JP2013120772A - Frame for solar cell module, solar cell module, and manufacturing method for solar cell module frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a frame for solar cell module having such a structure that drainage is possible without degrading the strength of the frame.SOLUTION: A frame 1 for solar cell module includes a side support 20 corresponding to each side of a solar cell module body 10, and a corner coupling 30 for coupling the ends of adjoining side supports 20. The end of the side support 20 is processed obliquely so that the processed surfaces of the adjoining side supports 20 are abutted, and a notch 20a is formed along the surface thus abutted.

Description

  The present invention relates to a frame for a solar cell module including a cut-out portion, a solar cell module including a frame for a solar cell module, and a method for manufacturing a frame for a solar cell module.

  In recent years, awareness of environmental protection has increased, and solar power generation has been widely used. Therefore, solar cell modules are installed in various places. Solar cell modules are often installed outdoors and are exposed to rainfall and the like. Here, if water containing dust or other deposits remains on the light receiving surface of the solar cell module, the deposits remain as dirt on the light receiving surface after the water evaporates. The problem is that the power generation efficiency decreases due to the decrease, and the appearance is impaired.

  Therefore, it has been studied to provide a frame on the solar cell module frame and drain water from the frame (see, for example, Patent Document 1). In the photoelectric conversion device described in Patent Document 1, the module frame that supports the photoelectric conversion panel includes a frame front surface portion, a frame side surface portion, and a frame front surface portion that are provided so as to surround the surface, side surface, and back surface of the edge region of the photoelectric conversion panel, respectively. And a panel frame portion constituted by a frame rear surface portion, and a notch region is provided from the end portion of the frame front surface portion to the frame side surface portion.

  By the way, by providing a cutout region in the frame body, the mechanical strength is lowered, and there is a possibility that the load bearing performance against snow, strong winds, etc. may be impaired.

JP 2011-149219 A

  As described above, the module frame in the photoelectric conversion device described in Patent Document 1 has a problem in that the mechanical strength of the module frame decreases because the front surface of the frame is divided by the cutout region.

  The present invention has been made in order to solve the above-described problem, and can provide a structure for a solar cell module that can be drained without lowering the strength of the frame, and a method for manufacturing the frame for a solar cell module. The purpose is to provide.

  A frame for a solar cell module according to the present invention is a frame for a solar cell module installed at the periphery of a solar cell module main body, and is adjacent to a side support portion corresponding to each side of the solar cell module main body. A corner connecting portion that connects the end portions of the side support portions, the end portions of the side support portions are processed obliquely, and the processed surfaces of the adjacent side support portions are abutted against each other And a cut-out portion is formed along the abutted surfaces.

  According to this structure, it can be set as the structure which can drain, without reducing the intensity | strength of edge | side support part itself by providing a cutting part in the edge part connected by the corner | angular connection part. Moreover, since the cut portion is provided obliquely with respect to the sides of the solar cell module, the direction in which the solar cell module is installed can be easily changed. That is, if the solar cell module is installed with one of the two sides sandwiching the cut portion facing downward, water accumulated on the light receiving surface by the cut portion can be discharged.

  The frame for a solar cell module according to the present invention is characterized in that the cut portion is formed on a plurality of the side support portions.

  According to this configuration, by providing a plurality of cutting portions, water can be discharged more efficiently, and the degree of design freedom can be improved.

  In the frame for a solar cell module according to the present invention, the cut portion is formed at both ends of the side support portion.

  According to this structure, water can be more efficiently discharged by providing the cut-out portions at both ends. That is, drainage can be performed from both staking parts by installing the side support part on which the staking parts are formed facing downward.

  In the frame for a solar cell module according to the present invention, the side support portion includes a light receiving surface side frame portion and a back surface side frame portion that sandwich the periphery of the solar cell module main body, and the light receiving surface side frame portion. It is set as the structure provided with the side part frame body part which connects an edge part and the edge part of the said back surface side frame body part, The said cutting part is formed by cutting the said light-receiving surface side frame part. And

  According to this configuration, the light receiving surface side frame body portion can be cut to reliably drain water from the light receiving surface. Moreover, since it becomes a structure which a back surface side frame body part and a side surface side frame body part contact | connect the adjacent edge | side support part, it can latch so that a edge | side support part may not move.

  In the frame for a solar cell module according to the present invention, the cut portion is formed by cutting the light receiving surface side frame portion, the back surface side frame portion, and the side surface side frame portion. To do.

  According to this structure, it can drain reliably from a light-receiving surface. Further, when chamfering, the workability can be improved by cutting the continuous light receiving surface side frame portion, back surface side frame portion, and side surface side frame portion together. That is, by considering the length of the cut portion, the side support portion having the cut portion can be formed by forming the side support portion short in advance.

  In the frame for a solar cell module according to the present invention, the cut portion has a width in a direction orthogonal to the butted surfaces of 4 mm or more and 10 mm or less.

  According to this configuration, by setting the width of the cut portion to 4 mm or more, it is possible to prevent water from remaining in the cut portion due to the tension of water. In addition, the solar cell module main body may be cracked by scratching the end, but by reducing the width of the cut portion to 10 mm or less, the possibility of contacting a large object exposed end is reduced. Can do.

  A solar cell module according to the present invention includes the solar cell module frame according to the present invention and a solar cell module main body.

  According to this configuration, it is possible to provide a solar cell module that has sufficient strength and drainage and can easily change the installation direction.

  The manufacturing method of the frame for a solar cell module according to the present invention includes the side support portion corresponding to each side of the solar cell module main body and the corner connection portion connecting the end portions of the adjacent side support portions. A method for manufacturing a frame for a solar cell module that supports a periphery of a battery module body, wherein the side support portion includes a light receiving surface side frame body portion and a back surface side frame body portion that sandwich the periphery of the solar cell module body. , A step of forming a side surface side frame body portion for connecting an end portion of the light receiving surface side frame body portion and an end portion of the back surface side frame body portion, and a step of processing the end portion of the side support portion obliquely And a step of cutting the light receiving surface side frame portion to form a cut portion.

  According to this structure, the frame for solar cell modules provided with a cutting part can be manufactured. Further, by performing the process of obliquely and the step of forming the cut portion, the cut portion can be formed in various shapes. For example, the cut portion can be formed so that the width on the side frame portion side is increased by inclining the cut portion with respect to the processed surface.

  The manufacturing method of the frame for a solar cell module according to the present invention includes the side support portion corresponding to each side of the solar cell module main body and the corner connection portion connecting the end portions of the adjacent side support portions. A method for manufacturing a frame for a solar cell module that supports a periphery of a battery module body, wherein the side support portion includes a light receiving surface side frame body portion and a back surface side frame body portion that sandwich the periphery of the solar cell module body. , A step of forming a side surface side frame body portion for connecting an end portion of the light receiving surface side frame body portion and an end portion of the back surface side frame body portion, and a step of processing the end portion of the side support portion obliquely And any one of the side support portions is processed to be shorter than a corresponding side of the solar cell module body.

  According to this configuration, when processing obliquely, the continuous light-receiving surface side frame portion, back surface side frame portion, and side surface side frame portion are cut together to form a cut portion, thereby simplifying the process. it can. That is, by forming the side support portion shorter than the corresponding side in advance, a gap formed between the adjacent side support portions becomes a cut portion, and a process for forming the cut portion can be omitted.

  According to the present invention, it is possible to provide a structure capable of draining without lowering the strength of the side support portion itself by providing the cut portion at the end portion connected by the corner connection portion.

It is a top view of the solar cell module which concerns on Embodiment 1 of this invention. It is sectional drawing in the arrow AA of FIG. 1A. It is a top view of the modification 1 of the frame for solar cell modules which concerns on Embodiment 1 of this invention. It is a top view of the modification 2 of the frame for solar cell modules which concerns on Embodiment 1 of this invention. It is a top view of the modification 3 of the frame for solar cell modules which concerns on Embodiment 1 of this invention. It is a top view of the solar cell module which concerns on Embodiment 2 of this invention. It is sectional drawing in the arrow BB of FIG. 5A. It is the top view to which the principal part of the solar cell module which concerns on Embodiment 3 of this invention was expanded. It is sectional drawing in the arrow CC of FIG. 6A. It is the top view to which the principal part of the modification of the frame for solar cell modules which concerns on Embodiment 3 of this invention was expanded. It is sectional drawing in the arrow DD of FIG. 7A. It is sectional drawing in the arrow EE of FIG. 7A.

<Embodiment 1>
Hereinafter, the solar cell module frame and the solar cell module according to Embodiment 1 of the present invention will be described with reference to the drawings.

  1A is a plan view of the solar cell module according to Embodiment 1 of the present invention, and FIG. 1B is a cross-sectional view taken along arrows AA in FIG. 1A.

  The solar cell module frame 1 according to Embodiment 1 of the present invention connects a side support portion 20 corresponding to each side of a rectangular solar cell module body 10 and ends of adjacent side support portions 20. Corner connecting portion 30. The edge part of the side support part 20 is processed diagonally, it is set as the structure which face | matches the processed surfaces of the adjacent side support part 20, and the cutting | disconnection part 20a is formed along the faced face. . In addition, the side support part 20 which supports the long side of the solar cell module main body 10 is called the long side support part 21 and the long side support part 22 below, and the side which supports the short side of the solar cell module main body 10 for description. The support part 20 may be referred to as a short side support part 23 and a short side support part 24. In plan view, a direction parallel to the long side of the solar cell module body 10 is referred to as a lateral direction X, and a direction parallel to the short side of the solar cell module body 10 is referred to as a vertical direction Y. A direction orthogonal to the light receiving surface Fr is referred to as a height direction Z.

  According to this structure, it can be set as the structure which can drain, without reducing the intensity | strength of edge | side support part 20 itself by providing the edge part 20a in the edge part connected with the corner | angular connection part 30. FIG. Further, since the cut portions are provided obliquely with respect to the sides of the solar cell module 100, the direction in which the solar cell module 100 is installed can be easily changed. That is, if the solar cell module 100 is installed with one of the two sides sandwiching the cut portion 20a facing downward, the water accumulated on the light receiving surface Fr by the cut portion 20a can be discharged.

  The solar cell module 100 includes a solar cell module frame 1 (a solar cell module frame 2 and a solar cell module frame 3 described later) and a solar cell module body 10. According to this configuration, it is possible to provide the solar cell module 100 that has sufficient strength and drainage and can easily change the installation direction.

  As shown in FIG. 1B, the solar cell module body 10 has a light receiving surface side sealing layer 10b, a solar cell 10c, a light receiving surface glass 10a on the light receiving surface Fr side (which is the lower side in the drawing), The back side sealing layer 10d and the back side sealing film 10e are laminated in this order, and are integrally laminated.

  The light-receiving surface glass 10a is composed of, for example, a rectangular white plate glass substrate.

  The solar battery cell 10c is formed of polycrystalline silicon, and receives light transmitted through the light-receiving surface glass 10a to generate power. Note that the solar battery cell 10c may be formed of, for example, single crystal silicon, amorphous silicon, a compound semiconductor solar battery, a dye-sensitized solar battery, or the like. The compound semiconductor solar cell is made of, for example, GaAs (gallium arsenide), CIS, CIGS (chalkobilite compound), CdTe (cadmium telluride), or the like. The solar battery cell 10c may be a thin film solar battery directly formed on the back surface of the light receiving surface glass 10a using an existing method. When the solar battery cell 10c is a thin film solar battery, the light receiving surface side sealing is performed. It is not necessary to provide the stop layer 10b.

  The light receiving surface side sealing layer 10b and the back surface side sealing layer 10d are formed of a sealing resin sheet using, for example, an ethylene-vinyl acetate copolymer (EVA resin). By heating the sealing resin sheet in a pressurized state, the light-receiving surface side sealing layer 10b and the back surface-side sealing layer 10d are bonded to the light-receiving surface glass 10a and the back-side sealing film 10e.

  The side support portion 20 includes a light receiving surface side frame portion 20b and a back surface side frame portion 20d that sandwich the periphery of the solar cell module body 10, and an end portion of the light receiving surface side frame portion 20b and the back surface side frame portion 20d. It is set as the structure provided with the side frame part 20c which connects an edge part. The cut portion 20a is formed by cutting the light receiving surface side frame portion 20b. According to this configuration, the light receiving surface side frame 20b can be cut to reliably drain water from the light receiving surface Fr. Moreover, since it becomes a structure where the back surface side frame part 20d and the side surface side frame part 20c are in contact with the adjacent side support part 20, the side support part 20 can be locked so as not to move. In the present embodiment, the side support portion 20 is made of anodized aluminum. In addition, although the manufacturing method of the frame 1 for solar cell modules is mentioned later, the edge part of the edge | side support part 20 is processed diagonally using the process cut | disconnected by pressing, for example.

  As described above, the side support portion 20 has a U-shaped groove formed by the light receiving surface side frame portion 20b, the side surface side frame portion 20c, and the back side frame portion 20d. The peripheral edge of the solar cell module body 10 is fitted.

  In the first embodiment of the present invention, the cut portion 20a is provided along the face where the long side support portion 21 and the short side support portion 23 are abutted. The cut portion 20 a is provided on both the light receiving surface side frame portion 20 b of the long side support portion 21 and the light receiving surface side frame portion 20 b of the short side support portion 23. Specifically, the end portion of the side support portion 20 is processed with an inclination of 45 degrees with respect to the corresponding side in plan view. In addition, the edge part of the side support part 20 inclines in the direction which goes to the center from the corner | angular of the solar cell module main body 10. FIG. Further, the cut portion 20a is formed in a straight line parallel to the abutted surface. That is, the solar cell module body 10 is formed with a uniform width from the center to the corner. In the present embodiment, the cut portion 20a has a width W of 6 mm in a direction orthogonal to the butted surfaces. Here, the cut-off portion 20a is a portion obtained by combining the cut-out region of the long-side support portion 21 and the cut-out region of the short-side support portion 23, and either one is greatly cut off. May be. For example, the short side support part 23 may be cut into small pieces in conjunction with cutting the long side support part 21 into large pieces.

  The present invention is not limited to this, and it is desirable that the width W in the direction perpendicular to the abutted surfaces of the cut portion 20a is 4 mm or more and 10 mm or less. According to this configuration, by setting the width W of the cut portion 20a to 4 mm or more, it is possible to prevent water from remaining in the cut portion 20a due to water tension. Moreover, although the solar cell module main body 10 may be cracked by scratching the end portion, by setting the width W of the cut portion 20a to 10 mm or less, there is a possibility that a large object may come into contact with the exposed end portion. Can be reduced.

  The side support portion 20 further includes a frame fixing portion 20e into which the corner connecting portion 30 is inserted. The frame fixing portion 20e is formed integrally with the back surface side frame portion 20d, and has a quadrangular prism shape with a hollow inside. Further, the frame body fixing portion 20e includes a frame body bottom surface portion 20f that is integrally extended from the end portion in the height direction Z (the lower side in FIG. 1B) toward the center of the solar cell module 100. The frame bottom surface portion 20f is parallel to the light receiving surface Fr.

  The corner connecting portions 30 are respectively arranged at the corners of the solar cell module 100, and are formed in an L shape in plan view including a portion protruding in the horizontal direction X from the corner and a portion protruding in the vertical direction Y. Yes. That is, the part which protruded in each direction is inserted in the frame fixing | fixed part 20e. Moreover, the corner | angular connection part 30 is made into the shape substantially the same as the space inside the frame fixing | fixed part 20e in a cross section, the edge | side support parts 20 which adjoin by the corner | angular connection part 30 are fixed, and the solar cell module 100. The intensity at the corners is complemented.

  The solar cell module main body 10 is attached with the side support portion 20 in a state where the periphery is sealed with the sealing member 40. In the present embodiment, the solar cell module body 10 is wrapped around the side support portion 20 in a state where a tape-shaped elastomer resin having a thickness of 0.6 mm is wound around the periphery of the solar cell module body 10 as the sealing member 40 in advance. It is inserted. When the side support portions 20 are fitted, the adjacent side support portions 20 are connected to each other by the corner connection portion 30. The sealing member 40 is adjusted so as not to protrude from the side support portion 20. Further, the sealing member 40 is not wound around the portion corresponding to the cut portion 20a. By setting it as the structure where the sealing member 40 is not exposed, it can prevent that the sealing member 40 is exposed to sunlight and deteriorates.

  In addition, after winding the sealing member 40 around all the periphery of the solar cell module main body 10, you may remove the sealing member 40 from the part corresponding to the cutting part 20a. By providing the sealing member 40, it can be set as the buffer material which relieve | moderates the load added to the solar cell module main body 10, and the water-tightness of the solar cell module main body 10 can be improved.

  As a material of the sealing member 40, for example, a sheet-like silicone resin foam may be used. Alternatively, a thermosetting silicone resin may be applied and hardened by heating in an oven or the like.

  Next, Modification 1 to Modification 3 of the solar cell module frame according to Embodiment 1 of the present invention will be described.

  FIG. 2 is a plan view of Modification 1 of the solar cell module frame according to Embodiment 1 of the present invention. Note that the cross-sectional view taken along the arrow A1-A1 in FIG. 2 is the same as the cross-sectional view taken along the arrow AA in FIG.

  In the first modification, the cut portions 20 a are provided at the diagonals of the solar cell module 100. Specifically, a cut portion 20a is provided along the face where the long side support part 21 and the short side support part 23 are abutted, and the face where the long side support part 22 and the short side support part 24 are abutted is provided. A cut-off portion 20a is provided along. That is, the same part is cut off in the long side support part 21 and the long side support part 22, and the same part is cut off in the short side support part 23 and the short side support part 24. In addition, since the cut portions 20a are provided at the diagonals of the solar cell module 100, water can be discharged regardless of which of the side support portions 20 is set downward.

  The cut portion 20a is formed in a straight line parallel to the butted surfaces, and the width W in the direction orthogonal to the butted surfaces is 6 mm.

  As described above, the cut portions 20 a are formed on the plurality of side support portions 20. According to this configuration, by providing a plurality of cutting portions 20a, water can be discharged more efficiently, and the degree of freedom in design can be improved. Moreover, the long side support part 21 and the long side support part 22 corresponding to the long side of the solar cell module body 10 have the same structure, and the short side support part 23 and the short side support part 24 corresponding to the short side have the same structure. Thereby, the mistake of the member at the time of an assembly operation can be prevented.

  In FIG. 2, the cut portions 20 a are provided at the diagonals of the solar cell module 100, but the present invention is not limited thereto. For example, the side support portions 20 are provided by providing the cut portions 20 a at all corners of the solar cell module 100. Can be made the same structure, and a common member can be achieved.

  FIG. 3 is a plan view of Modification Example 2 of the solar cell module frame according to Embodiment 1 of the present invention. Note that the cross-sectional view taken along arrows A2-A2 in FIG. 3 is the same as the cross-sectional view taken along arrows A-A in FIG.

  In the modified example 2, the cut portions 20a are provided at adjacent corners of the solar cell module 100, respectively. Specifically, a cut portion 20a is provided along the abutted surface of the long side support portion 21 and the short side support portion 23, and the abutted surface of the long side support portion 21 and the short side support portion 24 is provided. A cut-off portion 20a is provided along. Moreover, in the modification 2, only the light-receiving surface side frame part 20b of the long side support part 21 is cut off, and the short side support part 23 and the short side support part 24 are not cut off. In this way, the cut portion 20a may be formed by cutting only one side support portion 20 (long side support portion 21) along the abutted surfaces. That is, the other side support portion 20 (short side support portion 23 and short side support portion 24) is not provided with the cutting portion 20a, and only one side support portion 20 (long side support portion 21) is cut. By doing so, the process of forming the cut part 20a can be reduced and productivity can be improved.

  The cut portion 20a is formed in a straight line parallel to the butted surfaces, and the width W in the direction orthogonal to the butted surfaces is 6 mm.

  As described above, the staking portion 20a is formed at both ends of the long side support portion 21 (side support portion 20). According to this configuration, water can be discharged more efficiently by providing the cut portions 20a at both ends. That is, by installing the long side support part 21 (side support part 20) on which the cut part 20a is formed facing downward, the water can be drained from both of the cut parts 20a.

  FIG. 4 is a plan view of Modification 3 of the solar cell module frame according to Embodiment 1 of the present invention. Note that the cross-sectional view taken along arrows A3-A3 in FIG. 4 is the same as the cross-sectional view taken along arrows AA in FIG.

  In the third modification, the cut portion 20a is formed so as to increase in width from the center of the solar cell module 100 toward the corner. In the third modification, a cutting portion 20a is provided along the abutted surface of the long side support portion 21 and the short side support portion 23, and the light receiving surface side frame body portion 20b and the short side support portion of the long side support portion 21 are provided. 23 of the light receiving surface side frame body portion 20b. Moreover, the long side support part 21 and the short side support part 23 are inclined and cut | disconnected with respect to the face | butt | matching. In this case, the long side support part 21 and the short side support part 23 may be inclined and cut at the same angle, but may be inclined and cut at different angles.

<Embodiment 2>
5A is a plan view of the solar cell module according to Embodiment 2 of the present invention, and FIG. 5B is a cross-sectional view taken along arrows BB in FIG. 5A. Note that components having substantially the same functions and structures as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  The solar cell module frame body 2 according to Embodiment 2 of the present invention connects the side support portions 20 corresponding to the respective sides of the rectangular solar cell module body 10 and the end portions of the adjacent side support portions 20. And a corner connecting portion 30. The edge part of the side support part 20 is processed diagonally, and it is set as the structure which face | matches the adjacent side support part 20 and the processed surfaces, These structures are the same as Embodiment 1. FIG.

  In the above-described configuration, the solar cell module frame 2 is provided with the cut portions 20a along the abutted surfaces of the long side support portion 21 and the short side support portion 23, and the long side support portion 21 and the short side support portion 21 are short. The cut portion 20a of the side support portion 23 cuts the entirety of the light receiving surface side frame portion 20b, the side surface side frame portion 20c, the back side frame portion 20d, the frame fixing portion 20e, and the frame bottom portion 20f. Is formed by. As a result, the second embodiment is different from the first embodiment in that any one of the side support portions 20 is shorter than the corresponding side of the solar cell module body 10.

  As described above, the cut portion 20a is formed by cutting the light receiving surface side frame portion 20b, the back surface side frame portion 20d, and the side surface side frame portion 20c. According to this configuration, water can be reliably drained from the light receiving surface Fr. Moreover, when processing diagonally, workability | operativity can be improved by cutting together the continuous light-receiving surface side frame part 20b, the back surface side frame part 20d, and the side surface side frame part 20c. That is, in consideration of the length of the cut portion 20a, the side support portion 20 including the cut portion 20a can be obtained by forming the side support portion 20 in advance short.

  The cut portion 20a is formed in a straight line parallel to the abutted surface, and a width W in a direction orthogonal to the abutted surface can be appropriately selected, and is set to 6 mm, for example.

  In FIG. 5A, the number of the corners 20a provided is one, but the present invention is not limited to this, and the corners 20a may be provided at a plurality of corners.

<Embodiment 3>
6A is an enlarged plan view of the main part of the solar cell module according to Embodiment 3 of the present invention, and FIG. 6B is a cross-sectional view taken along arrows CC in FIG. 6A. Note that components having substantially the same functions and structures as those of the first and second embodiments are denoted by the same reference numerals, and description thereof is omitted.

  The solar cell module frame 3 according to Embodiment 3 of the present invention is different from that of Embodiment 1 in that an end face protection member 50 is attached to the cut portion 20a.

  The end face protection member 50 is made of anodized aluminum, and is disposed along the cut end face of the light receiving face side frame 20b and the sealing member 40. The long side support 21 and the short side support 23 Each is attached with an adhesive (for example, silicone resin). Note that the end surface protection member 50 may be formed of a fluororesin, or may be attached to the side support portion 20 with a screw or the like. By providing the end face protection member 50, it is possible to prevent water from entering from the exposed end face of the sealing member 40 and deteriorating the characteristics of the solar battery cell 10c. The end face protection member 50 is made of the same material as the side support part 20 by being formed of anodized aluminum, and can prevent corrosion due to a potential difference. Moreover, by using a fluororesin as a material of the end surface protection member 50, it can process easily and can ensure favorable weather resistance.

  The cut portion 20a is formed in a straight line parallel to the abutted surface, and a width W in a direction orthogonal to the abutted surface can be appropriately selected, and is set to 6 mm, for example.

  In addition, you may attach the end surface protection member 50 to the frame 2 for solar cell modules mentioned above.

  Next, a modified example of the solar cell module frame according to Embodiment 3 of the present invention will be described.

  FIG. 7A is an enlarged plan view of a main part of a modification of the frame for a solar cell module according to Embodiment 3 of the present invention, and FIG. 7B is a cross-sectional view taken along arrows DD in FIG. 7A. FIG. 7C is a cross-sectional view taken along arrows EE in FIG. 7A.

  In the modified example, the light-receiving surface protection unit 51 that protects the light-receiving surface Fr of the exposed light-receiving surface glass 10a is further provided in the cut portion 20a. The light receiving surface protection part 51 is formed integrally with the end face protection member 50 attached to the long side support part 21 and the end face protection member 50 attached to the short side support part 23. By providing the light receiving surface protection part 51, it is possible to prevent the light receiving surface glass 10a from being damaged by providing a structure in which the corners of the light receiving surface glass 10a are not exposed.

  In addition, the light receiving surface protection part 51 is provided with an inclined part 51 a at the end on the center side of the solar cell module 100. The inclined portion 51a is inclined so as to approach the light receiving surface Fr from the corner of the solar cell module 100 toward the center. That is, the tip of the inclined portion 51a is formed thin. By reducing the level difference between the light receiving surface protection part 51 and the light receiving surface Fr, a structure that does not hinder drainage from the light receiving surface Fr can be obtained.

  Next, the manufacturing method of the frame for solar cell modules according to Embodiment 1 of the present invention and Embodiment 3 of the present invention will be described.

  First, the side support portion 20 is formed using an existing method such as extrusion. Here, the side support portions 20 are formed longer than the corresponding sides of the solar cell module body 10. That is, the long side support part 21, the long side support part 22, the short side support part 23, and the short side support part 24 are connected to form a straight line.

  Next, alumite treatment or painting is applied to the side support portion 20. In addition, you may perform anodizing and coating after passing through another process.

  And after cut | disconnecting the connected edge | side support part 20 to the length according to a corresponding edge | side, an edge part is processed diagonally using the existing methods, such as press work. In addition, when cutting to the length according to a corresponding side, you may cut | disconnect the edge part of the side support part 20 diagonally.

  Thereafter, the light receiving surface side frame portion 20b is cut to form the cut portion 20a. In addition, what should just be cut | disconnected among the side support parts 20 should just be selected suitably according to the angle | corner which provides the cut part 20a. Moreover, about the alumite process and coating, by forming after the notch part 20a, the end surface of the notch part 20a can be protected and a weather resistance can be improved.

  That is, in the manufacturing method of the solar cell module frame 1 and the solar cell module frame 3, the light receiving surface side frame body portion 20 b and the back surface side frame that sandwich the periphery of the solar cell module body 10 in the side support portion 20. Forming the body part 20d, the side surface side frame part 20c that connects the end part of the light receiving surface side frame part 20b and the end part of the back side frame part 20d, and the end part of the side support part 20 It includes a step of processing obliquely and a step of cutting the light receiving surface side frame portion 20b to form the cut portion 20a.

  According to this structure, the frame 1 for solar cell modules provided with the cutting part 20a can be manufactured. Further, by performing the process of obliquely and the process of forming the cut portion 20a separately, the cut portion 20a can be formed in various shapes. For example, the cut portion 20a can be formed such that the cut portion 20a is inclined with respect to the processed surface so that the width on the side frame portion 20c side is increased.

  About the manufacturing method of the frame 2 for solar cell modules which concerns on Embodiment 2 of this invention With respect to the manufacturing method of the frame for solar cell modules which concerns on Embodiment 1 of this invention and Embodiment 3 of this invention Thus, the step of forming the cut portion 20a is omitted.

  Specifically, in the step of cutting the connected side support portions 20, the side support portions 20 provided with the cut portions 20 a are cut shorter than the corresponding sides of the solar cell module body 10.

  That is, in the method for manufacturing the solar cell module frame 2, the light receiving surface side frame body portion 20 b and the back surface side frame body portion 20 d that sandwich the periphery of the solar cell module body 10 in the side support portion 20, and the light receiving surface side. Including a step of forming a side surface side frame body portion 20c that connects an end portion of the frame body portion 20b and an end portion of the back surface side frame body portion 20d, and a step of processing the end portion of the side support portion 20 obliquely. Any one of the side support portions 20 is processed to be shorter than the corresponding side of the solar cell module body 10.

  According to this configuration, when processing obliquely, the continuous light-receiving surface side frame body portion 20b, the back surface side frame body portion 20d, and the side surface side frame body portion 20c are cut together to form the cut portion 20a. The process can be simplified. That is, by forming the side support portions 20 shorter than the corresponding sides in advance, a gap formed between the adjacent side support portions 20 becomes the cut portions 20a, and a process for forming the cut portions 20a can be omitted. .

  It should be noted that the embodiment disclosed herein is illustrative in all respects and does not serve as a basis for limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiment, but is defined based on the description of the scope of claims. In addition, meanings equivalent to the claims and all modifications within the scope are included.

1, 2, 3 Frame for solar cell module 10 Solar cell module body 20 Side support portion 20a Cutting portion 20b Light receiving surface side frame portion 20c Side surface side frame portion 20d Back side frame portion 30 Corner connecting portion 100 Solar cell module Fr light receiving surface Re back surface W width

Claims (9)

A solar cell module frame installed at the periphery of the solar cell module body,
Side support portions corresponding to the respective sides of the solar cell module body,
A corner connecting portion that connects the ends of the adjacent side support portions;
The edge part of the said side support part is processed diagonally, it is set as the structure which face | matches the processed surfaces of the adjacent said side support part, and the cut | notch part is formed along the said face | abutted face. A frame for a solar cell module. It is a frame for solar cell modules according to claim 1,
The frame for a solar cell module, wherein the cut portion is formed on a plurality of the side support portions. It is a frame for solar cell modules according to claim 1 or 2,
The frame for a solar cell module, wherein the cut portion is formed at both end portions of the side support portion. It is a frame for solar cell modules according to any one of claims 1 to 3,
The side support portions include a light receiving surface side frame body portion and a back surface side frame body portion that sandwich a periphery of the solar cell module body, an end portion of the light receiving surface side frame body portion, and an end portion of the back surface side frame body portion. And a side-side frame body portion that connects the
The frame for a solar cell module, wherein the cut portion is formed by cutting the light receiving surface side frame portion. It is a frame for solar cell modules according to claim 4,
The frame portion for a solar cell module, wherein the cut portion is formed by cutting the light receiving surface side frame portion, the back surface side frame portion, and the side surface side frame portion. It is a frame for solar cell modules according to any one of claims 1 to 5,
The frame for a solar cell module, wherein the cut portion has a width of 4 mm or more and 10 mm or less in a direction orthogonal to the butted surfaces.   A solar cell module provided with the frame for solar cell modules as described in any one of Claim 1- Claim 6, and a solar cell module main body. A frame for a solar cell module that supports a peripheral edge of the solar cell module main body by a side support portion corresponding to each side of the solar cell module main body and a corner connecting portion that connects ends of the adjacent side support portions. A manufacturing method comprising:
In the side support portion, a light receiving surface side frame body portion and a back surface side frame body portion that sandwich a periphery of the solar cell module body, an end portion of the light receiving surface side frame body portion, and an end portion of the back surface side frame body portion. Forming a side-side frame body portion connecting the
Processing the end of the side support portion diagonally;
And a step of cutting the light receiving surface side frame portion to form a cut portion. A method for manufacturing a frame for a solar cell module. A frame for a solar cell module that supports a peripheral edge of the solar cell module main body by a side support portion corresponding to each side of the solar cell module main body and a corner connecting portion that connects ends of the adjacent side support portions. A manufacturing method comprising:
In the side support portion, a light receiving surface side frame body portion and a back surface side frame body portion that sandwich a periphery of the solar cell module body, an end portion of the light receiving surface side frame body portion, and an end portion of the back surface side frame body portion. Forming a side-side frame body portion connecting the
Processing the end of the side support portion diagonally,
Either of the said side support parts is processed so that it may become shorter than the corresponding | compatible side of the said solar cell module main body. The manufacturing method of the frame for solar cell modules characterized by the above-mentioned.

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