Photovoltaic module and photovoltaic module processing equipment

Abstract

The utility model discloses a photovoltaic module and photovoltaic module processing equipment. The photovoltaic module comprises at least two substrates and sealing parts located between the adjacent substrates. A concave-convex part is arranged on the edge of the side, close to the sealing component, of the base plate. The concave-convex part comprises a plurality of rows of conical bulges, and the arrangement direction of each row of conical bulges is parallel to the edge extension direction of the substrate; and moreover, the two adjacent rows of conical bulges are arranged in a staggered manner. According to the photovoltaic module provided by the utility model, through the arrangement of the concave-convex parts and the staggered arrangement of the two adjacent rows of conical bulges, the shortest path for water vapor invasion needs to extend in the direction perpendicular to the substrate and also needs to extend in the direction parallel to the substrate; therefore, the effect of increasing a water vapor invasion path is achieved, water vapor entering the photovoltaic module from the side edge of the photovoltaic module is effectively blocked, and the weather resistance of the photovoltaic module is improved.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic equipment, in particular to a photovoltaic component and photovoltaic component processing equipment. Background Art

[0002] Currently, in the manufacturing process of photovoltaic modules, perovskite is being used more and more widely because it can be made into light-transmitting and translucent photovoltaic modules and can be widely used in building windows.

[0003] When making glass perovskite photovoltaic modules, flat glass is generally used as a substrate, and a perovskite absorption layer and other structures are stacked on the substrate to obtain a perovskite chip, and then the perovskite chip is packaged to obtain a perovskite photovoltaic module; since the perovskite absorption layer is sensitive to water vapor, a packaging film plus an edge sealant is generally used to block the entry of water vapor.

[0004] However, due to the high sensitivity of perovskite to water vapor, the sealing method in the prior art cannot better prevent the entry of water vapor, thereby reducing the service life of the device.

[0005] Therefore, how to improve the service life of photovoltaic modules is a technical problem that technicians in this field currently need to solve. Utility Model Content

[0006] The utility model aims to provide a photovoltaic module and photovoltaic module processing equipment, which can improve the water vapor barrier capability of the photovoltaic module, have a long service life and low manufacturing cost.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A photovoltaic module comprises at least two substrates and a sealing component located between adjacent substrates; a concave-convex portion is provided on an edge of one side of the substrate close to the sealing component; the concave-convex portion comprises a plurality of rows of cone protrusions, and the arrangement direction of the cone protrusions in each row is parallel to the extension direction of the edge of the substrate; and the cone protrusions in two adjacent rows are arranged in a staggered manner.

[0009] On the one hand, the cone protrusion is a truncated cone protrusion or a truncated pyramid protrusion.

[0010] On the other hand, the offset distance between two adjacent rows of the cone protrusions is 1 / 4 to 3 / 4 times the length of the base or the diameter of the bottom surface of the cone protrusion.

[0011] On the other hand, the concave-convex portion further includes at least one row of recessed portions located between two adjacent rows of the cone protrusions, and the recessed portions between two adjacent rows of the cone protrusions and / or between each row of the cone protrusions and adjacent recessed portions are staggered.

[0012] On the other hand, the recessed portion is a cone recess, and the depth of the cone recess is ≤ the height of the cone protrusion.

[0013] On the other hand, the cone depression is consistent with the shape and size of the cone protrusion.

[0014] On the other hand, the conical depression is a truncated cone depression or a truncated pyramid depression, and the offset distance between two adjacent rows of the conical depressions or between adjacent conical depressions and the conical protrusion is 1 / 4-3 / 4 times the base length or bottom diameter of the conical depression or the conical protrusion.

[0015] The utility model also provides a photovoltaic module processing device, which is used for processing the photovoltaic module as mentioned above, and comprises a roller for processing the substrate, wherein the roller is provided with a stamping part matching the concave-convex part.

[0016] On the other hand, the stamping portion includes a plurality of circumferential stamping portions and axial stamping portions. The circumferential stamping portions surround the roller circumferentially and are arranged axially of the roller. The axial stamping portions extend axially of the roller and are arranged circumferentially of the roller.

[0017] On the other hand, the width of the concave and convex portion is W, the width of the circumferential stamping portion located at both ends of the roller is W+E, E is a processing error parameter, and the width of the circumferential stamping portion located in the middle of the roller is 2W+2E; the width of one of the axial stamping portions is W+E, and the width of the other axial stamping portions is 2W+2E.

[0018] The photovoltaic module provided by the utility model includes at least two substrates and a sealing component located between adjacent substrates; a concave-convex portion is provided on one side edge of the substrate close to the sealing component; the concave-convex portion includes a plurality of rows of cone protrusions, and the arrangement direction of each row of cone protrusions is parallel to the extension direction of the edge of the substrate; and the cone protrusions in two adjacent rows are staggered. The photovoltaic module provided by the utility model, through the provision of the concave-convex portion and the staggered arrangement of the cone protrusions in two adjacent rows, makes the shortest path for water vapor intrusion not only need to extend in a direction perpendicular to the substrate, but also need to extend in a direction parallel to the substrate, thereby achieving the effect of increasing the water vapor intrusion path, thereby effectively blocking the water vapor entering the interior from the side of the photovoltaic module, and improving the weather resistance of the photovoltaic module.

[0019] The photovoltaic module processing equipment provided by the utility model is provided with the above-mentioned photovoltaic module. Since the photovoltaic module has the above-mentioned technical effects, the photovoltaic module processing equipment provided with the photovoltaic module should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic structural diagram of a specific implementation of a substrate in a photovoltaic module provided by the utility model;

[0022] Figure 2 for Figure 1 A schematic structural diagram of a concave-convex portion in a substrate in one embodiment;

[0023] Figure 3 for Figure 1 A schematic structural diagram of the concave-convex portion in the substrate in another embodiment;

[0024] Figure 4 for Figure 1 A schematic diagram of the corner positions of the substrate shown;

[0025] Figure 5 A schematic diagram of the assembly structure of the photovoltaic module provided by the utility model;

[0026] Figure 6 A structural schematic diagram of a specific implementation of a roller in a photovoltaic module processing device provided by the utility model;

[0027] Wherein: substrate 100; first substrate 110; second substrate 120; concave-convex portion 101; cone protrusion 102; concave portion 103; transition portion 104; power generation layer 200; bus bar 300; packaging film 400; sealing component 500; sealing glue 600; junction box 700; roller 800; circumferential stamping portion 801; axial stamping portion 802. DETAILED DESCRIPTION

[0028] The core of the utility model is to provide a photovoltaic module and photovoltaic module processing equipment, which can improve the service life of the photovoltaic module, effectively block water vapor, and have high processing efficiency and low cost.

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Please refer to Figures 1 to 5 , Figure 1 A schematic structural diagram of a specific implementation of a substrate in a photovoltaic module provided by the utility model; Figure 2 for Figure 1 A schematic structural diagram of a concave-convex portion in a substrate in one embodiment; Figure 3 for Figure 1 A schematic structural diagram of the concave-convex portion in the substrate in another embodiment; Figure 4 for Figure 1 A schematic diagram of the corner positions of the substrate shown; Figure 5 This is a schematic diagram of the assembly structure of the photovoltaic module provided by the utility model.

[0031] In this embodiment, the photovoltaic module includes at least two substrates 100 and a sealing member 500 located between adjacent substrates 100; Figure 1 As shown, a concave-convex portion 101 is provided on one side edge of the substrate 100 close to the sealing component 500; Figure 2 As shown, the concave-convex portion 101 includes a plurality of rows of pyramidal protrusions 102 , and the arrangement direction of each row of pyramidal protrusions 102 is parallel to the edge extension direction of the substrate 100 ; and the pyramidal protrusions 102 in two adjacent rows are arranged in a staggered manner.

[0032] Specifically, the photovoltaic module has a significant water vapor-proof effect and is preferably used in perovskite photovoltaic modules. Further, the concave-convex portion 101 includes several rows of cone protrusions 102, and each row of cone protrusions 102 includes several cone protrusions 102 arranged in sequence. The arrangement of the cone protrusions 102 is to form a concave-convex structure on the edge of the substrate 100. In the process of glue filling to form the sealing component 500, a staggered connection surface can be formed between the sealing component 500 and the concave-convex portion 101 of the substrate 100, thereby significantly increasing the intrusion stroke of water vapor; in order to further increase the intrusion stroke of water vapor, the adjacent two rows of cone protrusions 102 are staggered, so that after the water vapor enters the gap between the sealing component 500 and the substrate 100, in addition to the increase in the direction perpendicular to the substrate 100, there is also an increase in the direction parallel to the substrate 100, thereby effectively preventing the water vapor from entering the interior of the two adjacent substrates 100 and causing damage. Furthermore, the substrate 100 includes a first substrate 110 and a second substrate 120, and the sealing component 500 is located between the first substrate 110 and the second substrate 120 and at the edge of the first substrate 110 and the second substrate 120; a concave-convex portion 101 is provided on the opposite side of the first substrate 110 and the second substrate 120, and the positions of the concave-convex portions 101 of the first substrate 110 and the second substrate 120 can correspond to each other, which is not only convenient for processing, but also more uniform in blocking water vapor. Figure 2As shown, only the structure of the concave-convex portion 101 on the substrate 100 is shown, and the main part of the substrate 100 is not shown; the direction of the arrow is the intrusion direction of water vapor in a direction parallel to the substrate 100, and the intrusion in a direction perpendicular to the substrate 100 is not shown.

[0033] The photovoltaic module provided by the utility model, through the setting of the concave-convex part 101 and the staggered arrangement between two adjacent rows of conical protrusions 102, makes the shortest path for water vapor intrusion not only extend in the direction perpendicular to the substrate 100, but also need to extend in the direction parallel to the substrate 100, thereby achieving the effect of increasing the water vapor intrusion path, thereby effectively blocking the water vapor entering the interior from the side of the photovoltaic module, and improving the weather resistance of the photovoltaic module.

[0034] In some embodiments, the cone protrusion 102 is a truncated cone protrusion or a truncated pyramid protrusion. Specifically, the cone protrusion 102 is preferably a truncated pyramid protrusion, which has more edges and can further increase the range of water vapor, and has a good range-increasing effect; the use of a truncated cone protrusion or a truncated pyramid protrusion increases the surface area of ​​the concave-convex part 101 while facilitating processing.

[0035] In some embodiments, the offset distance between two adjacent rows of cone protrusions 102 is 1 / 4-3 / 4 times the length of the bottom side or the diameter of the bottom surface of the cone protrusion 102. Specifically, the offset distance between two adjacent rows of cone protrusions 102 is set to ensure that water vapor can be better blocked by the next row of cone protrusions 102 after passing through the gap between two adjacent cone protrusions 102 in the same row, thereby achieving a range-extending effect.

[0036] In some embodiments, the height of the pyramidal protrusion 102 is 100-200um, that is, the height difference between the protrusion and the depression formed on the substrate 100 is 100-200um, and the width of the pyramidal protrusion 102 is preferably set to 100-150um. The height of the pyramidal protrusion 102 should not be too large, which will affect the strength of the substrate 100, nor too small, which will reduce the distance for water vapor to invade.

[0037] In some embodiments, Figure 3As shown, the concave-convex part 101 also includes at least one row of recessed parts 103 located between two adjacent rows of cone protrusions 102, and the recessed parts 103 are arranged in a staggered manner between the two adjacent rows and / or between each row of cone protrusions 102 and the adjacent recessed parts 103. Specifically, each row of recessed parts 103 includes a plurality of recessed parts 103 arranged in sequence, and barriers are provided between adjacent recessed parts 103, so as to form a convex structure arranged at intervals on the sealing component 500; in this way, at least one row of recessed parts 103 is provided between two adjacent rows of concave-convex parts 101, so that after the glue filling process, a boss inserted into the recessed part 103 will be formed on the sealing component 500, so that the intrusion stroke of water vapor can be further increased in the direction perpendicular to the substrate 100, and a better range-extending effect can be achieved.

[0038] In some embodiments, the recessed portion 103 is a cone-shaped recessed portion, and the depth of the cone-shaped recessed portion is ≤ the height of the cone-shaped protrusion 102. Specifically, a row of recessed portions 103 is preferably provided between two adjacent rows of cone-shaped protrusions 102; the recessed portion 103 is preferably a cone-shaped recessed portion, and a cone-shaped protrusion 102 is formed on the sealing component 500. In the direction perpendicular to the edge line of the substrate 100, the cone-shaped recessed portion and the cone-shaped protrusion 102 are arranged at intervals. During the process of water vapor invading in the direction perpendicular to the edge line of the substrate 100, the invading stroke is further increased in the direction perpendicular to the substrate 100, thereby improving the range-extending effect, thereby effectively improving the service life of the photovoltaic module.

[0039] In some embodiments, the cone recess and the cone protrusion 102 have the same shape and size. Specifically, by setting the cone recess and the cone protrusion 102 to the same structure, not only can the processing be facilitated, but also the uniformity of the connection strength between the concavoconvex part 101 and the sealing component 500 can be ensured.

[0040] In some embodiments, the conical depression is a truncated cone depression or a truncated pyramid depression, and the offset distance between two adjacent rows of conical depressions or adjacent conical depressions and the conical protrusion 102 is 1 / 4-3 / 4 times the length of the base or the bottom diameter of the conical depression or conical protrusion 102. Similarly, the conical depression is preferably a truncated pyramid depression, which has a better range-extending effect than the conical depression, and the water vapor intrusion travel is longer. Preferably, by setting the offset distance between two adjacent rows of conical depressions or adjacent conical depressions and the conical protrusion 102 to 1 / 2 of the length of the base or the bottom diameter of the conical depression or conical protrusion 102, the conical protrusion 102 or conical depression in a row is located in the middle of two conical protrusions 102 or two conical depressions in an adjacent row. Such a setting can ensure better blocking of water vapor, thereby achieving a range-extending effect.

[0041] In some embodiments, the concave-convex portion 101 on the substrate 100 extends in a direction parallel to the edge of the substrate 100, and a transition portion 104 is provided at the corner of the substrate 100, and the transition portion 104 is arc-shaped and smoothly transitioned, such as Figure 4 As shown, this arrangement can ensure that the entire edge of the substrate 100 has a uniform extension effect and has a better effect on the intrusion of water vapor.

[0042] In some embodiments, Figure 5 As shown, the photovoltaic module also includes a power generation layer 200, a bus bar 300, a packaging film 400, a sealing glue 600 and a junction box 700. Among them, the first substrate 110 and the second substrate 120 are preferably low-iron ultra-white glass, and the edges thereof are embossed with concave-convex parts 101 to form an extended-range belt; the power generation layer 200 is preferably a perovskite power generation layer 200, which includes a positive electrode layer, a hole transport layer, a perovskite absorption layer, an electron transport layer, a buffer layer, and a negative electrode layer in sequence from the direction close to the first substrate 110, and is divided into a number of sub-cells connected in series by P1, P2, and P3 lines; the bus bar 300 is respectively attached to the sub-cells of the positive and negative poles of the battery string, and is connected to the junction box 700 through the packaging film 400 and the lead-out hole; the packaging film 400 is preferably made of TPO (thermoplastic polyolefin elastomer) material; the sealing Component 500 is located at the edge of the first substrate 110 and the second substrate 120, and is preferably made of butyl rubber with excellent water vapor barrier properties; the second substrate 120 can be made of ordinary white glass, and a concave-convex portion 101 is embossed on its edge to form an extended-range belt; the cross-sectional shape of the concave-convex portion 101 of the second substrate 120 may be consistent with or inconsistent with the concave-convex portion 101 of the first substrate 110; sealing glue 600 is poured into the lead-out hole to block water vapor, and butyl rubber or silicone glue is preferably used as the sealing glue 600; the junction box 700 is installed at the lead-out hole, and its chamber is provided with terminals that are respectively welded to the busbar 300, and the junction box 700 is provided with connectors, and the terminals are connected by cables.

[0043] In addition to the above photovoltaic modules, the present invention also provides a photovoltaic module processing device including the above photovoltaic modules. Figure 6 As shown, Figure 6 It is a structural schematic diagram of a specific implementation of the roller 800 in the photovoltaic module processing equipment provided by the utility model.

[0044] The photovoltaic module processing equipment includes a calender, on which a roller 800 for processing a substrate 100 is provided, and on which a stamping portion matching the concavoconvex portion 101 is provided. Specifically, by rolling and pressing the roller 800 on the substrate 100, the stamping portion on the roller 800 is pressed into the surface of the substrate 100, thereby forming the concavoconvex portion 101.

[0045] In some embodiments, the stamping part includes a plurality of circumferential stamping parts 801 and axial stamping parts 802. The circumferential stamping parts 801 surround the roller 800 in the circumferential direction and are arranged in the axial direction of the roller 800. The axial stamping parts 802 extend in the axial direction of the roller 800 and are arranged in the circumferential direction of the roller 800. Specifically, the calender is provided with an upper roller and a lower roller. The upper roller is set as a smooth roller. The roller 800 referred to in this embodiment refers to the lower roller of the calender. Of course, the upper and lower rollers can also be replaced. The roller 800 is provided with a plurality of circumferential stamping parts 801 and axial stamping parts 802 according to the size of the substrate 100 and the size of the lower roller, such as Figure 6 As shown, the lower roller is provided with m (m≥2) circumferential stamping parts 801 along the circumferential direction and n (n≥1) axial stamping parts 802 parallel to the axis centerline of the roller 800; during the rotation of the lower roller, the circumferential stamping parts 801 and the axial stamping parts 802 can be transferred to the surface of the substrate 100. After the lower roller rotates one circle, the substrate 100 is cut from the center line of the concave-convex part 101 parallel to the axis centerline of the roller 800, and then the substrate 100 is cut along the circumferential direction of the roller 800 and the center line of the concave-convex part 101 located in the middle of the substrate 100, and (m-1)*n substrates 100 can be obtained. It should be noted that in order to ensure the sealing effect of the substrate 100 after cutting, an annular boss should be provided in the middle of the circumferential stamping part 801 located in the middle of the roller 800 to form a dividing line for cutting on the substrate 100.

[0046] Furthermore, after being embossed, the substrate 100 enters an annealing kiln for annealing, and the cooled substrate 100 glass is cut. The concave-convex portion 101 extension belt parallel to the axis of the roller 800 is cut along its center line, and the concave-convex portion 101 extension belt in the other direction and in the middle of the substrate 100 is also cut along the center line, and the edge in this direction is cut 0.5-1mm away from the outer periphery of the concave-convex portion 101 extension belt. The cut substrate 100 is edge-ground and corner-ground by 0.5-1mm to obtain the original substrate 100.

[0047] In some embodiments, the width of the concave-convex portion 101 is W, the width of the circumferential stamping portion 801 located at both ends of the roller 800 is W+E, E is a processing error parameter, and the width of the circumferential stamping portion 801 located in the middle of the roller 800 is 2W+2E; the width of one of the axial stamping portions 802 is W+E, and the width of the other axial stamping portions 802 is 2W+2E. Specifically, E is preferably 0.5-1mm. In a specific embodiment, the width of the circumferential stamping portion 801 arranged along the circumferential direction of the roller 800 and located in the middle of the roller 800 is 1-2mm more than twice the width of the concave-convex portion 101 required for the substrate 100. The axial stamping portions 802 arranged along the circumferential direction of the roller 800 can be set as needed to have at least one axial stamping portion 802 with a width that is 0.5-1mm more than the width of the concave-convex portion 101 required for the substrate 100; and the width of other axial stamping portions 802 is 1-2mm more than twice the width of the concave-convex portion 101 required for the substrate 100, and, in order to facilitate cutting, a strip protrusion should be provided in the middle position of the axial stamping portion 802, and the strip protrusion should be parallel to the axial direction of the roller 800, so as to form a dividing line on the substrate 100.

[0048] After obtaining the first substrate 110 and the second substrate 120, after the processes of cleaning, tempering the second substrate 120, manufacturing the perovskite chip of the first substrate 110, laminating, and installing the junction box 700, a circle of airtight adhesive is coated on the bottom of the junction box 700 and bonded to the lead-out hole to form a sealing glue 600, the lead-out wire passes through the bottom cavity of the junction box 700 into the junction box 700 and is welded to the terminal, and the potting glue is poured into the inner cavity of the junction box 700 to form a perovskite Photovoltaic module; the lamination step includes placing the perovskite chip glass, that is, the chip surface of the second substrate 120 facing upward, and attaching the busbar 300 to the positive and negative sub-batteries of the second substrate 120; applying the packaging film 400, the thickness of the packaging film 400 is 0.4-0.8mm, and the length and width extend 1-3mm from each side of the battery area of ​​the second substrate 120 to achieve complete coverage of the battery area, and the packaging film 400 is provided with a small gap at the lead-out hole of the second substrate 120 corresponding to the busbar 30 0 passes through the small gap of the packaging film 400; the edge sealant is applied, and the edge sealant is applied on the periphery of the packaging film 400 and the periphery of the first substrate 110 and the second substrate 120 to form a sealing component 500; the thickness of the sealing component 500 is 0.1-0.15mm higher than the packaging film 400, and the width of the sealing component 500 extends from the packaging film 400 to the edge of the substrate 100 and completely covers the entire concave-convex portion 101 extended range area, and the coating is performed using a butyl adhesive coating machine. , the coating temperature is set to 152-158°C, and the coating speed is 10-13cm / s to ensure that the butyl rubber is heated and softened to fill the extended-range belt and avoid bubbles; the second substrate 120 glass is placed on the first substrate 110, and the side with the concave-convex portion 101 of the extended-range belt is in contact with the packaging film 400, and the bus bar 300 is passed through the lead-out hole and smoothed, and the sealing glue 600 is poured into the lead-out hole, and 4-8 fixing tapes are affixed to the bus bar 300 and around the component to obtain the laminated component.

[0049] The perovskite photovoltaic module can effectively block water vapor from entering the inside of the photovoltaic module from the side of the photovoltaic module, thereby improving the weather resistance of the perovskite module; a plurality of rows of conical protrusions 102 or conical depressions are arranged in the direction of the shortest distance perpendicular to the entry of water vapor, each row of conical protrusions 102 or conical depressions are arranged neatly, and the concave-convex portion 101 is arranged with two adjacent rows of conical protrusions 102 or conical depressions staggered, which can ensure that the shortest water vapor barrier path between the sealing component 500 and the first substrate 110 and the second substrate 120 is greatly increased, and the water vapor barrier capability is enhanced.

[0050] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0051] The photovoltaic module provided by the utility model is introduced in detail above. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A photovoltaic module, comprising at least two substrates (100) and a sealing component (500) located between adjacent substrates (100); characterized in that: A concave-convex portion (101) is provided on one side edge of the substrate (100) close to the sealing component (500); the concave-convex portion (101) comprises a plurality of rows of cone protrusions (102); the arrangement direction of each row of cone protrusions (102) is parallel to the extension direction of the edge of the substrate (100); and two adjacent rows of cone protrusions (102) are arranged in a staggered manner.

2. The photovoltaic module according to claim 1, characterized in that: The cone protrusion (102) is a truncated cone protrusion or a truncated pyramid protrusion.

3. The photovoltaic module according to claim 2, characterized in that: The offset distance between two adjacent rows of the cone protrusions (102) is 1 / 4 to 3 / 4 times the length of the bottom side or the diameter of the bottom surface of the cone protrusion (102).

4. The photovoltaic module according to any one of claims 1 to 3, characterized in that: The concave-convex portion (101) further comprises at least one row of recessed portions (103) located between two adjacent rows of the cone protrusions (102), and the recessed portions (103) are arranged in a staggered manner between two adjacent rows of the cone protrusions (102) and / or between each row of the cone protrusions (102) and adjacent recessed portions (103).

5. The photovoltaic module according to claim 4, characterized in that: The recessed portion (103) is a cone-shaped recess, and the depth of the cone-shaped recess is less than or equal to the height of the cone-shaped protrusion (102).

6. The photovoltaic module according to claim 4, characterized in that: The cone depression is consistent with the cone protrusion (102) in shape and size.

7. The photovoltaic module according to claim 6, characterized in that: The conical depressions are truncated cone depressions or prism-shaped cone depressions, and the offset distance between two adjacent rows of conical depressions or between adjacent conical depressions and the conical protrusion (102) is 1 / 4 to 3 / 4 times the length of the base or the bottom diameter of the conical depression or the conical protrusion (102).

8. A photovoltaic module processing device, used for processing the photovoltaic module according to any one of claims 1 to 7, characterized in that: It comprises a roller (800) for processing the substrate (100), wherein the roller (800) is provided with a stamping portion matching the concave-convex portion (101).

9. The photovoltaic module processing equipment according to claim 8, characterized in that: The stamping portion comprises a plurality of circumferential stamping portions (801) and axial stamping portions (802); the circumferential stamping portions (801) surround the roller (800) in the circumferential direction and are arranged in the axial direction of the roller (800); and the axial stamping portions (802) extend in the axial direction of the roller (800) and are arranged in the circumferential direction of the roller (800).

10. The photovoltaic module processing equipment according to claim 9, characterized in that: The width of the concave-convex portion (101) is W, the width of the circumferential stamping portion (801) located at both ends of the roller (800) is W+E, E is a processing error parameter, and the width of the circumferential stamping portion (801) located in the middle of the roller (800) is 2W+2E; the width of one of the axial stamping portions (802) is W+E, and the width of the other axial stamping portions (802) is 2W+2E.

Images