Photovoltaic module safe edge and photovoltaic module

Abstract

The utility model belongs to the technical field of photovoltaic modules, and particularly relates to a photovoltaic module safe edge and a photovoltaic module. The photovoltaic module safe edge comprises a safe edge main body, a bearing part and a buffer part. And the bearing part is arranged on the inner side of the safe edge main body and is used for supporting a laminated piece of the photovoltaic module. The buffering part is located on the outer side of the safe edge body, and a buffering space is defined between the buffering part and the safe edge body. The photovoltaic module safe edge comprises a safe edge body, and a bearing part is arranged on the inner side of the safe edge body and used for supporting a laminated piece. A buffer part is arranged on the outer side of the safe edge main body, a buffer space is defined between the buffer part and the safe edge main body, the buffer part can provide a buffer effect on external force impact, and meanwhile, the buffer space is used for absorbing and dispersing the external force impact, especially in the process of transferring and carrying a photovoltaic module, so that the risks of glass breakage and subfissure of a battery piece are effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of photovoltaic modules, and particularly relates to a photovoltaic module edge protector and a photovoltaic module. BACKGROUND

[0002] Solar photovoltaic power generation technology is based on the photovoltaic effect of a semiconductor interface to directly convert light energy into electrical energy. In order to realize a full-screen design of a light collecting surface without obstruction, the edge protector structure used in the existing scheme has a significantly reduced overall strength due to a reduced amount of material. Especially in the process of transferring and handling the solar photovoltaic module, the solar photovoltaic module is easily impacted by external forces, thereby increasing the risk of glass breakage and cell piece hidden cracking. CONTENT OF THE UTILITY MODEL

[0003] One of the purposes of the present application is to provide a photovoltaic module edge protector. The photovoltaic module edge protector can realize the buffering function of the laminated piece of the photovoltaic module arranged inside the edge protector main body, thereby reducing the risk of glass breakage and cell piece hidden cracking of the photovoltaic module caused by external force impact in the process of handling and transferring.

[0004] Another purpose of the present application is to provide a photovoltaic module, wherein the photovoltaic module comprises the photovoltaic module edge protector.

[0005] According to the embodiments of the present application, the first aspect provides a photovoltaic module edge protector, comprising:

[0006] an edge protector main body;

[0007] a bearing part arranged on the inner side of the edge protector main body and used for bearing a laminated piece;

[0008] a buffering part arranged on the outer side of the edge protector main body, and the buffering part and the edge protector main body define a buffering space.

[0009] In an embodiment, the edge protector main body close to at least one side edge of the laminated piece comprises a first segmented surface, a second segmented surface and a third segmented surface, wherein:

[0010] the first segmented surface and the third segmented surface correspond to one corner of the laminated piece, respectively;

[0011] the second segmented surface is located between the first segmented surface and the third segmented surface, and the distance between the second segmented surface and the laminated piece is smaller than the distance between the first segmented surface and the laminated piece and the distance between the third segmented surface and the laminated piece.

[0012] In an embodiment, the distance between the first segmented surface and the laminated piece and the distance between the third segmented surface and the laminated piece are 1.2 to 2.5 times the distance between the second segmented surface and the laminated piece, respectively.

[0013] In one embodiment, each side of the edge protector body is provided with the buffer portion.

[0014] In one embodiment, the buffer portion extends along the direction from the upper end face to the lower end face of the edge protector body.

[0015] In one embodiment, the side of the buffer portion facing away from the laminate includes a first segment, a second segment, and a third segment, wherein:

[0016] The distance between the first segment and the laminate, and the distance between the third segment and the laminate, are both greater than the distance between the second segment and the laminate.

[0017] In one embodiment, the support portion is provided with air holes.

[0018] In one embodiment, the pores are spaced apart along the support portion and form at least one row.

[0019] In one embodiment, a buffer frame is further provided on the outer side of the photovoltaic module edge protector. The buffer frame is engaged with the side of the photovoltaic module edge protector and is located in the middle of the side of the photovoltaic module edge protector.

[0020] According to an embodiment of this application, a second aspect provides a photovoltaic module, the photovoltaic module including the photovoltaic module edge protector and the laminate.

[0021] The photovoltaic module edge protector of this application includes an edge protector body, with a load-bearing portion on the inner side of the edge protector body for supporting the laminate. A buffer portion is provided on the outer side of the edge protector body, and a buffer space is defined between the buffer portion and the edge protector body. The buffer portion can provide a buffering effect against external impacts, while the buffer space is used to absorb and disperse external impacts, especially during the circulation and handling of photovoltaic modules, thereby effectively reducing the risk of glass breakage and microcracks in the cells caused by external impacts. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the photovoltaic module edge protector in one embodiment of this application;

[0023] Figure 2 for Figure 1 A partial schematic diagram of the cross section at point a in the middle direction;

[0024] Figure 3 for Figure 1 A magnified view of a portion of point A in the middle;

[0025] Figure 4 This is a partial structural diagram of the edge protection of a photovoltaic module in another embodiment of this application.

[0026] Brief Description of the Drawings

[0027] 100, edge protection body; 110, first segment surface; 120, second segment surface; 130, third segment surface;

[0028] 200, bearing part; 210, air hole;

[0029] 300, buffer part; 310, first segment part; 320, second segment part; 330, third segment part;

[0030] 400, buffer space;

[0031] 500, buffer frame; 600, laminate. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0033] It should be noted that the diagrams provided in the present embodiment only illustrate the basic concept of the present application in a schematic manner.

[0034] The orientations or positional relationships indicated by the terms such as "upper", "lower", "left", "right", "intermediate", "vertical", "horizontal", "horizontal", "inner", "outer", "radial", "circumferential" and the like as used in this specification are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0035] As described in the background, in order to realize the full-screen design of the light-collecting surface without obstruction, the edge protection structure used in the existing scheme has significantly reduced overall strength due to reduced material usage. Especially during the transfer and handling process of the solar photovoltaic module, it is easy to be impacted by external force, increasing the risk of glass breakage and cell piece hidden crack. In order to better solve this problem, the researchers in the present application propose a photovoltaic module edge protection, which can provide a buffer function for the laminate of the photovoltaic module arranged inside the edge protection body, thereby reducing the risk of glass breakage and cell piece hidden crack caused by external impact during the handling and transfer process of the photovoltaic module.

[0036] As shown in Figure 1 and 2 , Figure 1This is a schematic diagram of the structure of a photovoltaic module edge protector according to one embodiment of this application. The photovoltaic module edge protector includes an edge protector body 100, a support portion 200, and a buffer portion 300. The support portion 200 is located inside the edge protector body 100 and is used to support the laminate 600 of the photovoltaic module. The buffer portion 300 is located outside the edge protector body 100, and a buffer space 400 is defined between the buffer portion 300 and the edge protector body 100. The buffer portion 300 and the buffer space 400 work together to provide buffer protection for the laminate 600 during the transfer and handling of the photovoltaic module, thereby reducing the risk of glass breakage and microcracks in the solar cells caused by external impact.

[0037] In this embodiment, a bearing portion 200 is provided on the inner side of the edge protector body 100, which is used to support the laminate 600. A buffer portion 300 is provided on the outer side of the edge protector body 100, and a buffer space 400 is defined between the buffer portion 300 and the edge protector body 100, so that the buffer portion 300 can play a buffering role when subjected to external impact.

[0038] When an external force is applied to the buffer section 300, the buffer section 300 absorbs and disperses the impact force through its own structural characteristics. Simultaneously, the buffer space 400 allows the buffer section 300 to deform within a certain range, further reducing the direct impact of external forces on the laminate 600. The synergistic effect of the buffer section 300 and the buffer space 400 effectively reduces the impact of external forces on the photovoltaic module during transfer and handling, thereby reducing the risk of glass breakage and microcracks in the solar cells.

[0039] In one embodiment, see Figure 3 As shown, at least one side of the edge protector 100 near the laminate 600 includes a first segmented surface 110, a second segmented surface 120, and a third segmented surface 130, wherein: the first segmented surface 110 and the third segmented surface 130 respectively correspond to a corner of the laminate 600; the second segmented surface 120 is located between the first segmented surface 110 and the third segmented surface 130, and the distance between the second segmented surface 120 and the laminate 600 is less than the distance between the first segmented surface 110 and the laminate 600 and the distance between the third segmented surface 130 and the laminate 600.

[0040] In the embodiment, the edge protection body 100 forms a segmented surface layout with different intervals on the side edges of the laminate 600, wherein the first segmented surface 110 and the third segmented surface 130 correspond to the corners of the laminate 600 respectively, and the distance between the first segmented surface 110 and the laminate 600 and the distance between the third segmented surface 130 and the laminate 600 are both greater than the distance between the second segmented surface 120 and the laminate 600, forming a structure similar to the letter "S". Through the scheme of the embodiment, a larger interval space is formed between the corners of the laminate 600 and the inside of the edge protection body 100. After filling, for example, ethylene-vinyl acetate copolymer glue (EVA) in the space, the amount of filled EVA glue increases due to the larger filling interval, and then an effective buffer layer is formed after solidification. The EVA glue layer can absorb and disperse external impact force, further improving the impact resistance of the photovoltaic module during handling and circulation. At the same time, the EVA glue layer cooperates with the buffer part 300 and the buffer space 400 to realize multi-level buffer protection of the laminate 600, effectively reducing the risk of glass breakage and cell piece hidden crack in the corner area of the module.

[0041] Further, in an embodiment, the distance between the first segmented surface 110 and the laminate 600 and the distance between the third segmented surface 130 and the laminate 600 are respectively 1.2 to 2.5 times the distance between the second segmented surface 120 and the laminate 600. For example, the distance between the first segmented surface 110 and the laminate 600 and the distance between the third segmented surface 130 and the laminate 600 are respectively 1.2 times, 1.5 times, 1.6 times, 1.8 times, 2.0 times, 2.2 times, 2.4 times or 2.5 times the distance between the second segmented surface 120 and the laminate 600.

[0042] In the embodiment, the distance between the first segmented surface 110 and the laminate 600 and the distance between the third segmented surface 130 and the laminate 600 are respectively set to be 1.2 to 2.5 times the distance between the second segmented surface 120 and the laminate 600. Through this setting, the first segmented surface 110 and the third segmented surface 130 form a larger buffer gap in the corner area of the laminate 600, so that the amount of filled ethylene-vinyl acetate copolymer glue (EVA) increases, thereby forming a thicker buffer layer. The thicker EVA buffer layer can absorb and disperse external force impact after solidification, reduce the direct effect of external force on the laminate 600, and improve the impact resistance of the edge and corner area of the photovoltaic module during handling and circulation.

[0043] In an embodiment, each side edge of the edge protection body 100 is provided with a buffer part 300.

[0044] In the embodiment, the buffer part 300 is arranged on each side of the edge protection body 100, and the buffer part 300 has a buffering capacity in multiple directions of the edge protection body 100. When an external force acts on the buffer part 300, the structural characteristics of the buffer part 300 can absorb and disperse the impact force, and reduce the direct influence of the external force on the edge protection body 100. At the same time, the buffer space 400 defined between the buffer part 300 and the edge protection body 100 further enhances the buffering effect, so that the buffer part 300 can be deformed after being stressed, thereby effectively reducing the influence of the external force directly acting on the laminated piece 600. The synergistic effect of the buffer part 300 and the buffer space 400 enables the photovoltaic module to have better impact resistance during handling and circulation, thereby reducing the risk of glass breakage and cell piece hidden cracking.

[0045] Further, in an embodiment, referring to Figure 2 As shown, the buffer part 300 extends along the upper end surface to the lower end surface direction of the edge protection body 100.

[0046] In the embodiment, the buffer part 300 extends along the upper end surface to the lower end surface direction of the edge protection body 100, so that the buffer part 300 forms a continuous buffering structure in the vertical direction and covers the side of the edge protection body 100. When an external force acts on the corner or side of the photovoltaic module, the buffer part 300 can effectively withstand and disperse the external force impact, reducing the influence of the external force directly transmitted to the edge protection body 100.

[0047] In an embodiment, referring to Figure 3 As shown, the buffer part 300 includes a first segmented part 310, a second segmented part 320, and a third segmented part 330, wherein the distance between the first segmented part 310 and the laminated piece 600 and the distance between the third segmented part 330 and the laminated piece 600 are both greater than the distance between the second segmented part 320 and the laminated piece 600.

[0048] In the embodiment, the side of the buffer part 300 away from the laminated piece 600 is provided with the first segmented part 310, the second segmented part 320, and the third segmented part 330, wherein the distance between the first segmented part 310 and the laminated piece 600 and the distance between the third segmented part 330 and the laminated piece 600 are both greater than the distance between the second segmented part 320 and the laminated piece 600, and the distance referred to in the embodiment is a vertical distance, and the distribution between the first segmented part 310, the second segmented part 320, and the third segmented part 330 is similar to the structure of the letter “S”. Through the structure, the buffer part 300 forms a locally thickened form in the area corresponding to the corner of the laminated piece 600, so that the area has stronger impact resistance. When an external force is applied to the buffer part 300, the thickened structure of the first segmented part 310 and the third segmented part 330 can effectively absorb and disperse the impact force, thereby reducing the direct action of the external force on the edge protection body 100.

[0049] In an embodiment, referring to Figure 4 As shown, the bearing part 200 is provided with air holes 210.

[0050] In the present embodiment, the bearing part 200 is provided with air holes 210, so that the bearing part 200 has the function of exhausting air during the lamination process of the photovoltaic module. In the lamination process, due to the softening of the packaging material under heat, internal gas may be trapped between the laminated part 600 and the edge protection body 100, forming air bubbles and affecting the packaging quality. The arrangement of the air holes 210 enables the internal gas to be exhausted during the lamination process, avoiding the retention of gas and improving the uniformity of the packaging, thereby enhancing the structural stability of the photovoltaic module. When the gas is not exhausted sufficiently, the residual gas may cause local gaps between the laminated part 600 and the edge protection body 100, reducing the bonding strength of the laminated part 600, and thus possibly causing local shedding of the laminated part 600 or affecting the overall packaging effect.

[0051] In addition, the arrangement of the air holes 210 also provides a flow channel for ethylene-vinyl acetate copolymer glue (EVA), so that the EVA glue can penetrate into the internal area of the bearing part 200 through the air holes 210 and form a stable glue connection after solidification. The filling of the EVA glue in the air holes 210 can enhance the adhesion between the laminated part 600 and the edge protection body 100.

[0052] Further, in an embodiment, referring to Figure 4 As shown, the air holes 210 are arranged in intervals along the bearing part 200 and form at least one row.

[0053] In the present embodiment, a plurality of air holes 210 are arranged in intervals in the bearing part 200 and form at least one row. In this way, during the arrangement of the laminated part 600 on the bearing part 200, the gas can be more smoothly exhausted through the air holes 210, thereby reducing the risk of gas retention during the packaging process and avoiding the formation of air bubbles or local gaps, and improving the packaging quality. At the same time, the uniform distribution of the air holes 210 helps the ethylene-vinyl acetate copolymer glue (EVA) to be uniformly distributed between the edge protection body 100 and the laminated part 600 during the lamination process, ensuring that the EVA glue layer can be stably adhered after solidification, thereby enhancing the bonding force between the edge protection body 100 and the laminated part 600.

[0054] In an embodiment, referring to Figure 1 As shown, the outer side of the photovoltaic module edge protection is also provided with a buffer frame 500, the buffer frame 500 is clamped with the side edge of the photovoltaic module edge protection, and the buffer frame 500 is located in the middle of the side edge of the photovoltaic module edge protection.

[0055] In this embodiment, the buffer frame 500 is disposed on the outer side of the photovoltaic module edge protector and is fixed to the middle of the side of the photovoltaic module edge protector by a snap-fit ​​method. The buffer frame 500 provides additional cushioning protection during the transfer and handling of the photovoltaic module. When an external force is applied to the photovoltaic module edge protector, the buffer frame 500, as an external buffer structure, can preferentially contact the external object and absorb and disperse the impact force through its own structural characteristics, thereby reducing the impact of the external force being directly transmitted to the photovoltaic module edge protector body 100. In addition, the buffer frame 500 disposed in the middle of the side can effectively reduce the direct contact between the corner of the photovoltaic module edge protector and the external object, thereby further reducing the risk of the corner area being impacted by external forces.

[0056] This application also proposes a photovoltaic module, which includes the aforementioned photovoltaic module edge protector and laminate 600.

[0057] In this embodiment, the photovoltaic module includes a photovoltaic module edge protector and a laminate 600. By employing the photovoltaic module edge protector, the photovoltaic module has buffer protection capabilities during transfer and handling, thereby reducing the direct impact of external forces on the laminate 600. The inner side of the edge protector body 100 is provided with a support portion 200, which supports the laminate 600, ensuring its stable positioning. The outer side of the edge protector body 100 is provided with a buffer portion 300, which defines a buffer space 400 between the buffer portion 300 and the edge protector body 100. When external forces act on the photovoltaic module, the buffer portion 300 absorbs and disperses the impact force, while the buffer space 400 provides deformation space, further reducing the impact of external forces on the laminate 600. The synergistic effect of the buffer portion 300 and the buffer space 400 effectively reduces the impact of external forces on the photovoltaic module during handling and transfer, lowering the risk of glass breakage and microcracks in the solar cells, and improving the structural stability and service life of the photovoltaic module.

[0058] The above embodiments merely illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A photovoltaic module edge protector, characterized in that: include: Edge protection body (100); A support portion (200) is disposed inside the edge protector body (100) and is used to support the laminate (600); A buffer portion (300) is disposed on the outside of the edge protector body (100), and a buffer space (400) is defined between the buffer portion (300) and the edge protector body (100).

2. The photovoltaic module edge protector according to claim 1, characterized in that: The edge protector body (100) includes at least one side near the laminate (600) comprising a first segmented surface (110), a second segmented surface (120), and a third segmented surface (130), wherein: The first segmented surface (110) and the third segmented surface (130) each correspond to a corner of the laminate (600); The second segmented surface (120) is located between the first segmented surface (110) and the third segmented surface (130), and the distance between the second segmented surface (120) and the laminate (600) is less than the distance between the first segmented surface (110) and the laminate (600) and the distance between the third segmented surface (130) and the laminate (600).

3. The photovoltaic module edge protector according to claim 2, characterized in that: The distance between the first segmented surface (110) and the laminate (600) and the distance between the third segmented surface (130) and the laminate (600) are 1.2 to 2.5 times the distance between the second segmented surface (120) and the laminate (600), respectively.

4. The photovoltaic module edge protector according to claim 1, characterized in that: Each side of the edge protection body (100) is provided with the buffer part (300).

5. The photovoltaic module edge protector according to claim 4, characterized in that: The buffer portion (300) extends from the upper end face to the lower end face of the edge protector body (100).

6. The photovoltaic module edge protector according to claim 4, characterized in that: The buffer section (300) includes a first segment section (310), a second segment section (320), and a third segment section (330), wherein: The distance between the first segment (310) and the laminate (600) and the distance between the third segment (330) and the laminate (600) are both greater than the distance between the second segment (320) and the laminate (600).

7. The photovoltaic module edge protector according to claim 1, characterized in that: The bearing part (200) is provided with air holes (210).

8. The photovoltaic module edge protector according to claim 7, characterized in that: The pores (210) are arranged at intervals along the bearing portion (200) and form at least one row.

9. The photovoltaic module edge protector according to claim 1, characterized in that: A buffer frame (500) is also provided on the outer side of the photovoltaic module edge protector. The buffer frame (500) is engaged with the side of the photovoltaic module edge protector and is located in the middle of the side of the photovoltaic module edge protector.

10. A photovoltaic module, characterized in that: The photovoltaic module includes the photovoltaic module edge protector as described in any one of claims 1 to 9 and the laminate (600).

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