JP2010258393A - Shock absorbing member for solar cell module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify and improve the efficiency of a work of attaching a shock absorbing member to an external circumferential end of a solar cell panel. <P>SOLUTION: The shock absorbing member 40 causes a pair of first plate-like piece 41 and second plate-like piece 42 which are oppositely disposed, and a support piece 43 positioned between the plate-like pieces 41, 42 and connected to an intermediate portion of the plate-like pieces 41, 42 to define a housing 45 capable of housing a solar cell panel BP. The first and second plate-like pieces 41 and 42 have operation pieces 41B and 42B extending in the direction opposite to the housing 45 with the support piece 43 sandwiched, respectively. The support piece 43 has a fragile part 47 on the intermediate portion. At least either the first plate-like piece 41 or the second plate-like piece 42 displaces its posture in a direction for opening the housing 45 by allowing the support piece 43 to be deformed by the fragile part 47 based on the movement of each of the operation pieces 41B, 42B in the closing direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a buffer member for a solar cell module that is inserted between an outer peripheral end of a solar cell panel and a frame attached to the outer peripheral end.

  A solar cell module including a rectangular solar cell panel in which a plurality of solar cells are connected in series or in parallel has been put into practical use. This solar cell module is provided with a frame made of aluminum or stainless steel at the outer peripheral end of the solar cell panel, and a buffer member is interposed between the solar cell panel and the frame. The buffer member prevents rattling of the frame body with respect to the solar cell panel and prevents rainwater and dust from entering the outer peripheral end surface of the solar cell panel. FIG. 13 is a schematic perspective view showing a solar cell panel BP having a buffer member 30 attached to the outer peripheral end portion 10 with a part of the panel BP broken away. The buffer member 30 cut | disconnected by the length suitable for the side length of each outer periphery edge part 10 is mounted | worn with each outer periphery edge part 10 of 4 sides in the solar cell panel BP. The four buffer members 30 attached to each outer peripheral end 10 have the longitudinal ends of one adjacent buffer member 30 joined to the longitudinal ends of the other buffer member 30, and the outer periphery of the solar panel BP. It is connected and configured in a rectangular frame shape surrounding the whole.

  Each buffer member 30 is an extruded member made of synthetic resin or rubber, and has appropriate flexibility and elasticity. As shown in FIG. 14, each buffer member 30 includes a pair of first plate-like piece portion 31 and second plate-like piece portion 32 that are arranged to face each other, and first plate-like piece portion 31 and second plate-like piece portion. And a support piece 33 connected to one end edge of the both plate-like pieces 31 and 32 in the short direction. Therefore, the buffer member 30 has the same substantially “U” shape in cross section in the short direction at any position in the longitudinal direction of the member 30. Between the first plate-like piece portion 31 and the second plate-like piece portion 32, an accommodating portion 34 into which the solar cell panel BP is inserted is defined. Then, in the short side direction of the buffer member 30, an opening 35 that allows the solar cell panel BP to be inserted is provided on the opposite side of the support piece portion 33 across the housing portion 34 along the longitudinal direction of the buffer member 30. Is formed.

  Therefore, when the outer peripheral end 10 of the solar cell panel BP is inserted into the accommodating portion 34 through the opening 35 and the buffer member 30 is attached to the solar cell panel BP, as shown in FIG. The part 33 faces the end surface of the panel BP. Moreover, the 1st plate-shaped piece part 31 opposes the surface 11 of this panel BP, and the 2nd plate-shaped piece part 32 opposes the back surface 12 of this panel BP. When the frame body F is attached to the outer peripheral end portion 10 to which the buffer member 30 of the solar cell panel BP is attached, the buffer member 30 is interposed between the panel housing portion 34 of the frame body F and the solar cell panel BP. The solar cell module BP is assembled by being inserted. Such a buffer member of the solar cell module is disclosed in Patent Document 1, for example.

JP 2000-114570 A

  Incidentally, as described above, the buffer member 30 in the conventional solar cell module BM is a molded member made of synthetic resin or rubber having flexibility and elasticity, and the environment (temperature, humidity, external force) during storage and transportation. Etc.). In particular, since the cushioning member 30 is softened as a whole when exposed to a high temperature state, it warps the first plate-like piece portion 31 and the second plate-like piece portion 32 formed in a cantilever manner with respect to the support piece portion 33. In some cases, bending deformation is likely to occur, and the plate-like piece portions 31 and 32 may fall to the accommodating portion 34 side, and the opening width S of the opening portion 35 may be narrowed (FIG. 15). When the buffer member 30 is deformed as described above, the end portions on the opening 35 side of the first plate-like piece portion 31 and the second plate-like piece portion 32 are gripped and deformed to the outside. The buffer member 30 must be attached to the solar cell panel BP while the opening width S is enlarged. Therefore, there has been a problem that the mounting operation of the buffer member 30 to the solar battery panel BP cannot be performed easily and efficiently. In addition, in the buffer member in which the protruding seal portion protrudes inside the first plate-like piece portion 31 and the second plate-like piece portion 32, the first plate-like piece portion 31 and the second plate-like piece portion 32 are slightly deformed. However, the solar cell panel BP comes into contact with the protrusion seal portion 36, and the workability of the mounting work is significantly reduced.

  On the other hand, the conventional buffer member 30 has a substantially “U” cross-sectional shape in the short side direction, and therefore, as shown in FIG. When inserted into the panel housing portion 21, the support piece portion 33 comes into contact with the contact receiving surface 22 located on the back side in the insertion direction of the panel housing portion 21. In other words, the conventional buffer member 30 does not have a shape that defines a gap between the outer peripheral end portion 10 of the solar cell panel BP and the contact receiving surface 22 of the panel housing portion 21. Therefore, if the thermal expansion coefficient of the solar cell panel BP is larger than the thermal expansion coefficient of the frame F, the thermal expansion of the solar cell panel BP is not absorbed, and in some cases, the solar cell panel BP may be loaded. It was. Further, when a structure is formed in which a gap is appropriately defined between the buffer member 30 and the contact receiving surface 22 in consideration of thermal expansion of the solar battery panel BP, the buffer member 30 moves within the panel housing portion 21. Can do. For this reason, there also exists the subject which cannot hold | maintain the frame F without shakiness with respect to the solar cell panel BP.

  Therefore, in order to solve the above-described problems, the present invention has an object to provide a buffer member for a solar cell module configured to simplify and improve the efficiency of mounting the buffer member on the outer peripheral end of the solar cell panel. To do.

In order to solve the above-mentioned problems and achieve the intended purpose, the invention according to claim 1 of the present application provides:
In the buffer member inserted between the outer peripheral end of the plate-like solar cell panel and the frame attached to the outer peripheral end,
A pair of plate-like pieces disposed opposite to each other;
A support that is located between the pair of plate-like pieces and is connected to an intermediate portion of the plate-like pieces and that defines a housing portion that can house the solar cell panel between the pair of plate-like pieces. One part,
There is a fragile portion that is provided at an intermediate portion of the support piece portion and is displaced by clamping in a direction in which the operation portions extending to the opposite side of the housing portion with the support piece portion in the plate-like piece portion sandwiching each other. , Integrally formed,
At least one of the pair of plate-like pieces is displaced in the direction of opening the housing portion by deforming the support piece at the weak portion by clamping the operation portion in a direction close to each other. It is characterized by having comprised as follows.

  Therefore, according to the first aspect of the present invention, the support piece is deformed and the posture of at least one plate-like piece is displaced by operating the operation portion located on the side opposite to the housing portion in proximity. The housing portion can be easily opened. Therefore, since the buffer member can be mounted on the outer peripheral end of the solar cell panel with the housing portion of the buffer member opened, the buffer member can be easily mounted on the solar cell panel.

According to a second aspect of the present invention, due to the displacement of the posture of the pair of plate-like piece portions due to the deformation of the support piece portion, the opening size in the separating direction of both plate-like piece portions in the housing portion is The gist is that it is larger than the thickness.
Therefore, according to the invention which concerns on Claim 2, since the accommodating part opens larger than the thickness of a solar cell panel by pinching the operation part of a plate-shaped piece part close, the mounting | wearing operation | work of the buffer member with respect to a solar cell panel Can be simplified and improved in efficiency.

According to a third aspect of the present invention, the displacement of the pair of plate-like piece portions located between the operation portions is connected to the operation portion, and the posture displacement of the plate-like piece portions in the closing direction is restricted. The gist of the present invention is to have a holding piece portion.
Therefore, according to the third aspect of the invention, since each plate-like piece is held in the posture by the holding piece, the plate-like piece can be displaced so that the opening width of the accommodating portion becomes narrow. Can be prevented.

According to a fourth aspect of the present invention, the holding piece portion is formed so as to be displaceable with respect to the plate-like piece portion, and elastically comes into contact with a contact receiving surface located on the back side in the panel insertion direction of the frame body. This is the gist.
Therefore, according to the invention which concerns on Claim 4, the shakiness of this solar cell panel and a frame can be prevented in the insertion direction of the solar cell panel with respect to a frame.

The gist of the invention described in claim 5 is that a reinforcing member harder than the main body of the plate-like piece portion is embedded in the plate-like piece portion.
Therefore, according to the invention which concerns on Claim 5, the curvature and bending deformation | transformation of each plate-shaped piece part itself can be prevented with a reinforcement member.

The invention according to claim 6 is an elastic material in which the contact surface of each plate-like piece portion with the solar cell panel and the contact surface of the support piece portion with the solar cell panel are made of a polymer compound. The gist is that the body is formed.
Therefore, according to the invention which concerns on Claim 6, the adhesiveness of the contact part of a solar cell panel and a buffer member can be improved, and the sealing performance of the buffer member with respect to a solar cell panel can be expressed.

  According to the buffer member of the solar cell module according to the present invention, it is possible to simplify and improve the efficiency of mounting the buffer member on the outer peripheral end of the solar cell panel.

It is a perspective view which shows the state which mounts | wears with the buffer member which concerns on the Example of this invention in the outer peripheral edge part of a solar cell panel, partially fractured | ruptures a solar cell panel. It is the II-II sectional view taken on the line of FIG. It is a fragmentary perspective view which abbreviate | omits a solar cell panel and shows the A section in FIG. It is explanatory sectional drawing which shows the state which mounts | wears with the buffer member of an Example at the outer peripheral edge part of a solar cell panel, clamping the operation part and expanding the opening width of a accommodating part. It is explanatory sectional drawing which shows the state which matched the solar cell panel which mounted | wore the buffer member in the outer peripheral edge part with the opening part of the panel accommodating part in a frame. It is a fragmentary sectional view of the solar cell module which inserted the buffer member of the example between the solar cell panel and the frame attached to the outer peripheral edge of the solar cell panel. It is sectional drawing which fractures | ruptures and shows the buffer member which concerns on the example 1 of a change in the transversal direction. It is sectional drawing which fractures | ruptures and shows the buffer member which concerns on the example 2 of a change in the transversal direction. It is sectional drawing which fractures | ruptures and shows the buffer member which concerns on the modification 3 in the transversal direction. It is sectional drawing which fractures | ruptures and shows the buffer member which concerns on the example 4 of a change in the transversal direction. It is sectional drawing which fractures | ruptures and shows the buffer member which concerns on the modification 5 in the transversal direction. It is sectional drawing which fractures | ruptures and shows the buffer member which concerns on the modification 6 in the transversal direction. It is a perspective view which shows the solar cell panel which equipped with the conventional buffer member partially fractured | ruptured. It is the YY sectional view taken on the line of FIG. It is explanatory drawing which shows that a buffer member deform | transforms so that the opening width of an opening part may become smaller than the thickness of a solar cell panel. It is a fragmentary sectional view of the solar cell module which inserted the conventional buffer member between the solar cell panel and the frame with which the outer periphery edge part of this solar cell panel was equipped.

  Next, preferred embodiments of the buffer member of the solar cell module according to the present invention will be described below with reference to the accompanying drawings. The solar cell panel BP and the frame body F that constitute the solar cell module BM are not changed from the conventional ones. Therefore, the detailed description regarding the structure etc. of the solar cell panel BP and the frame F is omitted, and the same members and parts as those already described in FIGS. In the embodiment, as shown in FIG. 1, in each buffer member 40, the end surface longitudinal direction at the outer peripheral end 10 of the solar cell panel BP is defined as the “longitudinal direction” of the buffer member 30, and the longitudinal direction and the solar cell panel BP. The direction perpendicular to the outer surface direction is referred to as the “short direction” of the buffer member, and the direction perpendicular to the longitudinal direction and the thickness D direction of the solar cell panel BP is referred to as the “width direction” of the buffer member. In addition, in FIG. 1, the longitudinal direction, the transversal direction, and the width direction in the buffer member 40 with which the outer peripheral edge part 10 of the near right side in the solar cell panel BP was mounted | worn are shown.

  FIG. 1 is a perspective view showing a state in which the buffer member 40 according to the embodiment is mounted on the outer peripheral end portion 10 of the solar cell panel BP, with the solar cell panel BP partially broken, and FIG. It is II-II sectional view taken on the line. The buffer member 40 of the embodiment is a molded member formed of an elastic body made of a polymer compound described later, and the cross-sectional shape in the short side direction is the same in any part in the longitudinal direction. The buffer member 40 is positioned between a pair of the first plate-like piece portion 41 and the second plate-like piece portion 42 that are opposed to each other, and between the first plate-like piece portion 41 and the second plate-like piece portion 42. And a support piece 43 connected to an intermediate portion between the two plate-like pieces 41 and 42. The buffer member 40 includes a holding piece portion 44 that is located between the first plate-like piece portion 41 and the second plate-like piece portion 42 and is connected to the edge portions of both the plate-like piece portions 41 and 42. ing. That is, the first plate-like piece portion 41, the second plate-like piece portion 42, and the support piece portion 43 define an accommodation portion 45 that can accommodate the outer peripheral end portion 10 of the solar cell panel BP. The holding piece portion 44 is located on the opposite side of the housing portion 45 across the gap. Therefore, as shown in FIG. 2, the buffer member 40 of the embodiment has a substantially “A” cross-sectional shape in the short direction.

  As shown in FIGS. 1 and 2, the support piece portion 43 has a length in the longitudinal direction substantially the same as a side length of the outer peripheral end portion 10 of the solar cell panel BP, and a width in the short side direction of the panel BP. It is substantially the same as the thickness D. And in the intermediate part in the width direction of the support piece part 43, as shown in FIGS. 1-3, the weakness extended to a longitudinal direction along the 1st plate-like piece part 41 and the 2nd plate-like piece part 42 A portion 47 is formed. Thereby, the cross-sectional shape in the short direction of the support piece portion 43 is a substantially “<” shape in which the intermediate portion in the width direction is displaced toward the accommodating portion 45 side. Therefore, when each of the operation pieces 41B and 42B described later of the first plate-like piece portion 41 and the second plate-like piece portion 42 is sandwiched so as to be close to each other, stress concentrates on the fragile portion 47 and the support piece portion 43 is The fragile portion 47 is bent and bent. As a result, the first plate-like piece portion 41 and the second plate-like piece portion 42 are arranged so that the contact pieces 41A and 42A are separated from each other with the fragile portion 47 as a starting point (so that the opening 46 is enlarged). It is permissible to change the posture. In addition, when the contact pieces 41A and 42A of the first plate-like piece portion 41 and the second plate-like piece portion 42 are pushed away from each other in the width direction by the solar cell panel BP inserted into the housing portion 44, the support pieces 41A and 42A are supported. The piece 43 can be deformed in an extensible manner from a substantially “<” shape to a substantially “I” shape.

  In FIG. 2, the first plate-like piece portion 41 connected to the upper edge of the support piece portion 43 includes an abutment piece 41 </ b> A that forms a wall of the housing portion 45, and a corresponding piece 41 </ b> A across the support piece portion 43. It has an operation piece (operation part) 41B extending in the opposite direction, and has an overall flat plate shape. In the first plate-like piece portion 41, when the outer peripheral end portion 10 of the solar cell panel BP is inserted into the accommodating portion 45, the contact piece 41A extends to the surface 11 side of the panel BP, and the operation piece 41B is the solar cell panel. It extends outward from the end face of the BP (FIG. 2). And in the connection site | part 43A of the 1st plate-shaped piece part 41 and the support piece part 43, the corner part of this support piece part 43 and the operation piece 41B is piled up in the shape of a concave curved surface. Therefore, the overall posture displacement of the first support piece 41 with the connection site 43A as a base point is less likely to appear with respect to the support piece 43.

  In FIG. 2, the second plate-like piece portion 42 connected to the lower edge of the support piece portion 43 is formed symmetrically with the first plate-like piece portion 41 in the width direction. That is, the second plate-like piece portion 42 includes a contact piece 42A that forms a wall of the housing portion 45, and an operation piece (operation portion) 42B that extends opposite to the contact piece 42A across the support piece portion 43. And has a flat plate shape as a whole. When the outer peripheral end 10 of the solar cell panel BP is inserted into the accommodating portion 45, the second plate-like piece 42 extends to the back surface 12 side of the panel BP, and the operation piece 42B is the solar cell panel. It extends outward from the end face of the BP (FIG. 2). And in the connection part 43B of the 2nd plate-shaped piece part 42 and the support piece part 43, the corner | angular part of this support piece part 43 and the operation piece 42B is piled up in the shape of a concave curved surface. Therefore, the overall posture displacement of the second support piece portion 42 with the connection site 43 </ b> B as the base point is less likely to appear with respect to the support piece portion 43.

  The holding piece 44 is separated from the edge of the operation piece 41B of the first plate-like piece 41 on the side separated from the support piece 43, and from the support piece 43 of the operation piece 41B of the second plate-like piece 42. The support piece portions 43 are connected to the side edges, respectively, and extend in the longitudinal direction at an appropriate interval from the support piece portion 43. The holding piece portion 44 restricts the first plate-like piece portion 41 from being displaced in the narrow direction of the opening portion 46 with the weak portion 47 of the support piece portion 43 as a base point, and also has the weak portion 47 as a base point. The two plate-like pieces 42 are prevented from being displaced in the narrowing direction of the opening 46. Then, as will be described later and as shown in FIG. 7, the holding piece portion 44 is inserted into the panel housing portion 21 of the frame F when the solar cell panel BP with the buffer member 40 attached to the outer peripheral end portion 10 is inserted. The panel receiving portion 21 can be elastically contacted with the contact receiving surface 22 located on the back side in the panel insertion direction.

  As shown in FIGS. 1 to 3, at the intermediate portion in the width direction of the holding piece portion 44, a bent portion that extends in the longitudinal direction along the first plate-like piece portion 41 and the second plate-like piece portion 42. 50 is formed. Therefore, the cross-sectional shape of the holding piece portion 44 in the short direction is a substantially “<” shape in which the intermediate portion in the width direction is displaced in a direction away from the support piece portion 43. And if each operation piece 41B of the 1st plate-shaped piece part 41 and the 2nd plate-shaped piece part 42 are clamped so that it may adjoin, the holding piece part 44 will be bent in the bending part 50. FIG. Accordingly, the first plate-like piece portion 41 and the second plate-like piece portion 42 are separated from each other with the contact pieces 41A and 42A being separated from each other with the fragile portion 47 of the support piece portion 43 as a base point (the opening 46 is enlarged). A) It is allowed to change the posture as a whole. Further, when the contact pieces 41A and 42A of the first plate-like piece portion 41 and the second plate-like piece portion 42 are clamped so as to be close to each other, the holding piece portion 44 is changed from a substantially “<” shape to a substantially “I” shape. Deformally deformed. As a result, the first plate-like piece portion 41 and the second plate-like piece portion 42 are brought close to each other with the contact pieces 41A and 42A approaching from the fragile portion 47 of the support piece portion 43 (the opening 46 is narrowed). A) It is allowed to change the posture as a whole.

  The first plate-like piece portion 41 and the second plate-like piece portion 42 held in the posture by the holding piece portion 44 are in a normal state in which the operation pieces 41B and 42B are not sandwiched as indicated by a two-dot chain line in FIG. Then, the opening width S1 of the opening 46 in the separating direction (width direction) of the two plate-like pieces 41 and 42 is smaller than the thickness D of the solar cell panel BP. Then, when the operation pieces 41B and 42B of the first plate-like piece portion 41 and the second plate-like piece portion 42 are sandwiched so as to approach each other, the two plate-like piece portions 41 and 42 are based on the weakened portion 47 of the support piece portion 43. As described above, the opening width S1 of the opening 46 becomes larger than the thickness D of the solar cell panel BP. Therefore, the buffer member 40 according to the embodiment can easily be connected to the outer peripheral end portion 10 of the solar cell panel BP by sandwiching the operation pieces 41B and 42B of the first plate-like piece portion 41 and the second plate-like piece portion 42. It becomes possible to install.

  In the buffer member 40 of the embodiment, as shown in FIGS. 2 and 3, a thin plate-like reinforcing plate (reinforcing member) 51 is embedded in the first plate-like piece portion 41 and the second plate-like piece portion 42. Has been. The reinforcing plate 51 has a thickness of about 0.1 to 0.5 mm (preferably about 0.3 mm) and is made of a metal having a spring property made of stainless steel or aluminum. The first plate The size is slightly smaller than the main body of the plate-like piece portion 41 and the second plate-like piece portion 42. Therefore, the first plate-like piece portion 41 and the second plate-like piece portion 42 are less likely to be deformed in both the longitudinal direction and the short-side direction because the reinforcing plate 51 is embedded, The posture is displaced as a whole with the connection parts 43A and 43B of the piece 43 as the base point. The reinforcing plate 51 is embedded in the first plate-like piece portion 41 and the second plate-like piece portion 42 when the buffer member 40 is extruded.

  Further, as shown in FIG. 2, the buffer member 40 of the embodiment has a contact surface of the contact piece 41 </ b> A of the first plate-like piece portion 41 with the solar cell panel BP and a contact between the second plate-like piece portion 42. The contact surface of the contact piece 41A with the solar battery panel BP and the contact surface of the support piece portion 43 with the panel BP are formed of the first elastic body P1 made of a soft polymer compound. Further, the surface of the holding piece 44 that contacts the contact receiving surface 22 is also formed of the first elastic body P1 made of the first polymer compound. Therefore, the adhesion between the solar cell panel BP and the buffer member 40 can be improved. On the other hand, the contact surface of the contact piece 41A of the first plate-like piece portion 41 with the frame F, the operation piece 41B of the first plate-like piece portion 41, and the contact piece 41A of the second plate-like piece portion 42. The contact surface with the frame body F, the operation piece 41B of the second plate-like piece portion 42, the holding piece portion 44 side of the supporting piece portion 43, and the supporting piece portion 43 side of the holding piece portion 44 are The second elastic body P2 is made of a polymer compound 2 and is harder than the first elastic body P1. Here, the first elastic body P1 has a Shore A hardness defined by JIS K6253 of 80A or less in consideration of adhesion to the solar battery panel BP, compression set, etc., and is not limited to a solid. A sponge may be used. The second elastic body P2 preferably has a Shore A hardness of 70A or more as defined in JIS K6253 in consideration of the rigidity and shape retention of the buffer member 40.

  As a specific example, a thermoplastic elastomer “Sarlink 5775B4” (hardness 75A) manufactured by DSM is used as the second elastic body P2, and EPDM rubber particles dynamically cross-linked to a polypropylene matrix are used as the first elastic body P1. For example, a finely dispersed dynamic cross-linked thermoplastic elastomer “Sarlink 5735B4” (hardness 35A) may be used. A combination of “Santoprene 123-40” (hardness 40D) manufactured by AES Japan and a “Santoprene 121-58W175” (hardness 58A) as the first elastic body P1 is also suitable as the second elastic body P2.

  In the buffer member 40 of the above embodiment configured as described above, the first plate-like piece portion 41, the second plate-like piece portion 42, the support piece portion 43, and the holding piece portion 44 are hard second elastic bodies P2. The reinforcing plate 51 is embedded in the first plate-like piece portion 41 and the second plate-like piece portion 42, respectively. Therefore, in the buffer member 40 of the embodiment, the first plate-like piece portion 41 and the second plate-like piece portion 42 held in the posture by the holding piece portion 44 are less likely to be warped or deformed. Thereby, even if the buffer member 40 of an Example is exposed to a high temperature state at the time of storage or transportation, it is hold | maintained at the shape at the time of shaping | molding shown by the dashed-two dotted line in FIG.

  And when attaching the buffer member 40 of the example to the outer peripheral end 10 of the solar cell panel BP, as shown in FIGS. 1 and 4, the operation pieces 41B, 42B of the plate-like pieces 41, 42 are provided. Hold it close. As a result, the first plate-like piece portion 41 and the second plate-like piece portion 42 are displaced in their overall posture with the fragile portion 47 as a base point due to the bending deformation of the support piece portion 43, so that the opening of the opening 46 is opened. The width S1 is larger than the thickness D of the panel BP. Therefore, the outer peripheral end portion 10 of the solar cell panel BP can be easily inserted into the accommodating portion 45 of the buffer member 40, and the mounting operation of the buffer member 40 to the solar cell panel BP can be performed very simply and efficiently. In particular, since it is not necessary to hold the opening ends 41C, 42C on the opening 46 side of both plate-like pieces 41, 42 with the fingertips, the fingertips may be caught when the buffer member 40 is mounted on the solar cell panel BP. Absent. And each buffer member 40 with which each 4 outer periphery edge part 10 of solar cell panel BP was attached is bonded or bonded together with an edge part with adjacent buffer member 40, or it connects with another connection member, Joined in a rectangular frame shape. Accordingly, the buffer members 40 joined to each other do not fall off from the solar cell panel BP.

  Next, as shown in FIGS. 5 and 6, the frame body F is attached to the outer peripheral end portion 10 of the solar cell panel BP to which the buffer member 40 is attached. First, the holding piece portion 44 side of the buffer member 40 is aligned with the panel housing portion 21 of the frame F (FIG. 5), and the solar cell panel BP is pressed against the frame F side. Then, as the solar battery panel BP is inserted into the panel accommodating portion 21, the contact pieces 41A and 42A side of both plate-like piece portions 41 and 42 are sandwiched in the closing direction. The holding piece 44 is deformed in an extensible manner. When the solar cell panel BP is inserted to a predetermined position with respect to the panel housing portion 21 of the frame F, the first plate-like piece portion 41 of the buffer member 40 has the surface 11 of the solar cell panel BP and the panel housing portion 21. The second plate-like piece portion 42 is sandwiched between the side wall 23 and the back surface 12 of the solar cell panel BP and the sidewall 23 of the panel housing portion 21. Further, the holding piece portion 44 is in a state of elastically contacting the contact receiving surface 22 of the panel housing portion 21 (FIG. 6). And since the support piece part 43 and the holding piece part 44 are spaced apart in the short direction, an appropriate gap is formed between the outer peripheral end part 10 of the solar cell panel BP and the contact receiving surface 22 of the frame F. It is made.

In the buffer member 40 of the solar cell module BM of such an example, there exist the following effects.
(1) Since the first plate-like piece portion 41 and the second plate-like piece portion 42 themselves are not easily deformed, and both the plate-like piece portions 41 and 42 are held by the holding piece portion 44, they can be stored or transported. Even if the buffer member 40 is sometimes exposed to a high temperature state, the cushioning member 40 is held in the shape during molding.
(2) The support piece 43 is deformed by sandwiching the operation pieces 41B and 42B of the plate-like pieces 41 and 42 so as to approach each other, and the opening width S1 of the opening 46 in the accommodating portion 45 is the thickness of the panel BP. Since it becomes larger than D, the mounting | wearing operation | work of the buffer member 40 with respect to the solar cell panel BP can be performed very simply. Moreover, since it is not necessary to hold the opening ends 41C, 42C of the both plate-like pieces 41, 42 on the opening 46 side with the fingertips, when the buffer member 40 is attached to the solar cell panel BP, the fingertips are the outer peripheral end portions. 10 is not caught.
(3) When the clamping operation for the operation pieces 41B and 42B of the plate-like piece portions 41 and 42 is canceled, the opening width S1 of the opening portion 46 is deformed to be smaller than the thickness D of the panel BP. Therefore, after inserting the outer peripheral end portion 10 of the solar cell panel BP into the accommodating portion 45, the solar cell panel BP can be gripped from the front and back by the plate-like piece portions 41 and 42. Thereby, the buffer member 40 attached to the solar cell panel BP is difficult to drop off from the solar cell panel BP.
(4) When the solar cell panel BP is inserted into the panel housing portion 21 of the frame F, the first plate-like piece portion 41 of the buffer member 40 is displaced in its entirety and the surface 11 of the solar cell panel BP. In close contact. Further, the second plate-like piece portion 42 is displaced in its entirety and is in close contact with the back surface 12 of the solar cell panel BP. Therefore, it is possible to prevent rainwater and dust from entering between the buffer member 40 and the solar battery panel BP.
(5) Since the holding piece 44 is elastically in contact with the contact receiving surface 22 of the panel housing part 21 in the frame F, in the panel insertion direction to the panel housing part 21 (short direction of the buffer member 40). The solar cell panel BP and the frame body F are stably held, and rattling does not occur between the frame body F and the solar cell panel BP in the panel insertion direction.
(6) Since the support piece 43 and the holding piece 44 are spaced apart in the short direction, there is an appropriate gap between the outer peripheral end 10 of the solar cell panel BP and the contact receiving surface 22 of the frame F. It is defined. Therefore, when the solar cell panel BP is thermally expanded in the outer peripheral direction, the holding piece portion 44 is further elastically deformed by pressing the buffer member 40 toward the abutment receiving surface 22 side, and the support piece portion 43. Is allowed to be displaced toward the contact receiving surface 22 side. Thereby, even if the thermal expansion coefficient of the solar cell panel BP is larger than the thermal expansion coefficient of the frame F, the thermal expansion of the solar cell panel BP is favorably absorbed, and damage to the solar cell panel BP can be prevented.
(7) Since the contact surface of the buffer member 40 that contacts the solar cell panel BP is formed of the first elastic body P made of a soft polymer compound, the contact portion between the solar cell panel BP and the buffer member 40 Adhesion is improved and sealability can be expressed.

(Modification 1)
FIG. 7 is an explanatory cross-sectional view showing the shock-absorbing member 55 according to Modification 1 in a state where the shock-absorbing member 55 is broken in the short-side direction. The cushioning member 55 of the first modification is based on the cushioning member 40 of the above embodiment, and a groove extending in the longitudinal direction is formed at an intermediate portion in the width direction of the support piece 43, thereby the support piece 43. A thin fragile portion 47 extending in the longitudinal direction is provided at an intermediate portion in the width direction. Therefore, when the operation pieces 41B and 42B are sandwiched, stress concentrates on the weakened portion 57, so that the support piece portion 43 is bent. Thereby, the whole attitude | position displacement centering on the weak part 47 of the 1st plate-shaped piece part 41 and the 2nd plate-shaped piece part 42 is expressed easily.

(Modification 2)
FIG. 8 is an explanatory cross-sectional view showing the shock-absorbing member 56 according to Modification 2 in a state where the shock-absorbing member 56 is broken in the short-side direction. The shock absorbing member 56 of the second modification is based on the shock absorbing member 40 of the above embodiment, and an intermediate portion in the width direction of the support piece portion 43 is formed by the soft first elastic body P1 extending in the longitudinal direction. A fragile portion 47 extending in the longitudinal direction is provided at an intermediate portion in the width direction of the piece portion 43. Therefore, when the operation pieces 41B and 42B are sandwiched, stress concentrates on the fragile portion 57 and the fragile portion 57 is deformed, so that the support piece portion 43 is bent. Thereby, the whole attitude | position displacement centering on the weak part 47 of the 1st plate-shaped piece part 41 and the 2nd plate-shaped piece part 42 is expressed easily.

(Modification 3)
FIG. 9 is an explanatory cross-sectional view showing the shock-absorbing member 57 according to Modification 3 in a state where the shock-absorbing member 57 is broken in the short-side direction. The buffer member 57 of the second modification is based on the buffer member 40 of the above embodiment, and the holding piece 44 is eliminated. Even when the operation piece 41B, 42B is sandwiched, even if the holding piece portion 44 is not provided in this way, the support piece portion 43 is bent at the fragile portion 47, and the first plate-like piece portion 41 is bent. And the whole attitude | position displacement centering on this weak part 47 of the 2nd plate-shaped piece part 42 is expressed easily. In addition, the posture displacement of the 1st plate-shaped piece part 41 and the 2nd plate-shaped piece part 42 is easy to be expressed rather than the case where the holding piece part 44 exists. In the third modification, the reinforcing plate 51 as the reinforcing member may not have a spring property.

(Modification 4)
FIG. 10 is an explanatory cross-sectional view showing the cushioning member 58 according to Modification 4 in a state where the cushioning member 58 is broken in the lateral direction. The buffer member 58 of the fourth modification is based on the buffer member 40 of the above embodiment, and the first plate-like piece portion 41, the second plate-like piece portion 42, the support piece portion 43, and the holding piece portion 44 are soft first. The elastic plate P1 is formed, and a reinforcing plate 51 as a reinforcing member is embedded over the first plate-like piece portion 41, the holding piece portion 44, and the second plate-like piece portion 42. In such a configuration, the first plate-like piece portion 41 and the second plate-like piece portion 42 are held in posture by the reinforcing plate 51 and the plate-like piece portions 41 and 42 themselves are also prevented from being deformed. The member 40 is held in the shape at the time of molding. And the contact surface with the frame F in the contact piece 41A of the first plate-like piece portion 41, the contact surface with the frame body F in the contact piece 41A of the second plate-like piece portion 42, and the holding piece Since the contact surface of the portion 44 with the frame body F is formed of the soft first elastic body P1, the adhesion between the buffer member 40 and the frame body F is also improved.

(Modification 5)
FIG. 11 is an explanatory cross-sectional view showing the cushioning member 59 according to Modification 5 in a state where the cushioning member 59 is broken in the short-side direction. The buffer member 59 of the modified example 5 has a configuration excluding the reinforcing plate 51 on the basis of the buffer member 40 of the above-described embodiment. That is, the contact surface of the contact piece 41A of the first plate-like piece portion 41 with the frame body F, the contact surface of the contact piece 41A of the second plate-like piece portion 42 with the frame member F, and the support piece By adopting a hard second elastic body P2 that forms the side of the portion 43 that does not contact the solar cell panel BP, a harder one than the second elastic body P2 of the embodiment, the first plate without the reinforcing plate 51 is used. Deformation of the plate-like piece portion 41 and the second plate-like piece portion 42 can be prevented. Even in the buffer member 59 of the fifth modified example, the weakened portion 47 of the support piece 43 is obtained by sandwiching the operation pieces 41B and 42B of the first plate piece 41 and the second plate piece 42. The overall posture displacement of the first plate-like piece portion 41 with the base point as the starting point and the overall posture displacement of the second plate-like piece portion 42 with the weakened portion 47 as the base point are possible.

(Modification 6)
FIG. 12 is an explanatory cross-sectional view showing the shock-absorbing member 60 according to Modification 6 in a state where the shock-absorbing member 60 is broken in the short-side direction. The locking member 60 of the modified example 6 is based on the buffer member 40 of the above embodiment, and in the normal state in which the operation pieces 41B, 42B of the plate-like piece portions 41, 42 are not sandwiched, the first plate-like piece portion 41 and The second plate-like piece portion 42 is inclined so as to approach each other as it goes from the operation pieces 41B and 42B toward the contact pieces 41A and 42A. In such a form, when the buffer member 58 is mounted on the outer peripheral end portion 10 of the solar cell panel BP, the clamping force to the solar cell panel BP due to the return elasticity of the two plate-like pieces 41 and 42 increases, and the buffering is performed. There is an advantage that the member 58 can be prevented from falling off.

Furthermore, the buffer member of the solar cell module of the present application may be in a form other than those exemplified in the above-described embodiments and each modified example.
(1) When the holding pieces 41B and 42B are gripped, only one of the first plate-like piece portion 41 and the second plate-like piece portion 42 is displaced in posture by deformation of the support piece portion 43. In this way, the other plate-like piece portion may be configured not to be displaced in posture and to close the accommodating portion 45 side by both plate-like piece portions 41 and 42.
(2) The first plate-like piece portion 41 and the second plate-like piece portion 42 are entirely based on the connection portions 43A and 43B with the support piece portion 43 by sandwiching the operation pieces 41B and 42B in directions close to each other. The posture may be displaced. In the case where the buffer member 40 is configured in this way, each of the plate-like piece portions 41 is formed by bending the support piece portion 43 at the fragile portion 47 by sandwiching the operation pieces 41B and 42B in the directions close to each other. 42, and the plate-like piece portions 41, 42 are entirely displaced with respect to the support piece 43, so that the opening width S of the opening 46 can be increased.
(3) The connecting position between the holding piece 44 and the first plate-like piece 41 and the connecting position between the holding piece 44 and the second plate-like piece 42 are the end portions of the two plate-like pieces 41 and 42. It is good also as a position displaced to the support piece part 43 side more.
(4) A seal member may be attached to the end face of the outer peripheral end portion 10 of the solar cell panel BP or a sealing process may be performed so that the seal portion contacts the support piece portion 43. If such a sealing member is mounted, even if rainwater enters between the solar cell panel BP and the first plate-like piece portion 41 or between the panel BP and the second plate-like piece portion 42, the rainwater Can be prevented from entering the solar cell panel BP from the end face. When the sealing process is performed in this manner, it is not necessary to stop the water with the buffer member 40 of the present application, and therefore it is not necessary to attach the impact member 40 to the entire circumference of the solar cell panel BP.
(5) The 1st plate-shaped piece part 41 and the 2nd plate-shaped piece part 42 do not need to be a symmetrical shape in the width direction and / or a transversal direction.
(6) On the outer surface of the first plate-like piece portion 41 and the second plate-like piece portion 42 that are in contact with the frame body F, a coating layer made of a material having good slidability is laminated so that the buffer member 40 is the frame body F. It may be configured to be easily inserted into the panel housing portion 21. In this case, the coating layers are laminated at the same time as the first plate-like piece portion 41 and the second plate-like piece portion 42 are formed, or formed by a coating process in a later step.
(7) An elastic plate member made of sponge or the like may be disposed in the opening of the panel housing portion 21 in the frame F. In this case, since the buffer member 40 contacts the elastic plate member, an improvement in the buffer performance can be expected.
(8) A butyl sealing material or a silicone sealing material may be placed in the accommodating portion 45. In this case, the solar cell panel BP is inserted into the housing portion 45 so that the sealing material covers the outer peripheral end surface of the panel BP, and rainwater is prevented from entering the panel BP from the outer peripheral end surface. be able to.
(9) On the contact surface side of the first plate-like piece portion 41 and the second plate-like piece portion 42 with the solar cell panel BP, a protrusion seal portion extending in the longitudinal direction of the plate-like piece portions 41, 42 is provided. You may project. In this case, the protrusion seal portion strongly contacts the front surface 11 and the back surface 12 of the solar cell panel BP, thereby forming a water stop line and preventing rainwater from entering due to capillary action.
(10) The reinforcing member 51 is not limited to a metal plate member, and may be a plate member made of synthetic resin such as polyethylene or polypropylene.
(11) The first elastic body P1 is not limited to an elastic body made of a polymer compound, and may be a gel body or the like. In the 1st elastic body P1 which consists of a gel body, since it tracks also to the slight deformation | transformation of the solar cell panel BP, adhesiveness improves and it can aim at the improvement of sealing performance.

10 outer peripheral end, 22 contact receiving surface, 41 first plate-like piece, 41B operation piece (operation part)
42 2nd plate-shaped piece part, 42B Operation piece (operation part), 43 Support piece part, 44 Holding piece part 45 Storage part, 47 Fragile part, 51 Reinforcement plate (reinforcement member), BP Solar cell panel D Thickness (solar cell) Panel), F frame, P1 first elastic body (child elastic body)
S1 opening width

Claims (6)

In the buffer member inserted between the outer peripheral end of the plate-like solar cell panel and the frame attached to the outer peripheral end,
A pair of plate-like pieces disposed opposite to each other;
A support that is located between the pair of plate-like pieces and is connected to an intermediate portion of the plate-like pieces and that defines a housing portion that can house the solar cell panel between the pair of plate-like pieces. One part,
A fragile portion that is provided at an intermediate portion of the support piece portion and deforms due to the movement in the direction in which the operation portion that extends to the opposite side of the housing portion across the support piece portion in the plate-like piece portion, Integrally formed,
At least one of the plate-like pieces is configured such that the support piece is deformed by the fragile part due to the movement of the operation part in the approaching direction, so that the posture is displaced in the opening direction. A buffer member for the solar cell module.   The opening dimension of the separation direction of both the plate-shaped piece parts in the said accommodating part becomes larger than the thickness of the said solar cell panel by the attitude | position displacement of the said pair of plate-shaped piece parts by deformation | transformation of the said support piece part. Buffer member for solar cell module.   2. A holding piece that is positioned between the operation portions of the pair of plate-like piece portions and connected to the operation portion, and restricts the displacement of the plate-like piece portion in the closing direction of the accommodating portion. Or the buffer member of the solar cell module of 2.   4. The solar cell module according to claim 3, wherein the holding piece portion is formed to be displaceable with respect to the plate-like piece portion, and elastically abuts against a contact receiving surface located on the back side in the panel insertion direction of the frame body. Buffer member.   The buffer member for a solar cell module according to any one of claims 1 to 4, wherein a reinforcing member that is harder than the main body of the plate-like piece portion is embedded in the plate-like piece portion.   The contact surface of each plate-like piece portion with the solar cell panel and the contact surface of the support piece portion with the solar cell panel are formed of an elastic body made of a polymer compound. The buffer member of the solar cell module according to any one of 5.

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