing bracket, and further, a solar cell module that does not limit the fixing direction of the fixing bracket, and The purpose is to obtain a solar cell system.

  In order to solve the above-described problems and achieve the object, a solar cell module according to the present invention includes a solar cell panel in which a plurality of arranged solar cells are sealed, and an outer edge portion of the solar cell panel all around. A frame member that surrounds the frame member, and the frame member is engaged with a fixing bracket for fixing the solar cell module to the gantry, and an engagement portion is provided to restrict the movement of the frame member of the fixing bracket in the longitudinal direction. It is characterized by.

  Moreover, the solar cell module according to the present invention includes a solar cell panel formed by sealing a plurality of arranged solar cells, and a frame member that surrounds the outer edge of the solar cell panel over the entire circumference. , Having an edge holding part for holding the outer edge part of the solar cell panel and a protruding part projecting outward from the back surface of the edge holding part, and fixing for fixing the frame member to the pedestal at a part of the protruding part A notch for engaging the metal fitting is provided.

  Moreover, the solar cell system according to the present invention includes a solar cell panel formed by sealing a plurality of arranged solar cells, and a frame member that surrounds the outer edge of the solar cell panel over the entire circumference, and has a predetermined direction. A plurality of solar cell modules provided in parallel to each other, and a fixing metal fitting that is sandwiched between the first solar cell module and the second solar cell module adjacent to each other in the provided direction and fixes the solar cell modules to the gantry. In the battery system, the frame member is provided with an engaging portion that engages with the fixing metal and restricts movement of the frame member of the fixing metal in the longitudinal direction.

  According to the present invention, the fixing bracket is engaged at a predesigned position of the frame member, and the movement from the engaging position is further restricted. Therefore, the fixing position by the fixing bracket is limited, the desired strength can be ensured, and the fixing bracket is restricted from moving from the engagement position, so that the solar cell module parallel to the inclination direction of the roof or the like Even if the fixing bracket is disposed on the frame member, the solar cell module can be prevented from falling off.

FIG. 1 is a perspective view of a first embodiment of a solar cell module according to the present invention. FIG. 2 is a front view of the solar cell module. FIG. 3 is a top view of a solar cell system in which a solar cell module is attached to a base of a building such as a house or a building with a fixing bracket or the like. 4 is a perspective view including a cross section taken along line AA of FIG. 2 showing a cross-sectional shape of the frame member. FIG. 5 is a cross-sectional view including a cross section taken along line BB in FIG. 2 showing a frame member between adjacent solar cell modules. FIG. 6 is an enlarged view of the notch portion of the second embodiment of the solar cell module according to the present invention. FIG. 7 is an enlarged view of the notch portion of the third embodiment of the solar cell module according to the present invention. FIG. 8: is a perspective view including the cross section which shows the cross-sectional shape of the frame member of Embodiment 4 of the solar cell module concerning this invention. FIG. 9: is a perspective view including the cross section which shows the cross-sectional shape of the frame member of Embodiment 5 of the solar cell module concerning this invention.

  Embodiments of a solar cell module according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a perspective view of Embodiment 1 of a solar cell module according to the present invention, and shows a state in which a frame member is attached to a solar cell panel. FIG. 2 is a front view of the solar cell module. 1 and 2, a solar cell module 80 includes a solar cell panel 70 formed by resin-sealing a plurality of solar cells 60, and a frame member 10 that surrounds the outer edge of the solar cell panel 70 over the entire circumference. And have.

  The solar cell panel 70 has a transparent substrate (glass) (not shown) disposed on the light receiving surface side, and a plurality of solar cells 60 connected in series or in parallel on the back surface side of the transparent substrate. The battery cell 60 is produced by sealing with a resin such as EVA (ethylene vinyl acetate) or an electrically insulating material such as PET (polyethylene terephthalate).

  The frame member 10 is manufactured by extrusion molding of aluminum or the like, and has a U-shaped portion having a U-shaped cross section over the entire circumference. The outer edge portion of the solar cell panel 70 is surrounded by the U-shaped portion around the entire circumference. Covering over. The frame member 10 is fixed to the solar cell panel 70 via a butyl sealant or a silicon adhesive, and reinforces the solar cell panel 70.

  FIG. 3 is a top view of a solar cell system in which a solar cell module is attached to a base of a building such as a house or a building with a fixing bracket or the like. In FIG. 3, the frame member 10 allows the solar cell panel 70 to be attached to a gantry 90 provided in a building such as a house or a building using the fixing bracket 30. The solar cell system is sandwiched between a plurality of solar cell modules 80 that are provided side by side in a predetermined direction, and a first solar cell module 80 and a second solar cell module 80 that are adjacent to each other in the provided direction. , 80 and the fixing bracket 30 that fixes the frame 90 to the gantry 90. Since the solar cell module 80 is generally rectangular and has different lengths in length and width, the solar cell module 80 is installed vertically or horizontally in accordance with the shape of the roof or the frame. In the present embodiment, the solar cell module 80 has the frame member 10 with the notch 18 in the roof surface flow direction with respect to the gantry 90 extending in the roof surface flow direction (inclination direction: X direction in FIG. 3). Installed so as to be orthogonal.

  FIG. 4 is a perspective view including a cross section taken along line AA of FIG. 2 showing a cross-sectional shape of the frame member 10. FIG. 5 is a cross-sectional view including a cross section taken along line BB in FIG. 2 showing a frame member between adjacent solar cell modules. The frame member 10 according to the present embodiment has a U-shaped cross section and has a U-shaped part (edge holding part) 11 that sandwiches the outer edge of the solar cell panel 70 over the entire circumference, and the back surface of the U-shaped part 11. A protruding portion 17 extending in the opposite direction to the solar cell panel 70, a plate-like portion 15 extending from the U-shaped portion 11 to the back side of the panel, and an inner flange formed extending from the lower end of the plate-like portion 15 to the inside of the panel Part 13. The protruding portion 17 is provided with a notched portion 18 formed by partially cutting a predetermined position in the longitudinal direction.

  The protruding portion 17 is configured on the same plane as the upper surface portion 11 a of the U-shaped portion 11 of the frame member 10. Thereby, the surface of the frame member 10 becomes the same surface, and it is installed with good design.

  The notch 18 is provided to attach the mounting bracket 30 for fixing the frame 90 and the gantry 90 attached to the frame member 10 vertically or in parallel to the roof plane on the back surface side of the solar cell panel 70. The frame member 10 includes one cut-out side 18 a parallel to the frame member 10 and two cut-out sides 18 b perpendicular to the frame member 10. The notch 18 constitutes an engaging portion that engages with the fixing bracket 30 and restricts the movement of the frame member 10 of the fixing bracket 30 in the longitudinal direction. The length of the frame member 10 in the longitudinal direction of the notch 18 is actually longer than the length of the fixture 30 as shown in FIG.

  The cut-out side 18a is provided on the outer surface of the panel of the plate-like portion 15 of the frame member 10 in order to increase the holding strength of the module by bringing the side plate-like portion 33 of the fixture 30 and the plate-like portion 15 of the frame member 10 into contact with each other. 15a is configured on the same plane. That is, in order to increase the holding strength of the module by bringing the side plate-like portion 33 of the fixture 30 into contact with the plate-like portion 15 of the frame member 10, the notch portion 18 is cut out over substantially the entire width of the protruding portion 17. Forming.

  The fixing bracket 30 has a U-shaped cross section in order to fix two adjacent solar cell modules 80 at a time, and the notch 18 and the second notch 18 of the first solar cell module 80 are respectively formed at both ends of the U-shaped cross section. The solar cell module 80 has a claw that fits into the notch 18. The notch 18 is configured at approximately the same position symmetrically about the center axis of the panel on two opposing sides of the frame member 10 attached to the outer edge of the solar cell panel 70. The notch 18 is a cut amount that accommodates approximately half of the fixing bracket 30, and the solar cell modules 80 adjacent to each other with the fixing bracket 30 in contact with each other have the leading edges of the protrusions 17 in contact with each other. Further, in order to prevent the solar cell module 80 from rotating, the notch 18 is provided at two or more locations on the same side of the frame member 10.

  As described above, the solar cell module 80 of the present embodiment includes the solar cell panel 70 in which a plurality of the solar cells 60 are sealed, and the frame member 10 that surrounds the outer edge of the solar cell panel 70 over the entire circumference. The frame member 10 includes a U-shaped portion (edge holding portion) 11 that holds the outer edge portion of the solar cell panel 70, and a protruding portion 17 that protrudes outward from the back surface of the U-shaped portion 11. A notch portion (engagement portion) 18 for engaging with a fixture 30 for fixing the frame member 10 to the gantry 90 is provided in a part of the projecting portion 17.

  Moreover, the solar cell system of the present embodiment includes a solar cell panel 70 formed by sealing a plurality of arranged solar cells, and a frame member 10 that surrounds the outer edge of the solar cell panel 70 over the entire circumference. A plurality of solar cell modules 80 arranged in a predetermined direction and the first solar cell module 80 and the second solar cell module 80 adjacent to each other in the arrangement direction are sandwiched between the two solar cell modules 80 on the gantry 90. This is a solar cell system that includes a fixing bracket 30 to be fixed. The frame member 10 is engaged with the fixing bracket 30, and a notch (engaging portion) that restricts the movement of the fixing bracket 30 in the longitudinal direction of the frame member 10. ) 18 is provided.

  In the present embodiment, with the above-described configuration, the fixing bracket is restricted and fixed at a pre-designed position, so that the fixing position is limited, a desired strength can be secured, and a roof or the like can be secured. Even if the fixing bracket is arranged on the frame member of the solar cell module parallel to the tilt direction, the solar cell module can be prevented from falling off.

Embodiment 2. FIG.
FIG. 6 is an enlarged view of the notch portion of the second embodiment of the solar cell module according to the present invention. In the cutout portion 18 of the present embodiment, the cutout sides 18b facing each other are configured to have the same width or gradually narrower from the cutout side 18a side toward the cutout outer edge portion. That is, the notch portion 18 of the present embodiment is formed to be surrounded by opposing notch sides (oblique sides) 18b, and the notch portion is narrow on the entrance side of the notch and gradually becomes wider toward the back side. . Other configurations are the same as those of the first embodiment.

  As described above, since the solar cell module 80 is generally vertically and horizontally different in length, the solar cell module 80 is installed vertically or horizontally in accordance with the shape of the roof or the gantry. In the case of being installed parallel to the surface flow direction, in order to prevent the fixing bracket 30 from coming into contact with the cut-out side 18b even if the fixing bracket 30 is loosened due to this configuration and the solar cell module 80 slides down. It is.

Embodiment 3 FIG.
FIG. 7 is an enlarged view of the notch portion of the third embodiment of the solar cell module according to the present invention. In FIG. 7, the notch 18 is formed surrounded by rectangular step-shaped notch sides 18 b and is widened in two steps toward the back side. Other configurations are the same as those of the first embodiment. Also in the notch portion 18 of the present embodiment, the substantially same effect as that of the second embodiment can be obtained.

Embodiment 4 FIG.
FIG. 8: is a perspective view including the cross section which shows the cross-sectional shape of the frame member of Embodiment 4 of the solar cell module concerning this invention. In the present embodiment, the upper surface portion 11a of the U-shaped portion 11 of the frame member 10 is configured to have a level difference corresponding to the plate thickness of the upper surface plate-shaped portion 36 of the fixing bracket 30 that contacts the upper surface portion. Thereby, the protrusion part 17 and the upper surface plate-shaped part 36 of a fixing metal fitting become the same surface, and it does not protrude from the frame member 10, and installation with a better design property is attained.

Embodiment 5 FIG.
FIG. 9: is a perspective view including the cross section which shows the cross-sectional shape of the frame member of Embodiment 5 of the solar cell module concerning this invention. In the present embodiment, a cover 20 is attached to the notch 18. The cutout portion 18 is configured by being attached with a cover 20 that covers the cutout portion 18. The notch 18 becomes an opening when it is fixed by the fixing bracket 30, but can be installed with good design by attaching the cover 20. The cover 20 is made of rubber, resin, or metal having weather resistance.

  In the first to fifth embodiments, the engaging portion that engages with the fixing bracket 30 and restricts the movement of the frame member 10 in the longitudinal direction of the fixing bracket 30 is the notch formed in the protruding portion 17 of the frame member 10. Although it is the part 18, it does not need to be the notch part 18 in particular, For example, a recessed part etc. may be sufficient if it can prevent the positioning of the fixing metal fitting 30 and the removal of the solar cell module 80. However, even when the fixing bracket 30 is severely loosened, the cutout portion 18 can prevent the dropout, but the concave portion cannot.

  The edge holding portion of the frame member 10 of the first to fifth embodiments is a U-shaped portion 11 having a U-shaped cross section, but the shape of the edge holding portion is not limited to the U-shaped cross-section, and other shapes. But you can.

  As another embodiment, in order to achieve only the purpose of positioning the fixing bracket at a pre-designed fixing position, it is realized by marking the frame portion to determine the position of the fixing bracket. May be.

  As described above, the present invention is preferably applied to a solar cell module having a solar cell panel in which a plurality of solar cells are arranged and a frame member surrounding the outer edge of the solar cell panel over the entire circumference.

10 Frame member 11 U-shaped part (edge holding part)
11a Upper surface portion of U-shaped portion 13 Inner flange portion 15 Plate-like portion 17 Projecting portion 18 Notch portion 18a Notched side parallel to frame member 18b Notched side perpendicular to frame member 20 Cover 30 Fixing bracket 33 Side plate shape of fixing bracket Part 36 Upper surface plate-like part of fixing bracket 60 Solar cell 70 Solar panel 80 Solar cell module 90 Mount

Claims (16)

A solar panel formed by sealing a plurality of solar cells arranged; and
A frame member that surrounds the entire outer periphery of the solar cell panel,
The frame member is provided with an engaging portion that engages with a fixing bracket for fixing the solar cell module to a gantry and restricts movement of the fixing bracket in the longitudinal direction of the frame member. Solar cell module. The frame member is
An edge holding part for holding an outer edge part of the solar cell panel;
A projecting portion projecting outward from the back surface of the edge holding portion,
2. The solar cell module according to claim 1, wherein the engagement portion is a notch portion formed at substantially the same position in an axial symmetry of the frame member on two opposite sides of the solar cell module. . A solar panel formed by sealing a plurality of solar cells arranged; and
A frame member that surrounds the entire outer periphery of the solar cell panel,
The frame member is
An edge holding part for holding an outer edge part of the solar cell panel;
A projecting portion projecting outward from the back surface of the edge holding portion,
A solar cell module, wherein a part of the projecting portion is provided with a notch for engaging with a fixing bracket for fixing the frame member to a gantry. The solar cell module according to claim 3, wherein the notch is formed by being cut out over substantially the entire width of the protrusion. The notches are formed on two opposing sides of the frame member,
The solar cell module according to claim 3 or 4, wherein the solar cell module is provided at substantially the same position in axial symmetry. The solar cell module according to any one of claims 3 to 5, wherein the notch is provided at two or more locations on the same side of the frame member. The solar cell module according to any one of claims 3 to 6, wherein the cutout portion is narrow on the inlet side of the cutout and has a wide width on the backside.   The solar cell module according to claim 7, wherein the notch is formed so as to be surrounded by an inclined oblique side and gradually becomes wider toward the back side. The solar cell module according to claim 7, wherein the cutout portion is formed by being surrounded by a rectangular step-shaped side and is widened in two steps toward the back side. 10. The solar cell module according to claim 1, wherein an upper surface of the protruding portion is substantially flush with an upper surface of the edge holding portion. A step is formed at the engagement position of the fixing bracket on the upper surface of the edge holding portion so as to be lowered by the thickness of the fixing bracket so that the upper surface of the protruding portion and the upper surface of the fixing bracket are substantially flush with each other. The solar cell module according to claim 10, wherein The cutout portion is a cut-in amount that accommodates approximately half of the fixing bracket, and adjacent solar cell modules sandwiching the fixing bracket make the leading edges of the protruding portions contact each other. Item 12. The solar cell module according to any one of Items 3 to 11. The cover which covers the said notch part is attached. The solar cell module of any one of Claim 3 to 12 characterized by the above-mentioned. A solar panel formed by sealing a plurality of solar cells arranged; and
A frame member that surrounds the entire outer periphery of the solar cell panel,
The solar cell module, wherein the frame member is provided with a marking for determining a position of a fixing bracket for fixing the frame member to a gantry. A solar battery module in which a plurality of arranged solar cells are sealed, and a frame member surrounding the outer edge of the solar battery panel over the entire circumference, and a plurality of solar battery modules provided in a predetermined direction; ,
A solar cell system including a first solar cell module adjacent to the side-by-side direction and a second solar cell module and a fixing bracket that fixes both solar cell modules to a gantry, and the frame member includes: The solar cell system is characterized in that the fixing bracket is engaged, and an engaging portion is provided that restricts the movement of the fixing bracket in the longitudinal direction of the frame member. The frame member is
An edge holding part for holding an outer edge part of the solar cell panel;
A projecting portion projecting outward from the back surface of the edge holding portion,
The engaging portions are cutout portions formed at substantially the same positions in the axial symmetry of the frame members on the two opposing sides of the solar cell module,
The fixing bracket has a U-shaped cross section, and has claws that fit into the notch portion of the first solar cell module and the notch portion of the second solar cell module, respectively, at both end portions of the U-shaped cross section. The solar cell system according to claim 15, wherein:

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