JP2019047631A - Method for loading resin solar roof module - Google Patents

Abstract

To provide a method for loading a resin solar roof module for preventing or suppressing displacement of the solar roof module to a body member even when a joint between the body member and the solar roof module peels off.SOLUTION: A retaining member 28 is inserted into an insertion hole 26 of a front header 18 to be screwed into a solar cell module 11. Consequently, since the head 70 of the retaining member 68 is locked in the insertion hole 26 even when an adhesive 60 of a joint between the solar cell module 11 and the front header 18 peels off due to thermal expansion of the resin solar cell module 11, displacement of the solar cell module 11 in a direction of separating from the front header 18 is prevented or suppressed.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a method of mounting a resin solar roof module.

  Heretofore, a glass solar roof module has been proposed in which a sealing layer sealing a solar battery cell is sandwiched between a surface layer located on the light receiving side and a back layer located on the back side. However, since the glass weight is large, a resin-made solar roof module has been proposed from the viewpoint of weight reduction of the vehicle (see, for example, Patent Document 1).

JP 2012-33573 A JP, 2015-104940, A

  The resinous solar roof module is fixed to the body member by being bonded to the body member at its peripheral portion. However, since the resin solar roof module has a linear expansion coefficient larger than that of glass, there is a possibility that peeling of the bonded portion may occur due to expansion and contraction due to temperature change.

  In addition, the technique which inserts the pin for positioning of a solar roof module with respect to a body is proposed (refer patent document 2). With such a configuration, even when the bonding portion peels, it is possible to exhibit the function of preventing the displacement of the solar roof module with respect to the body member in the direction orthogonal to the axial direction of the pin. However, there is room for improvement when there is a load input along the axial direction of the pin.

  In view of the above facts, it is an object of the present invention to provide a method for mounting a resin solar roof module that prevents or suppresses displacement of the solar roof module relative to the body member even when the joint between the body member and the solar roof module is peeled off. To aim.

  According to the first aspect of the present invention, the substantially flat solar roof module formed of resin provided with the positioning pin removably fixed to the mounting hole on the lower surface is inserted into the insertion hole formed at the predetermined position of the body member. Positioning the solar roof module with respect to the body member, joining the positioned solar roof module and the body member with an adhesive, and positioning the positioning pin from the mounting hole through the insertion hole And a step of inserting a retaining member having a diameter of a head larger than the diameter of the insertion hole into the insertion hole and fixing it in the mounting hole of the solar roof module.

  According to this method, when attaching the resin solar roof module to the body member, the solar roof module is made to approach from above the body member, and the positioning pin removably fixed to the mounting hole on the lower surface of the solar roof module Insert into the insertion hole of the member. This positions the solar roof module relative to the body member. At this time, the solar roof module is fixed to a predetermined position of the body member by bonding the solar roof module and the body member with an adhesive.

  Subsequently, the positioning pin is removed from the mounting hole through the insertion hole of the body member. Next, the retaining member is inserted from the insertion hole of the body member, and the retaining member is fixed to the mounting hole of the solar roof module.

  The resin solar roof module has a large linear expansion coefficient compared to glass, so even if the adhesive at the joint between the solar roof module and the body member is peeled off due to thermal expansion and contraction, the retaining member is the body member. It abuts on the insertion hole, and the displacement of the solar roof module in the extending direction is prevented or suppressed. In addition, because the head of the retaining member is larger in diameter than the insertion hole of the body member, there is a load input along the axial direction of the positioning pin (retaining member) in a state where the adhesive is peeled off. However, the head of the retaining member is locked in the insertion hole (body member), and the displacement of the solar roof module in the direction away from the body member is prevented or suppressed.

  Since the mounting method of the resin solar roof module of the invention according to claim 1 is configured as described above, displacement of the solar roof module with respect to the body member can be prevented or suppressed even when the joint portion is peeled off.

It is a disassembled perspective view explaining the resin solar roof module vehicle body attachment state which concerns on one Embodiment. It is a top view explaining the vehicle body attachment state of the resin solar roof module which concerns on one Embodiment. It is the sectional view on the AA line in FIG. 2 explaining the vehicle-body positioning state of the resin solar roof module which concerns on one Embodiment. It is the sectional view on the AA line in FIG. 2 explaining the vehicle body attachment state of the resin solar roof module which concerns on one Embodiment. It is a top view explaining the vehicle body attachment state of the resin solar roof module concerning other examples.

  The mounting structure of a solar cell module according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. In addition, the solar cell module which concerns on this embodiment is attached to a body member (vehicle frame member) as a roof of a vehicle body. Moreover, each figure is schematic and the illustration having a low relevance to the present invention is omitted. Further, in FIG. 1 to FIG. 5, the arrow FR indicates the front of the vehicle, the arrow W indicates the vehicle width direction, and the arrow UP indicates the upper side of the vehicle.

(Constitution)
As shown in FIG. 1, the mounting structure of the solar cell module of the automobile according to the present embodiment is such that the solar cell module 11 is attached to the vehicle body 12 as a roof. The vehicle body 12 is provided with a pair of roof side rails 14A and 14B provided at both ends in the vehicle width direction and extending in the vehicle longitudinal direction as members for supporting the solar cell module 11. The roof side rails 14A and 14B are integrally formed with the front pillars 16A and 16B and the like.

  Further, between the roof side rails 14A and 14B, a front header 18 and a rear header 22 extending in the vehicle width direction are respectively disposed on the vehicle front side and the vehicle rear side.

  The solar cell module 11 corresponds to a solar roof module. The roof side rails 14A, 14, the front header 18, and the rear header 22 are vehicle frame members, and correspond to body members.

  The mounting structure of the solar cell module according to the present embodiment is a structure in which the solar cell module 11 is attached to the opening 24 formed of the roof side rails 14A and 14B, the front header 18, and the rear header 22. Specifically, as shown in FIG. 4, the peripheral edge portion of the solar cell module 11 is joined (fixed) to the roof side rails 14A, 14B, the front header 18, and the rear header 22 with the adhesive 60, and It is fastened by a member 68.

  As shown in FIG. 2, the front header 18 is formed with positioning pins 62 and insertion holes 26 for inserting the retaining member 68, which will be described later. The insertion holes 26 and 28 are respectively formed in the vicinity of both end portions in the vehicle width direction of the front header 18. The insertion hole 26 is a round hole, and the insertion hole 28 is formed in a long hole whose longitudinal direction is the vehicle width direction.

  As shown in FIG. 3, the solar cell module 11 includes a light transmitting surface layer 30, and a sealing layer 34 disposed on the back side of the surface layer 30 and in which the power generation element (solar battery cell) 32 is sealed. , And a back layer 36 supporting the sealing layer 34 from the back side.

  The surface layer 30 is formed of a rectangular resin plate. The resin plate is made of, for example, a transparent and weather resistant polycarbonate (PC). A resin plate (PC plate) made of polycarbonate has excellent weather resistance and is lightweight, and therefore, is suitable as the surface layer 30 of the mounting structure of the solar cell module mounted on a vehicle. In addition, "resin" in this embodiment has light transmittance.

  In the surface layer 30, as shown in FIG. 3, a central portion 30A covering the sealing layer 34 and the back surface layer 36 as viewed from the vertical direction of the vehicle (the stacking direction with the sealing layer 34) And a peripheral portion 30B located along the outer periphery of the surface layer 30 and located on the vehicle outer side of the central portion 30A along the extending direction. Here, “(vehicle) outer side” is separated from the end side (for example, the surface layer 30) of the object (for example, the surface layer 30) in the vehicle width direction or the vehicle longitudinal direction (extension direction of the surface layer 30) The term “(vehicle) inner side” means the center side (sealing layer 34 side) of the object in the vehicle width direction or the vehicle front-rear direction.

  Further, as shown in FIG. 3, although the surface layer 30 has a substantially constant plate thickness, a convex portion 40 formed to project downward (back side layer 36 side) at the vehicle outer side end of the central portion 30A is It is formed along the outer periphery. Further, in the peripheral portion 30B of the surface layer 30, a frusto-conical boss 42 is formed in a portion facing the insertion holes 26 and 28 of the front header 18 when the solar cell module 11 is attached to the vehicle body 12. The boss 42 is formed with a screw hole 44 opened downward.

  The sealing layer 34 is composed of a plurality of power generation elements 32 and a sealing material 38 for sealing the power generation elements 32. The plurality of power generation elements 32 are regularly arranged in the sealing layer 34 and sealed by the sealing material 38. The power generation element 32 is a known power generation element such as a silicon-based cell. The sealing material 38 is formed of a transparent, elastic or adhesive ethylene-vinyl acetate copolymer (EVA).

  Further, as shown in FIG. 3, in the extending direction of the surface layer 30 (for example, the longitudinal direction of the vehicle), the end of the sealing layer 34 is on the vehicle inner side (the power generation element 32 side) than the end of the surface layer 30. positioned.

  The back layer 36 is configured of a back plate. The back plate is formed of the same PC as the surface layer 30 in order to prevent the buckling of the solar cell module 11 due to the use of the PC for the surface layer 30.

  As shown in FIG. 4, the back surface layer 36 covers the sealing layer 34 as viewed from the stacking direction. Accordingly, in the extending direction of the surface layer 30, the end of the back layer 36 is located on the vehicle outer side than the end of the sealing layer 34. On the other hand, the lower surface 40A of the convex portion 40 of the surface layer 30 is in contact with the upper surface 36A of the back surface layer 36, and the inner surface 40B is in contact with the vehicle outer end of the sealing layer 34.

  That is, the back layer 36 is joined to the sealing layer 34 by lamination, and the projections 40 of the surface layer 30 are joined to the back layer 36.

  Further, as shown in FIG. 3, in the extending direction of the surface layer 30 (for example, in the vehicle width direction), the end of the back layer 36 is positioned on the vehicle inside (the power generating element 32 side) than the end of the surface layer 30 doing. Therefore, as shown in FIG. 3, the lower surface 31 of the peripheral portion 30B of the surface layer 30 is exposed below the vehicle.

  As shown in FIG. 3, the front header 18 includes an upper wall 50 extending substantially in the longitudinal direction of the vehicle, a first vertical wall 52 extending downwardly of the vehicle from a rear end portion of the upper wall 50 in the longitudinal direction, 1) a first flange portion 54 extending rearward from the lower end of the vertical wall 52; a second vertical wall 56 extending downward from the rear end of the first flange portion 54 in the vehicle; And a second flange portion 58 extending rearward from the lower end of the vertical wall 56 in the vehicle longitudinal direction. The insertion holes 26 and 28 formed in the front header 18 are formed in the second flange 58.

  The upper surface of the first flange portion 54 and the lower surface 31 of the peripheral portion 30B of the surface layer 30 are fixed by a urethane-based adhesive 60.

  The positioning pin 62 used at the time of mounting is, as shown in FIG. 3, smaller in diameter than the pin portion 64 which is slightly smaller than the diameter of the insertion hole 26 (insertion hole 28) and the pin portion 64. And a screw 66 screwed into the screw hole 44.

  Further, the retaining member 68 used after mounting has a head 70 having a diameter larger than the diameter of the insertion hole 26 (the insertion hole 28), and a screw portion 72 screwed into the screw hole 44.

(Action)
A method of mounting the solar cell module 11 configured as described above on the vehicle body 12 will be described.

  As shown in FIG. 1, the solar cell module 11 is made to approach the opening 24 from above the vehicle body 12. At this time, positioning pins 62 are screwed into the screw holes 44 of the pair of bosses 42 of the solar cell module 11, respectively.

  Therefore, the pin portion 64 of the positioning pin 62 protruding downward from the lower surface 31 of the peripheral portion 30B of the surface layer 30 is inserted into the insertion holes 26, 28 of the front header 18, and the opening 24 (roof side rails 14A, 14B, front) The solar cell module 11 is installed at a predetermined position of the header 18 and the rear header 22).

  At this time, the adhesive 60 applied to a plurality of locations on the upper surface of the first flange portion 54 of the front header 18 is joined (fixed) to the lower surface 31 of the peripheral portion 30B of the surface layer 30 of the solar cell module 11.

  Similarly, the lower surface 31 of the peripheral portion 30B of the surface layer 30 of the solar cell module 11 is bonded (fixed) to the roof side rails 14A and 14B and the rear header 22 with the adhesive 60.

  As described above, after the solar cell module 11 is fixed at a predetermined position of the vehicle body 12, the positioning pin 62 screwed into the screw hole 44 of the boss 42 of the surface layer 30 is loosened and removed from the insertion holes 26 and 28.

  Subsequently, as shown in FIG. 4, the screw portions 72 of the pair of retaining members 68 are respectively inserted from the insertion holes 26 and 28 of the front header 18 and screwed into the screw holes 44 of the boss 42 of the surface layer 30.

  As described above, in the mounting structure of the solar cell module 11 according to the present embodiment, the front header 18 and the surface layer 30 of the solar cell module 11 are fastened by the retaining member 68.

  By the way, in the resin solar cell module 11 having a larger linear expansion coefficient than glass, expansion and contraction due to temperature change causes the roof side rails 14A and 14B, the front header 18, the joint portion between the rear header 22 and the solar cell module 11 to There is a risk that the adhesive 60 may peel off. In particular, since the adhesive force of the urethane-based adhesive 60 and the PC constituting the surface layer 30 is weak, there is a possibility of this.

  However, in the mounting structure of the solar cell module 11, as shown in FIG. 4, even when the bonding portion (adhesive agent 60) between the solar cell module 11 (surface layer 30) and the vehicle body 12 is peeled off, When the screw portion 72 abuts on the insertion holes 26 and 28, displacement of the solar cell module 11 in the horizontal direction with respect to the vehicle body 12 is suppressed.

  Further, even if a load to the upper side of the vehicle acts on the solar cell module 11, the head portion 70 of the retaining member 68 screwed to the surface layer 30 is inserted into the insertion holes 26 and 28 (second flange portion 58 And the solar cell module 11 is prevented from coming out of the vehicle.

  That is, in the mounting structure of the solar cell module 11 in which the solar cell module 11 is fixed to the opening 24 of the vehicle body 12 by the adhesive 60, the displacement of the solar cell module 11 is prevented or suppressed even if peeling of the adhesive 60 occurs. can do.

  Further, in the present embodiment, when the solar cell module 11 is attached to the vehicle body 12, the retaining member 68 is screwed into the screw hole 44 in which the positioning pin 62 for enhancing the assembling property is screwed. The solar cell module 11 is prevented from coming off the vehicle. That is, the screw holes for the retaining member 68 are newly added to the solar cell module 11 by replacing the retaining member 68 having the head 70 whose diameter is larger than the insertion holes 26 and 28 of the front header 18 and the positioning pin 62. Without providing it, it is possible to prevent the solar cell module 11 from coming off the vehicle.

  Furthermore, as shown in FIG. 2, the insertion hole 28 provided in the front header 18 is formed in an oblong shape in which the vehicle width direction is the longitudinal direction, so that the manufacturing error of the solar cell module 11 is absorbed. Can.

  In the present embodiment, the mounting structure of the solar cell module in which the surface layer 30 and the back layer 36 are formed of PC and the sealing layer 34 is formed of EVA has been described. It is also possible to apply to the mounting structure of the solar cell module in which the back layer 36 is formed of another resin.

  Moreover, in this embodiment, although the penetration holes 26 and 28 were formed in the vehicle width direction both-ends vicinity of the front header 18, respectively, it does not limit to this. Two insertion holes 26 and 28 may be formed in any one of the roof side rails 14A and 14B, the front header 18 and the rear header 22, or the respective insertion holes 26 and 28 may be formed in any two. May be For example, as shown in FIG. 5, the insertion holes 26 may be formed in the front header 18 and the insertion holes 28 in the rear header 22.

  Furthermore, in the present embodiment, the positioning pin 62 and the retaining member 68 are screwed into and fixed to the screw holes 44, but the present invention is not limited to this. For example, the positioning pin 62 may be detachably fitted in and fixed to the mounting hole, and the retaining member 68 may be fixed to the mounting hole in a lockable manner.

11 Solar cell module (solar roof module)
14A, 14B Roof side rail (body member)
18 Front header (body member)
22 Rear header (body member)
26 insertion hole 28 insertion hole 31 lower surface 60 adhesive 62 positioning pin 68 retaining member 70 head

Claims (1)

A substantially flat solar roof module formed of resin provided with a positioning pin removably fixed to a mounting hole on the lower surface is inserted into an insertion hole formed at a predetermined position of the body member, and the solar roof module is mounted on the body member Positioning with respect to
Bonding the positioned solar roof module and the body member with an adhesive;
Removing the positioning pin from the mounting hole through the insertion hole;
Inserting a retaining member whose diameter of the head is larger than that of the insertion hole into the insertion hole and fixing it in the mounting hole of the solar roof module;
Method of resin solar roof module equipped with.