JP6363395B2 - Packing material for solar cell module - Google Patents

Description

  The present invention relates to a solar cell module packing material for stacking and packing solar cell modules with frames.

  With the recent increase in environmental protection, solar power generation systems with a low environmental load are attracting attention. The solar power generation system is a combination of a solar cell array in which a large number of solar cell modules are fixed to a gantry and devices such as a power conditioner and a connection box. Solar cell modules used in such a photovoltaic power generation system are packed and transported to the construction site with cardboard. Therefore, many cardboards became garbage after unpacking the solar cell module, and the consumption of paper resources increased.

  Accordingly, a packaging material made of a synthetic resin that can support and stack each corner of the solar cell module and can be repeatedly used during transportation has been proposed.

JP 2006-32978 A

  The packaging material disclosed in the above-mentioned Patent Document 1 has a plurality of ridges provided on the lower side of the load receiving support deformed material of the packaging material located on the upper side between the packaging materials stacked one above the other. It is the structure fixed by inserting the several tenon provided in the upper part of the load receiving support support deformed material of the packaging material located. In such a packing material, when horizontal vibration is applied when the solar cell module is transported, the solar cell module moves in the horizontal direction, and a strong load is applied in the direction of opening the tongue, and the packing material is damaged. There is a fear. In particular, such damage is likely to cause damage to the packing material because the load increases when many solar cell modules are stacked.

  One object of the present invention is to provide a packaging material that is less likely to be damaged by a load acting in the horizontal direction even when a large number of solar cell modules are stacked.

One aspect of the solar cell module packaging is a solar cell module packaging material provided at a corner of the solar cell module in which a frame provided along each side of the rectangular solar cell panel is arranged. A pair of side walls along the outer side of the frame on two sides located at the corners of the solar cell module, and a lower part of the solar cell module provided between the pair of side walls. A first projecting portion extending downward from the supporting portion, and an elastic tension extending from at least one of the pair of side wall portions toward the upper side of the solar cell module. And when extending a plurality of the solar cell modules horizontally in the vertical direction, the support portion supports the first solar cell module located on the upper side and faces downward from the support portion. The first projecting portion that extends is located inside the frame of the second solar cell module located on the lower side, and the overhanging portion is provided at a position that does not overlap the support portion when seen in a plan view. The support part and the overhanging part use the packing material provided at the corner of the first solar cell module as the first packing material, and the packing material provided at the corner of the second solar cell module. When the second packing material is used, the support portion of the first packing material and the protruding portion of the second packing material are provided at positions where they do not contact each other.

According to the packaging material of the solar cell module according to the present embodiment, the packaging materials adjacent in the vertical direction transmit the load in the vertical direction via the side wall portion, and the solar cell module has the side wall portion and the first protrusion portion. By restricting the horizontal movement of the sheet, the resistance (load resistance) to the load acting on the packing material can be enhanced. As a result, it can be set as the packing material which is hard to produce a damage by the load which acts on an up-down direction and a horizontal direction.

FIG. 1 is a perspective view showing a state in which a plurality of solar cell modules are packed using a packing material for solar cell modules according to an embodiment of the present invention. FIG. 2: is a figure which shows the solar cell module packed in one Embodiment of this invention, (a) is a top view which shows a mode seen from the non-light-receiving surface side, (b) is (A) A- It is sectional drawing seen from the A 'cross section, (c) is a perspective view which shows a mode that the B section was seen from diagonally. FIG. 3 is a perspective view of a packing material for a solar cell module according to an embodiment of the present invention. FIG. 4 is a perspective view showing the packing material for the solar cell module according to one embodiment of the present invention from a direction different from FIG. FIG. 5 is a view showing a state in which a solar cell module is packaged using a solar cell module packaging material according to an embodiment of the present invention. FIG. 5A shows a single solar cell module placed on the packaging material. (B) is a perspective view which shows a mode that the solar cell module was packed with the packing material adjacent up and down. In FIG. 5 (a), the solar cell panel is made transparent in order to clarify the position of the packing material, and in FIG. 5 (b), the solar cell positioned on the upper side to clearly indicate the position of the packing material. The module is transparent, and the solar cell panel of the solar cell module located on the lower side is transparent. FIG. 6 is a perspective view showing a state in which the solar cell module is placed on the packaging material for the solar cell module according to the embodiment of the present invention. FIG. 7 is a drawing showing a packing material for a solar cell module according to another embodiment of the present invention, where (a) shows a perspective view and (b) shows a state in which the packing material is mounted on the solar cell module. It is a perspective view. FIG. 8 is a perspective view showing a lid member used for a packing material for a solar cell module according to another embodiment of the present invention.

  Hereinafter, a packing material for a solar cell module according to an embodiment of the present invention will be described in detail with reference to the drawings. In addition, about the member of the same name, the same code | symbol shall be attached | subjected and the overlapping description is abbreviate | omitted. Further, since the drawings are schematically shown, the sizes and positional relationships of the components in each drawing can be changed as appropriate.

  The solar cell module 1 includes a rectangular solar cell panel 2 and a frame 3 provided along each side of the solar cell panel 2. And the packing of the solar cell module 1 was made into several horizontal via the packing material 20 arrange | positioned at the corner | angular part 1a of four corners about each solar cell module 1 turned over so that the light-receiving surface 1b might become a lower side. This is done by stacking the solar cell modules 1. The pallet 40 is disposed on the bottom side of the stacked solar cell modules 1.

  In the following description, the direction along one side of the solar cell module 1 shown in FIG. 1 is referred to as the X direction, and the direction parallel to the horizontal plane along the other side orthogonal to the one side of the solar cell module is defined as the Y direction. The direction orthogonal to the X direction and the Y direction is referred to as the Z direction. Of the Z direction, the + Z direction side is referred to as “up”, and the −Z direction side is referred to as “down”. Therefore, this Z direction is also referred to as the up-down direction.

Of the two solar cell modules 1 adjacent to each other in the vertical direction, the upper solar cell module 1 is the first solar cell module 1A, and the lower solar cell module 1 is the second solar cell module 1B. To do. Moreover, the packing material 20 provided in the corner | angular part of the 1st solar cell module 1A among the packing materials 20 adjacent to the upper and lower sides is provided in the corner | angular part of the 1st packing material 20A and the 2nd solar cell module 1B. 20 is the second packing material 20B.

  First, an example of the solar cell module 1 packed with the packing material 20 of the solar cell module of the present invention will be described.

  As the solar cell module 1, for example, various types such as a super straight structure, a glass package structure, or a substrate structure can be used. In the following description, a single crystal silicon solar cell having a large production amount and a super straight structure having a small amount of material that can be applied to a polycrystalline silicon solar cell will be described as an example. The four corners of the solar cell module 1 are defined as corners 1a. In addition, the side of the solar cell module 1 on which sunlight is incident first is defined as a light receiving surface 1b, and the back side of the light receiving surface 1b is defined as a back surface 1c. Further, a portion located on the side facing the light receiving surface 1b from the back surface 1c is referred to as a light receiving surface side (+ Z direction side), and a portion located on the side facing the back surface 1c from the light receiving surface 1b is referred to as a back surface side (−Z direction side). Called. In addition, let the inner side part of the flame | frame 3 in the back surface side 1c of the corner | angular part 1a of the solar cell module 1 be the inner side part 1c1.

  As shown in FIG. 2, the solar cell module 1 includes a rectangular solar cell panel 2 and a frame 3 provided along each side of the solar cell panel 2. The solar cell panel 2 includes a translucent substrate 4 that also serves as a module substrate, a sealing material 5 made of a transparent thermosetting resin, and a periphery that is protected by the sealing material 5 and is soldered by a wiring member 6 and the like. The solar cell elements 7 that are electrically connected to each other and the back surface member 8 that protects the back surface of the solar cell elements 7 are laminated and integrated. Moreover, the solar cell panel 2 is provided with a terminal box 9 for outputting power generation to the outside on the back member 8.

  The frame 3 has a fitting portion 3a that is a portion that accommodates the solar cell panel 2, and has an outer portion 3b of the frame that extends from the fitting portion 3a along the direction from the light receiving surface side 1b to the back surface side 1c. The frame 3 has a bottom 3c of the frame at a position facing the fitting portion 3a. Note that the bottom 3 c of the frame 3 may be a portion that is stretched from the end of the outer surface 3 b of the frame 3 toward the inner side of the solar cell module 1. Such a frame 3 has high strength to withstand wind pressure and snow accumulation after the solar cell module 1 is installed.

  Next, the packaging material for the solar cell module according to the embodiment of the present invention will be described.

<First Embodiment>
The packing material 20 according to the present embodiment is provided at the corner 1a of the solar cell module 1. The packing material 20 includes a side wall portion 21, a support portion 22, and a first projection portion 23. The packaging material 20 is integrally molded with a synthetic resin, for example. As a material of the packaging material 20, synthetic resin such as polyethylene, polypropylene, ethylene, propylene, polyvinyl chloride, ABS resin, phenol resin, which is easy to process and has low hardness and hardly damages the frame 3 can be used. And the packing material 20 can be produced by injection-molding a synthetic resin.

The side wall portion 21 has a role of transmitting the load of the solar cell module 1 when the packing material 20 is stacked, and has a substantially L-shape when viewed from above. Therefore, the packing material 20 has two side wall portions 21. In other words, the packaging material 20 has a pair of side wall portions 21 arranged in a substantially L shape. The side wall portion 21 includes a pair of two planar portions, and has a shape in which the two planar portions are orthogonally joined. And the side wall part 21 has a shape along the outer side part 3b of the flame | frame 3 corresponding to two sides located in the corner | angular part 1a of the solar cell module 1. FIG. In addition, when the packing material 20 is attached to the solar cell module 1, the side wall part 21 may be in contact with the outer side part 3b. If the side wall part 21 is the packing material 20 that contacts the outer side part 3 b, the packing material 20 can be easily fixed to the solar cell module 1.

  As shown in FIG. 3, the side wall part 21 has an upper part 21a of the side wall part on the upper side and a lower part 21b of the side wall part on the lower side. The upper part 21a of the side wall part and the lower part 21b of the side wall part are formed so as to have a surface that is substantially parallel to the lower surface of the frame 3 of the solar cell module 1 that is horizontally stacked in the vertical direction. Thereby, when the side wall part 21 stacks the first packing material 20A and the second packing material 20B, the upper part 21a of the side wall part of the first packing material 20A and the lower part 21b of the side wall part of the second packing material 20B Therefore, the solar cell modules 1 can be easily stacked. Moreover, with such a configuration, the load of the first solar cell module 1A can be easily transmitted to the second packaging material 20B via the first packaging material 20A. In addition, the upper part 21a of the side wall part and the lower part 21b of the side wall part may have a plurality of holes as shown in FIG. 3 as long as the load can be supported from the viewpoint of saving material.

  Moreover, the side wall part 21 has the upper inner surface 21c facing the outer side surface 3b of the solar cell module 1 between the upper part 21a of the side wall part and the support part 22, as shown in FIG. Further, the side wall portion 21 has a lower inner surface 21 d between the lower portion 21 b of the side wall portion and the support portion 22. The lower inner surface 21d of the side wall portion is located on a surface extending from the upper inner surface 21c of the side wall portion to the −Z direction side.

  The support part 22 has a role of supporting the lower part of the solar cell module 1. Further, as shown in FIG. 4, the support portion 22 is provided between the pair of side wall portions 21 below the side wall portion 21. Moreover, the support part 22 is extended horizontally toward the inner side where the solar cell module 1 is located from the inner surface of the side wall part 21. As shown in FIG. 5, the support part 22 supports the lower part of the solar cell module 1 with the upper surface 22a. The main surface below the support portion 22 is a lower surface 22b as shown in FIG.

The first protrusion 23 is formed to extend downward from the lower surface 22 b of the support portion 22. In the present embodiment, the first protrusion 23 extends in parallel with the main surface of the side wall 21,
It is provided so as to protrude downward. The first protrusion 23 is provided so as to be located inside the frame 3 of the solar cell module 1.

Specifically, as shown in FIG. 1, when a plurality of solar cell modules 1 are stacked in the vertical direction, as shown in FIG. 5 (b), the first solar cell module 1A (not shown) located on the upper side. The first protrusion 23 of the packaging material 20A provided on the inside is located inside the frame 3 of the second solar cell module 1B located on the lower side. In addition, the pair of side wall portions 21 of the packing material 20B is
It has a shape along the outer side portion 3b of the frame 3 of the second solar cell module 1B. At this time, the pair of side wall portions 21 may have a slight gap that can absorb the tolerance of the solar cell module 1B between the outer side portions 3b.

  In the present embodiment, the movement of the solar cell module 1 (second solar cell module 1B) in the horizontal direction is regulated (controlled) by the first protrusion 23 of the first packing material 20A and the side wall portion 21 of the second packing material B. )can do. Thereby, in this embodiment, the influence of the load which arises by the movement to the horizontal direction of the solar cell module 1 can be made small. That is, in this embodiment, the load resistance of the packaging material 20 can be improved. As a result, damage to the packaging material 20 can be reduced. Moreover, in this embodiment, as shown in FIG.5 (b), a pair of side wall part 21 of the 2nd packing material 20B may be in contact with the outer side part 3b of the solar cell module 1B, and the 1st projection part 23 is used. May contact the inner portion 1c1 of the second solar cell module 1B. Thereby, the horizontal movement of the solar cell module 1B can be more easily defined by the first protrusion 23 in contact with the inner portion 1c1 of the solar cell module 1B and the side wall portion 21 in contact with the outer portion 3b of the solar cell module 1B. Become. As a result, the generation of a load acting on the packaging material 20 can be further reduced.

  Further, as shown in FIG. 5, the first protrusion 23 has a first inscribed surface 23a and a second inscribed surface 23b that are in contact with the inner portion 1c1. If the first inscribed surface 23a and the second inscribed surface 23b are formed to be large, the movement of the solar cell module 1 can be more easily regulated. Thereby, the solar cell module 1 can be transported safely.

  Thus, in this embodiment, the transmission of the load in the stacking direction (vertical direction) of the solar cell module 1 is carried out by the side wall part 21, and the horizontal positioning is carried out by the side wall part 21 and the first projecting part 23. Thereby, since the tolerance by the load which acts on an up-down direction and a horizontal direction can be improved, even if the number of the lamination | stacking of the solar cell module 1 increases, the solar cell module 1 can be handled safely.

Further, the pair of side wall parts 21 (the lower part 21b of the side wall part) of the first packing material 20A is supported by the support part 22.
You may protrude so that it may extend below. In such a form, the first protrusion 23 having the lower inner surface 21d of the pair of side walls that intersect perpendicularly, and the first inscribed surface 23a and the second inscribed surface 23b facing the lower inner surface 21d of the side wall. An engagement space 26 can be formed between the two. In this way, the side wall 21 of the packing material 20 and the first protrusion 23 can cooperate to sandwich the frame 3 of the solar cell module 1 in the engagement space 26. Thereby, it becomes easier to regulate the movement of the solar cell module 1 in the horizontal direction.

  The upper portion 21a of the side wall portion of the second packing material 20B may be provided so as to be positioned lower than the bottom portion 3c when the second packing material 20B is attached to the second solar cell module 1B. Thereby, the first packing material 20 </ b> A can sandwich the second solar cell module 1 </ b> B in the engagement space 26. As a result, the movement of the solar cell module 1 in the horizontal direction can be more easily controlled, so that damage to the packing material 20 can be reduced.

  It should be noted that the arrangement inside the engagement space 26 of the first packing material 20A is not limited to the second solar cell module 1B. For example, as shown in FIG. 3, the upper inner surface 21c is more than the upper portion 21a. A plate-like portion protruding upward may be provided, and that portion may be disposed inside the engagement space 26.

Second Embodiment
As shown in FIG. 7, the packaging material 20 of the solar cell module according to the present embodiment extends from the upper inner surface 21 c of one side wall portion 21 toward the upper side of the solar cell module 1 (not shown). 24. The overhanging portion 24 extends in the horizontal direction from the one side wall portion 22 toward the other side wall portion 22 in the pair of side wall portions 22. Moreover, this overhang | projection part 24 has elasticity. In addition, in this embodiment, although the overhang | projection part 24 is each connected with a pair of side wall part 21, it does not need to be connected with both the side wall parts 21. FIG. For example, the overhanging portion 24 only needs to extend from at least one of the pair of side wall portions 21 so as to pass above the solar cell module 1 (not shown).

  Furthermore, in this embodiment, it has the 2nd protrusion part 25 which protrudes below from the overhang | projection part 24 and is located inside the flame | frame 3 of the solar cell module 1. As shown in FIG. Specifically, the second protrusion 25 is engaged with the inner portion 1c1 of the solar cell module 1, as shown in FIG.

In the packing material 20, the vertical distance between the support portion 22 and the overhang portion 24 may be approximately the same as the vertical size of the outer portion 3 b of the solar cell module 1. Therefore, when the packing material 20 is attached to the solar cell module 1, the overhanging portion 24 is arranged along the upper portion of the bottom portion 3 c of the solar cell module 1. Further, the solar cell module 1 has a packing material 2
When the packing material 20 is pushed in toward the corner portion 1a of the solar cell module 1 when mounting 0, the overhanging portion 24 is elastically deformed in a direction of temporarily separating from the support portion 22, and the second protrusion portion 25 is inserted. The elastic deformation of the overhanging portion 24 returns to the original state when engaging the inner portion 1c1 of the solar cell module 1 beyond the bottom portion 3c. Thereby, the overhang | projection part 24 comes to engage with the inner side part 1c1 of the solar cell module 1. FIG.

  According to the present embodiment, by providing the overhanging portion 24 and the second projecting portion 25 on the packaging material 20, the solar cell module 1 on which the packaging material 20 is mounted is temporarily transported individually. In addition, the occurrence of dropping of the packing material 20 from the solar cell module 1 can be reduced, and the corner portion 1a of the solar cell module 1 can be protected. In addition, the 2nd protrusion part 25 does not need to contact the inner side part 1c1 of the solar cell module 1. FIG. For example, if it is the 2nd projection part 25 provided so that it might be located in the inner side of the flame | frame 3 of the solar cell module 1 slightly spaced apart from the inner side part 1c1 of the solar cell module 1, from the solar cell module 1 mentioned above Occurrence of dropping of the packing material 20 can be reduced.

  Moreover, the overhang | projection part 24 and the 2nd projection part 25 are provided in the position which does not overlap with the support part 22 when the packing material 20 is planarly viewed from the + Z direction side. Thereby, the 1st projection part 23 and the 2nd projection part 25 can be engaged with the inner side part 1c1 of the solar cell module 1 with a large level | step difference from the back surface side 1c of the solar cell module 1 to the solar cell panel 2. FIG. Moreover, if it is such a form, the 1st solar cell module 1A and the 2nd solar cell module 1B will prevent the support part 22 of 20A of 1st packing materials, and the overhang | projection part 24 of the 2nd packing material 20B from contacting each other. Can be stacked. As a result, the first solar cell module 1A and the second solar cell module 1B can be easily stacked along the horizontal direction. Therefore, a plurality of solar cell modules 1 can be transported after being stably stacked.

<Third Embodiment>
As shown in FIG. 8, the packing material 20 of the solar cell module 1 according to this embodiment is a lid that covers the packing material mounted on the top solar cell module 1 among the stacked solar cell modules 1. A member 30 is provided.

  The lid member 30 has a structure similar to that extracted from the lower side from the support part 22 of the packing material 20, and has a placement part 31 having a shape similar to the side wall part 21, the support part 22, and the first protrusion part 23, respectively. It has a top surface 32 and an engaging portion 33. Moreover, the mounting part 31 has the slope 34 inclined toward the outer side, and the solar cell module 1 is transported more safely by applying a band to the solar cell modules in which many are stacked by using the slope 34. can do.

  Note that the solar cell module 1 applicable to the present embodiment is not limited to the super straight structure solar cell module described in the above embodiment, and has various structures such as a glass package structure or a substrate structure. It is applicable also to a solar cell module.

1: Solar cell module 1A: First solar cell module 1B: Second solar cell module 1a: Corner portion 1b: Light receiving surface side 1c: Back surface side 1c1: Inner portion 2: Solar cell panel 3: Frame 3a: Fitting portion 3b : Outer part 3c: Bottom part 4: Translucent substrate 5: Sealing material 6: Wiring member 7: Solar cell element 8: Back surface member 9: Terminal box 20: Packing material 20A: First packing material 20B: Second packing material 21: Side wall portion 21a: Upper portion 21b: Lower portion 21c: Upper inner surface 21d: Lower inner surface 22: Support portion 22a: Upper surface 22b: Lower surface 23: First protrusion 23a: First inscribed surface 23b: Second inscribed surface 24: Overhang portion 25: second protrusion 26: engagement space 30: lid member 31: placement portion 32: top surface 33: engagement portion 34: slope 40: pallet

Claims (4)

A solar cell module packaging material provided at a corner of a solar cell module in which a frame provided along each side of a rectangular solar cell panel is disposed,
A pair of side walls along the outer side of the frame on two sides located at the corners of the solar cell module;
A support portion that is provided between the pair of side wall portions and supports a lower portion of the solar cell module;
A first protrusion extending downward from the support,
An elastic overhang extending from at least one of the pair of side wall portions toward the upper side of the solar cell module, when a plurality of the solar cell modules are stacked horizontally in the vertical direction. Further, the first protrusion extending downward from the support portion supporting the first solar cell module located on the upper side is located inside the frame of the second solar cell module located on the lower side,
The overhanging portion is provided at a position that does not overlap the support portion when viewed in plan.
The support portion and the overhanging portion use the packing material provided at the corner of the first solar cell module as the first packing material, and the packing material provided at the corner of the second solar cell module as the second packing material. When used as a packing material, the support portion of the first packing material and the overhanging portion of the second packing material are provided at positions where they do not contact each other.
Packing material for solar cell modules. The packaging material for a solar cell module according to claim 1, further comprising a second projecting portion that extends downward from the projecting portion and is located inside the frame of the solar cell module.   3. The solar cell module according to claim 1, wherein the pair of side wall portions extends downward so as to sandwich the frame of the solar cell module in cooperation with the first projecting portion. Packing material.   4. The solar cell module packaging material according to claim 1, wherein upper surfaces of the pair of side wall portions are located below a top portion of the frame of the solar cell module. 5.

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