JP2010161218A - Frame for solar cell module, method of manufacturing the same, and solar cell module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a frame for solar cell module for achieving superior water sealing performance and buffering effect by arranging a water sealing member at a desired place and suppressing displacement of the water sealing member. <P>SOLUTION: The frame includes a frame body 21 in which a groove 27 to which a circumferential part is inserted is provided along the longitudinal direction and a water sealing member 23 mainly formed of a soft resin material, integrated with the frame body 21 by extrusion molding to cover an internal wall 37 of the groove 27, and provided between the circumferential part and the internal wall 37 of the groove 27 when the circumferential part is inserted into the groove 27. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a solar cell module frame, a manufacturing method thereof, and a solar cell module.

  In recent years, solar cells that generate power using solar energy that has little influence on the global environment have attracted attention. In general, a solar cell module which is a main part of a solar cell includes a solar cell module body including solar cells and a frame body attached along the peripheral edge of the module body. The frame has a groove for inserting the peripheral edge of the module body.

  In such a solar cell module, in order to ensure the water-stopping performance between the module main body and the frame body, the water-stopping composed of rubber, thermoplastic elastomer or the like between the peripheral edge portion of the module main body and the groove portion of the frame body. A member is interposed. By interposing this water stop member, it is possible to obtain a buffering effect that protects the module main body from shocks such as vibration.

  Examples of the water stop member include a sealing material injected between the peripheral edge of the module main body and the groove of the frame body, an elastomer molded in accordance with the gap shape between the peripheral edge of the module main body and the groove of the frame body, and the like A molded body made of, for example, has been proposed (see Patent Documents 1 and 2, for example).

Japanese Utility Model Publication No.59-112960 JP 2001-230440 A

  However, when a sealing material is used as the water-stopping member, the sealing material is injected into these gaps after inserting the peripheral edge of the module body into the groove of the frame body, so that the sealing material may not spread over the entire gap. is there. As described above, when the sealing material does not reach the desired position, the water stopping performance and the buffering effect cannot be sufficiently obtained.

  In addition, when using a molded body made of an elastomer or the like as the water-stopping member, the molded body is merely fitted to the peripheral edge of the module main body, so that it can be easily displaced when inserted into the groove. It may end up. Thus, if a water stop member slip | deviates from the desired position in the groove part of a frame, water stop performance and a buffer effect will not fully be acquired.

  Therefore, the present invention has been made in view of such a point, and the object of the present invention is to provide a good water stop by disposing the water stop member at a desired position and suppressing the displacement of the water stop member. The object is to provide a frame for a solar cell module capable of obtaining performance and a buffer effect and a solar cell module provided with the frame.

  The frame for a solar cell module according to the present invention is a long frame that is attached along the peripheral edge of the solar cell module body, and the groove into which the peripheral edge is inserted is provided along the longitudinal direction. A metal frame main body and a soft resin as a main component, and integrated with the frame main body by extrusion so as to cover the inner wall of the groove, and when the peripheral edge is inserted into the groove, A water stop member interposed between the inner wall of the groove portion.

  In this configuration, the water-stop member is mainly composed of a soft resin, and covers the inner wall of the groove portion by extrusion and is integrated with the frame body. Therefore, the water-stop member is disposed at a desired position in the groove portion. It is possible to prevent the water stop member from being displaced. Thereby, favorable water stop performance and a buffer effect can be obtained.

  The groove portion has an opening portion that opens along the longitudinal direction on the near side in the insertion direction in which the peripheral edge portion is inserted, and the inner wall of the groove portion is formed when the peripheral edge portion is inserted into the groove portion. An upper side surface facing the upper surface of the peripheral edge portion, a lower side surface facing the lower surface of the peripheral edge portion, and a rear side surface located on the back side in the insertion direction and facing the end surface of the peripheral edge portion. The water stop member protrudes toward the lower side surface from the water stop member main body covering the upper side surface, the water stop member main body covering the upper side surface, the back side surface and the lower side surface, and the longitudinal direction. And an upper convex portion that extends substantially parallel to the upper surface and a lower convex portion that protrudes from the water blocking member main body covering the lower side surface toward the upper side surface and extends substantially parallel to the longitudinal direction. preferable.

  In this configuration, the water stop member has an upper convex portion extending from the water stop member main body covering the upper side surface and a lower convex portion extending from the water stop member main body covering the lower side surface. When inserted into the groove, the peripheral edge is in line contact or surface contact with the upper and lower protrusions in the longitudinal direction, and the water stop is a part other than the upper and lower protrusions. The contact area with the member body is reduced. As a result, the frictional force when inserting the module main body into the groove portion can be reduced, so that it becomes easier to insert the module main body into the groove portion, and there is a problem such as the water stop member coming off due to the frictional force at the time of insertion. It can be suppressed from occurring.

  It is preferable that the water stop member has a plurality of the upper convex portions arranged substantially parallel to each other and a plurality of the lower convex portions arranged substantially parallel to each other.

  In this configuration, since a plurality of upper and lower convex portions are formed, a plurality of line contact regions or strip-shaped surface contact regions extending in the longitudinal direction are provided on the upper and lower surfaces from the front side to the rear side of the groove portion. Will be formed. Thereby, water stop performance and a buffer effect can be raised more.

  When the upper convex portion and the lower convex portion are arranged so that the positions in the insertion direction are alternated, the peripheral portion when the peripheral portion of the module body moves from the near side to the far side in the insertion direction. Since the upper and lower surfaces of the upper and lower projections are alternately in contact with the upper and lower projections, the friction during insertion compared to the case where the upper and lower projections are opposed to each other. The power can be reduced. Thereby, it becomes easier to insert the module main body into the groove portion, and it is possible to further suppress the occurrence of problems such as peeling off of the water stop member due to the frictional force at the time of insertion.

  When the protruding height of the lower convex portion is larger than the protruding height of the upper convex portion, it is possible to further enhance the cushioning effect on the lower convex portion that receives most of the weight of the module body.

  When the protruding heights of the upper and lower protrusions increase from the near side to the far side in the insertion direction, in the process of inserting the peripheral edge of the module body into the groove, the near side in the insertion direction On the side, the frictional force at the time of insertion is reduced to facilitate insertion, while on the back side in the insertion direction, the contact area between the peripheral edge of the module body and the upper and lower protrusions is increased to prevent water leakage. And can increase the buffering effect. In addition, a sufficient holding force for clamping the peripheral edge of the module main body on the back side of the groove can be secured.

  When the upper convex portion and the lower convex portion are tapered toward the front end side in the protruding direction, the contact area between the upper convex portion and the lower convex portion and the peripheral edge portion of the module body can be further reduced. it can. Thereby, since the frictional force at the time of insertion of a module main body can further be reduced, it becomes easier to insert a peripheral part into a groove part.

  It is preferable that the water-stop member further includes a back-side convex portion that protrudes from the water-stop member main body that covers the back side surface toward the opening and extends substantially parallel to the longitudinal direction.

  In this structure, since it has the back side convex part in the back | inner side of a groove part, the buffering effect with respect to the end surface of the peripheral part of a module main body can be heightened. Further, when the solar cell module main body expands due to, for example, a temperature rise, the back side convex portion is deformed to absorb the thermal expansion of the module main body.

  When the back-side convex part has a flat shape whose width in the vertical direction is larger than the protruding height, the contact area with the end face of the peripheral part can be increased, so that the buffer effect on the module body Can be further enhanced.

  The lower side surface on the near side in the insertion direction is preferably coated with a hard resin harder than the water stop member along the longitudinal direction. Usually, when inserting the peripheral edge of the module main body into the groove, the module main body is slid to the back side with the peripheral edge of the module main body in contact with the front side of the lower surface. In this configuration, it is possible to reduce the frictional force between the lower surface of the peripheral portion and the near side of the lower surface of the groove portion when sliding, so that it becomes easier to insert the peripheral portion of the module body into the groove portion.

  When the outer surface of the frame body is covered with a hard resin harder than the water stop member, the frame body can be prevented from corroding and the durability of the frame body can be improved.

  When the hard resin is coated on the outer surface of the frame main body by extrusion, productivity can be improved as compared with other methods such as coating for coating the hard resin.

  The solar cell module of the present invention includes a solar cell module main body and the solar cell module frame attached along the peripheral edge of the module main body, and the space between the peripheral edge and the inner wall of the groove. The water stop member is interposed.

  The manufacturing method of the present invention is a method for manufacturing a long frame attached along the peripheral edge of the solar cell module body, and the groove into which the peripheral edge is inserted is provided along the longitudinal direction. A first step of forming a metal frame main body, and the frame main body is moved along a longitudinal direction to pass through a through-hole of a predetermined shape provided in the mold, and is provided in the mold and passes through the through-hole. By injecting a material mainly composed of a soft resin that has been melted through a flow path that communicates with the mouth, a coating film for a water-stopping member to be interposed between the peripheral edge portion and the groove portion is formed on the inner wall of the groove portion. A second step.

  In this method, the coating for the water-stopping member can be coated on the inner wall of the groove portion by extrusion molding as described above, and can be integrated with the frame body, so that the productivity is excellent.

  Further, in the manufacturing method of the present invention, in the second step, the flow path is the first flow path, and the molten hard resin is injected through the second flow path provided in the mold and communicating with the through hole. And it is preferable to shape | mold the said hard resin film on the outer surface of the said frame main body simultaneously with the said film for water-stopping members.

  In this method, since the hard resin coating can be formed on the outer surface of the frame body simultaneously with the coating for the water-stopping member, the productivity can be further improved.

  According to the present invention, the water-stopping member is mainly composed of a soft resin, and covers the inner wall of the groove part by extrusion molding and is integrated with the frame body. Therefore, the water-stopping member is disposed at a desired position in the groove part. In addition, it is possible to prevent the water stop member from being displaced. Thereby, favorable water stop performance and a buffer effect can be obtained.

It is a bottom view which shows the solar cell module concerning one Embodiment of this invention. (A) is sectional drawing which shows the vertical frame of the frame in FIG. 1, (b) is the side view which looked at the vertical frame of the frame in FIG. 1 from the direction S side. (A) is sectional drawing of the horizontal frame of the frame in FIG. 1, (b) is the front view which looked at the horizontal frame of the frame in FIG. 1 from the direction F side. (A) is sectional drawing which shows the principal part of the frame for solar cell modules concerning 1st Embodiment of this invention, (b) is sectional drawing which shows the principal part of a frame main body. It is sectional drawing which shows the principal part of the frame for solar cell modules concerning 2nd Embodiment of this invention. It is sectional drawing which shows the principal part of the frame for solar cell modules concerning 3rd Embodiment of this invention. It is sectional drawing which shows the principal part of the frame for solar cell modules concerning 4th Embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the solar cell module 11 according to this embodiment includes a solar cell module main body 13 and a frame body 15. The solar cell module body 13 has a rectangular shape, and has a structure in which, for example, a solar cell formed of a glass layer, a sealing layer, polycrystalline silicon, or the like (not shown) is laminated and integrated. is doing.

  The frame 15 is attached along the peripheral edge of the rectangular solar cell module main body 13, and includes a pair of vertical frames 17 and a pair of horizontal frames 19. The vertical frame 17 and the horizontal frame 19 are each formed by extruding a metal material such as aluminum or an aluminum alloy. The vertical frame 17 has stepped portions 17a at both ends thereof, and the horizontal frame 19 has stepped portions 19a having shapes adapted to the stepped portions 17a at both ends thereof. These step portions 17 a and 19 a are fitted to each other in a state in which the frame body 15 is attached to the peripheral edge portion of the module main body 13 to form a corner portion having almost no step.

  2 (c) and 3 (c), the vertical frame 17 and the horizontal frame 19 have substantially the same cross-sectional shape, and cover the frame body 21 having the groove 27 and the inner wall of the groove 27. And a hard resin film 25 that covers the outer surface of the frame main body 21. The water stop member 23 is interposed between the peripheral edge portion of the module main body 13 and the groove portion 27. The module body 13 is inserted into the groove 27 in the insertion direction D indicated by the arrow in FIGS. 2 (a) and 3 (a).

  The frame main body 21 extends upward from an end portion on the outer side (insertion direction D side) of the upper surface of the rectangular portion 21a and a rectangular portion 21a having a substantially rectangular closed space that is long in the vertical direction, and then bends inward. A bent portion 21b extending inward, a flange portion 21c extending from the inner end of the upper surface of the rectangular portion 21a to the inner side, and supporting the lower surface when the module body 13 is inserted, and an inner side from the lower end of the rectangular portion 21a And a seat portion 21d for enhancing stability at the time of installation on the site, and a groove portion 27 is constituted by the upper portion of the rectangular portion 21a, the bent portion 21b and the flange portion 21c.

  Insertion grooves 35 for inserting screws are formed in two upper and lower portions along the longitudinal direction on the inner surface of the inner side plate in the rectangular portion 21a. Further, as shown in FIG. 2 (b), insertion ports 29 for inserting screws are formed in two upper and lower portions on the side surfaces of both ends of the vertical frame 17, respectively. Accordingly, when the screw is inserted into the insertion port 29 in a state where the peripheral edge portion of the module body 13 is inserted into the groove portion 27 of the frame body 15, the tip end side of the screw is also inserted into the insertion groove 35 of the horizontal frame 19. And the horizontal frame 19 can be connected. Further, the frame body 15 is fixed to the module main body 13 by inserting screws (not shown) into the insertion ports 31 and 33 provided on the bottom surfaces of the vertical frame 17 and the horizontal frame 19.

(First embodiment)
4A is a cross-sectional view showing the main part of the frame 15 (vertical frame 17 and horizontal frame 19) according to the first embodiment of the present invention, and FIG. 4B is the main part of the frame main body 21. FIG. FIG. As shown in FIGS. 4A and 4B, the groove portion 27 of the frame body 15 has an opening portion that opens to the near side in the insertion direction D in which the peripheral edge portion of the module body 13 is inserted. This opening is formed along the longitudinal direction of the frame 15. The length from the upper surface to the lower surface of the groove portion 27 is designed to be slightly larger than the thickness of the peripheral edge portion of the solar cell module body 13.

  The inner wall 37 of the groove portion 27 is positioned on the end surface of the peripheral portion located on the back side in the insertion direction D, the upper side surface 37a facing the upper surface of the peripheral portion of the module body 13, the lower side surface 37b facing the lower surface of the peripheral portion. It has an opposite back side surface 37c.

  The water-stop member 23 has a water-stop member body 23a that continuously covers the upper side surface 37a, the back side surface 37c, and the lower side surface 37b in this order, and a water-stop member body 23a that covers the upper side surface 37a from the water-stop member body 23a toward the lower side surface 37b. From the three upper convex parts 23b projecting, the three lower convex parts 23c projecting from the water stop member main body 23a covering the lower side face 37b toward the upper side face 37a, and the water stop member main body 23a covering the rear side face 37c. It has a back side convex part 23d which protrudes toward the opening side.

  The water stop member main body 23 a is provided so as to cover almost the entire inner wall 37 of the groove portion 27. Moreover, the upper side convex part 23b, the lower side convex part 23c, and the back side convex part 23d are each extended from the one end of the frame 15 to the other end substantially parallel to the longitudinal direction.

  The three upper protrusions 23b and the three lower protrusions 23c are arranged in the insertion direction D at substantially equal intervals and substantially parallel to each other. Moreover, the upper convex part 23b and the lower convex part 23c are each provided in the position which opposes an up-down direction so that one may become a pair. Each upper convex part 23b and each lower convex part 23c has a substantially triangular cross section, and has a shape that tapers toward the tip side in the protruding direction.

  The rear-side convex portion 23d has a cross-sectional shape that halves an ellipse, and has a flat shape that has a larger vertical width than the protruding height. For example, when the module main body 13 expands due to a rise in temperature, the back side convex portion 23d can absorb the thermal expansion of the module main body 13 by the deformation of the back side convex portion 23d. Therefore, the back side convex portion 23d is preferably provided in the vicinity of the center of the water stop member main body 23a covering the back side surface in the vertical direction. As shown to (a), it is good to leave the part in which the back side convex part 23d is not formed. This portion becomes a deformation allowance that the rear side convex portion 23d can deform.

  The water stop member 23 has a soft resin as a main component and is integrated with the frame body 21 by extrusion molding. When a metal such as aluminum or an alloy thereof is used as the material of the frame main body 21 as in the present embodiment, the surface of the frame main body 21 is washed to improve the adhesion between the frame main body 21 and the water stop member 23. It is preferable to perform extrusion molding after performing pretreatment and the like.

  Examples of the soft resin include thermoplastic elastomers such as styrene, olefin, ester, amide, urethane, and acrylic, and soft vinyl chloride resin.

  A hard resin film 25 that is harder than the water stop member 23 is formed on the outer surface of the frame body 21. The hard resin film 25 is coated on the outer surface of the frame body by extrusion molding. Examples of the hard resin include olefin resins such as vinyl chloride resin, polyethylene and polypropylene, styrene resins such as polystyrene, ABS resin, AES resin and ASA resin, polyester resins such as PET, PBT, PLA and polycarbonate, and acrylic resins. Etc. can be used.

  Further, the surface of the hard resin film 25 may be further coated with a sheet for improving weather resistance. As a weather-resistant sheet, for example, a sheet made of highly weather-resistant acrylic resin, ASA resin, or the like is used, or a weather-resistance improving agent is mixed into the resin exemplified as the hard resin to improve weather resistance. A sheet or the like can be used.

  Next, a method for manufacturing the frame body 15 will be described. First, the frame body 21 is formed by extruding a metal material such as aluminum.

  Next, the frame main body 21 is inserted into a through-hole of a not-shown mold along the longitudinal direction to pass through the mold. At this time, the molten soft resin and the molten hard resin are injected into the through-holes of the mold under pressure from separate injection ports. Each injection port communicates with the through-hole, and a partition is provided in the through-hole of the mold so that the soft resin and the hard resin are not mixed. The through hole of the mold is designed to have almost the same shape as the cross-sectional shape of the frame body 15 in which the frame main body 21 is covered with the water stop member 23 and the hard resin coating 25. Accordingly, the water stop member 23 is covered on the groove portion 27 of the frame main body 21, and the hard resin film 25 can be simultaneously covered on the outer surface of the frame main body 21.

  Next, the vertical frame 17 and the horizontal frame 19 are obtained by processing both ends of the obtained frame main body 21 into the shape of the stepped portion 17a of the vertical frame 17 or the stepped portion 19a of the horizontal frame 19. Next, the solar cell module 11 is obtained by attaching the vertical frame 17 and the horizontal frame 19 to the peripheral portion of the module body 13 and fixing them with screws.

  As described above, according to the first embodiment, the water stop member 23 is mainly composed of a soft resin, covers the inner wall 37 of the groove portion 27 by extrusion molding, and is integrated with the frame body 21. 27, the water stop member 23 can be disposed at a desired position, and the water stop member 23 can be prevented from being displaced. Thereby, favorable water stop performance and a buffer effect can be obtained.

  Moreover, according to 1st Embodiment, the water stop member 23 is the upper side convex part 23b extended from the water stop member main body 23a which covers the upper side surface 37a, and the lower side convex part 23c extended from the water stop member main body 23a which covers the lower side surface 37b. Therefore, when the peripheral portion of the module body 13 is inserted into the groove portion 27, the peripheral portion is in line contact with the upper convex portion 23b and the lower convex portion 23c or in surface contact with the belt in the longitudinal direction. Thus, the contact area with the water stop member main body 23a, which is a portion other than the upper convex portion 23b and the lower convex portion 23c, is reduced. Thereby, since the frictional force when inserting the module main body 13 into the groove part 27 can be made small, it becomes easy to insert the module main body 13 into the groove 27 part, and the water stop member 23 is caused by the frictional force at the time of insertion. The occurrence of problems such as peeling off can be suppressed.

  In addition, according to the first embodiment, since a plurality of the upper convex portions 23b and the lower convex portions 23c are formed, the line contact region or the belt-like surface contact region extending in the longitudinal direction extends from the front side of the groove portion 27 to the far side. A plurality of the upper and lower surfaces are formed toward the side. Thereby, water stop performance and a buffer effect can be raised more.

  Moreover, according to 1st Embodiment, since the upper side convex part 23b and the lower side convex part 23c are the shapes which taper as it goes to the front end side of a protrusion direction, the upper side convex part 23b, the lower side convex part 23c, and the module main body 13 It is possible to further reduce the contact area with the peripheral edge of the. Thereby, since the frictional force at the time of insertion of the module main body 13 can further be reduced, it becomes easy to insert a peripheral part into the groove part 27 further.

  Moreover, according to 1st Embodiment, the water stop member 23 has the back side convex part 23d which protrudes toward the opening part side from the water stop member main body 23a which covers a back side surface, and extends substantially parallel to a longitudinal direction. Therefore, the buffer effect with respect to the end surface of the peripheral part of the module main body 13 can be heightened. Moreover, when the module main body 13 expand | swells, for example by temperature rise, the back side convex part 23d can deform | transform and can absorb the thermal expansion of the module main body 13. FIG.

  Moreover, according to 1st Embodiment, since the back side convex part 23d has a flat shape where the width of an up-down direction is larger than protrusion height, a contact area with the end surface of a peripheral part is enlarged. be able to. Thereby, the buffer effect with respect to the module main body 13 can be heightened more.

  Moreover, according to 1st Embodiment, since the hard resin harder than the water stop member 23 is coat | covered along the longitudinal direction at the near side of the insertion direction D in the lower side surface 37b, it is near this lower side surface 37b. The frictional force between the lower surface of the peripheral portion and the front side of the lower side surface 37b of the groove 27 can be reduced when the peripheral portion of the module main body 13 is slid to the back side in a state where the peripheral portion is in contact with the side. This makes it easier to insert the peripheral edge of the module body 13 into the groove 27.

  Further, according to the first embodiment, the frame main body is made of aluminum or an alloy thereof, and the outer surface of the frame main body 21 is covered with the hard resin harder than the water stop member 23. It can suppress and can improve the durability of a frame. Further, since the hard resin is coated on the outer surface of the frame body 21 by extrusion molding, a process such as a coating process for coating the hard resin is not required, and productivity can be improved.

(Second Embodiment)
FIG. 5 is a cross-sectional view showing the main part of the frame 15 according to the second embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment here, and the detailed description is abbreviate | omitted.

  The frame body 15 according to the second embodiment is different from the first embodiment in that the upper convex portion 23b and the lower convex portion 23c are arranged so that the positions in the insertion direction D are alternately arranged. According to the second embodiment, when the peripheral edge of the module main body 13 moves from the near side in the insertion direction D to the deep side, the upper surface and the lower surface of the peripheral edge alternate with the upper convex portion 23b and the lower convex portion 23c, respectively. Will come into contact.

  Therefore, the frictional force at the time of insertion can be reduced as compared with the case of the first embodiment in which the upper convex portion 23b and the lower convex portion 23c are arranged to face each other. Thereby, it becomes easier to insert the module main body 13 into the groove portion 27, and it is possible to further suppress the occurrence of problems such as the water stop member 23 being peeled off due to the frictional force at the time of insertion.

(Third embodiment)
FIG. 6 is a cross-sectional view showing the main part of the frame 15 according to the third embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment here, and the detailed description is abbreviate | omitted.

  The frame 15 according to the third embodiment is different from the first embodiment in that the protrusion height of the lower protrusion 23c is larger than the protrusion height of the upper protrusion 23b. According to the third embodiment, it is possible to further enhance the buffering effect in the lower convex portion 23c that receives most of the weight of the module body 13.

(Fourth embodiment)
FIG. 7 is a cross-sectional view showing the main part of the frame 15 according to the fourth embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment here, and the detailed description is abbreviate | omitted.

  The frame 15 according to the fourth embodiment is such that the protruding heights of the upper convex portion 23b and the lower convex portion 23c increase from the near side in the insertion direction D toward the far side. Is different. According to the third embodiment, in the process of inserting the peripheral edge portion of the module body 13 into the groove portion 27, the front side of the insertion direction D reduces the frictional force at the time of insertion, while facilitating insertion. On the back side, the contact area between the peripheral edge of the module main body 13 and the upper and lower protrusions 23b and 23c can be increased to enhance the water stop performance and the buffer effect. Further, a sufficient holding force for clamping the peripheral edge of the module main body 13 on the back side of the groove 27 can be secured.

  Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made without departing from the spirit of the present invention. For example, in the above embodiment, the case where the frame body is made of metal has been described as an example. However, the frame body may be formed by molding a hard resin or the like.

  Moreover, in the said embodiment, although the case where each form shown to FIGS. 4-7 was implemented separately was mentioned as an example, it may combine two or more forms.

  In the above embodiment, the hard resin is coated on almost the entire outer surface of the frame body as an example. However, the hard resin is not coated on the entire outer surface. The hard resin harder than the water stop member may be simply covered along the longitudinal direction on the front side in the insertion direction on the side surface. As a result, when the peripheral portion of the module body is slid and inserted into the groove portion, the frictional force between the lower surface of the peripheral portion and the near side of the lower surface of the groove portion can be reduced. It becomes easier to insert into the groove.

  Further, in the above embodiment, as a method of coating the frame main body with the water-stopping member and the hard resin film, the case where extrusion is simultaneously performed on the frame main body has been described as an example. You may form in each process.

DESCRIPTION OF SYMBOLS 11 Solar cell module 13 Solar cell module main body 15 Solar cell module frame 17 Vertical frame 19 Horizontal frame 21 Frame main body 23 Water stop member 23a Water stop member main body 23b Upper convex part 23c Lower convex part 23d Deep convex part 25 Hard Resin coating 27 Groove 29, 31, 33 Insertion opening

Claims (15)

A long frame attached along the peripheral edge of the solar cell module body,
A metal frame body provided with a groove portion along the longitudinal direction into which the peripheral edge portion is inserted;
A soft resin as a main component is integrated with the frame main body by extrusion so as to cover the inner wall of the groove, and when the peripheral edge is inserted into the groove, the gap between the peripheral edge and the inner wall of the groove A frame for a solar cell module, comprising: The groove has an opening that opens along the longitudinal direction on the front side in the insertion direction for inserting the peripheral edge,
The inner wall of the groove is positioned on the upper side facing the upper surface of the peripheral edge when the peripheral edge is inserted into the groove, the lower side facing the lower surface of the peripheral edge, and the back side in the insertion direction. And a back side surface facing the end surface of the peripheral edge,
The water stop member includes a water stop member main body that covers the upper side surface, the back side surface, and the lower side surface in a film shape, and projects from the water stop member main body that covers the upper side surface toward the lower side surface and the longitudinal direction. The upper side convex part extended substantially parallel and the lower side convex part which protrudes toward the upper side surface from the water stop member main body which covers the lower side surface, and extends substantially parallel to the longitudinal direction. The frame for solar cell modules according to 1.   3. The solar cell according to claim 2, wherein the water stop member has a plurality of the upper protrusions arranged substantially parallel to each other and a plurality of the lower protrusions arranged substantially parallel to each other. Module frame.   The solar cell module frame according to claim 3, wherein the upper convex portion and the lower convex portion are arranged so that positions in the insertion direction are alternated.   The frame for a solar cell module according to claim 3, wherein a protruding height of the lower convex portion is larger than a protruding height of the upper convex portion.   4. The solar cell module frame according to claim 3, wherein projecting heights of the upper convex portion and the lower convex portion increase from the near side to the far side in the insertion direction.   The said upper side convex part and the said lower side convex part are the solar cell module frame bodies in any one of Claims 2-6 which are the shapes which taper off as it goes to the front end side of a protrusion direction.   The said water stop member further has a back side convex part which protrudes toward the said opening part side from the said water stop member main body which covers the said back side surface, and extends substantially in parallel with the said longitudinal direction. The frame for solar cell modules according to any one of 7.   The solar cell module frame according to claim 8, wherein the back-side convex portion has a flat shape having a width in the vertical direction larger than a protruding height.   The frame for a solar cell module according to any one of claims 2 to 9, wherein the lower side surface on the near side in the insertion direction is coated with a hard resin harder than the water-stopping member along the longitudinal direction. body.   The outer surface of the said frame main body is the solar cell module frame body in any one of Claims 2-9 coat | covered with hard resin harder than the said water stop member.   The frame for a solar cell module according to claim 10 or 11, wherein the hard resin is coated on an outer surface of the frame main body by extrusion molding.   A solar cell module main body and the solar cell module frame body according to any one of claims 1 to 12 attached along the peripheral edge of the module main body, and between the peripheral edge and the inner wall of the groove. A solar cell module in which the water stop member is interposed. A method of manufacturing a long frame attached along the peripheral edge of a solar cell module body,
A first step of forming a metal frame body in which the groove portion into which the peripheral edge portion is inserted is provided along the longitudinal direction;
The frame main body is moved along the longitudinal direction to pass through a predetermined-shaped through hole provided in the mold, and a soft resin melted through a flow path provided in the mold and communicating with the through hole is mainly used. A solar cell module frame comprising: a second step of forming, on the inner wall of the groove portion, a film for a water-stopping member to be interposed between the peripheral edge portion and the groove portion by injecting a material as a component Body manufacturing method. In the second step, the flow path is a first flow path, and a molten hard resin is injected through a second flow path that is provided in the mold and communicates with the through hole, and is applied to the outer surface of the frame body. The manufacturing method of the frame for solar cell modules of Claim 14 which shape | molds the said hard resin film simultaneously with the said film for water-stopping members.

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