Packaging structure for photovoltaic building integrated photovoltaics (BIPV) glass assembly
By using materials such as silicone rubber in the edge sealing and fixing structures of photovoltaic BIPV glass modules, the problems of glass edge breakage and high defect rate in traditional encapsulation methods have been solved, achieving high yield and aesthetically pleasing product production.
Patent Information
- Application Number
- CN202422192496.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-09-06
AI Technical Summary
In existing technologies, traditional encapsulation methods often result in spillage of butyl rubber from the autoclave, which can cause the material to stick to the vacuum bag, leading to glass edge breakage, increasing operational difficulty and defect rate.
The edge sealing and fixing structure is adopted, using silicone rubber, natural rubber or polyurethane materials for edge sealing and fixing with high-temperature PET tape to seal the four sides of the photovoltaic BIPV glass module. Vent holes are set to facilitate venting and prevent cross-linking materials from sticking to the vacuum bag.
It effectively prevents cross-linked materials from pulling and damaging the glass edges, improves the product yield to over 95%, enhances appearance quality, and simplifies the production process.
Smart Images
Figure CN223515243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of architectural glass technology, and specifically to a packaging structure for photovoltaic BIPV glass modules. Background Technology
[0002] Building Integrated Photovoltaics (BIPV) technology integrates photovoltaic modules into buildings, enabling them to not only generate electricity but also function as building materials. This technology replaces rooftops, exterior walls, windows, and fences with photovoltaic modules, allowing them to function as building materials and generate electricity simultaneously. It truly achieves the low-carbon, energy-saving, and environmentally friendly characteristics of modern buildings, meeting architectural requirements in terms of mechanics, thermal comfort, lighting, and sound insulation, and is now widely used.
[0003] Due to aesthetic requirements such as overall architectural effect and harmony, the specifications and dimensions of BIPV components required for various buildings differ, with even greater variations in thickness. For safety reasons, national building curtain wall standards stipulate that single-pane glass must be greater than 5mm. This makes the production of BIPV components extremely difficult, requiring repeated parameter adjustments and process modifications for different models before final production. Furthermore, BIPV components consist of double-layered glass, and secondary repairs are not allowed after lamination. This results in a large number of test samples being produced in each batch, mainly exhibiting problems such as voids, air bubbles, edge delamination, and incomplete PVB curing. Currently, to solve these quality issues, BIPV components must enter an autoclave after leaving the laminator and undergo secondary pressure treatment to remove air bubbles. However, traditional encapsulation methods using butyl rubber from the autoclave result in overflow material adhering to the vacuum bag, causing glass edge breakage during cleaning, stretching of the butyl rubber, uneven edges, and severe glue shortages, significantly increasing operational difficulty and posing a major challenge to production. Summary of the Invention
[0004] In view of this, the present invention provides a packaging structure for photovoltaic BIPV glass modules, which solves the technical problem in the prior art where, when using butyl rubber to exit the autoclave, overflowing material adheres to the vacuum bag, causing the glass edges to break during the cleaning process. This not only greatly increases the difficulty of operation but also increases the product defect rate.
[0005] This invention provides a packaging structure for a photovoltaic BIPV glass module. The packaging structure includes: a photovoltaic chip; a second intermediate film disposed on the photovoltaic chip; an inner glass substrate disposed on the second intermediate film, wherein the photovoltaic chip, the second intermediate film, and the inner glass substrate are laminated together to form a photovoltaic BIPV glass module; an edge sealing structure disposed on the side of the photovoltaic BIPV glass module; and a fixing structure disposed on the side of the edge sealing structure away from the photovoltaic BIPV glass module, wherein the fixing structure is used to fix the edge sealing structure to one side of the photovoltaic BIPV glass module.
[0006] In one possible implementation, the sealing structure is made of silicone rubber, natural rubber, or polyurethane material.
[0007] In one possible implementation, the edge sealing structure has multiple vent holes; the thickness of the edge sealing structure is 1mm to 50mm; and the width of the edge sealing structure is 10mm to 30mm.
[0008] In one possible implementation, the fixing structure is a high-temperature adhesive tape.
[0009] In one possible implementation, the fixing structure includes: a fixing plate disposed around the photovoltaic BIPV glass assembly; and a clamping plate, one end of which is fixed to the fixing plate, and the other end of which is used to clamp the outer glass substrate and the inner glass substrate of the photovoltaic BIPV glass assembly, so that the fixing plate is fixed around the photovoltaic BIPV glass assembly.
[0010] In one possible implementation, the packaging structure further includes: an outer glass substrate; a first intermediate film covering the glass film surface of the outer glass substrate; a photovoltaic chip covering the first intermediate film; and a second intermediate film covering the photovoltaic chip.
[0011] An inner glass substrate is formed by covering the second intermediate film with the photovoltaic chip, the second intermediate film, and the inner glass substrate. The photovoltaic chip, the second intermediate film, and the inner glass substrate are laminated together to form a photovoltaic BIPV glass module. An edge sealing structure is provided on the side of the photovoltaic BIPV glass module. A fixing structure is provided on the side of the edge sealing structure away from the photovoltaic BIPV glass module. The fixing structure is used to fix the edge sealing structure to one side of the photovoltaic BIPV glass module.
[0012] In one possible implementation, the first intermediate film and the second intermediate film are PVB, SGP, or EVA; the thickness of the first intermediate film and the second intermediate film is 0.7mm-2.5mm.
[0013] In one possible implementation, the outer glass substrate and the inner glass substrate are ultra-clear glass or ordinary glass, and the thickness of the outer glass substrate and the inner glass substrate is 6mm-25mm.
[0014] In one possible implementation, the photovoltaic chip is a copper indium gallium selenide (CIGS) photovoltaic glass or a cadmium telluride (CdTe) photovoltaic glass.
[0015] This utility model provides a packaging structure for a photovoltaic BIPV glass module. The packaging structure includes: a photovoltaic chip; a second intermediate film disposed on the photovoltaic chip; an inner glass substrate disposed on the second intermediate film, wherein the photovoltaic chip, the second intermediate film, and the inner glass substrate are laminated together to form a photovoltaic BIPV glass module; an edge sealing structure disposed on the side of the photovoltaic BIPV glass module; and a fixing structure disposed on the side of the edge sealing structure away from the photovoltaic BIPV glass module, wherein the fixing structure is used to fix the edge sealing structure around the photovoltaic BIPV glass module. The edge-sealing structure is used to seal the four sides of the assembled photovoltaic BIPV glass module and fix the edge-sealing structure to the four sides of the photovoltaic BIPV glass module. Butyl rubber can be sealed inside the photovoltaic BIPV glass module. When the photovoltaic BIPV glass module is vacuumed, the sealant at the edge of the glass is evenly encapsulated at the edge of the photovoltaic BIPV glass module, making up for the misalignment and overlap at the edge of the glass. It effectively solves the problem of adhesion between the cross-linked materials (including but not limited to butyl rubber, intermediate film, etc.) generated during the high-pressure process of photovoltaic BIPV glass module and the vacuum bag. Not only will it not be pulled or damaged by the cross-linked materials, leading to water vapor erosion, it will greatly improve the product yield. Moreover, it can make the cross-linked materials straight, improve the appearance quality of the product, make the product more beautiful, and the process is simple and easy to mass-produce. Attached Figure Description
[0016] Figure 1 The image shown is a side view of a photovoltaic BIPV glass module provided in an embodiment of this utility model;
[0017] Figure 2 The diagram shown is a structural schematic of an edge-sealing material provided in an embodiment of this application;
[0018] Figure 3 The image shown is a side view of a photovoltaic BIPV glass module and fixing structure provided in an embodiment of this application.
[0019] Explanation of reference numerals in the attached figures:
[0020] 100, Outer glass substrate; 200, First intermediate film; 300, Photovoltaic chip; 400, Second intermediate film; 500, Inner glass substrate; 600, Crosslinking agent; 700, Edge sealing structure; 701, Vent hole; 800, Fixing structure; 801, Fixing plate; 802, Clamping plate. Detailed Implementation
[0021] In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, top, bottom, etc.) in the embodiments of this utility model are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.
[0022] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Figure 1 The image shown is a side view of a photovoltaic BIPV glass module provided in an embodiment of this application; as shown Figure 1As shown, the encapsulation structure includes: a photovoltaic chip 300; a second intermediate film 400 disposed on the photovoltaic chip 300; an inner glass substrate 500 disposed on the second intermediate film 400; the photovoltaic chip 300, the second intermediate film 400, and the inner glass substrate 500 are laminated together to form a photovoltaic BIPV glass module; an edge sealing structure 700 disposed on the side of the photovoltaic BIPV glass module; and a fixing structure 800 disposed on the side of the edge sealing structure 700 away from the photovoltaic BIPV glass module, the fixing structure 800 being used to fix the edge sealing structure 700 to one side of the photovoltaic BIPV glass module. This application uses an edge-sealing structure 700 to seal the four sides of the assembled photovoltaic BIPV glass module and fixes the edge-sealing structure 700 to the four sides of the photovoltaic BIPV glass module. This seals the butyl rubber inside the photovoltaic BIPV glass module. During the vacuuming process of the photovoltaic BIPV glass module, the sealant at the glass edge is evenly encapsulated at the edge of the photovoltaic BIPV glass module, compensating for the misalignment and overlap at the glass edge. This effectively solves the problem of adhesion between the cross-linked materials (butyl rubber, interlayer film) generated during the high-pressure process of the photovoltaic BIPV glass module and the vacuum bag. Not only will the cross-linked materials not be pulled or damaged, leading to water vapor erosion, it greatly improves the product yield. Moreover, it can make the cross-linked materials straight, improving the appearance quality of the product and making the product more beautiful. The process is simple and easy to mass-produce.
[0025] In one possible implementation, the edge sealing structure 700 is made of silicone rubber, natural rubber, or polyurethane. The surface layer of silicone rubber, natural rubber, or polyurethane is hydrophobic, non-stick to many materials, and can act as a barrier. It also has low moisture absorption and can be processed and used under humid conditions.
[0026] Figure 2 The diagram shown is a structural schematic of an edge-sealing material provided in an embodiment of this application; as shown Figure 2 As shown, the edge sealing structure 700 has multiple vent holes 701; the thickness of the edge sealing structure 700 is 1mm to 50mm; the width of the edge sealing structure 700 is 10mm to 30mm. The multiple vent holes 701 on the edge sealing structure 700 facilitate the discharge of air from the photovoltaic BIPV glass module during the high-pressure exhaust process.
[0027] In one possible implementation, the fixing structure is high-temperature tape. The high-temperature PET tape can be wrapped around the outside of the sealing structure 700 to fix the sealing structure 700 to the side of the photovoltaic BIPV glass module.
[0028] In this application, the edge sealing structure 700 can be used directly, or the edge sealing structure 700 can be used first to seal the photovoltaic BIPV glass module, and then the edge sealing structure 700 can be fixed with high-temperature PET tape.
[0029] Figure 3 The image shown is a side view of a photovoltaic BIPV glass module and fixing structure provided in an embodiment of this application. Figure 3 As shown, the fixing structure includes: a fixing plate 801, which is disposed around the photovoltaic BIPV glass module; and a clamping plate 802, one end of which is fixed to the fixing plate 801, and the other end of which is used to clamp the outer glass substrate 700 and the inner glass substrate 800 of the photovoltaic BIPV glass module, so that the fixing plate 801 is fixed around the photovoltaic BIPV glass module. The fixing plate 801 is used to fix the edge sealing structure 700. The fixing plate 801 is rotatably connected to the clamping plates 802 disposed on both sides of the fixing plate 801, and is used to clamp the outer glass substrate 700 and the inner glass substrate 800 of the photovoltaic BIPV glass module.
[0030] In one possible implementation, the encapsulation structure further includes: an outer glass substrate; a first intermediate film covering the outer glass substrate in the glass film direction; a photovoltaic chip covering the first intermediate film; a second intermediate film covering the photovoltaic chip; an inner glass substrate covering the second intermediate film, wherein the photovoltaic chip, the second intermediate film, and the inner glass substrate are laminated together to form a photovoltaic BIPV glass module; an edge sealing structure provided on the side of the photovoltaic BIPV glass module; and a fixing structure provided on the side of the edge sealing structure away from the photovoltaic BIPV glass module, wherein the fixing structure is used to fix the edge sealing structure to one side of the photovoltaic BIPV glass module.
[0031] In one possible implementation, the first and second intermediate films are PVB, SGP, or EVA; the thickness of the first and second intermediate films is 0.7 mm to 2.5 mm.
[0032] In one possible implementation, the outer glass substrate and the inner glass substrate are ultra-clear glass or ordinary glass, and the thickness of the outer glass substrate and the inner glass substrate is 6mm-25mm.
[0033] In one possible implementation, the photovoltaic chip is either copper indium gallium selenide (CIGS) photovoltaic glass or cadmium telluride (CdTe) photovoltaic glass.
[0034] Before the photovoltaic BIPV glass module is sent to the autoclave for venting, the four sides of the laminated photovoltaic BIPV glass module are sealed using an edge-sealing structure 700. Vent holes 701 are evenly distributed on the edge-sealing material 700. During the vacuuming and high-pressure processes, the butyl sealant used in the lamination process is sealed by the edge-sealing material 700. Because of the vent holes 701 on the edge-sealing material 700, the venting of the photovoltaic BIPV glass module during vacuuming and high-pressure processes is not affected. During the high-pressure process, the edge-sealing material 700 is used to seal the laminated photovoltaic BIPV glass module. By sealing the four sides of the PV glass module, the resulting cross-linked materials (butyl rubber, interlayer film, etc.) will not adhere to the vacuum bag, greatly improving the product yield. The yield of photovoltaic BIPV glass modules produced using existing technology is less than 60%. However, by using the sealing structure 700 to seal the four sides of the photovoltaic BIPV glass module and using the fixing component 800 to fix the sealing material to the four sides of the photovoltaic BIPV glass module, the yield can be increased to over 95%. Moreover, the process is simple and easy to mass-produce.
[0035] Example 1
[0036] The encapsulation method for double-laminated photovoltaic BIPV glass modules is as follows:
[0037] I. Sandwich Process
[0038] (1) Laying out the outer glass substrate and the first intermediate film
[0039] Lay a 6mm outer glass substrate (ultra-clear glass) flat on the platform, then lay a 1.52mm thick first intermediate film (polyvinyl butyral) flat on the upper surface of the outer glass substrate (ultra-clear glass), and remove the excess edge material of the outer glass substrate to make the edges neat and the surface flat, which is convenient for subsequent application of sealing material.
[0040] (2) Installing photovoltaic chips (cadmium telluride power generation glass) and copper foil busbars: Place a photovoltaic chip (cadmium telluride power generation glass) with a thickness of 3.2mm on the first intermediate film (polyvinyl butyral) in (1), with the light-receiving surface of the photovoltaic chip (cadmium telluride power generation glass) facing down and in contact with the first intermediate film (polyvinyl butyral), and the film surface of the photovoltaic chip (cadmium telluride power generation glass) facing up, and then place copper foil on the film surface of the photovoltaic chip (cadmium telluride power generation glass);
[0041] (3) Applying butyl sealant: After the copper foil is applied, apply butyl sealant to the edge of the photovoltaic chip (cadmium telluride power generation glass). The butyl sealant is evenly applied 3mm away from the edge of the photovoltaic chip (cadmium telluride power generation glass). The width of the butyl sealant is 8mm and the thickness of the butyl sealant is 1.5mm.
[0042] (4) Laying the second intermediate film and inner glass substrate: The prepared 1.52mm thick PVB second intermediate film is laid flat on the 6mm thick cadmium telluride power generation glass, centered and laid in one go, ensuring that there is excess second intermediate film on each side protruding from the edge of the outer glass substrate. After confirming that there is no error, the inner glass substrate is placed smoothly on the second intermediate film, and the excess edge material of the second intermediate film is removed to make the four sides of the photovoltaic BIPV glass module neat. Then it is placed in the lamination room for lamination.
[0043] (5) Applying sealing material: The four sides of the assembled photovoltaic BIPV glass module are sealed with sealing material. The sealing material is silicone rubber. The silicone rubber is cut into strips with a width of 20mm and a thickness of 10mm. It is sealed around the four sides of the photovoltaic BIPV glass module. The upper edge of the silicone rubber is in the middle of the outer glass substrate, and the lower edge of the silicone rubber is in the middle of the inner glass substrate. In order to allow the gas inside the photovoltaic BIPV glass module to be discharged, vent holes are opened on the sealing material. The vent holes are evenly distributed so that the gas can be discharged slowly and evenly, and the butyl rubber can also be prevented from deforming.
[0044] (6) Setting up the fixing structure: Use high-temperature PET tape to fix the sealing material. Wrap the high-temperature PET tape around the side of the photovoltaic BIPV glass module and evenly wrap the sealing material around the side of the photovoltaic BIPV glass module.
[0045] II. Lamination Process
[0046] The composite photovoltaic BIPV glass module is fused together under high temperature and pressure, fusing the inner glass substrate, outer glass substrate and copper foil together.
[0047] (1) Set up a vacuum bag: Wrap the laminated photovoltaic BIPV glass module with a high-pressure bag, and set one or more air extraction ports on the glass surface. Connect the air extraction ports to the air pump and perform air extraction at normal temperature and pressure.
[0048] (2) Loading into the autoclave: When the evacuation pressure reaches 90±3pa, place the photovoltaic BIPV glass module flat on the support frame of the autoclave. Do not put it in upright to prevent damage to the edge sealing material or fixed structure. Keep the evacuation process running throughout the high-pressure process.
[0049] (3) First stage constant temperature: In the high pressure reactor, the temperature is raised from room temperature to 60℃, the pressure is set to 0.1Mpa, and maintained for 10 minutes;
[0050] (4) Second stage of constant temperature: In the high-pressure reactor, the temperature is raised to 100℃ and the pressure is set to 0.3Mpa for 130 minutes. This constant temperature stage is to allow the gas to be discharged slowly and evenly to prevent the butyl rubber from deforming.
[0051] (5) Third stage constant temperature: In the high pressure reactor, the temperature is raised to 140℃ and the pressure is set to 1.2Mpa, and maintained for 90 minutes;
[0052] (6) Cooling and depressurization: Reduce the pressure in (5) to balance with atmospheric pressure, and gradually cool down to 40°C. Then remove the photovoltaic BIPV glass module from the autoclave.
[0053] Example 2
[0054] The encapsulation method for a single-laminated photovoltaic BIPV glass module is as follows:
[0055] (1) Install photovoltaic chips (cadmium telluride power generation glass) and copper foil busbars: Place the prepared photovoltaic chips (cadmium telluride power generation glass) on the platform with the light-receiving surface of the photovoltaic chips (cadmium telluride power generation glass) facing down and the film surface of the photovoltaic chips (cadmium telluride power generation glass) facing up, and place copper foil on the film surface of the photovoltaic chips (cadmium telluride power generation glass).
[0056] (2) Applying butyl sealant: After the copper foil is applied, apply butyl sealant to the edge of the photovoltaic chip (cadmium telluride power generation glass). The butyl sealant is evenly applied 3mm away from the edge of the cadmium telluride power generation glass. The width of the butyl sealant is 8mm and the thickness of the butyl sealant is 1.5mm.
[0057] (3) Laying the interlayer film and inner glass substrate: The prepared 1.52mm thick PVB interlayer film is laid flat on the upper surface of the 6mm thick ultra-white glass substrate, and the excess edge material is removed to make the surface flat and the edges as neat as possible. Then it is placed in the lamination room for lamination.
[0058] (4) Applying edge sealing material: Apply silicone rubber edge sealing material evenly around the sides of the photovoltaic BIPV glass module to seal the edges of the photovoltaic BIPV glass module;
[0059] (5) Setting up the fixing structure: The high-temperature PET tape is evenly placed on the edge of the silicone rubber, and the silicone rubber sealing material is evenly fixed on the edge of the photovoltaic BIPV glass module.
[0060] II. Lamination Process
[0061] (1) Set up a vacuum bag: Wrap the laminated photovoltaic BIPV glass module with a high-pressure bag, and set one or more air extraction ports on the glass surface. Connect the air extraction ports to the air pump and perform air extraction at normal temperature and pressure.
[0062] (2) Loading into the autoclave: When the evacuation pressure reaches 90±3pa, place the photovoltaic BIPV glass module flat on the support frame of the autoclave. Do not put it in upright to prevent damage to the edge sealing material or fixed structure. Keep the evacuation process running throughout the high-pressure process.
[0063] (3) First stage constant temperature: In the high pressure reactor, the temperature is raised from room temperature to 60℃, the pressure is set to 0.1Mpa, and maintained for 10 minutes;
[0064] (4) Second stage of constant temperature: In the high-pressure reactor, the temperature is raised to 100℃ and the pressure is set to 0.15Mpa for 130 minutes. This constant temperature stage is to allow the gas to be discharged slowly and evenly to prevent the butyl rubber from deforming.
[0065] (5) Third stage constant temperature: In the high pressure reactor, the temperature is raised to 140℃ and the pressure is set to 1.2Mpa, and maintained for 90 minutes;
[0066] (6) Cooling and depressurization: Reduce the pressure in (5) to balance with atmospheric pressure, and gradually cool down to 40°C. Then remove the photovoltaic BIPV glass module from the autoclave.
[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications or equivalent substitutions made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A packaging structure for photovoltaic BIPV glass modules, characterized in that, The packaging structure includes: Photovoltaic chip (300); A second intermediate film (400) is disposed on the photovoltaic chip (300); An inner glass substrate (500) is disposed on a second intermediate film (400). The photovoltaic chip (300), the second intermediate film (400) and the inner glass substrate (500) are laminated together to form a photovoltaic BIPV glass module. An edge sealing structure (700) is provided on the side of the photovoltaic BIPV glass module; A fixing structure (800) is provided on the side of the edge sealing structure (700) away from the photovoltaic BIPV glass module. The fixing structure (800) is used to fix the edge sealing structure (700) around the photovoltaic BIPV glass module.
2. The encapsulation structure for photovoltaic BIPV glass modules according to claim 1, characterized in that, The edge sealing structure (700) is made of silicone rubber, natural rubber, or polyurethane.
3. The encapsulation structure for photovoltaic BIPV glass modules according to claim 2, characterized in that, The edge sealing structure (700) has multiple vent holes, the thickness of the edge sealing structure is 1mm to 50mm, and the width of the edge sealing structure is 10mm to 30mm.
4. The encapsulation structure for photovoltaic BIPV glass modules according to claim 1, characterized in that, The fixing structure (800) is a high-temperature tape.
5. The encapsulation structure for photovoltaic BIPV glass modules according to claim 1, characterized in that, The fixing structure (800) includes: a fixing plate (801), which is disposed around the photovoltaic BIPV glass module; A clamping plate (802) is provided, one end of which is fixed to the fixing plate (801), and the other end of which is used to clamp the outer glass substrate (100) and inner glass substrate (500) of the photovoltaic BIPV glass assembly, so that the fixing plate (801) is fixed around the photovoltaic BIPV glass assembly.
6. A packaging structure for photovoltaic BIPV glass modules according to any one of claims 1-5, characterized in that, The packaging structure also includes: Outer glass substrate (100); A first intermediate film (200) is applied to the outer glass substrate (100) in the direction of the glass film surface. A photovoltaic chip (300) having a first intermediate film (200) coated on it; A second intermediate film (400) is applied to the photovoltaic chip (300); An inner glass substrate (500) is covered on a second intermediate film (400). The photovoltaic chip (300), the second intermediate film (400) and the inner glass substrate (500) are laminated together to form a photovoltaic BIPV glass module. A fixing structure (800) is provided on the side of the edge sealing structure (700) away from the photovoltaic BIPV glass module. The fixing structure (800) is used to fix the edge sealing structure (700) to one side of the photovoltaic BIPV glass module.
7. The encapsulation structure for photovoltaic BIPV glass modules according to claim 6, characterized in that, The first intermediate membrane (200) and the second intermediate membrane (400) are PVB, SGP, or EVA; The thickness of the first intermediate film (200) and the second intermediate film (400) is 0.7 mm to 2.5 mm.
8. The encapsulation structure for photovoltaic BIPV glass modules according to claim 7, characterized in that, The outer glass substrate (100) and the inner glass substrate (500) are ultra-clear glass or ordinary glass, and the thickness of the outer glass substrate (100) and the inner glass substrate (500) is 6mm-25mm.
9. The encapsulation structure for photovoltaic BIPV glass modules according to claim 8, characterized in that, The photovoltaic chip is either copper indium gallium selenide (CIGS) photovoltaic glass or cadmium telluride (CdTe) photovoltaic glass.