JP2019043377A - Mounting structure of resin solar roof module - Google Patents

Abstract

To provide a resin solar roof module mounting structure capable of suppressing the occurrence of thermal distortion and maintaining its appearance. A contact portion 60 of a seal member 52 is in contact with the center side of the upper surface of a surface layer 30 of a solar cell module 11 in the center of the vehicle width direction. Even when the distance between the end portion in the vehicle width direction and the seal member 52 increases due to contraction, the contact state is maintained, and the appearance of the roof is prevented from deteriorating. Further, since the end portion in the vehicle width direction of the surface layer 30 and the seal member 52 are separated from each other by a predetermined distance, the surface layer 30 expands (extends) when the temperature rises, and the end portion in the vehicle width direction becomes the seal member 52. Abutting is prevented or suppressed, and thermal distortion can be prevented or suppressed. [Selection] Figure 3

Description

  The present invention relates to a mounting structure of 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 solar panel has been proposed from the viewpoint of weight reduction of the vehicle.

  For example, Patent Document 1 proposes a module (solar roof module) in which a vehicle roof is formed by a support material, a back sheet, a sealing film, and a resin solar cell panel in which a top film is formed of a resin. In such a solar cell panel, the end of the solar cell panel is bonded with an adhesive to the mohican groove formed between the side rail outer and the end of the solar cell panel, and the peripheral portion of the solar cell panel A sealant is provided, and a mounting structure covered with a roof molding is shown.

JP 2012-33573 A

  By the way, since the coefficient of linear expansion of the resin solar roof module is large compared to that of glass, the amount of expansion and contraction due to temperature change is very large.

  Accordingly, if the resin solar roof module is not allowed to stretch at the peripheral portion due to temperature rise, the solar roof module may be distorted.

  In addition, the peripheral portion of the solar roof module may be exposed from the lower side of the seal member due to the shrinkage due to the temperature drop of the solar roof module, and the appearance of the roof may be deteriorated.

  That is, in the resin solar roof module, there is room for improvement in terms of suppressing the occurrence of thermal distortion due to temperature change and maintaining the appearance of the roof.

  An object of the present invention is to provide a mounting structure of a resin solar roof module capable of suppressing the occurrence of thermal distortion and maintaining the appearance in consideration of the above fact.

  The invention according to claim 1 comprises a substantially flat resin solar roof module functioning as a roof of a vehicle, a body member of a vehicle to which the lower surface of the peripheral portion of the solar roof module is adhered, and the peripheral portion of the solar roof module A body portion disposed between the end face of the body and the body member at a predetermined distance from the end face, and a seal portion extending from an upper portion of the body portion to an inner side of the end face above the solar roof module; A seal member extending from an inner end of the seal portion toward the solar roof module and having an abutting portion in contact with an upper surface of the solar roof module.

  According to this configuration, the body member is joined to the lower surface of the peripheral portion of the resin solar roof module. In addition, the main body of the seal member is disposed between the end face of the peripheral portion of the solar roof module and the body at a predetermined distance from the end face of the peripheral portion. Furthermore, the seal member extends from the upper part of the main body to the upper side of the solar roof module to the inner side than the end face of the solar roof module, and the inner end of the seal part extends to the solar roof module side And a contact portion that is in contact with the top surface of the module.

  Therefore, the gap between the end face of the peripheral portion of the solar roof module and the main body portion of the seal member is covered with the seal portion and the contact portion of the seal member, and visual recognition from the outside is prevented. Therefore, the appearance of the roof is excellent.

  In particular, even when the temperature drops, the resin solar roof module having a large linear expansion coefficient as compared with glass shrinks and the distance between the peripheral portion and the main portion of the seal member increases, the peripheral edge on the upper surface of the solar roof module Since the seal part extends to the center side of the end face of the part, the contact state between the contact part located at the inner end of the seal part and the upper surface of the surface layer is maintained, and the peripheral part of the solar roof module It can prevent that the clearance gap between the end surface of the said, and the main-body part of a sealing member is visually recognized from the outside. Therefore, the appearance of the roof is prevented from being deteriorated.

  Further, when the temperature rises, the resin solar roof module expands (stretches), and the peripheral edge portion thereof may abut against the seal member and be distorted. However, since the end surface of the peripheral portion of the resin solar roof module and the seal member are separated by a predetermined distance, contact of the end surface of the peripheral portion with the seal member is prevented or suppressed even if the solar roof module expands. , Thermal distortion of the solar roof module can be prevented or suppressed.

  The mounting structure of the resin solar roof module according to the first aspect of the present invention is configured as described above, so that the occurrence of thermal distortion can be prevented or suppressed, and the appearance of the roof can be maintained.

It is a disassembled perspective view explaining the vehicle body attachment state of the attachment structure of the resin solar roof module which concerns on one Embodiment of this invention. It is a top view which shows the attachment structure of the resin solar roof module which concerns on one Embodiment of this invention. It is the sectional view on the AA line in FIG.

  A mounting structure of a solar cell module according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. In addition, the solar cell module which concerns on this embodiment is attached to a body (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. 3, 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 10 of the solar cell module of the automobile according to the present embodiment is such that the solar cell module 11 is mounted on 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.
The mounting structure 10 of the solar cell module corresponds to the mounting structure of the resin solar roof module, and the solar cell module 11 corresponds to the solar roof module.

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 roof side rails 14A, 14, the front header 18, and the rear header 22 are vehicle frame members and correspond to body members.

  The solar cell module mounting structure 10 according to the present embodiment has 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. 2, peripheral portions of the solar cell module 11 are joined (fixed) to the roof side rails 14A and 14B, the front header 18, and the rear header 22.

  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 10 of the solar cell module mounted on a vehicle. In addition, "resin" in this embodiment has light transmittance.

  Further, as shown in FIG. 3, although the surface layer 30 has a substantially constant plate thickness, a convex portion 40 which is formed to project to the vehicle lower side (rear layer 36 side) at the vehicle outer end is along the outer periphery It is formed.

  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.

  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, in the vehicle width direction), the end of the sealing layer 34 is on the vehicle inner side (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. 3, the back surface layer 36 covers the sealing layer 34 as viewed in 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, in the vicinity of the outer side end portion of the surface layer 30, a convex portion 40 which protrudes to the lower side of the vehicle is formed. The lower surface 40A of the convex portion 40 is in contact with the upper surface 36A of the back layer 36, and the inner side 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 not bonded to the sealing layer 34 or the back layer 36, and is exposed below the vehicle.

  As shown in FIG. 3, the roof side rail 14 </ b> A includes an upper wall 41 extending substantially in the vehicle width direction, and a first vertical wall 42 extending downward from the vehicle width direction inside end of the upper wall 41. A lateral wall 44 extending inward in the vehicle width direction from the lower end of the first longitudinal wall 42, a second longitudinal wall 46 extending downward from the inward end of the lateral wall 44 in the vehicle, and a lower end of the second longitudinal wall 46 And a flange portion 48 extending inward in the vehicle width direction.

  The vehicle (in the vehicle width direction) inside of the upper surface of the flange portion 48 and the lower surface 31 of the peripheral portion 30B of the surface layer 30 are fixed by a urethane-based adhesive 50.

  Further, a seal member (molding) 52 is disposed along the roof side rail 14A. Seal member 52 has a substantially rectangular main body portion 54 in a cross section perpendicular to the extending direction, a projecting portion 56 formed to project outward from the upper portion of main body portion 54 to the vehicle (vehicle width direction), and a vehicle (vehicle width direction) A seal portion 58 is formed to project inward, and an abutting portion 60 is formed to project downward from the inner end of the seal portion 58 in the vehicle width direction.

  The seal member 52 configured in this manner causes the protrusion 56 to be the first longitudinal wall of the roof side rail 14A and the first longitudinal wall by bringing the main body 54 into contact with the flange portion 48 and the second longitudinal wall 46 of the roof side rail 14A. The wall 42 is abutted. Thus, the seal member 52 is fitted to the vehicle inner side of the roof side rail 14A, so that the tip of the seal portion 58 extends to the upper side of the vehicle inner side than the end surface of the peripheral portion 30B of the surface layer 30. The contact portion 60 is in contact with the upper surface of the surface layer 30.

  The sealing member 52 is molded in two colors, and the main body portion 54, the projecting portion 56, and the sealing portion 58 are formed of a relatively rigid resin, and the rigidity is relatively low (for flexibility The abutment portion 60 is formed of a (rich) member.

  Further, the vehicle outer side end of the solar cell module 11, that is, the vehicle outer side end of the surface layer 30, is separated by a predetermined distance D from the seal member 52 (main body 54) disposed on the roof side rail 14A. That is, a gap 62 of a predetermined distance D is formed between the vehicle outer end of the surface layer 30 and the main body 54 of the seal member 52.

  Further, the other end of the solar cell module 11 (surface layer 30) in the vehicle width direction is also attached to the roof side rail 14B. Further, the end in the vehicle longitudinal direction of the solar cell module 11 (surface layer 30) is also fixed to the front header 18 and the rear header 22 in the same manner. That is, as shown in FIG. 2, the seal member 52 is formed in a substantially rectangular frame shape in plan view, and is fitted to the roof side rails 14A and 14B, the front header 18 and the rear header 22 to form a seal portion. A space 62 (see FIG. 3) between the vehicle outer side end of the solar cell module 11 (surface layer 30) and the seal member 52 (body portion 54) is prevented from being visually recognized from the outside by 58.

(Action)
The operation of the solar cell module mounting structure 10 configured as described above will be described.

  As shown in FIG. 3, since the surface layer 30 is formed of PC, the solar cell module 11 achieves weight reduction as compared with the case where it is formed of inorganic glass.

  On the other hand, since the surface layer 30 etc. are shape | molded with resin, the solar cell module 11 has a large linear expansion coefficient compared with glass. Therefore, the surface layer 30 expands (extends) to the vehicle outer side due to the temperature rise. Here, as shown in FIG. 3, a gap 62 (distance D in the vehicle width direction) is set between the end in the vehicle width direction of the surface layer 30 and the main body 54 of the seal member 52. Therefore, if the vehicle width direction extension distance on one end side of the surface layer 30 is less than D, the vehicle width direction end of the surface layer 30 does not abut the main body 54 of the seal member 52. As a result, even if the surface layer 30 is thermally expanded due to a temperature rise or the like, the both ends in the vehicle width direction of the surface layer 30 abut the seal member 52, and deformation or the like of the surface layer 30 due to thermal strain is prevented or suppressed. Ru.

  Further, the seal portion 58 of the seal member 52 is formed to extend from the main body portion 54 above the surface layer 30 to the inner side of the vehicle than the end face of the peripheral portion 30B. Further, the contact portion 60 of the contact portion 60 of the seal member 52 is in contact with the upper surface of the surface layer 30 from the inner end portion of the seal portion 58.

  Therefore, even when the surface layer 30 contracts due to a temperature drop or the like, the contact portion 60 of the seal member 52 continues to abut on the upper surface of the surface layer 30. That is, even when the surface layer 30 contracts due to temperature drop, the contact state between the upper surface of the surface layer 30 and the contact portion 60 of the seal member 52 is maintained. Therefore, the gap 62 between the peripheral portion 30B of the surface layer 30 and the seal member 52 is prevented from being visually recognized from the outside, and the appearance of the roof of the vehicle is maintained.

  In particular, since the contact portion 60 is formed of a resin having a lower rigidity (higher flexibility) than the other portions of the seal member 52, relative movement between the surface layer 30 and the upper surface is smoothly performed. be able to.

  Here, although the operation between the surface layer 30 and the roof side rail 14A has been described, the same applies between the surface layer 30 and the roof side rail 14B, and the same applies between the front header 18 and the rear header 22. It is.

  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 attachment structure of the solar cell module in which the back layer 36 is formed of other resin.

10 Mounting structure of solar cell module (mounting structure of resin solar roof module)
11 Solar cell module (solar roof module)
14A, 14B Roof side rail (body member)
18 Front header (body member)
22 Rear header (body member)
30B peripheral portion 52 seal member 54 main body portion 58 seal portion 60 contact portion

Claims (1)

A substantially flat solar roof module formed of a resin,
A vehicle body member to which the lower surface of the peripheral portion of the solar roof module is bonded;
A main body portion disposed at a predetermined distance from the end face between the end face of the peripheral portion of the solar roof module and the body member, and an upper portion of the main body portion to the upper side of the solar roof module and inside the end face A seal member having a seal portion extending, and an abutment portion extending from an inner end of the seal portion to the solar roof module side and in contact with the upper surface of the solar roof module;
Mounting structure of resin solar roof module equipped with.