Manufacturing method of photovoltaic module glass and photovoltaic module

Abstract

The invention discloses a manufacturing method of photovoltaic module glass and a photovoltaic module. The manufacturing method of the photovoltaic module glass comprises the following steps: obtaining a carrier; attaching a reflective material to the carrier; making the reflecting material into a reflecting structure; fixing the reflection structure on the surface of the glass body to form a cavity, and separating the reflection structure from the carrier to obtain the glass. Therefore, the reflection structure and the glass body can be integrated into the glass, the situation that a reflective film is pasted on the glass in a photovoltaic module through a film pasting machine in the installation process can be avoided, the installation procedures are reduced, the corresponding technology can be simplified, and the cost is reduced; the reflection structure of the cavity can better increase the reflection effect, so that the light can be reflected to the battery piece through a certain path, the light utilization rate of the photovoltaic module is increased, and the power generation power is improved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic technology, and in particular to a method for manufacturing photovoltaic module glass and a photovoltaic module. Background Technology

[0002] In existing technologies, reflective films are set at the gaps between the corresponding solar cells on the front or back glass of photovoltaic modules to improve the absorption and utilization of light. However, applying various types of gap reflective films to the front or back glass requires the introduction of new film-applying equipment, which not only increases the corresponding cost but also requires multiple processes, resulting in low efficiency in the assembly process of photovoltaic modules. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a method for manufacturing photovoltaic module glass. This method enables the reflective structure and the glass body to be integrated into a single unit, thereby avoiding the need for applying reflective films using a laminating machine during the installation process of the photovoltaic module, reducing installation steps, simplifying the process, and lowering costs. Furthermore, the presence of a cavity between the reflective structure and the glass body enhances the reflection effect, allowing light to be reflected onto the solar cells through a specific path, thus increasing the utilization rate of light by the photovoltaic module and improving power generation.

[0004] The present invention further proposes a photovoltaic module.

[0005] A method for manufacturing photovoltaic module glass according to a first aspect of the present invention includes: obtaining a carrier; attaching a reflective material to the carrier; forming a reflective structure from the reflective material; fixing the reflective structure to the surface of a glass body to form a cavity; and separating the reflective structure from the carrier to obtain glass.

[0006] Therefore, this method of manufacturing photovoltaic module glass can achieve an integrated glass structure and glass body, thereby avoiding the need to apply reflective film using a film applicator during the installation process of photovoltaic modules, reducing installation steps, simplifying the corresponding processes, and reducing costs. Moreover, the cavity structure formed between the reflective structure and the glass body can better enhance the reflection effect, allowing light to be reflected onto the solar cells through a certain path, thereby increasing the utilization rate of light by the photovoltaic module and improving power generation.

[0007] According to some embodiments of the present invention, the step of making the reflective material into a reflective structure includes: pressing a plurality of reflective units arranged in rows and columns onto the surface of the reflective material; and curing the reflective material to manufacture the reflective structure.

[0008] According to some embodiments of the present invention, the step of pressing a reflective pattern of multiple reflective units onto the surface of the reflective material includes: pressing a plurality of the reflective units onto the surface of the reflective material using a pressing roller with a reflective pattern.

[0009] According to some embodiments of the present invention, prior to the step of attaching the reflective material to the carrier, the method further includes: pre-treating the surface of the carrier to increase adhesion.

[0010] According to some embodiments of the present invention, the pretreatment includes: corona treatment or treatment with an adhesion promoter.

[0011] According to some embodiments of the present invention, the reflective material includes an ultraviolet-resistant coating and a reflective layer; the step of attaching the reflective material to the carrier includes: coating the ultraviolet-resistant coating onto the carrier; and coating the reflective layer onto the ultraviolet-resistant coating.

[0012] According to some embodiments of the present invention, the step of fixing the reflective structure to the surface of the glass body and forming a cavity, and separating the reflective structure from the carrier to obtain glass includes: bonding the reflective structure to the surface of the glass body; separating the reflective structure from the carrier; and curing the reflective structure on the glass body to obtain the glass.

[0013] According to some embodiments of the present invention, the step of bonding the reflective structure to the surface of the glass body includes: coating the surface of the glass body with an adhesive; and bonding the reflective structure to the adhesive.

[0014] According to some embodiments of the present invention, the carrier is a release film.

[0015] A photovoltaic module according to a second aspect of the present invention includes: a front glass; a back sheet located behind the front glass; a battery string located between the front glass and the back sheet, the battery string including a plurality of battery cells with gaps formed between the plurality of battery cells; and an encapsulating film located between the front glass and the battery string, and between the back sheet and the battery string; wherein at least one of the front glass and the back sheet is manufactured using the above-described photovoltaic module glass manufacturing method, and the reflective structure corresponds to the gaps.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram illustrating the fabrication of photovoltaic module glass according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a photovoltaic module according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the reflective structure according to an embodiment of the present invention;

[0021] Figure 4 This is a flowchart illustrating the fabrication of photovoltaic module glass according to an embodiment of the present invention.

[0022] Figure label:

[0023] 100. Photovoltaic modules;

[0024] 10. Front glass; 11. Glass body; 12. Reflective structure; 121. Reflective unit; 122. First reflective structure; 123. Second reflective structure;

[0025] 13. Cavity; 20. Backplate;

[0026] 30. Battery string; 31. Battery cell; 311. First gap; 312. Second gap;

[0027] 40. Adhesive film; 50. Adhesive;

[0028] 60. Carrier; 61. Carrier roller; 62. Pretreatment roller; 63. Coating roller; 64. Pressing roller; 65. Adhesive roller; 66. Transition roller; 67. Pressing roller;

[0029] 68. First curing device; 69. Second curing device; 70. Conveyor frame; 71. Carrier roller. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0031] The following is for reference. Figures 1-4 The following describes a method for manufacturing the glass of a photovoltaic module 100 according to an embodiment of the present invention.

[0032] Reference Figure 1 and Figure 4As shown, the method for manufacturing the glass of the photovoltaic module 100 according to an embodiment of the present invention includes: obtaining a carrier 60, attaching a reflective material to the carrier 60, forming a reflective structure 12 from the reflective material, fixing the reflective structure 12 to the surface of the glass body 11 and forming a cavity 13, and separating the reflective structure 12 from the carrier 60 to obtain the glass.

[0033] Specifically, the manufacturing steps for photovoltaic module 100 glass are as follows:

[0034] Step S1: Obtain carrier 60.

[0035] The carrier 60 is pre-wound on the carrier roller 61.

[0036] Step S2: Attach the reflective material to the carrier 60.

[0037] Specifically, the carrier 60 is conveyed between two coating rollers 63, the surface of which is provided with reflective material. Under the rolling pressure of the two coating rollers 63, the reflective material can be attached to the surface of the carrier 60.

[0038] Step S3: The reflective material is made into a reflective structure 12.

[0039] Specifically, a carrier 60 with reflective material is conveyed between two pressing rollers 64, and the reflective material can form a reflective structure 12 under the rolling pressure of the pressing rollers 64.

[0040] Step S4: Fix the reflective structure 12 to the surface of the glass body 11 to form a cavity 13, and separate the reflective structure 12 from the carrier 60 to obtain the glass.

[0041] Specifically, after the pressed reflective structure 12 is cured by the first curing device 68, it is conveyed to the pressing roller 67 via the transition roller 66. At the same time, the glass body 11 is conveyed to the position corresponding to the pressing roller 67. The reflective structure 12 is fixed to the surface of the glass body 11 under the rolling of the pressing roller 67. At this time, the reflective structure 12 and the carrier 60 are separated, thereby forming a glass integral with the reflective structure 12 and the glass body 11. This avoids the need to use a film-applying machine to apply reflective film to the glass in the photovoltaic module during the installation process. This is completed during the glass manufacturing process, which reduces the step of applying reflective film during installation, reduces the corresponding process and installation steps, and also reduces costs.

[0042] Furthermore, a cavity 13 is formed between the reflective structure 12 and the glass body 11. The reflective structure 12 with optical functional cavity 13 can better increase the reflection effect, allowing light to be reflected onto the solar cell 31 through a certain path, thereby improving the absorption of light by the photovoltaic module 100. Specifically, when light shines on the reflective structure 12 with cavity 13, the light will be reflected onto the surface of the front glass 10 through a certain path, and then the light reflected onto the surface of the front glass 10 will be reflected onto the solar cell 31 through a certain path, thereby increasing the utilization rate of light by the solar cell 31 and also improving the power generation.

[0043] Therefore, the manufacturing method of the photovoltaic module 100 glass can realize the glass in which the reflective structure 12 and the glass body 11 are integrated, thereby avoiding the need to use a film-applying machine to apply reflective film during the installation of the glass in the photovoltaic module, reducing installation steps, simplifying the corresponding process, and reducing costs. Moreover, a cavity 13 is formed between the reflective structure 12 and the glass body 11. The reflective structure 12 with optical functional cavity 13 can better increase the reflection effect, allowing light to be reflected onto the solar cell 31 through a certain path, thereby increasing the utilization rate of light by the photovoltaic module 100 and improving power.

[0044] According to some embodiments of the present invention, such as Figure 1 and Figure 3 As shown, the steps of making a reflective structure 12 from a reflective material include: pressing a plurality of reflective units 121 that can be arranged in rows and columns onto the surface of the reflective material, curing the reflective material, and manufacturing the reflective structure 12.

[0045] In this process, the surface of the reflective material passes between two pressing rollers 64, and the surface of the reflective material is pressed into multiple reflective units 121 arranged in rows and columns under the rolling pressure of the pressing rollers 64, thereby forming a reflective structure 12.

[0046] Multiple reflective units 121 can be arranged in rows and columns, and a cavity 13 is formed between adjacent multiple reflective units 121 and the glass body 11.

[0047] For example, the multiple reflective units 121 can be arranged in five rows and five columns, so that the battery string 30 can receive the light reflected by the multiple reflective units 121 more evenly.

[0048] Furthermore, cavities 13 are provided between each two adjacent reflective units 121 and the glass body 11, so that the battery string 30 can receive light evenly, thereby making the power generation efficiency of the photovoltaic module 100 more stable.

[0049] According to some embodiments of the present invention, such as Figure 1As shown, the step of pressing a reflective pattern of multiple reflective units 121 onto the surface of a reflective material includes: pressing multiple reflective units 121 onto the surface of the reflective material using a pressing roller 64 with a reflective pattern.

[0050] One of the two pressing rollers 64 has a reflective pattern corresponding to the reflective structure 12, while the other pressing roller 64 does not have a reflective pattern and is used to support the carrier.

[0051] Specifically, a carrier 60 with reflective material is conveyed between two pressing rollers 64. Under the rolling of the pressing rollers 64 with reflective patterns, multiple reflective units 121 can be pressed onto the surface of the reflective material, which facilitates the production of the reflective structure 12. The reflective unit 121 can be a triangular prism structure or a roof prism structure.

[0052] Furthermore, the cross-section of the reflective unit 121 is triangular, trapezoidal, or arc-shaped.

[0053] Among them, such as Figure 3 As shown, the cross-section of the reflective unit 121 can be set as a triangle. This not only improves the strength and stability of the reflective unit 121, but also allows the light from the gap to be reflected multiple times onto the solar cell 31, thus achieving a light-concentrating effect. The cross-section of the reflective unit 121 can also be set as a trapezoid. The trapezoidal cross-section can increase the contact area between the light and the reflective unit 121, thereby improving the light reflection efficiency.

[0054] Furthermore, the reflective unit 121 can also be configured as an arc shape, which can make the light propagation smoother and reduce light loss.

[0055] According to some embodiments of the present invention, prior to the step of attaching the reflective material to the carrier 60, the method further includes: pre-treating the surface of the carrier 60 to increase adhesion.

[0056] Specifically, before attaching the reflective material to the carrier 60, the carrier 60 is first conveyed between two pre-treatment rollers 62. The carrier 60 passing between the two pre-treatment rollers 62 can increase the adhesion, thereby facilitating the attachment of the reflective material.

[0057] According to some embodiments of the present invention, such as Figure 1 As shown, the pretreatment includes: corona treatment or coating with an adhesion promoter.

[0058] The surface of the carrier 60 is pretreated. This pretreatment can be achieved through corona treatment, or by coating the surface of the carrier 60 with an adhesion promoter via a pretreatment roller 62. Corona treatment increases the adhesion of the carrier 60 surface, making it easier to bond with the reflective material.

[0059] Furthermore, the pretreatment method involves coating with an adhesion promoter, which can form a chemical or physical bond between the reflective material and the carrier 60, thereby significantly improving the adhesion of the reflective material.

[0060] According to some embodiments of the present invention, the reflective material includes an ultraviolet-resistant coating and a reflective layer, and the step of attaching the reflective material to the carrier 60 includes: coating the carrier 60 with the ultraviolet-resistant coating and coating the reflective layer onto the ultraviolet-resistant coating.

[0061] In the step of attaching the reflective material to the carrier 60, firstly, the carrier 60 is coated with a UV-resistant coating, and then a reflective layer is coated.

[0062] The UV-resistant coating can effectively prevent ultraviolet rays from damaging the reflective layer, thereby extending its service life and maintaining high performance.

[0063] Specifically, the reflective layer is either a UV adhesive structure or a resin structure. This not only facilitates the entry of light but also reflects it, thereby improving the light utilization rate of the battery string 30.

[0064] Furthermore, the reflective structure 12 is a UV adhesive structure or a resin structure. The UV adhesive structure or resin structure is a transparent structural component, which not only facilitates the illumination of light but also reflects light, thereby increasing the contact area of ​​the battery string 30 with light.

[0065] According to some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the steps of fixing the reflective structure 12 to the surface of the glass body 11 to form a cavity 13 and separating the reflective structure 12 from the carrier 60 to obtain glass include: bonding the reflective structure 12 to the surface of the glass body 11, separating the reflective structure 12 from the carrier 60, and curing the reflective structure 12 on the glass body 11 to obtain glass.

[0066] The steps for fixing the reflective structure 12 to the surface of the glass body 11 and forming a cavity 13 to obtain the glass are as follows:

[0067] First, the carrier 60 with the reflective structure 12 is conveyed to the pressing roller 67, which winds the carrier 60 with the reflective structure 12. At the same time, the glass body 11 is conveyed below the pressing roller 67, and the reflective structure 12 comes into contact with the glass body 11. The reflective structure 12 is bonded to the surface of the glass body 11 under the rolling pressure of the pressing roller 67. Meanwhile, the reflective structure 12 separates from the carrier 60. Finally, the reflective structure 12 bonded to the surface of the glass body 11 is conveyed to the second curing device 69 for curing, thereby obtaining glass.

[0068] According to some embodiments of the present invention, such as Figure 1 As shown, the step of bonding the reflective structure 12 to the surface of the glass body 11 includes: coating the surface of the glass body 11 with an adhesive, and bonding the reflective structure 12 to the adhesive.

[0069] In this process, the glass body 11 is conveyed by the transfer frame 70 to the area below the adhesive-coated roller 65. Under the rolling action of the adhesive-coated roller 65, the surface of the glass body 11 is coated with adhesive. The reflective structure 12 is conveyed by the transition roller 66 to the pressing roller 67. Under the rolling action of the pressing roller 67, the reflective structure 12 is bonded to the adhesive on the surface of the glass body 11. The adhesive can be set as adhesive 50. At the same time, the reflective structure 12 and the carrier 60 are separated, and the reflective structure 12 is cured on the glass body 11 to obtain glass. The separated carrier 60 is recycled by winding the carrier collection roller 71.

[0070] According to some embodiments of the present invention, the carrier 60 is a release film.

[0071] The release film with a certain thickness can be made of polyethylene (PE) as the carrier 60 for the reflective structure 12, or it can be made of PET resin as the carrier 60 for the reflective structure 12.

[0072] According to a second aspect embodiment of the photovoltaic module 100, such as Figure 2 As shown, it includes: a front glass 10, a back sheet 20, a battery string 30, and an encapsulating film 40. The back sheet 20 is located behind the front glass 10, the battery string 30 is located between the front glass 10 and the back sheet 20, the battery string 30 includes a plurality of battery cells 31, and gaps are formed between the plurality of battery cells 31. The encapsulating film 40 is located between the front glass 10 and the battery string 30, and between the back sheet 20 and the battery string 30. At least one of the front glass 10 and the back sheet 20 is made using the manufacturing method of the photovoltaic module 100 glass of the above embodiment, and the reflective structure 12 corresponds to the gap.

[0073] Specifically, the reflective structure 12 is disposed on the back of the glass body 11, which can reflect light and thus improve the light utilization rate. Moreover, the reflective structure 12 is disposed corresponding to the gaps of the multiple solar cells 31. In this way, the reflective structure 12 can not only avoid blocking the light of the solar cells 31, but also increase the light-receiving area of ​​the solar cells 31. It can also utilize the light from the gaps between the multiple solar cells 31. The reflective structure 12 at the gaps can reflect the light from the gaps onto the solar cells 31, thereby further improving the light utilization rate of the solar cells 31 and improving the power generation efficiency of the photovoltaic module 100.

[0074] Furthermore, the backsheet 20 is located behind the front glass 10. The backsheet 20 can be set as the back glass, and both the front glass 10 and the backsheet 20 can be made using the same manufacturing method as the glass of the photovoltaic module 100. Moreover, a cavity 13 is formed between the reflective structure 12 and the glass body 11. This allows the reflective structure 12 of the optical functional cavity 13 to better increase the reflection effect, enabling light to be reflected onto the solar cell 31 through a certain path, thereby improving the absorption of light by the photovoltaic module 100.

[0075] Therefore, the front glass 10 of the photovoltaic module 100 is mainly composed of a glass body 11 and a reflective structure 12, which can reduce assembly steps and simplify the process flow, avoid the use of reflective film and film application machine, thereby improving the production efficiency of photovoltaic module 100 and reducing production costs.

[0076] According to some embodiments of the present invention, such as Figure 2 As shown, the front glass 10 also includes an adhesive 50, which is bonded between the back of the glass body 11 and the reflective structure 12.

[0077] The adhesive 50 is applied to the glass body 11, and the reflective structure 12 is applied to the adhesive 50. This makes the connection between the reflective structure 12 and the glass body 11 more stable and firm, and also makes the reflective structure 12 and the glass body 11 a whole.

[0078] According to some embodiments of the present invention, the gap includes a first gap 311 extending along a first direction and a second gap 312 extending along a second direction. The first gap 311 and the second gap 312 are perpendicular to each other and connected. The reflective structure 12 corresponds to the first gap 311 and the second gap 312 respectively.

[0079] In this arrangement, multiple battery strings 30 are arranged in rows and columns. The first direction can be the length direction of the photovoltaic module 100, and the corresponding second direction is the width direction of the photovoltaic module 100. The first direction and the second direction are perpendicular. For example, the battery strings 30 extend along the first direction, and multiple battery strings 30 are arranged along the second direction. In this way, the first gap 311 and the second gap 312 between multiple battery cells 31 are perpendicular to each other and connected to form an intersecting cross-shaped gap.

[0080] Furthermore, the reflective structure 12 corresponds to the first gap 311 and the second gap 312 respectively, which can better reflect the light from the first gap 311 and the second gap 312 to the solar cell 31, thereby further improving the power generation efficiency of the photovoltaic module 100.

[0081] According to some embodiments of the present invention, the reflective structure 12 includes: a first reflective structure 122 and a second reflective structure 123, wherein the first reflective structure 122 corresponds to the first gap 311 and the second reflective structure 123 corresponds to the second gap 312, and the first reflective structure 122 and the second reflective structure 123 are stacked at the connection between the corresponding first gap 311 and the second gap 312.

[0082] The first reflective structure 122 and the second reflective structure 123 are stacked at the connection points of the first gap 311 and the second gap 312. In this way, the first reflective structure 122 and the second reflective structure 123 can reflect the light from the first gap 311 and the second gap 312, make full use of the light from the gaps between the battery strings 30, and increase the contact area between the reflective structure 12 and the light at the gaps.

[0083] According to another embodiment of the present invention, the reflective structure 12 includes: a first reflective structure 122 and a second reflective structure 123, the first reflective structure 122 corresponding to the first gap 311, the second reflective structure 123 corresponding to the second gap 312, the first reflective structure 122 also corresponding to the connection between the first gap 311 and the second gap 312, and adjacent second reflective structures 123 connected to opposite sides of the first reflective structure 122.

[0084] The first reflective structure 122 also corresponds to the connection between the first gap 311 and the second gap 312. In this way, the first reflective structure 122 can reflect the light at the connection between the first gap 311 and the second gap 312. The adjacent second reflective structure 123 is connected to the opposite sides of the first reflective structure 122, so that it can further reflect the light from the gap of the battery string 30.

[0085] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0086] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0087] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for manufacturing photovoltaic module glass, characterized in that, include: Acquisition carrier; The reflective material is attached to the carrier; The reflective material is made into a reflective structure; The reflective structure is fixed to the surface of the glass body to form a cavity, and the reflective structure and the carrier are separated to obtain the glass.

2. The method for manufacturing photovoltaic module glass according to claim 1, characterized in that, The step of fabricating the reflective material into a reflective structure includes: The surface of the reflective material is pressed to form multiple reflective units arranged in rows and columns; The reflective material is cured to manufacture the reflective structure.

3. The method for manufacturing photovoltaic module glass according to claim 2, characterized in that, The step of pressing a reflective pattern of multiple reflective units onto the surface of the reflective material includes: Multiple reflective units are pressed onto the surface of the reflective material using a pressing roller with a reflective pattern.

4. The method for manufacturing photovoltaic module glass according to claim 1, characterized in that, Prior to the step of attaching the reflective material to the carrier, the method further includes: The surface of the carrier is pretreated to increase adhesion.

5. The method for manufacturing photovoltaic module glass according to claim 4, characterized in that, The pretreatment includes: corona treatment or coating with an adhesion promoter.

6. The method for manufacturing photovoltaic module glass according to claim 1, characterized in that, The reflective material includes a UV-resistant coating and a reflective layer; The step of attaching the reflective material to the carrier includes: The UV-resistant coating is applied to the carrier; The reflective layer is coated onto the UV-resistant coating.

7. The method for manufacturing photovoltaic module glass according to claim 1, characterized in that, The steps of fixing the reflective structure to the surface of the glass body to form a cavity, and separating the reflective structure from the carrier to obtain the glass include: The reflective structure is bonded to the surface of the glass body; Separate the reflective structure from the carrier; The reflective structure is cured onto the glass body to obtain the glass.

8. The method for manufacturing photovoltaic module glass according to claim 7, characterized in that, The step of bonding the reflective structure to the surface of the glass body includes: The surface of the glass body is coated with an adhesive; The reflective structure is bonded to the adhesive.

9. The method for manufacturing photovoltaic module glass according to claim 1, characterized in that, The carrier is a release film.

10. A photovoltaic module, characterized in that, include: Front glass; A back panel, located behind the front glass; A battery string, located between the front glass and the back panel, the battery string comprising multiple battery cells with gaps formed between the multiple battery cells; An adhesive film is located between the front glass and the battery string, and between the back plate and the battery string; Wherein, at least one of the front glass and the back panel is manufactured using the photovoltaic module glass manufacturing method according to any one of claims 1-9, and the reflective structure corresponds to the gap.

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