JP2001144314A - Solar panel fixing device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a fixing device for a solar cell panel having an excellent fixing function, which is resistant to strong wind and snow. SOLUTION: Regarding a fixing device for fixing the solar cell panel 1 to a roof or the like, a hollow rail-shaped base 8 having a substantially convex cross section fixed in the lateral direction, and the solar cell panel 1 on the base 8 by screwing. The gantry 8 includes a holding surface 10 and a holding member insertion groove that opens inward along the holding surface 10. The holding member 10 includes an inner holding member 15 and an outer holding member 16 that are fixed in a holding state. 11, and the inner holding member 15 is provided with opposing rim portions 28 which can be slidably engaged with the holding member insertion grooves 11 along the holding member insertion grooves 11, and the rim portion 28 and the holding member are provided. Insertion groove 1
The form of engagement with 1 is the fitting of the hook hand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a solar cell panel for fixing a flat-panel solar cell panel, which is a main component of solar power generation, to an installation structure such as a roof.

[0002]

2. Description of the Related Art In many solar cell panels used for photovoltaic power generation, a plurality of electrically connected solar cells are sandwiched between a front surface protection substrate and a back surface protection material to form a front surface protection substrate and a back surface protection material. A configuration is adopted in which a frame made of aluminum or the like is attached to the periphery of a rectangular board-shaped base with an adhesive layer formed between the base material and the base material. Such a solar cell panel is installed on an installation structure such as a roof via a fixing device. A conventional solar cell panel fixing device is disclosed in, for example, Japanese Patent Application Laid-Open No. 7-153.
The configuration as shown in JP-A-982 is adopted.

That is, as shown in FIG. 10, a vertical frame 41 made of channel material is provided in a column on an installation structure 40 such as a roof, and a horizontal frame 42 made of channel material is fixed to the vertical frame 41 in rows. ing. The horizontal mount 42 has the web portion in the vertical direction, and the vertical mount 41
, And the other flange is configured as a receiving surface for receiving the flange 44 of the frame forming the edge of the solar cell panel 43. A threaded burring portion 45 is formed on the flange portion serving as the receiving surface,
Flange 44 of solar cell panel 43 placed on receiving surface
The solar cell panel 43 is fixed by applying a support plate 46 having a U-shaped cross section from the front side and screwing a bolt 47 into the burring portion 45 of the receiving surface to fasten the support plate 46. The flange 44 of each frame of the adjacent two rows of solar cell panels 43 is mounted on the receiving surface, and each frame of the adjacent two rows of the solar cell panels 43 is fixed by one support plate 46.

[0004]

The fixing device for the solar cell panel 43 as described above has a problem that the fixing of the solar cell panel 43 is easily loosened when a load due to strong wind or snow is repeatedly applied. . That is, when an air current is blown between the back surface of the solar cell panel 43 and the installation structure 40 due to a strong wind or the like, a load in the direction of the arrow in FIG. This load is carried by the flange 44 of the solar cell panel 43 sandwiched between the receiving surface and the support plate 46.
Is applied, the flange 44 becomes a sliding force against the receiving surface and the support plate 46. When this force is repeatedly applied, the solar cell panel 43 can be loosened. Also, the load due to snowfall or snowfall is applied in the flow direction, but this also acts as a force for the flange 44 of the solar cell panel 43 to slide against the receiving surface and the support plate 46. Therefore, when this force is repeatedly applied. Also, the solar cell panel 43 can be loosened.

[0005] The present invention has been made to solve the above conventional problems.
An object of the present invention is to obtain a fixing device for a solar cell panel having an excellent fixing function that is resistant to strong winds, snowfall, and the like, to improve the workability of the fixing device, and to enhance the functions.

[0006]

In order to achieve the above object, the invention of claim 1 is to provide a solar cell panel which is formed in a rectangular flat plate shape and has fixing flanges protruding on opposite sides thereof, respectively, such as a roof. Regarding a fixing device of a solar cell panel to be fixed to an installation structure, a hollow rail-shaped pedestal having a substantially convex cross section fixed to the installation structure, and a flange of the solar cell panel on this pedestal are fixed in a sandwiched state by screw fastening. It has a clamping and fixing means consisting of an inner clamping member and an outer clamping member, and the gantry is provided with an opening in the center of the convex upper surface along the longitudinal direction, and the flanges of the adjacent solar cell panels are respectively provided. Two parallel holding surfaces for mounting on both sides of the opening portion, an inwardly-opening holding member insertion groove provided along the holding surface at an inner lower portion of each holding surface, and an outside of the holding member insertion groove. Both outer sides And a step portion on which the periphery of the solar cell panel is placed is provided, and the inner holding member of the holding and fixing means can be slidably engaged with the holding member insertion groove along the holding member insertion groove. Providing opposing rims, the engagement between the rim and the holding member insertion groove restricts the movement of the inner holding member other than the sliding direction with respect to the gantry, and also expands the open portion of the gantry. Means of a fitting structure for maintaining the engaged state by catching is adopted.

In order to achieve the above object, a second aspect of the present invention is to form a protruding edge extending downward on the open side of each holding surface in the means according to the first aspect, wherein the side of the inner holding member is provided. The edge portion is provided with a protruding portion that protrudes upward, the engagement form between the edge portion of the inner holding member and the holding member insertion groove of the gantry,
A means of fitting the hook hands is adopted.

According to a third aspect of the present invention, in order to achieve the above-mentioned object, a guide rail which is continuous in a sliding direction with respect to the gantry is opposed to a back surface of the inner holding member in the means according to the first or second aspect. And a flanged nut for screwing the inner holding member and the outer holding member so as to be slidable on the guide rail, and tightening the screw from the outer holding member side to the nut with the inner holding member. Means for holding the flange of the solar cell panel by the outer holding member is employed.

According to a fourth aspect of the present invention, there is provided a guide rail according to the third aspect,
Means for plastically deforming and positioning the nut is employed.

According to a fifth aspect of the present invention, in order to achieve the above object, a partial gap is set in a contact surface between the inner holding member and the nut in the means according to the third or fourth aspect. Adopt means.

According to a sixth aspect of the present invention, in order to achieve the above-mentioned object, the nut of the inner holding member in the means according to any one of the third to fifth aspects is mounted at a predetermined position.
Means are provided in which an engaging recess is provided, and the nut is provided with an engaging protrusion engaging with the engaging recess on the side of the contact surface with the inner holding member.

According to a seventh aspect of the present invention, in order to achieve the above object, a plurality of pedestals in the means according to any one of the first to sixth aspects are provided on the same line, and the end faces are arranged in abutting state. A means for attaching the inner holding member across the butting portions of these gantry and connecting the gantry is adopted.

[0013] In order to achieve the above object, the invention according to claim 8 is characterized in that, in the means according to any one of claims 1 to 7, the contact surface of the inner holding member with the holding member insertion groove includes:
Means having a structure for making a scratch on the contact partner side is adopted.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 The present embodiment shown in FIGS. 1 to 5 relates to a fixing device for fixing a flat-panel solar cell panel 1 serving as a main body of photovoltaic power generation in a state of being laid on an installation structure 2 such as a roof structure of a house. Things. As shown in FIG. 1, the solar cell panel 1 has a structure in which a frame 3 made of aluminum or the like is mounted around a base, which is a photovoltaic function body formed in a rectangular flat plate shape. The foundation is
A plurality of solar cells electrically connected in series by a tab wire are sandwiched between sheets of a transparent heat-fusing agent forming a filler layer, and this is sandwiched between a surface protection substrate and a rear surface protection material such as a weatherproof film. And heated by heating while evacuating to form a rectangular disk-shaped panel. An upper frame 4 which is an upper side (a ridge side in a roof structure) in an installed state on the frame 3;
The lower frame 5 on the lower side (eave side in the roof structure) and the left and right vertical frames are combined to form a rectangular frame structure. The upper frame 4 and the lower frame 5 are each provided with a fixing flange 6 which is continuous in the longitudinal direction substantially at the center of the outer end thereof, as shown in FIG. The free edge of the flange 6 is a rising 7 projecting upward.

The fixing device is for fixing the solar cell panel 1 to the installation structure 2 such as a roof by arranging the solar cell panel 1 vertically and horizontally. The fixing device is made of aluminum having a substantially convex cross-section (required strength). A material other than aluminum may be used as long as the conditions such as weather resistance and workability are satisfied). A hollow rail-shaped base 8 and a flange 6 of the solar cell panel 1 on this base 8 are clamped by screws. And fixing means for fixing. The gantry 8 is provided with an opening 9 along the longitudinal direction at the center of the convex upper surface, and the flanges 6 of the adjacent solar cell panels 1 are placed on both sides of the opening 9 respectively. Two holding surfaces 10 running in parallel with each other, and inwardly-opening holding member insertion grooves 11 provided along the holding surfaces 10 at lower portions inside the holding surfaces 10.
And a stepped portion 12 on both sides of the outer side of the holding member insertion groove 11 on which the edge of the solar cell panel 1 is placed. The stepped portion 12 is provided according to the vertical dimension of the solar cell panel 1. A plurality of rows are provided in parallel in a row at an interval. The surface of the gantry 8 is subjected to a surface treatment.

An edge 13 of the holding surface 10 on the side of the opening 9 has a protruding edge 13 protruding inward, thereby forming the holding member insertion groove 11.
The open part inside is shaped like a hook (see FIG. 2). The lower side of the holding member insertion groove 11 is constituted by a flange 14 which protrudes inwardly of the holding surface 10.

The holding means comprises an inner holding member 15 provided inside the gantry 8, a long outer holding member 16 provided along the gantry 8 on the outside, and an inner holding member 15 and the outer holding member 16. Bolt 17 for screwing and flange 1 on one end
8 having a nut 19. The outer sandwiching member 16 is an extruded aluminum product having a substantially U-shaped cross section, and is configured to have a length approximately equal to the width of the solar cell panel 1 in the lateral direction. Each of the flanges 20 protruding downward from both edges of the outer holding member 16 has a protrusion amount substantially equal to the rising dimension of the rising portion 7 of the flange 6 on the solar cell panel 1 side. The web portion 21 between the flanges 20 is formed to have a width substantially equal to the width dimension of the upper surface of the gantry 8, and an inverted trapezoidal protruding portion 22 which can enter the open portion 9 of the gantry 8 is continuously formed in the center of the back surface in the longitudinal direction. It is formed. At the center of the web portion 21, insertion holes 23 through which the bolts 17 pass are formed at several places along the longitudinal direction.

As shown in FIGS. 2, 3 and 4, the inner holding member 15 is an extruded product of aluminum having a substantially U-shaped cross section substantially symmetrical to the outer holding member 16, and has a length much shorter than that of the outer holding member 16. Is configured. Each flange 24 protruding upward from both edges of the inner holding member 15 has a protrusion amount substantially equal to the protrusion dimension of the protrusion 13 protruding inside the gantry 8.
The web portion 25 between the flanges 24 is formed to have a width substantially equal to the width between the holding member insertion grooves 11 of the gantry 8, and a projecting portion of the outer holding member 16 protruding from the opening 9 of the gantry 8 at the front center thereof. Trapezoidal projection 26 whose lower surface can abut against 22
Are formed in the longitudinal direction. An insertion hole 27 through which the bolt 17 passes is formed in the center of the web portion 25 (see FIG. 4). The inner holding member 15 with respect to the gantry 8
By fitting the edges 28 at both ends from each end into the holding member insertion grooves 11, the mount 8 is slidably mounted in the longitudinal direction.

The center of the back surface of the inner holding member 15 is shown in FIGS.
As shown in the figure, a guide rail 29 which is continuous in the sliding direction with respect to the gantry 8 is provided in an opposed manner. Guide rail 2
9 has a free edge side inwardly narrowed to each other, and a series of reverse convex grooves 30 for inserting the nut 19 through two guide rails 29 are formed. The nut 19 is assembled to the groove 30 such that the opposing surface of the rectangular portion contacts the free edge of the guide rail 29, the flange 18 fits in the groove 30, and can slide in the groove 30. At the position where the insertion hole 27 and the screw hole are aligned with each other, the free end edge of each guide rail 29 is plastically deformed 31 inward to be positioned as shown in FIG. With this configuration, since the nut 19 does not fall off, the mounting operation of the nut 19 can be performed easily. Further, a groove 32 that forms a partial gap between the inner holding member 15 and the nut 19 is provided on the back surface of the inner holding member 15 so that moisture such as rainwater does not stay in the portion. It has become.

The solar cell panel 1 is fixed to the fixing device as described below. That is, the upper edge of the solar cell panel 1 is placed on the upper side of the two bases 8 fixed in the horizontal direction on the installation structure 2, and the lower edge is placed on the lower side (see FIG. 1). At this time, the flange 6 of the frame 3 of the solar cell panel 1 is received on the holding surface 10 of each gantry 8, and the ridge of the rear edge is fitted to the step 12 of the gantry 8 and received. (See FIG. 2). After that, the inner holding members 15 for the number of the insertion holes 23 of the outer holding member 16 are mounted by inserting the edge portions 28 into the holding member insertion grooves 11 from the ends of the respective gantry 8. The position of each inner holding member 15 with respect to the gantry 8 is adjusted by sliding to a position corresponding to the insertion hole 23 of the outer holding member 16, so that the inner holding member 15 covers the flange 6 of the solar cell panel 1 from above. The bolt 17 is screwed into the nut 19 attached to each inner holding member 15 from each insertion hole 23 and tightened. If the vertical frame of the frame 3 has the flange 6, the gantry 8 may be fixed in parallel in the vertical direction to fix the solar cell panel 1.

As a result, the solar cell panel 1 is held and fixed on the holding surface 10 of the gantry 8 by the outer holding member 16 and the inner holding member 15. The two holding surfaces 10 of one stand 8 have lower flanges 6 on adjacent solar cell panels 1.
And the upper flange 6 are placed, and the lower edge and the upper edge of the adjacent solar cell panel 1 are fixed together. When airflow due to strong wind or the like is blown between the installation structure 2 and the rear surface of the solar cell panel 1 fixed and laid on the installation structure 2 in this manner, a load for lifting the solar cell panel 1 is applied. This load acts as a force for pushing open the opening 9 between the holding surfaces 10 of the gantry 8.

However, in the fixing device according to the present embodiment, the holding surface 10 is supported by the end surface of the solar cell panel 1 which is mounted on the stepped portion 12 in an engaged state. Nipping member insertion groove 11 of gantry 8
Are engaged in the shape of a hook, so that the holding surface 10 of the gantry 8 is hardly deformed, and the fixing state of the solar cell panel 1 is loosened, or the opening 9 is expanded to open the inner holding member 15. Gantry 8
Nothing will leave you. In addition, the load due to snow cover or snow slide is applied to the solar cell panel 1 in the flow direction,
Also in this case, the lower end of the solar cell panel 1 is
The flange 6 does not slide on the holding surface 10 or the outer holding member 16 because
It does not cause loosening of the fixed state of the solar cell panel 1.

The mounting of the nut 19 on the inner holding member 15 can be easily carried out by plastically deforming at least two places on both sides of the nut 19 of the guide rail 29 inward at the construction site with a suitable tool. Nut 19 on the surface
Can be reduced in the process of fixing the Even if rainwater or the like enters the gap between the nut 19 and the inner holding member 15, it is drained by the groove 32 and does not stagnate, so that corrosion of the nut 19 can be prevented.

Embodiment 2 FIG. The present embodiment shown in FIGS. 6 and 7 is one in which the device for fixing the solar cell panel 1 shown in the first embodiment is devised to improve the workability in mounting the nut 19, and other than the configuration related thereto. Is the same as that shown in the first embodiment. Therefore, the same portions as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof will be omitted.

The fixing device according to the present embodiment is similar to the fixing device according to the first embodiment.
The engagement holding portion 33 is provided on the inner holding member 15 indicated by the symbol, and the engagement projection 34 that engages with the engagement recess 33 is provided on the nut 19. The engagement recess 33 is formed as a circular or square recess on the back surface of the inner holding member 15 concentrically with the insertion hole 27. The engaging projection 34 is formed as a projection smaller than the circular or square flange 18 concentrically with the screw hole on the side of the nut 19 contacting the inner holding member 15.

By adopting this configuration, the nut 1
If the insert 9 slides through the groove 30 between the guide rails 29, the engagement protrusion 34 engages with the engagement recess 33. This engagement position is a position for fixing the nut 19, and the nut 19
Is temporarily fixed at a predetermined position. Here, if at least two of the guide rails 29 on both sides of the nut 19 are plastically deformed 31 inward with an appropriate tool, the nut 19 can be easily mounted at a predetermined position, and the insertion hole 27 and the screw hole are also provided. The center lines match. Therefore, nut 19
The workability of the fixing work is improved, and the workability is also improved. Other configurations and functions are the same as those of the first embodiment.

Embodiment 3 The present embodiment shown in FIGS. 8 and 9 is obtained by devising a device for fixing the solar cell panel 1 shown in the first and second embodiments to improve the function. It is the same as that shown in 1 and 2. Therefore, the same portions as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof will be omitted.

In the present embodiment, a plurality of the gantry 8 shown in the first and second embodiments are provided on the same line, with the end faces butting each other, and the inner holding member 15 is attached across the gantry connecting portion. The frames 8 are connected to each other by holding means. The inner holding member 15 has the holding member insertion groove 11
Is provided with a sharp contact structure 35 for making a scratch on the contact partner side. By adopting this configuration, the fixing between the plurality of gantry 8 is strengthened by the inner holding member 15 and the fixing function of the gantry 8 is improved, and the gantry 8 is also scratched via the inner holding member 15 of the connecting portion. Since the surface treatment is removed and it is electrically continuous, the gantry 8 can be used as a common line when the frame 3 of the solar cell panel 1 is grounded, and the workability is also improved. Other configurations and functions are the same as those of the first embodiment.

[0029]

According to the first aspect of the present invention, it is possible to obtain a solar cell panel fixing apparatus having an excellent fixing function that is resistant to strong winds and snow.

According to the second aspect of the present invention, the fixing function is improved in addition to the effect of the first aspect.

According to the third aspect of the present invention, the mounting of the nut is facilitated together with the effect according to the first or second aspect.

According to the fourth aspect of the present invention, in addition to the effect of the third aspect, the positioning of the nut can be easily performed on site, and the workability is improved.

According to the fifth aspect of the present invention, together with the effect according to the third or fourth aspect, it is possible to prevent stagnation of rainwater or the like and prevent corrosion of the nut.

According to the sixth aspect of the present invention, the nut can be temporarily fixed together with the effect according to any one of the third to fifth aspects, and the nut can be securely and easily mounted.

According to the seventh aspect of the present invention, in addition to the effect according to any one of the first to sixth aspects, the fixing of the plurality of gantry becomes more firm.

According to the eighth aspect of the present invention, the gantry can be used as a common line of the ground together with the effect according to any one of the first to seventh aspects, and the workability is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a fixing device for a solar cell panel according to a first embodiment.

FIG. 2 is an end view of the fixing device for a solar cell panel according to the first embodiment.

FIG. 3 is an end view showing a relationship between an inner holding member and a nut of the fixing device according to the first embodiment.

FIG. 4 is a front view of an inner holding member of the fixing device according to the first embodiment.

FIG. 5 is a rear view of the inner holding member to which the nut of the fixing device according to the first embodiment is mounted.

FIG. 6 is an end view showing a relationship between an inner holding member and a nut of the fixing device according to the second embodiment.

FIG. 7 is an end view of a fixing device for a solar cell panel according to a second embodiment.

FIG. 8 is an end view of an inner holding member of the solar cell panel according to the third embodiment.

FIG. 9 is a front view of a connecting portion of a gantry of the fixing device for a solar cell panel according to the third embodiment.

FIG. 10 is a cross-sectional view of a conventional solar cell panel fixing device.

[Explanation of symbols]

Reference Signs List 1 solar panel, 2 installation structure, 3 frame, 4 upper frame, 5 lower frame, 6
Flange, 8 stand, 9 open part, 10 holding surface,
11 holding member insertion groove, 12 stepped portion, 15 inner holding member, 16 outer holding member, 17 bolt,
18 tsuba, 19 nut, 28 edge, 29 guide rail, 30 groove, 31 plastic deformation, 32
Groove, 33 engaging concave portion, 34 engaging protrusion, 35
Contact structure.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Naoki Ito 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsui Electric Co., Ltd. (72) Inventor Yoshiyuki Suganuma 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F term in Ryo Denki Co., Ltd. (reference) 5F051 BA18 JA06 JA09

Claims (8)

[Claims] 1. A fixing device for fixing a solar cell panel to a mounting structure such as a roof or the like, wherein the solar cell panel is formed in a rectangular flat plate shape and has fixing flanges protruding on opposite sides thereof, respectively. Clamping means comprising: a hollow rail-shaped pedestal having a substantially convex cross section fixed to the base; and an inner clamping member and an outer clamping member for fixing the flange of the solar cell panel on the pedestal by screwing. Having an opening in the center of the convex upper surface along the longitudinal direction, and mounting the flanges of adjacent solar cell panels on both sides of the opening, respectively. Two holding surfaces are arranged in parallel, a holding member insertion groove that opens inward and is provided along the holding surface at an inner lower portion of each holding surface, and both outer portions on the outside of the holding member insertion groove. Said solar power A step portion on which an edge of the pond panel is placed; and an opposing member that can be slidably engaged with the holding member insertion groove along the holding member insertion groove. An edge portion is provided, and the engagement between the edge portion and the holding member insertion groove restricts movement of the inner holding member in a direction other than the sliding direction with respect to the gantry and expands an open portion of the gantry. Is a fixing device for a solar cell panel having a fitting structure that maintains an engaged state by being caught. 2. The fixing device for a solar cell panel according to claim 1, wherein each of the holding surfaces has a protruding edge protruding downward toward an open side of the holding surface, and an edge of the inner holding member faces upward. A fixing device for a solar cell panel, wherein a protrusion protruding from the inner holding member is provided, and an engagement between the edge portion of the inner holding member and the holding member insertion groove of the gantry is engaged with a hook. 3. The fixing device for a solar cell panel according to claim 1, wherein a guide rail that is continuous in a sliding direction with respect to the gantry is provided on a back surface of the inner holding member so as to face each other. A flanged nut for screwing the inner holding member and the outer holding member so as to be slidable is attached to the guide rail, and the inner holding member and the outer member are screwed to the nut from the outer holding member side. A fixing device for a solar cell panel in which a flange of the solar cell panel is held by a holding member. 4. The fixing device for a solar cell panel according to claim 3, wherein the positioning of the nut is determined by plastic deformation of the guide rail. 5. The fixing device for a solar cell panel according to claim 3, wherein the solar cell panel has a partial clearance set in a contact surface between the inner holding member and a nut. apparatus. 6. The fixing device for a solar cell panel according to claim 3, wherein an engaging recess is provided at a predetermined position where the nut of the inner holding member is mounted, and the nut has A fixing device for a solar cell panel, comprising: an engagement projection that engages with the engagement concave portion on a contact surface side with an inner holding member. 7. The fixing device for a solar cell panel according to claim 1, wherein a plurality of pedestals are arranged on the same line with their end faces butt-joined to each other. A fixing device for a solar cell panel in which an inner holding member is attached across a joining portion and gantry is connected. 8. The fixing device for a solar cell panel according to claim 1, wherein the contact surface of the inner holding member with the holding member insertion groove is scratched on the contact partner side. A solar cell panel fixing device with a structure.