JP2014136920A - Solar cell module unit for eaves - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell module unit for eaves that has good design even when fitted to eaves of a building, can be arranged in proximity to another unit, and has constitution of simplified external winding.SOLUTION: A solar cell module 13 holds a power generating element 19 between two rectangular glass panels 21A, 21B and has terminal plates 22A, 22B fixed to an end face of one end part of the module 13. A seal tape 37 is stuck on top and reverse surfaces of the one end part of the module 13. A frame material 14 mounted on the one end part of the module 13 has a fitting groove 28 to be fitted to the one end part with the seal tape 37 interposed, and the fitting groove 28 has a space for covering the terminal plates 22A, 22B. Connector connection cables 23A, 23B for external connection of the module 13 have connectors 24A, 24B led out of the frame material 14 through a hole 27d bored in the frame material 14.

Description

  The present invention relates to a solar cell module unit installed as an eaves on an outer wall of a building, and particularly relates to an apparatus suitable for mounting as an eaves on an outer wall of a building.

  As an example in which a solar cell module is attached to a saddle, for example, as described in Patent Document 1, there is a solar cell module attached to a saddle provided on a curtain wall.

JP 2000-297497 A

  Thus, when attaching a solar cell module to a cage | basket, the thing of the size matched with the horizontal width of a curtain wall will be prepared and attached. And when this solar cell module is unitized as a ridge and this unit is attached to the vertical frame of the outer wall of the building, each unit is formed to have a constant lateral width so as to fit the interval of the outer wall of the curtain wall. However, when such a unit is configured, the unit can only be attached to the vertical frame arranged at an interval that matches the width of the unit, and can be installed on the outer wall of a building where the installation interval of the vertical frame of the curtain wall is different. However, there is a problem that the application range is narrow.

  In view of the above problems, an object of the present invention is to provide a solar cell module unit for firewood that can be attached to the outer wall of the building regardless of the installation interval of the vertical frames constituting the outer wall of the building.

The solar cell module unit for firewood according to claim 1
A unit frame that covers a rectangular solar cell module;
Attachment parts to the vertical frame of the building provided at the left and right ends of the unit frame;
It is provided with the bracket attachment part which is provided in the building side frame material of the said unit frame, and attaches the bracket for attaching a unit to the horizontal frame of a building so that attachment or detachment is possible.

The solar cell module unit for bag of claim 2 is the solar cell module unit for bag of claim 1,
The building side frame material of the unit frame includes a cable mounting portion for mounting a cable connecting between the units, and the bracket has a substantially U-shaped cross-sectional shape in the short direction, and is on the cable mounting portion. Located in
The unit including the bracket and the horizontal frame are covered with a removable cover.

The solar cell module unit for firewood according to claim 3 is the solar cell module unit for firewood according to claim 1 or 2,
The building-side frame member has a structure in which a cable connected to the connector is drawn from the vicinity of the left and right ends,
The bracket is formed shorter than a distance between left and right lead portions of the cable in the building-side frame member.

  According to invention of Claim 1, since the bracket attachment part for attaching to the horizontal frame of a building was provided in the building side frame material which comprises a unit frame, when the length of a unit is shorter than the space | interval of the vertical frame of a building The unit can be attached to the horizontal frame through the bracket. For this reason, even if it is a unit shorter than the installation interval of a vertical frame, it becomes possible to attach a unit to the outer wall of a building.

  According to the invention of claim 2, by removing the cover provided between the unit and the horizontal frame, it is possible to easily perform maintenance and inspection work such as connector connection and disconnection and cables.

  According to invention of Claim 3, since the bracket was formed shorter than the space | interval of the left-right drawer | drawing-out part of the said cable in the said building side frame material, a bracket can be manufactured without processing a cable drawer | drawing-out part in a bracket. The bracket can be provided at a low price.

It is a perspective view of the building which shows one Embodiment of the solar cell module unit of this invention. It is the elements on larger scale of FIG. It is a longitudinal cross-sectional view which shows the state which attached the solar cell module unit of this Embodiment to the vertical frame of the curtain wall as a wall of a building. FIG. 4 is a partially enlarged view of FIG. 3. It is a cross-sectional view which shows the state which attached the solar cell module unit of this Embodiment to the curtain wall as a wall of a building. It is a top view which shows the solar cell module unit and bracket for horizontal frame attachment of this Embodiment. (A) is side surface sectional drawing of the solar cell module unit of this Embodiment, (B) is an expanded sectional view which shows the upper part part of a unit. It is an expanded sectional view of the lower part of the unit of this embodiment. (A), (B) is an expanded sectional view of a fitting part with the frame of the upper-lower end part of a module, respectively. It is an assembly process figure of the solar cell module unit of this Embodiment. It is a partial expanded sectional view of FIG. It is EE expanded sectional drawing of FIG. It is a longitudinal cross-sectional view which shows the state which attached the solar cell module unit of this Embodiment to the horizontal frame of the curtain wall.

  FIG. 1 is a perspective view of a building showing an application example of the solar cell module unit 1 of the present invention, and FIG. 2 is a partially enlarged view thereof. As shown in FIGS. 1 and 2, the solar cell module unit 1 also serves as a bag and is attached to a curtain wall 2 constituting the outer wall of the building. As shown in FIG. 1, on each floor, a plurality of units 1 are mounted side by side for each curtain wall 2, and the cables of the units 1 arranged adjacent to each other are connected in series, and vertically connected to one side of the building. Units on each floor are connected to each other through a cable 3 wired to each other, and a common cable 3 is also wired to a plurality of floors as one group, and the DC output of the solar cell module is aggregated in a power conditioner 4 installed in the building as a whole. Here, processing such as conversion of direct current to alternating current is performed.

  The curtain wall 2 includes a unit type curtain wall in which the curtain wall is assembled as a unit in the factory in advance and attached to the housing as an outer wall at the construction site, and a knockdown type that is assembled as a curtain wall at the construction site. In this example, a knockdown type is shown. The curtain wall 2 is attached to a frame such as a reinforced concrete floor 5 via a bracket 12 (see a cross-sectional view in FIG. 5).

  As shown in FIG. 2, the frame body of the curtain wall 2 includes a horizontal frame 7 corresponding to each floor between adjacent vertical frames 6 and 6 and a horizontal frame 8 between the upper and lower horizontal frames 7 and 7. A pair of glass 9 is incorporated in a frame surrounded by the left and right vertical frames 6 and 6, the intermediate horizontal frame 8, and the horizontal frame 7 therebelow to form a light transmission wall (the vertical cross section in FIG. 3). As shown in the figure, a glass panel 10 and a fire-resistant board 11 are incorporated in a frame surrounded by left and right vertical frames 6 and 6, an intermediate horizontal frame 8 and a horizontal frame 7 thereon to form a light shielding wall. (See FIGS. 3 and 5). The vertical frame 6 and the horizontal frames 7 and 8 are both made of extruded metal.

  FIG. 6 is a plan view showing the unit 1 and the horizontal frame mounting bracket. 7A is a side sectional view of the solar cell module unit, and FIG. 7B is a partially enlarged view of FIG. 7A. 8 is an enlarged cross-sectional view showing the end opposite to the module end shown in FIG. 7B, and FIGS. 9A and 9B are partially enlarged views showing tapered portions at both ends of the module. is there. As shown in FIG. 6, the unit 1 includes a solar cell module 13 that has a frame member 14 at one end on the cable drawing side (in the following description, the frame member 14 is referred to as an upper frame member) and the opposite. The frame member 15 is surrounded by a unit frame 17 formed by a side frame member 15 (hereinafter referred to as a lower frame member) and left and right vertical frame members 16 and 16. These frame members 14 to 16 are all made of extruded shape members.

  As shown in FIGS. 6, 7 </ b> A, and 7 </ b> B, the solar cell module 13 sandwiches a resin layer 20 including a plurality of power generation elements 19 arranged vertically and horizontally between front and back glass panels 21 </ b> A and 21 </ b> B. The terminal plates 22A and 22B and the diode 25 are fixed to the upper end face thereof, and connectors 24A and 24B connected to the terminal plates 22A and 22B via cables 23A and 23B, respectively. The diode 25 is provided to guide the generated voltage of only the element that generates power by configuring a bypass circuit for the elements that do not generate power among the plurality of power generation elements 19 connected in series with each other. .

  In the present embodiment, the upper frame member 14 constituting the unit frame 17 includes a first frame member 26 positioned on the back surface side of the solar cell module 13 as shown in FIGS. The second frame member 27 is combined with the first frame member 26 and presses the surface side of the solar cell module 13. A fitting groove 28 is formed between the first frame member 26 and the second frame member 27 so as to be fitted to the upper end portion of the solar cell module 13. The fitting groove 28 has a space for accommodating the terminal plates 22 </ b> A and 22 </ b> B and the diode 25.

  The first frame member 26 and the second frame member 27 are provided with engaging portions 26a and 26b and 27a and 27b for combining them. The first frame member 26 and the second frame member 27 are provided with tapping holes 26c and 27c for screwing and fixing the vertical frame 16 with tapping screws 30 and 31 (see FIG. 6). Similarly, as shown in FIG. 8, a fitting groove 38 of the module 13 is formed in the lower frame member 15, and a setting block 29 is fitted in the inner part of the fitting groove 38, and the lower end surface of the module 13 is set to this setting surface. The module 13 is fitted into the fitting groove 38 in contact with the block 29. The lower frame member 15 is provided with tapping holes 15a and 15b for screwing and fixing the vertical frame member 16 with tapping screws 32 and 33 (see FIG. 6).

  As shown in FIGS. 6 and 7B, the second frame member 27 is provided with holes 27d through which cables 23A and 23B connected to the connectors 24A and 24B are respectively passed. Further, the second frame member 27 includes cables 23A and 23B connected to the connectors 24A and 24B, and a return cable 23C provided in common for the same floor (of the units 1 connected in series to each other on the same floor, A cable placing portion 27e for placing a cable led from the unit 1 which is the end portion to the end portion on the opposite side of the building is provided. Further, the second frame member 27 is provided with bracket mounting grooves 27f and 27g for mounting the unit 1 to the horizontal frame 8 of the curtain wall 2 via a bracket 34 (see FIGS. 6 and 13) described later.

  As shown in FIG. 4, the first frame member 26 is provided with an attachment groove 26 d for fitting the head 36 a of the bolt 36 in order to fix the unit 1 to the attachment bracket 35 to the curtain wall 2 with the bolt 36. Further, the vertical frame member 16 is provided with a mounting groove 16a for fitting a head 39a of a bolt 39 for fixing the unit 1 to the bracket 35.

  As shown in FIGS. 7B and 8, the front and back surfaces of the upper end portion and the lower end portion of the solar cell module 13 are secured with water tightness between the unit frame 17 over the entire length in the width direction. Then, a seal tape 37 for preventing water from entering between the glass panels 21A and 21B is attached. Then, the fitting groove 28 of the upper frame member 14 and the fitting groove 38 of the lower frame member 15 are fitted to the upper end portion and the lower end portion of the solar cell module 13 via the seal tape 37.

  As shown in FIG. 9A, on the opening end side of the fitting groove 28 provided in the upper frame member 14, the inclined surface 26e of the first frame member 26 and the inclination provided on the second frame member 27, respectively. A tapered portion having a larger opening width on the tip side is formed by the surface 27h. Further, as shown in FIG. 9B, a tapered portion having an opening width on the front end side is formed on the opening end side of the fitting groove 38 provided in the lower frame member 15 by the inclined surfaces 15c and 15d, respectively. To do.

  6 and 7A, reference numeral 40 denotes an auxiliary frame member made of an extruded profile that is additionally attached over the entire length of the lower frame member 15. The auxiliary frame member 40 is provided as necessary to prevent snow falling on the unit 1. As shown in FIG. 8, the auxiliary frame member 40 has engaging portions 40 a and 40 b provided on the auxiliary frame member 40 engaged with engagement portions 15 e and 15 f formed on the outdoor side end surface of the lower frame member 15. The engaging portions 40a and 15d are connected to each other by a fixing tool 41 such as a tapping screw, and fixed to the lower frame member 15.

  The auxiliary frame member 40 includes a plate-like portion 40c at a position lower than the surface of the lower frame member 15, and a rising piece 40d for preventing snow from falling outside the plate-like portion 40c. Further, as shown in FIG. 6, a plurality of drain holes 40e are dispersedly provided in the root portion of the rising piece 40d which is the outdoor side of the plate-like portion 40c. The reason why the drain holes 40e are distributed in this way is to prevent water from remaining in any part on the auxiliary frame member 40 even if the auxiliary frame member 40 is twisted or bent. The water that has entered the hollow portion 40f through the drain hole 40e is configured to flow down from both ends of the auxiliary frame member 40.

  FIG. 10 shows the assembly process of the unit 1. As shown in FIG. 10 (A), the solar cell module 13 is attached with a sealing tape 37 made of double-sided tape over the entire length on the front and back surfaces of the upper end portion and the lower end portion thereof. Further, the connectors 24A and 24B of the module 13 and the cables 23A and 23B connected to the connectors 24A and 24B are passed through the holes 27d and 27d of the second frame member 27, respectively.

  Subsequently, as shown in FIG. 10B, the first frame member 26 and the second frame member 27 are combined as shown in FIG. Further, as shown in FIG. 9, the auxiliary frame member 40 is previously attached to the lower frame member 15, and the fitting groove 38 of the lower frame member 15 is connected to the lower end portion of the module 13 via the seal tape 37. Press fit. Further, as shown in FIG. 10C, the fitting groove 28 of the upper frame member 14 configured by combining the first frame member 26 and the second frame member 27 is provided with a sealing tape on the upper end portion of the module 13. Press fit through 37. Thereafter, the left and right vertical frame members 16 are coupled to the upper frame member 14 and the lower frame member 15 by tapping screws 30, 31 and 32, 33, respectively.

  As shown in FIGS. 10B and 10C, after passing the cables 23A and 23B through the holes 27d of the second frame member 27, a cover 43 for closing the holes 27d is attached to the cables 23A and 23B. After the assembly of the vertical frame member 16 is completed, the lid 43 closes the hole 27d to keep the watertightness. The lid 43 is made of a flexible material, has a notch for fitting into the cables 23A and 23B, and has a portion to be fitted into the hole 27d. By covering the lid 43 with a fastening material made of rubber, The cut portion is closed and fixed to the cables 23A and 23B.

  FIG. 11 is a plan view showing a structure for mounting the unit mounting bracket 35 to the vertical frame 6 of the curtain wall 2. As shown in FIGS. 11 and 4, the vertical frame 6 has a unit mounted at its outdoor end. For this purpose, the mounting plate portion 6a is extended to the left and right, and through holes 6b through which the bolts 45 for mounting the brackets 35 are respectively inserted are provided in the mounting plate portion 6a. The bracket 35 is a curved plate provided with a vertical plate portion 35a and a unit mounting plate portion 35b inclined so that the tip end side is lowered from the upper end thereof. The vertical plate portion 35a is provided with a through hole 35c through which the bolt 45 is inserted, and the unit mounting plate portion 35b is provided with through holes 35d and 35e through which the bolts 36 and 39 for unit attachment are inserted.

  4 and 11, a bolt 45 is passed through a through hole 6b provided in the mounting plate portion 6a of the vertical frame 6 and a through hole 35c provided in the bracket 35, and a nut 46 is screwed into the bolt 45. The bracket 35 is fixed to the vertical frame 6 by fastening. Thereafter, as shown in FIG. 4, the bolt 36 having the head 36a fitted in the mounting groove 26d of the first frame member 26 of the unit 1 is passed through the through hole 35d of the bracket 35, and as shown in FIG. By passing a bolt 39 having a head 39a fitted in the mounting groove 16a of the vertical frame member 16 of the unit 1 through the through hole 35e of the bracket 35, and screwing and fastening nuts 47 and 48 to the bolts 36 and 39, respectively. The end of the unit 1 is fixed to the vertical frame 6. By performing such work on both ends of the unit 1, the unit 1 is attached to the outer wall of the curtain wall 2.

  In FIG. 4, reference numeral 50 denotes a cover made of an extruded profile attached to the horizontal frame 8 so as to cover the gap between the upper frame member 14 of the unit 1 and the outer wall of the curtain wall 2. Reference numeral 51 denotes an attaching plate made of an extruded shape member attached to the outdoor end portion of the horizontal frame 8 by a fixing tool 52 such as a screw in order to attach the cover 50 to the horizontal frame 8. The cover 50 is fixed to the mounting plate 52 with a fixing tool 53 such as a screw. The cover 50 has a width that covers the space between the upper frame member 14 and the outer wall of the curtain wall 2, and a seal member 54 that prevents water from entering the cover 50 is provided at the outdoor end of the cover 50. The cover 50 covers and protects the cable 23C and the connectors 24A and 24B on the cable placement portion 27e of the second frame member 27.

  In the above example, the unit 1 is attached to the vertical frame 6 of the curtain wall 2, but the unit 1 may be attached to the horizontal frame 8 as shown in FIG. A bracket 34 for attaching the unit 1 to the horizontal frame 8 has a substantially U-shaped cross-sectional shape in the short direction. As shown in FIG. 6, the bracket 34 has a length L2 (L2 ≦ L1) equal to or less than a distance L1 between the holes 27d and 27d through which the cables 23A and 23B pass. Further, the bracket 34 is provided with a plurality of mounting holes 34 c in the mounting plate portion 34 b to the horizontal frame 8.

  As shown in FIG. 13, the bracket 34 is fitted with upper and lower ends of the mounting plate portion 34a of the bracket 34 in mounting grooves 27f and 27g provided on the upper and lower sides of the second frame member 27 on the indoor side, and screws or the like. The bracket 34 is fixed and attached to the second frame member 27 by the fixing tool 55. On the other hand, a mounting groove 8a for fitting a head portion 56a of a bolt 56 for fixing the bracket 34 is provided at the outdoor side end portion of the horizontal frame 8, and a through hole 34c provided in the vertical plate portion 34b of the bracket 34 is provided. The unit 1 is attached to the horizontal frame 8 by screwing and fastening a nut 57 to the bolt 56. The cover 50 is fixedly attached by a fixing tool 53 by engaging with an attachment plate portion 8 b provided on the horizontal frame 8.

  As shown in FIG. 13, if the unit 1 is mounted on the horizontal frame 8, the unit 1 can be mounted even when the left and right widths of the unit 1 do not reach the width between the vertical frames 6 and 6. There is an advantage of becoming. In the present embodiment, the length of the bracket 34 is set to be equal to or shorter than the distance between the holes 27d and 27d shown in FIG. 6, and the bracket 34 is formed with the holes 27d and 27d of the second frame member 27. It is fitted in the mounting grooves 27f and 27g in advance so as to be positioned between them. This eliminates the need to process holes or the like through the connectors 24A and 24B in the bracket 34, thereby reducing processing costs. The horizontal frame for mounting the unit 1 may be the horizontal frame 7 corresponding to the floor of each floor, instead of the intermediate horizontal frame 8 as in this embodiment.

  As described above, in the unit 1 of the present embodiment, the upper frame member 14 constituting the unit frame is provided with the bracket mounting portion including the mounting grooves 27f and 27g for mounting on the horizontal frame of the building. Is shorter than the space between the vertical frames 6 and 6 of the building, the unit 1 can be attached to the horizontal frame 8 via the bracket 34. For this reason, even if it is the unit 1 shorter than the installation space | interval of the vertical frame 6, it becomes possible to attach the unit 1 to the outer wall of a building.

  The upper frame member 14 includes a cable mounting portion 27e for mounting the cable 23C connecting the units 1 and the bracket 34 has a substantially U-shaped cross section in the short direction on the cable mounting portion 27e. Since the unit 1 including the bracket 34 and the horizontal frame 8 are covered with a removable cover 50, the connector 24A is removed by removing the cover 50 provided between the unit 1 and the horizontal frame 8. , 24B, and maintenance / inspection work of these connectors 24A, 24B and cables 23A, 23B, etc. can be easily performed.

  Further, since the horizontal frame mounting bracket 34 has a length equal to or shorter than the distance between the holes 27d and 27d which are the left and right lead portions of the cables 23A and 23B in the upper frame member 14, the lead portions of the cables 23A and 23B are provided on the bracket 24. The bracket 24 can be manufactured without processing, and the bracket 34 can be provided at a low cost.

  In the present invention, the upper frame member 14 may have a structure in which the first frame member 26 and the second frame member 27 are integrated, and the cables 23A and 23B are drawn from both ends of the unit 1, In that case, the length of the bracket 34 may be longer than the length of the unit 1.

  Although the present invention has been described above with reference to the embodiment, the present invention can be applied to a case where the curtain wall is a unit type or to a general house. Moreover, when implementing this invention, a various change and addition are possible about a structural member and its combination in the range which does not deviate from the summary of this invention.

1: Solar cell module unit, 2: curtain wall, 3: cable, 4: power conditioner, 5: floor, 6: vertical frame, 7, 8: horizontal frame, 9: pear glass, 10: glass panel, 11: fireproof Board: 13: Solar cell module, 14: Upper frame material, 15: Lower frame material, 16: Vertical frame material, 17: Unit frame, 19: Power generation element, 20: Resin layer, 21A, 21B: Glass panel, 22A, 22B: terminal board, 23A, 23B, 23C: cable, 24A, 24B: connector, 25: diode, 26: first frame member, 27: second frame member, 27d: hole, 28: fitting groove, 30 33: Tapping screw, 34, 35: Bracket, 36, 39: Bolt, 37: Seal tape, 38: Fitting groove, 40: Auxiliary frame material, 43: Lid, 45: Bolt, 46, 47, 48: Nut 5 : Cover, 55: fastener, 56: Bolt, 57: Nut

Claims (3)

A unit frame that covers a rectangular solar cell module;
Attachment parts to the vertical frame of the building provided at the left and right ends of the unit frame;
A solar cell module unit for firewood, comprising: a bracket mounting portion that is provided on a building-side frame member of the unit frame and removably mounts a bracket for mounting the unit on a horizontal frame of the building. In the solar cell module unit for firewood according to claim 1,
The building side frame material of the unit frame includes a cable mounting portion for mounting a cable connecting between the units, and the bracket has a substantially U-shaped cross-sectional shape in the short direction, and is on the cable mounting portion. Located in
A solar cell module unit for firewood characterized in that a space between the unit including the bracket and the horizontal frame is covered with a removable cover. In the solar cell module unit for firewood according to claim 1 or 2,
The building-side frame member has a structure in which a cable connected to the connector is drawn from the vicinity of the left and right ends,
The solar cell module unit for firewood, wherein the bracket is formed shorter than a distance between left and right lead portions of the cable in the building-side frame member.

Images