JP2013002120A - Structure for fixing electronic component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for fixing an electronic component, which reduces strain of the electronic component due to expansion and contraction of a substrate so as to prevent damage of the electronic component.SOLUTION: A structure 10 for fixing an electronic component comprises: a membrane member 12 which expands and contracts in the plane direction; a flexible sheet-like solar cell module 14 which is arranged on the surface of the membrane member 12; and a light transmissive sheet member 16 which covers the surface (light-receiving plane) of the solar cell module 14. The peripheral edge 16A of the sheet member 16 is bonded and fixed to the surface of the membrane member 12 at the periphery of the edge of the solar cell module 14 with an adhesive 18. When the membrane member 12 expands or contracts in the plane direction, the solar cell module 14 held inside the sheet member 16 moves relative to the membrane member 12, so that the generation of strain in the solar cell module 14 is suppressed.

Description

  The present invention relates to an electronic member fixing structure for fixing a sheet-like electronic member.

  Conventionally, a structure in which a solar cell module is fixed to a roof of a building is known as an example of a sheet-like electronic member.

  In the following Patent Document 1, a solar cell module maintaining flexibility is mounted on the upper surface of a fixing member having an I-shaped cross section fixed to a roof base plate, and a T-shaped cross section for pressing and fixing the solar cell module from above. A method for installing a solar cell module is disclosed in which a shaped presser is fitted into a groove on the upper surface of a fixing member, and the fixing tool is passed through fixing holes formed in the presser, the solar cell module, and the fixing member, respectively. Has been.

JP 2007-123936 A

  However, in the installation method of the solar cell module described in Patent Document 1, a roof field is formed by inserting an insertion pin as a fixing tool through an attachment hole formed in each of the presser, the solar cell module, and the fixing member. Since the presser, the solar cell module, and the fixing member are integrally fixed to the ground plate, it is difficult to apply the above installation method when installing the solar cell module on the base that expands and contracts in the in-plane and out-of-plane directions. That is, in the above installation method, when the base expands and contracts, the force generated by the expansion and contraction of the base acts on the solar cell module and the solar cell module is distorted. For this reason, the solar cell module may be damaged or the power generation performance may be reduced.

  In view of the above facts, an object of the present invention is to obtain an electronic member fixing structure that suppresses distortion of the electronic member due to expansion and contraction of the base and prevents damage to the electronic member.

  In order to achieve the above object, an electronic member fixing structure according to the invention of claim 1 includes a base that expands and contracts in a surface direction, a sheet-like electronic member disposed on the surface of the base, and at least a surface of the electronic member. And a translucent sheet member whose peripheral part is attached to the base while holding the electronic member movably with respect to the base.

  According to the first aspect of the present invention, the sheet-like electronic member is disposed on the surface of the base that expands and contracts in the plane direction, and the translucent sheet member that covers at least the surface of the electronic member has the electronic member as the base. While holding | maintaining so that movement is possible, the peripheral part of the sheet | seat member is attached to the foundation | substrate. When the substrate expands and contracts in the surface direction, the electronic member moves relative to the substrate inside the sheet member, so that the electronic member does not follow the expansion and contraction of the substrate. As a result, the occurrence of distortion of the electronic member due to the expansion and contraction of the base is suppressed, and damage to the electronic member is prevented.

  An electronic member fixing structure according to a second aspect of the present invention is the electronic device fixing structure according to the first aspect, wherein the sheet member is a bag body formed in a bag shape, and the electronic member is accommodated inside the bag body. It is what.

  According to the invention described in claim 2, the sheet member is a bag body formed in a bag shape, the electronic member is accommodated in the bag body, and the bag body is attached to the base. When the base expands and contracts in the surface direction, the electronic member moves relative to the base within the bag body. For this reason, the electronic member does not follow the expansion and contraction of the base, and the occurrence of distortion of the electronic member is suppressed.

  An electronic member fixing structure according to a third aspect of the present invention is the electronic member fixing structure according to the first or second aspect, wherein a peripheral portion of the sheet member is fixed to the base with an adhesive or a pressure-sensitive adhesive.

  According to invention of Claim 3, the peripheral part of a sheet | seat member is being fixed to the foundation | substrate with the adhesive agent or the adhesive, and it can hold | maintain an electronic member inside a sheet | seat member with a simple structure so that a movement is possible. .

  An electronic member fixing structure according to a fourth aspect of the present invention is the electronic member fixing structure according to any one of the first to third aspects, wherein the electronic member is a solar cell having flexibility.

  According to invention of Claim 4, an electronic member is a solar cell provided with flexibility, and even if a base expands | contracts, generation | occurrence | production of the distortion of a solar cell can be suppressed.

  The electronic member fixing structure according to a fifth aspect of the present invention is the electronic member fixing structure according to any one of the first to fourth aspects, wherein the foundation is a film material attached to the roof of a building.

  According to the invention described in claim 5, when the membrane material is attached to the roof of the building and the electronic member is attached to the membrane material by the translucent sheet member, the electronic member expands and contracts. And the occurrence of distortion of the electronic member is suppressed.

  According to the electronic member fixing structure of the present invention, it is possible to suppress distortion of the electronic member due to expansion and contraction of the base, and to prevent damage to the electronic member.

It is sectional drawing which shows the whole structure of the electronic member fixing structure which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the whole structure of the electronic member fixing structure which concerns on 2nd Embodiment of this invention.

  Hereinafter, the first embodiment of the electronic member fixing structure of the present invention will be described with reference to FIG.

  FIG. 1 is a sectional view showing the overall configuration of the electronic member fixing structure 10. As shown in this figure, the electronic member fixing structure 10 includes a film material 12 as a base that expands and contracts in the surface direction, and a solar cell module 14 as a sheet-like electronic member arranged on the surface of the film material 12. And a sheet member 16 that covers the surface of the solar cell module 14 and has a peripheral edge portion 16 </ b> A attached to the surface of the film material 12 with an adhesive 18.

  The membrane material 12 is a roof material attached to the roof of a building (not shown), and is used for a tent, a dome-type roof material, or the like. The membrane material 12 is formed by forming a fluororesin film excellent in oil repellency and water repellency on the surface of a base fabric woven with glass fibers or fibers made of synthetic resin such as polyamide or polyester. The fluororesin film formed on the surface of the film material 12 makes it difficult for dirt to adhere to the surface of the film material 12 and is excellent in durability. The membrane material 12 expands and contracts in the surface direction (including both the in-plane direction and the out-of-plane direction) by an external force such as an internal pressure of the building or a wind blown to the outside of the building. That is, the membrane material 12 is constructed while introducing initial tension at the time of construction. In addition, after construction, tension is applied by external forces such as wind, thermal expansion, snow accumulation, and accumulated water, and the surface expands and contracts. In the present embodiment, the film material 12 is configured to extend by, for example, a maximum of about 5%.

  The solar cell module 14 is a sheet-like member having flexibility, and a thin film solar cell is disposed on a resin film substrate having electrical insulation properties such as polyimide, and the surface of the solar cell (light receiving) together with an electrode. Surface) is coated with a light-transmitting protective film. The solar cell and the film substrate, and the solar cell and the protective film are bonded with an adhesive. The solar battery cell is composed of a photovoltaic device such as crystalline Si, polycrystalline Si, amorphous Si, or CIGS compound semiconductor. The solar cell module 14 can be bent with an arbitrary curvature. In this embodiment, the solar cell module 14 is formed in a substantially rectangular shape. For example, the length is 3500 to 6000 mm, the width is 350 to 500 mm, and the thickness is 1 to 10 mm. In addition, the dimension of the solar cell module 14 is not limited to this. Moreover, in this embodiment, the tensile strength of the vertical direction of the solar cell module 14 is about 1400-1500 N / cm, and the tensile strength of the horizontal direction is about 1100-1200 N / cm.

  The sheet member 16 has translucency and is larger than the outer shape of the solar cell module 14. In the present embodiment, the sheet member 16 has a substantially rectangular shape that is slightly larger than the substantially rectangular solar cell module 14. The sheet member 16 is disposed so as to cover the entire surface (light-receiving surface) of the solar cell module 14, and the peripheral portion 16 </ b> A of the sheet member 16 is coated with the adhesive 18 around the edge of the solar cell module 14. 12 is bonded (adhered and fixed) to the surface. The solar cell module 14 receives sunlight through the sheet member 16 to generate power.

  The solar cell module 14 is not bonded to the surface of the film material 12 but is held movably by a sheet member 16 attached to the surface of the film material 12. In other words, the solar cell module 14 is movable with respect to the film material 12 inside the sheet member 16 attached to the surface of the film material 12.

  As the sheet member 16, a resin film can be used. For example, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyvinyl chloride, polyvinylidene chloride, polyvinyl butyral, polyamide, polyether, polysulfone, Polyether sulfone, polyarylate, polyether imide, polyether ketone, polyether ether ketone, polyolefin such as EVA, polycarbonate, triacetyl cellulose (TAC), acrylic resin, polyimide, or aramid can be used. In the present embodiment, the sheet member 16 is configured. However, a plurality of sheet members may be stacked in order to ensure strength.

  Since the fluororesin coating on the surface of the film material 12 has poor adhesion, when the peripheral edge portion 16A of the sheet member 16 is bonded and fixed to the surface of the film material 12 with the adhesive 18, the film material 12 is bonded beforehand. It is preferable to perform the surface treatment of the fluororesin coating of the part. Surface treatment methods include chemical treatment methods using potassium dichromate, metallic sodium and sodium-naphthalene complexes, methods using corona discharge, plasma discharge, sputter etching and other discharge treatments, and irradiation with an argon fluoride excimer laser. A processing method or the like is used. The surface treatment method for the fluororesin coating is described in JP-A-2007-33085.

  As the adhesive 18, a reaction curing type adhesive, a hot melt type adhesive, or the like is used. For example, an epoxy adhesive, a phenol adhesive, a bromine adhesive, an acrylic-modified silicone adhesive, a butyl rubber adhesive, or the like is used. Instead of the adhesive 18, a rubber-based or acrylic resin-based pressure-sensitive adhesive may be used.

  Although illustration is omitted, a plurality of solar cell modules 14 are arranged in the horizontal direction and the vertical direction of the surface of the film material 12, and the plurality of solar cell modules 14 are respectively attached to the surface of the film material 12 by the sheet member 16. And is held movably. Wiring is connected to the electrodes provided inside the solar cell module 14, and wiring processing is performed in which the wiring is drawn inside the sheet member 16 and connected to an external power source.

  Next, the operation and effect of the electronic member fixing structure 10 of the present embodiment will be described.

  A peripheral edge portion 16 </ b> A of the sheet member 16 is fixed to the surface of the film material 12 with an adhesive 18, and the solar cell module 14 is held movably with respect to the film material 12 inside the sheet member 16. When the membrane material 12 attached to the roof of the building (not shown) expands and contracts in the plane direction (in-plane direction and out-of-plane direction) due to external pressure such as internal pressure of the building or wind, it is disposed inside the sheet member 16. The solar cell module 14 moves relative to the film material 12. For this reason, the solar cell module 14 does not follow the expansion and contraction of the film material 12, and the generation of distortion of the solar cell module 14 can be suppressed.

  For example, the film material 12 may extend up to about 5%, and the solar cell module 14 may break the power generation element with a strain of about 2 to 3%, and the power generation capacity may be reduced. When the solar cell module 14 moves relative to the film material 12 inside the sheet member 16, the occurrence of distortion of the solar cell module 14 due to the expansion and contraction of the film material 12 is suppressed. For this reason, it is possible to prevent the solar cell module 14 from being damaged and the power generation capacity from being lowered.

  In this embodiment, when the solar cell module 14 is attached to the surface of the film material 12, the solar cell module 14 is temporarily fixed to the surface of the film material 12, and then the entire surface of the solar cell module 14 is attached to the sheet member 16. The solar cell module 14 is temporarily fixed, and the peripheral edge portion 16A of the sheet member 16 is bonded to the surface of the film material 12. For this reason, the solar cell module 14 can be easily attached to the surface of the film | membrane material 12, and the workability | operativity at the time of construction is favorable. Further, the peripheral edge portion 16A of the sheet member 16 is fixed to the surface of the film material 12 by the adhesive 18, and the solar cell module 14 can be held movably inside the sheet member 16 with a simple configuration.

  Next, the electronic member fixing structure of the second embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the member same as 1st Embodiment, and the overlapping description is abbreviate | omitted.

  FIG. 2 is a sectional view showing the entire configuration of the electronic member fixing structure 30. As shown in this figure, the electronic member fixing structure 30 includes a bag body 32 made of a bag-like sheet member that houses the solar cell module 14 therein. The bag body 32 includes a lower sheet member 34 disposed on the surface of the membrane material 12 and an upper sheet member 36 disposed above the lower sheet member 34. The peripheral edge of the sheet member 36 is joined by an adhesive (not shown) or the like. The inside of the bag body 32 formed by the lower sheet member 34 and the upper sheet member 36 is formed larger than the outer dimensions of the solar cell module 14, and the solar cell module 14 can move inside the bag body 32. Is housed in.

  A peripheral edge 34 </ b> A of the lower sheet member 34 is bonded (adhered and fixed) to the surface of the film material 12 with an adhesive 18. The upper sheet member 36 has translucency and covers the entire surface (light receiving surface) of the solar cell module 14. In the present embodiment, the upper sheet member 36 is made of a transparent resin film. Since the lower sheet member 34 is disposed on the lower side of the surface (light receiving surface) of the solar cell module 14, it is not necessarily required to have translucency. In the present embodiment, the lower sheet member 34 is made of a film made of a resin different from that of the upper sheet member 36, but a film made of the same resin as the upper sheet member 36 may be used.

  In such an electronic member fixing structure 30, the solar cell module 14 is accommodated in the bag body 32 formed by the lower sheet member 34 and the upper sheet member 36, and the peripheral portion 34 </ b> A of the lower sheet member 34. Is bonded to the surface of the membrane material 12 by an adhesive 18. Accordingly, when the film material 12 expands and contracts in the plane direction, the solar cell module 14 moves relative to the film material 12 inside the bag body 32. For this reason, the solar cell module 14 does not follow the expansion and contraction of the film material 12, and the generation of distortion of the solar cell module 14 can be suppressed.

  In the second embodiment, the bag body 32 is formed by the lower sheet member 34 and the upper sheet member 36, but a single sheet member may be folded to form the bag body. Moreover, in order to ensure strength, a plurality of sheet members may be overlapped to form a bag body.

  In the first and second embodiments, the sheet-like solar cell module 14 having flexibility is used. However, the present invention is not limited to this, and sheet-like electrons such as an LED, a liquid crystal panel, and a plasma panel are used. The present invention can also be applied to a structure for fixing a member.

  In the first and second embodiments, the film material 12 that expands and contracts in the surface direction is used. However, the present invention is not limited to this, and the present invention can be applied to a substrate other than the film material as long as the film material expands and contracts in the surface direction. The electronic member fixing structure can be applied.

  Moreover, in the said 1st and 2nd embodiment, although the film | membrane material 12 is a roof material used for the roof of a building, it is not limited to this, The foundation | substrate used for another structure etc. of this invention An electronic member fixing structure can be applied.

10 Electronic member fixing structure 12 Film material (base)
14 Solar cell module (electronic component)
16 Sheet member 16A Peripheral part 18 Adhesive 30 Electronic member fixing structure 32 Bag body 34 Lower sheet member 34A Peripheral part 36 Upper sheet member

Claims (5)

A base that expands and contracts in the surface direction;
A sheet-like electronic member disposed on the surface of the base;
A translucent sheet member that covers at least the surface of the electronic member, holds the electronic member movably with respect to the base, and has a peripheral edge attached to the base;
An electronic member fixing structure. The sheet member is a bag formed in a bag shape,
The electronic member fixing structure according to claim 1, wherein the electronic member is accommodated in the bag body.   The electronic member fixing structure according to claim 1 or 2, wherein a peripheral portion of the sheet member is fixed to the base with an adhesive or an adhesive.   The electronic member fixing structure according to any one of claims 1 to 3, wherein the electronic member is a solar cell having flexibility.   The electronic member fixing structure according to any one of claims 1 to 4, wherein the base is a film material attached to a roof of a building.

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