JP2009057757A - Solar-cell module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solar-cell module prevented from being damaged by the freezing of the rainwater flowing therein when the solar-cell module is installed on a roof. <P>SOLUTION: This solar-cell module comprises a frame member 10b supporting one side of a solar cell panel 9 and a reinforcement frame member 20a joined to the frame member 10b. The frame member 10b comprises retaining parts 11, 12, 13, a wall part 14, and a bottom piece 15. The frame member forms a reinforcement frame fitting space surrounded by the lower surface 13a of the retaining part, the inner surface 14a of the wall part, and the upper surface 15a of the bottom piece, forms a projecting piece 18 on the inner surface 14a of the wall part, and also forms the reinforcement frame member 20a of a square pipe having an internal space. With the end edge 24 of the reinforcement frame member brought into contact with the projecting piece 18, the reinforcement frame member is fitted into the reinforcement frame fitting space and joined to the frame member 10b. In this state, the gap 7 allowing the rainwater in the internal space of the reinforcement frame member 20a to flow to the outside is formed between the reinforcement frame member 20a and the inner surface 14a of the wall part to form the solar-cell module 1a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a solar cell module that uses a frame member to hold a solar cell panel and uses a reinforcing frame member coupled to the frame member.

  The solar cell module is generally composed of a rectangular solar cell panel and a frame member that holds the solar cell panel. The thing of various structures is known for the frame member used for this solar cell module.

  In this frame member, as the structure of this frame member, a wall portion formed vertically along one side of the solar cell panel and a holding portion formed horizontally at the upper portion of this wall portion and having a U-shaped cross section There is known a frame member having a structure (see, for example, FIGS. 2 and 5 of Patent Document 1). In this frame member, a solar cell module is formed by sandwiching the solar cell panel up and down by inserting a side of the solar cell panel into a holding portion having a U-shaped cross section.

  In recent years, the solar cell module using such a frame member has been increased in size, and therefore, in addition to the frame member, many use a reinforcing member (see, for example, FIGS. 1 and 4 of Patent Document 1). reference). This reinforcing member is generally installed between a pair of frame members that hold two opposite sides of the solar cell panel.

  20-24 shows the solar cell module 3 of the other example using such a reinforcement member, FIG. 20 is a top view of the solar cell module 3, FIG. 21 is the front view, 22 is a cross-sectional view taken along D1-D1 in FIG. 20, FIG. 23 is a cross-sectional view taken along D2-D2 in FIG. 20, and FIG. 24 is an exploded perspective view of a joint portion between the frame member and the reinforcing member in the solar cell module 3. It is.

  In the solar cell module 3 using the rectangular solar cell panel described above, in general, two pairs of frame members are used, but instead of the frame members, a pair of solar members are used by using two reinforcing members. A battery module is configured. That is, the solar cell module 3 includes a pair of frame members 10a and 10a that hold two opposite sides of the rectangular solar cell panel 9, and three reinforcing frames that are installed between the frame members. Members 20a, 20a, and 20a are provided. Of the three reinforcing frame members 20a, 20a, 20a, two at both ends are used instead of the pair of frame members.

  Specifically, the solar cell panel 9 has the following structure. That is, in FIGS. 20 to 24, the frame member 10 a includes a holding wall 11, a holding upper piece 12, a holding lower piece 13, a wall portion 14, and a bottom piece 15. The holding wall 11 is formed vertically along one side of the solar cell panel 9. The holding upper piece 12 and the holding lower piece 13 are both formed to extend horizontally from the upper end and the lower end of the holding wall 11 with substantially the same length. The holding wall 11, the holding upper piece 12, and the holding lower piece 13 constitute a holding portion having a U-shaped cross section as described above.

  The wall portion 14 is continuously provided in a wall shape below the holding wall 11. Further, the bottom piece 15 is formed to be stretched inwardly on the inner side of the lower end of the wall portion 14. The frame member 10 a is formed with a reinforcing frame fitting space 16 surrounded by the lower surface 13 a of the holding lower piece 13, the inner side surface 14 a of the wall portion 14, and the upper surface 15 a of the bottom piece 15.

  The reinforcing frame member 20a is formed of a square pipe having a cross-section in cross section and having an internal space 21. The reinforcing frame member 20a is sandwiched between the lower surface 13a of the holding lower piece 13 and the upper surface 15a of the bottom piece 15, and the edge 24 of the reinforcing frame member 20a is the inner side surface 14a of the wall portion 14 of the frame member 10a. Is inserted into the reinforcing frame insertion space 16 so as to abut against the outer space. Then, the screw 6 was passed through a through screw hole 17 penetrating the wall portion 14 provided in the wall portion 14 of the frame member 10a, and the screw 6 was projected from the internal space 21 of the reinforcing frame member 20a. The reinforcing frame member 20a is coupled to the frame member 10a by being screwed onto the screw locking piece 22.

  As can be seen from the above description, the reinforcing frame member 20a is formed of a square pipe and is reinforced so that the end edge 24 of the reinforcing frame member 20a contacts the inner side surface 14a of the wall portion 14 of the frame member 10a. It is inserted into the frame insertion space 16 and coupled to the frame member 10a.

In the present specification, in the solar cell module that holds the sides of the solar cell panel with the frame member, “inside” means “the side in the direction in which the solar cell panel exists”.
JP-A-9-148612

  By the way, when the solar cell module 3 or the like is used in a house or the like, the solar cell module 3 or the like is often installed outdoors such as a roof so that sunlight can be used without waste. In this case, the solar cell module 3 is formed of a square pipe from a gap with the wall portion 14 of the frame member 10a, which is wetted by rain and is in contact with the edge 24 of the reinforcing frame member 20a, during raining. Often, rainwater or the like flows into the internal space 21 of the reinforcing frame member 20a and stays in the internal space 21.

  Rainwater or the like staying in the internal space 21 of the reinforcing frame member 20a may freeze in a severe cold season such as in a cold district. As described above, the reinforcing frame member 20a is formed of a square pipe and is sandwiched between the lower surface 13a of the holding lower piece 13 and the upper surface 15a of the bottom piece 15, and the edge 24 of the reinforcing frame member 20a is The frame member 10a is inserted into the reinforcing frame insertion space 16 so as to contact the inner surface 14a of the wall 14 of the frame member 10a, and is coupled to the frame member 10a.

  Therefore, the internal space 21 of the reinforcing frame member 20a becomes a closed space, and rainwater or the like flowing into the internal space 21 is not easily discharged to the outside, and when frozen in a severe cold season in a cold region, the frame member 10a and the reinforcing frame The gap with the member 20a is also frozen by this rainwater. Therefore, since the internal space 21 of the reinforcing frame member 20a is a sealed space, in severe cold seasons in cold regions, the rain water freezes and the volume expands, which may destroy the reinforcing frame member 20a. This was one of the causes of damage to the solar cell module 3.

  Therefore, the present invention has been made to improve such a situation, and when a solar cell module is installed on a roof or the like, it can be prevented from being destroyed by freezing rainwater that has flown in. The present invention intends to provide a solar cell module.

  As a solar cell module of this invention, two types of solar cell modules, a 1st solar cell module and a 2nd solar cell module, can be comprised. First, the first solar cell module will be described.

  A first solar cell module of the present invention is a solar cell module configured to include a frame member that holds one side of a solar cell panel and a reinforcing frame member that is coupled to the frame member.

  The frame member, which is a component of the first solar cell module, has a horizontally extending holding portion that holds one side of the solar cell panel and holds the solar cell panel, and downwards below the holding portion. And a bottom piece extending inwardly on the inner side of the lower end of the wall portion. The frame member is formed with a reinforcing frame fitting space surrounded by the lower surface of the holding portion, the inner surface of the wall portion, and the upper surface of the bottom piece.

  The reinforcing frame member is formed of a square pipe having a cross-sectional shape and having an internal space, and is fitted into the reinforcing frame insertion space so as to be sandwiched between the lower surface of the holding portion of the frame member and the upper surface of the bottom piece. Inserted and coupled to the frame member.

  In the first solar cell module described above, a protruding piece is formed on the inner surface of the wall portion facing the reinforcing frame insertion space of the frame member, and the edge of the reinforcing frame member is in contact with the protruding piece. A gap is formed between the reinforcing frame member and the inner side surface of the wall so that water such as rainwater flowing in the internal space of the reinforcing frame member can flow out without being retained.

  Therefore, even if rainwater or the like flows into the internal space of the reinforcing frame member formed by the square pipe, the reinforcing frame member and the inner surface of the wall portion in a state where the edge of the reinforcing frame member is in contact with the protruding piece. Due to the gap formed between them, rainwater or the like flowing in the internal space of the reinforcing frame member can be discharged outside without being retained. Therefore, according to the first solar cell module, the reinforcing frame member is destroyed by freezing rainwater or the like flowing into the internal space of the reinforcing frame member and expanding its volume during a severe cold season in a cold region. Can be prevented.

  In the first solar cell module described above, the reinforcement frame member is coupled to the frame member through a through screw hole that penetrates the wall portion of the frame member and the internal space of the reinforcement frame member. You may make it carry out by screwing through the provided screw locking piece. By doing so, the reinforcing frame member can be firmly and easily coupled to the frame member with a simple configuration.

  Further, in the first solar cell module described above, the projecting piece on the inner surface of the frame member is formed at the upper corner formed at the junction between the inner surface of the wall portion of the frame member and the lower surface of the holding portion, You may make it form in the lower corner formed in the junction part of the inner surface of the wall part of a member, and the upper surface of a bottom piece.

  By doing in this way, not only can the above-mentioned gap be formed by the edge of the reinforcing frame member coming into contact with the protruding pieces formed at the upper and lower corners, but also at the upper and lower corners. The strength of the frame member can be improved by the formed projecting piece.

  In the above case, the protruding piece formed at the lower corner is formed such that the vertical height of the protruding piece from the upper surface of the bottom piece of the frame member is equal to or less than the thickness of the bottom side of the reinforcing frame member. Is preferred.

  By doing so, the height of the protruding piece formed at the lower corner with which the edge of the reinforcing frame member abuts is lower than the thickness of the bottom side of the reinforcing frame member. It will not be a hindrance to the outflow of rainwater etc. flowing through the interior space. Therefore, rainwater or the like flowing through the internal space can be easily discharged outside without staying.

  Further, in the first solar cell module described above, the height of the lower end of the projecting piece from the upper surface of the bottom piece of the frame member is the height of the bottom of the reinforcing frame member. You may make it form so that it may become higher than thickness.

  By doing in this way, the height of the position of the lower end of the projection piece with which the edge of the reinforcement frame member abuts is higher than the thickness of the bottom side of the reinforcement frame member. It does not become an obstacle to the outflow of rainwater etc. flowing through the internal space. Therefore, rainwater or the like flowing through the internal space can be easily discharged outside without staying.

  Next, the 2nd solar cell module of this invention is demonstrated. Similar to the first solar cell module of the present invention, the second solar cell module of the present invention includes a frame member that holds one side of the solar cell panel, and a reinforcing frame member that is coupled to the frame member. It is the comprised solar cell module.

  The frame member, which is a constituent element of the second solar cell module, has a horizontally extending holding portion that holds one side of the solar cell panel and holds the solar cell panel, and downwards below the holding portion. And a bottom piece extending inwardly on the inner side of the lower end of the wall portion. The frame member is formed with a reinforcing frame fitting space surrounded by the lower surface of the holding portion, the inner surface of the wall portion, and the upper surface of the bottom piece.

  The reinforcing frame member is formed of a square pipe having a cross-sectional shape and having an internal space, and is sandwiched between the lower surface of the holding portion of the frame member and the upper surface of the bottom piece, and at least the edge of the reinforcing frame member A part of the frame member is inserted into the reinforcing frame insertion space so as to contact the inner surface of the wall portion of the frame member, and is coupled to the frame member.

  In the second solar cell module, at least a part of the lower end side of the end portion of the reinforcing frame member is deleted, and the end edge of the reinforcing frame member is in contact with the inner surface of the wall portion of the frame member. Further, an opening is formed at the end of the reinforcing frame member so that water such as rain water flowing through the internal space of the reinforcing frame member does not stay and can flow out to the outside.

  Therefore, even if rainwater or the like flows into the internal space of the reinforcing frame member formed by the square pipe, the opening formed at the end of the reinforcing frame member with the edge of the reinforcing frame member in contact with the frame member By the portion, rainwater or the like flowing in the internal space of the reinforcing frame member can be discharged to the outside without staying. Therefore, according to the second solar cell module, the reinforcing frame member is destroyed by freezing rainwater or the like flowing into the internal space of the reinforcing frame member and expanding its volume during a severe cold season in a cold region. Can be prevented.

  In the second solar cell module described above, similarly to the first solar cell module, the reinforcing frame member is coupled to the frame member with a through screw hole penetrating the wall portion provided in the wall portion of the frame member, and Alternatively, it may be performed by screwing through a screw locking piece protruding from the internal space of the reinforcing frame member. By doing so, the reinforcing frame member can be firmly and easily coupled to the frame member with a simple configuration.

  According to the present invention, in the solar cell module, the protruding piece is formed on the inner surface of the wall portion facing the reinforcing frame insertion space of the frame member, and the edge of the reinforcing frame member is in contact with the protruding piece Thus, a gap is formed between the reinforcing frame member and the inner side surface of the wall portion.

Alternatively, at least part of the lower end side of the end portion of the reinforcing frame member is deleted, and the end of the reinforcing frame member is in contact with the inner surface of the wall portion of the frame member. An opening is formed on the side wall. Therefore, even if rainwater or the like flows into the internal space of the reinforcing frame member formed by the square pipe, the edge of the reinforcing frame member is in contact with the protruding piece formed on the frame member. The side wall of the end portion of the reinforcing frame member due to the gap formed between the reinforcing frame member and the inner side surface of the wall portion or in a state where the end edge of the reinforcing frame member is in contact with the frame member Through the above-described opening formed in the frame, rainwater or the like flowing through the internal space of the reinforcing frame member can be discharged to the outside without being retained.

  Therefore, it is possible to prevent the reinforcement frame member from being destroyed due to freezing of rainwater or the like flowing into the internal space of the reinforcement frame member due to freezing in a cold region in a cold region, etc.

  Next, the solar cell module in the embodiment of the present invention will be described with reference to the drawings. In the description of the present embodiment, solar cell modules in three types of embodiments of Embodiments 1 to 3 will be described.

  The solar cell module according to the present embodiment is installed outdoors such as a roof of a house so that sunlight can be used without waste. It is assumed that the battery module gets wet and rainwater or the like enters the solar cell module in the present embodiment.

<Embodiment 1>
1 is a plan view of a solar cell module 1a according to Embodiment 1, FIG. 2 is a front view thereof, FIG. 3 is a cross-sectional view taken along line A1-A1 in FIG. 1, and FIG. FIG. 5 is an exploded perspective view of a joint portion between the frame member 10b and the reinforcing member 20a in the solar cell module 1a.

  The solar cell module 1a in the first embodiment has the following structure. That is, in FIGS. 1-5, the solar cell panel 9 is rectangular shape, The long side which this solar cell panel 9 mutually opposes is hold | maintained with a pair of frame members 10b and 10b. In addition, three reinforcing frame members 20 a, 20 a, and 20 a are installed on the back side of the solar cell panel 9 between both ends and the middle point of the pair of frame members 10 b and 10 b.

  The frame member 10 b includes a holding wall 11, a holding upper piece 12, a holding lower piece 13, a wall portion 14, and a bottom piece 15. The holding wall 11 is formed vertically along the long side of the solar cell panel 9. The holding upper piece 12 and the holding lower piece 13 are both formed to extend horizontally from the upper end and the lower end of the holding wall 11 with substantially the same length. The long side of the solar cell panel 9 is inserted and held in a portion having a U-shaped cross section constituted by the holding wall 11, the holding upper piece 12, and the holding lower piece 13.

  Further, the portion constituted by the holding wall 11, the holding upper piece 12, and the holding lower piece 13 is stretched horizontally to hold the solar cell panel by sandwiching one side of the solar cell panel described above. Corresponds to “holding part”.

  The wall portion 14 is continuously provided in a wall shape below the holding wall 11. Further, the bottom piece 15 is formed to be stretched inwardly on the inner side of the lower end of the wall portion 14. The frame member 10 b is formed with a reinforcing frame fitting space 16 surrounded by the lower surface 13 a of the holding lower piece 13, the inner side surface 14 a of the wall portion 14, and the upper surface 15 a of the bottom piece 15.

  In the frame member 10b, as shown in FIGS. 4 and 5, the upper corner formed at the joint portion between the inner side surface 14a of the wall portion 14 and the lower surface 13a of the holding lower piece 13, and the wall portion 14 are used. Projection pieces 18 and 18 are formed at the lower corner formed at the joint portion between the inner side surface 14 a of the base plate 15 and the upper surface 15 a of the bottom piece 15.

  The reinforcing frame member 20a is formed of a square pipe having an internal space 21 with a cross section in cross section. When it rains, water such as rainwater enters the internal space 21 of the reinforcing frame member 20a formed by the square pipe.

  4 and 5, the reinforcing frame member 20a is sandwiched between the lower surface 13a of the holding lower piece 13 and the upper surface 15a of the bottom piece 15, and the edge 24 of the reinforcing frame member 20a is Are inserted into the reinforcing frame insertion space 16 so as to be in contact with the projection pieces 18.

  Therefore, a gap 7 is formed between the reinforcing frame member 20 a and the inner side surface 14 a of the wall portion 14 in a state where the end edge 24 of the reinforcing frame member 20 a is in contact with the protruding pieces 18 and 18. The gap 7 is formed in such a size that water such as rain water that flows into the internal space 21 of the reinforcing frame member 20a can flow outside without staying.

  Therefore, the projection pieces 18 and 18 have the size of the gap 7 described above so that the water such as rain water that has entered the internal space 21 of the reinforcing frame member 20a can flow out without staying. It is formed to have a size.

  Then, as shown in FIGS. 4 and 5, the screw 6 is passed through a through screw hole 17 penetrating the wall portion 14 provided in the wall portion 14 of the frame member 10b, and the screw 6 is connected to the reinforcing frame member. The reinforcing frame member 20a is coupled to the frame member 10b by screwing onto a screw locking piece 22 projecting from the internal space 21 of 20a. By doing so, the reinforcing frame member 20a can be firmly and easily coupled to the frame member 10b with a simple configuration.

  According to the solar cell module 1a in the first embodiment, as described above, the solar cell module 1a includes a protruding piece on the inner side surface 14a of the wall portion 14 facing the reinforcing frame insertion space 16 of the frame member 10b. 18 and 18 are formed, and in a state where the edge 24 of the reinforcing frame member 20a is in contact with the protruding pieces 18 and 18, the reinforcing frame member 20a and the inner side surface 14a of the wall portion 14 are reinforced. A gap 7 is formed through which water flowing through the internal space 21 of the frame member 20a can flow out without staying.

  Therefore, even if rainwater or the like flows into the internal space 21 of the reinforcing frame member 20a formed of a square pipe, the reinforcing frame 20 is in a state where the edge 24 of the reinforcing frame member 20a is in contact with the protruding pieces 18 and 18. Due to the gap 7 formed between the member 20a and the inner side surface 14a of the wall portion 14, rainwater or the like flowing in the internal space 21 of the reinforcing frame member 20a can be discharged outside without being retained.

  Therefore, according to the solar cell module 1a in the above-described first embodiment, the rainwater or the like flowing into the internal space 21 of the reinforcement frame member 20a freezes and the volume expands in a severe cold season in a cold region. It is possible to prevent the member 20a from being destroyed.

  Further, in the solar cell module 1a in the first embodiment, as shown in FIG. 4, the protrusion formed at the lower corner formed at the joint portion between the inner side surface 14a of the wall portion 14 and the upper surface 15a of the bottom piece 15. The piece 18 is formed such that the height h2 of the protrusion piece 18 in the vertical direction from the upper surface 15a of the bottom piece 15 of the frame member 10b is equal to or less than the thickness h1 of the bottom side 25 of the reinforcing frame member 20a.

  Therefore, the height h2 of the projection piece 18 formed at the lower corner with which the edge 24 of the reinforcement frame member 20a abuts is lower than the thickness h1 of the bottom 25 of the reinforcement frame member 20a. Is not an obstacle to the outflow of rainwater or the like flowing through the internal space 21 of the reinforcing frame member 20a. Therefore, rainwater or the like flowing through the internal space 21 of the reinforcing frame member 20a can be easily discharged outside without staying.

  In the solar cell module 1a in the first embodiment, the reinforcing frame member 20a adopts the shape of FIG. 6A as the cross-sectional shape as shown in FIG. However, the cross-sectional shape of the reinforcing frame member 20a is not limited to this, and any shape of the reinforcing frame member shown in FIGS. 6B to 6G may be adopted. This also applies to the second and third embodiments described later.

<Embodiment 2>
7 is a plan view of the solar cell module 1b in the second embodiment, FIG. 8 is a front view thereof, FIG. 9 is a cross-sectional view along B1-B1 in FIG. 7, and FIG. 10 is a cross-sectional view along B2-B2 in FIG. FIG. 11 is an exploded perspective view of a joint portion between the frame member 10c and the reinforcing member 20a in the solar cell module 1b.

  The solar cell module 1b according to the second embodiment uses a frame member 10c instead of the frame member 10b of the solar cell module 1a according to the first embodiment, and otherwise the solar cell module according to the first embodiment. Same as 1a.

  That is, in the solar cell module 1a in the first embodiment, the upper corner formed at the joint portion between the inner side surface 14a of the wall portion 14 of the frame member 10b and the lower surface 13a of the holding lower piece 13, and the inner portion of the wall portion 14 Projection pieces 18 and 18 are formed at the lower corners formed at the joint between the side surface 14 a and the upper surface 15 a of the bottom piece 15.

  On the other hand, in the solar cell module 1b in Embodiment 2, one protrusion piece 18 is formed in the middle part of the inner surface 14a of the wall part 14 of the frame member 10c. The role of the protrusion piece 18 formed in the middle part of the inner side surface 14a of the wall part 14 of the frame member 10c is the protrusion formed on the wall part 14 of the frame member 10b of the solar cell module 1a in the first embodiment. The roles of the pieces 18 and 18 are exactly the same.

  That is, as shown in FIGS. 10 and 11, the reinforcing frame member 20a is sandwiched between the lower surface 13a of the holding lower piece 13 and the upper surface 15a of the bottom piece 15, and the edge 24 of the reinforcing frame member 20a is The frame member 10c is inserted into the reinforcing frame insertion space 16 so as to come into contact with the protruding piece 18 formed in the middle part of the inner side surface 14a of the wall part 14 of the frame member 10c.

  Therefore, in a state where the edge 24 of the reinforcing frame member 20a is in contact with the protruding piece 18 formed in the middle portion of the inner side surface 14a of the wall portion 14, the reinforcing frame member 20a and the inner side surface 14a of the wall portion 14 are in contact with each other. A gap 7 is formed between them. The gap 7 is formed in such a size that water such as rain water that flows into the internal space 21 of the reinforcing frame member 20a can flow outside without staying.

  Therefore, the protrusion piece 18 has a size such that the size of the gap 7 is such that water such as rainwater that has entered the internal space 21 of the reinforcing frame member 20a can flow out to the outside without staying. It is formed.

  Therefore, according to the solar cell module 1b in the second embodiment, the solar cell module 1a in the second embodiment flows into the internal space 21 of the reinforcing frame member 20a in a severe cold season or the like in the cold district as in the first embodiment. It is possible to prevent the reinforcing frame member 20a from being destroyed by freezing rainwater or the like and expanding its volume.

  Further, in the solar cell module 1b according to the second embodiment, as shown in FIG. 10, the protruding piece 18 formed on the middle part of the inner side surface 14a of the wall portion 14 of the frame member 10c is formed on the frame member 10c. The height h3 of the position of the lower end 18a of the projection piece 18 from the upper surface 15a of the bottom piece 15 is formed so as to be higher than the thickness h1 of the bottom side 25 of the reinforcing frame member 20a.

  Therefore, the height h3 of the position of the lower end 18a of the projection piece 18 with which the edge 24 of the reinforcement frame member 20a abuts is higher than the thickness h1 of the bottom side 15 of the reinforcement frame member 20a. It does not hinder the outflow of rainwater or the like flowing through the internal space 21 of the reinforcing frame member 20a. Therefore, rainwater or the like flowing through the internal space 21 of the reinforcing frame member 20a can be easily discharged outside without staying.

  In the solar cell module 1b according to the second embodiment, the number of the projecting pieces 18 formed on the middle part of the inner side surface 14a of the wall 14 of the frame member 10c is one. A plurality of the inner side surfaces 14a of the fourteen may be formed in the middle. FIG. 12 is a cross-sectional view of the frame member 10 d when two protrusion pieces 18 are formed in the middle of the inner side surface 14 a of the wall portion 14.

  Also in this case, the protrusion piece 18 formed at the lowermost part of the middle portion of the inner side surface 14a of the wall portion 14 is higher than the position of the lower end 18a of the protrusion piece 18 from the upper surface 15a of the bottom piece 15 of the frame member 10c. The length h4 is formed to be higher than the thickness h1 of the bottom 25 of the reinforcing frame member 20a.

<Embodiment 3>
13 is a plan view of solar cell module 2 according to Embodiment 3, FIG. 14 is a front view thereof, FIG. 15 is a cross-sectional view taken along C1-C1 in FIG. 13, and FIG. 16 is a cross-sectional view taken along C2-C2 in FIG. FIG. 17 is an exploded perspective view of a joint portion between the frame member 10a and the reinforcing member 20b in the solar cell module 2.

  The solar cell module 2 in the third embodiment has the following structure. That is, in FIGS. 13-17, the solar cell panel 9 is rectangular shape, The long side which this solar cell panel 9 opposes is hold | maintained with a pair of frame members 10a and 10a. Further, three reinforcing frame members 20b, 20b, 20b are installed on the back side of the solar cell panel 9 between both ends and the middle point of the pair of frame members 10a, 10a.

  The frame member 10 a includes a holding wall 11, a holding upper piece 12, a holding lower piece 13, a wall portion 14, and a bottom piece 15. The holding wall 11 is formed vertically along the long side of the solar cell panel 9. The holding upper piece 12 and the holding lower piece 13 are both formed to extend horizontally from the upper end and the lower end of the holding wall 11 with substantially the same length. The long side of the solar cell panel 9 is inserted and held in a portion having a U-shaped cross section constituted by the holding wall 11, the holding upper piece 12, and the holding lower piece 13.

  Further, the portion constituted by the holding wall 11, the holding upper piece 12, and the holding lower piece 13 is stretched horizontally to hold the solar cell panel by sandwiching one side of the solar cell panel described above. Corresponds to “holding part”.

  The wall portion 14 is continuously provided in a wall shape below the holding wall 11. Further, the bottom piece 15 is formed to be stretched inwardly on the inner side of the lower end of the wall portion 14. The frame member 10 a is formed with a reinforcing frame fitting space 16 surrounded by the lower surface 13 a of the holding lower piece 13, the inner side surface 14 a of the wall portion 14, and the upper surface 15 a of the bottom piece 15.

  The reinforcing frame member 20b is formed of a square pipe having a cross-sectional cross section and having an internal space 21. As shown in FIGS. 16 and 17, in the reinforcing frame member 20b, a part of the lower end side of the end portion 23 of the reinforcing frame member 20b is obliquely deleted. Further, when it rains, water such as rainwater enters the internal space 21 of the reinforcing frame member 20b formed by the square pipe.

  4 and 5, the reinforcing frame member 20b is sandwiched between the lower surface 13a of the holding lower piece 13 and the upper surface 15a of the bottom piece 15, and at least a part of the edge 24 of the reinforcing frame member 20b. Is inserted into the reinforcing frame insertion space 16 so as to be in contact with the inner side surface 14a of the wall portion 14 of the frame member 10a.

  Therefore, with the edge 24 of the reinforcing frame member 20b in contact with the inner side surface 14a of the wall portion 14 of the frame member 10a, there is a right triangle between the reinforcing frame member 20b and the inner side surface 14a of the wall portion 14. A shaped opening 8 is formed. The opening 8 is formed in such a size that rainwater or the like flowing into the internal space 21 of the reinforcing frame member 20b can flow out without staying.

  Therefore, the size of the opening 8 is formed such that water such as rainwater that has entered the internal space 21 of the reinforcing frame member 20b can flow out to the outside without staying.

  Then, as shown in FIGS. 4 and 5, the screw 6 is passed through the through screw hole 17 penetrating the wall portion 14 provided in the wall portion 14 of the frame member 10a, and the screw 6 is connected to the reinforcing frame member. The reinforcing frame member 20b is coupled to the frame member 10a by being screwed onto a screw locking piece 22 projecting from the internal space 21 of 20b. By doing so, the reinforcing frame member 20b can be firmly and easily coupled to the frame member 10a with a simple configuration.

  According to the solar cell module 2 in Embodiment 3 described above, as described above, a part of the lower end side of the end portion 23 of the reinforcing frame member 20b is obliquely deleted in the solar cell module 2, With the edge 24 of the reinforcing frame member 20b in contact with the inner side surface 14a of the wall portion 14 of the frame member 10a, the inner space 21 of the reinforcing frame member 20b flows through the side wall 26 of the end portion 23 of the reinforcing frame member 20b. An opening 8 is formed through which water can flow out without stagnation.

  Therefore, even if rainwater or the like flows into the internal space 21 of the reinforcing frame member 20b formed of a square pipe, the end portion of the reinforcing frame member 20b is in a state where the edge 24 of the reinforcing frame member 20b is in contact with the frame member 10a. Through the opening 8 formed in the side wall 26 of 23, rainwater or the like flowing through the internal space 21 of the reinforcing frame member 20b can be discharged outside without staying.

  Therefore, according to the solar cell module 2 in the above-described third embodiment, rainwater or the like flowing into the internal space 21 of the reinforcing frame member 20b is frozen and the volume expands in a severe cold season in a cold region. It is possible to prevent the member 20b from being destroyed.

  In the solar cell module 2 according to the third embodiment, a part of the lower end side of the end portion 23 of the reinforcing frame member 20b is obliquely deleted, and the reinforcing frame is formed on the inner side surface 14a of the wall portion 14 of the frame member 10a. The shape of the opening 8 formed between the reinforcing frame member 20b and the inner side surface 14a of the wall 14 in a state where the end edge 24 of the member 20b is in contact is a right triangle.

  However, the shape of the opening portion 8 formed between the reinforcing frame member 20b and the inner side surface 14a of the wall portion 14 is not limited to the right triangle described above, and may be other shapes. 18 and 19 show, as an example in which the shape of the opening 8 is other than the right triangle described above, the shape of the side surface of the end portion of the reinforcing frame member 20c and the reinforcing frame member 20d. Is shown.

3 is a plan view of the solar cell module according to Embodiment 1. FIG. 3 is a front view of the solar cell module according to Embodiment 1. FIG. It is A1-A1 sectional drawing of FIG. It is A2-A2 sectional drawing of FIG. 3 is an exploded perspective view of a joint portion between a frame member and a reinforcing member of the solar cell module according to Embodiment 1. FIG. (A)-(g) is sectional drawing which showed the example of the cross-sectional shape of the reinforcement frame member of the solar cell module in Embodiment 1. FIG. 6 is a plan view of a solar cell module according to Embodiment 2. FIG. 6 is a front view of a solar cell module according to Embodiment 2. FIG. It is B1-B1 sectional drawing of FIG. It is B2-B2 sectional drawing of FIG. 6 is an exploded perspective view of a joint portion between a frame member and a reinforcing member of a solar cell module according to Embodiment 2. FIG. 6 is a cross-sectional view of another example of a frame member of a solar cell module according to Embodiment 2. FIG. 6 is a plan view of a solar cell module according to Embodiment 3. FIG. 6 is a front view of a solar cell module according to Embodiment 3. FIG. It is C1-C1 sectional drawing of FIG. It is C2-C2 sectional drawing of FIG. 10 is an exploded perspective view of a joint portion between a frame member and a reinforcing member of a solar cell module according to Embodiment 3. FIG. It is the side view (the 1) of the edge part of the reinforcement frame member which showed the other example of the shape of the opening part of the solar cell module in Embodiment 3. FIG. FIG. 10 is a side view (No. 2) of the end portion of the reinforcing frame member showing another example of the shape of the opening of the solar cell module according to Embodiment 3. It is a top view of the solar cell module of a prior art example. It is a front view of the solar cell module of a prior art example. It is D1-D1 sectional drawing of FIG. It is D2-D2 sectional drawing of FIG. It is a disassembled perspective view of the coupling | bond part of the frame member and reinforcement member of the solar cell module of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a Solar cell module 1b Solar cell module 2 Solar cell module 3 Solar cell module 6 Screw 7 Gap 8 Opening 9 Solar cell panel 10a Frame member 10b Frame member 10c Frame member 10d Frame member 11 Holding wall 12 Holding upper piece 13 Holding lower piece 13a lower surface 14 wall portion 14a inner surface 15 bottom piece 15a upper surface 16 reinforcing frame insertion space 17 through screw hole 18 projecting piece 18a lower end 20a reinforcing frame member 20b reinforcing frame member 20c reinforcing frame member 20d reinforcing frame member 21 internal space 22 screw engagement Stop piece 23 End 24 Edge 25 Bottom 26 Side wall

Claims (7)

A solar cell module comprising a frame member that holds one side of a solar cell panel, and a reinforcing frame member coupled to the frame member,
The frame member includes a horizontally extending holding portion that holds the solar cell panel by sandwiching one side of the solar cell panel, and a wall portion that is continuously provided downward below the holding portion, A bottom piece extending inwardly on the inner side of the lower end of the wall portion, and a reinforcement surrounded by the lower surface of the holding portion, the inner side surface of the wall portion, and the upper surface of the bottom piece. Forming a frame insertion space,
The reinforcing frame member is formed of a square pipe having a cross-section in cross section and having an internal space, and is inserted into the reinforcing frame insertion space so as to be sandwiched between the lower surface of the holding portion of the frame member and the upper surface of the bottom piece. Inserted and joined to the frame member,
A protrusion piece is formed on the inner side surface of the wall portion facing the reinforcement frame insertion space of the frame member, and the reinforcement frame member and the edge member are in contact with the edge of the reinforcement frame member. A solar cell module, characterized in that a gap is formed between the inner side surface of the wall portion so that water such as rainwater flowing through the internal space of the reinforcing frame member can flow out without stagnation. The solar cell module according to claim 1, wherein
The reinforcing frame member is coupled to the frame member by a through screw hole provided in the wall portion of the frame member, and a screw lock projecting in the internal space of the reinforcing frame member. A solar cell module formed by screwing through a piece. In the solar cell module according to claim 1 or 2,
The projection piece includes an upper corner formed at a joint portion between the inner side surface of the wall portion of the frame member and the lower surface of the holding portion, and a joint portion between the inner side surface of the wall portion of the frame member and the upper surface of the bottom piece. The solar cell module formed in the lower corner formed in the. In the solar cell module according to claim 3,
The protruding piece formed at the lower corner is formed such that the vertical height of the protruding piece from the upper surface of the bottom piece of the frame member is equal to or less than the thickness of the bottom side of the reinforcing frame member. Solar cell module. In the solar cell module according to claim 1 or 2,
The protruding piece is a solar cell module in which the height of the position of the lower end of the protruding piece from the upper surface of the bottom piece of the frame member is higher than the thickness of the bottom side of the reinforcing frame member. A solar cell module comprising a frame member that holds one side of a solar cell panel, and a reinforcing frame member coupled to the frame member,
The frame member includes a horizontally extending holding portion that holds the solar cell panel by sandwiching one side of the solar cell panel, and a wall portion that is continuously provided downward below the holding portion, A bottom piece extending inwardly on the inner side of the lower end of the wall portion, and a reinforcement surrounded by the lower surface of the holding portion, the inner side surface of the wall portion, and the upper surface of the bottom piece. Forming a frame insertion space,
The reinforcing frame member is formed of a square pipe having a cross-sectional shape and having an internal space, and is sandwiched between the lower surface of the holding portion of the frame member and the upper surface of the bottom piece, and the edge of the reinforcing frame member At least a portion is inserted into the reinforcing frame insertion space and joined to the frame member so as to contact the inner surface of the wall portion of the frame member;
At least a part of the lower end side of the end portion of the reinforcing frame member is deleted, and the end of the reinforcing frame member is in contact with the inner side surface of the wall portion of the frame member. The solar cell module according to claim 1, wherein an opening is formed at the end so that water such as rainwater flowing through the internal space of the reinforcing frame member can flow out without being retained. The solar cell module according to claim 6, wherein
The reinforcement frame member is coupled to the frame member by a through screw hole provided in the wall portion of the frame member, and a screw lock projecting in the internal space of the reinforcement frame member. A solar cell module formed by screwing through a piece.

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