Photovoltaic laminated power generation glass and photovoltaic power generation window

By setting phase-change microcapsules in the hollow aluminum partition strip of the photovoltaic stacked power generation glass, the problem of temperature increase in the hollow cavity in the photovoltaic stacked power generation glass is solved, temperature regulation and heat management are achieved, service life is extended and photoelectric conversion efficiency is improved.

CN222916532UActive Publication Date: 2025-05-27FAR EAST HENG FAI FACADE (ZHUHAI) LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423077796.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-05-27
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

The heat generated by existing photovoltaic stacked power generation glass during the conversion of light into electricity of solar cells leads to an increase in the temperature of the hollow cavity, resulting in an increase in indoor temperature, an increase in air conditioning energy consumption, aging of sealant and adhesive films, and a decrease in battery attenuation and photoelectric conversion efficiency.

Method used

By setting phase change microcapsules in the hollow aluminum partition strip, the temperature regulation function is realized, the heat diffusion of heat into the room is reduced, and the temperature is kept within a certain range.

Benefits of technology

It effectively reduces the diffusion of heat into the room, keeps the temperature within a reasonable range, extends the service life of sealant strips and solar cell cells, and improves the photoelectric conversion efficiency to a certain extent.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222916532U_ABST
    Figure CN222916532U_ABST
Patent Text Reader

Abstract

The utility model provides photovoltaic laminated power generation glass and a photovoltaic power generation window, the photovoltaic laminated power generation glass comprises a first glass layer, a second glass layer and a third glass layer which are stacked in sequence, and a first cavity is formed between the second glass layer and the third glass layer. The solar cell module further comprises solar cells, hollow aluminum parting strips, sealing rubber strips, drying agent particles and phase change microcapsules. The solar cell piece is arranged between the first glass layer and the second glass layer, hollow aluminum division bars are arranged in intervals of the periphery of the second glass layer and the periphery of the third glass layer, and air holes are formed in the sides, facing the first cavity, of the hollow aluminum division bars. The sealing rubber strip covers the side, back to the first cavity, of the hollow aluminum partition strip and seals the periphery of the second glass layer and the periphery of the third glass layer. And the drying agent particles and the phase change microcapsules are mixed and filled in the cavity of the hollow aluminum parting strip. According to the power generation glass, the temperature adjusting function can be achieved through the phase change microcapsules arranged in the hollow aluminum partition strips, indoor diffusion of heat is reduced, the service life of all parts can be prolonged, and the photoelectric conversion efficiency can be improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the technical field of photovoltaic laminated glass, and more specifically, to a photovoltaic laminated power generation glass and a photovoltaic power generation window. Background Art

[0002] Photovoltaic laminated power generation glass is a glass component integrated with a solar power generation function. It generally consists of multiple pieces of tempered glass, glue film, and solar cell wafers, and has a long service life and high power generation efficiency. Such a component not only serves as a power generation device but also plays the role of a building structure, having structural strength and durability, a low annual attenuation rate, and strong weather resistance and corrosion resistance.

[0003] Existing photovoltaic laminated power generation glass generally includes first, second, and third tempered glasses stacked in sequence. Between the first and second tempered glasses, two layers of glue film are used to encapsulate the solar cell wafers in the middle through a high-temperature lamination process to form a photovoltaic laminated glass. Under the effective support of an aluminum spacer, the second and third tempered glasses are sealed at the edges with a sealant to form a hollow cavity.

[0004] However, heat is generated during the process of light being converted into electricity by the solar cell wafers. This heat causes the temperature in the hollow cavity between the second and third tempered glasses to rise, which will bring some problems. On the one hand, the heat in the hollow cavity diffuses into the room with a lower temperature, resulting in an increase in the room temperature and an increase in air conditioning energy consumption. On the other hand, if the temperature rise in the cavity is not promptly diffused and absorbed, it will accelerate the aging of the sealant and glue film, battery attenuation, and a reduction in the photoelectric conversion efficiency, reducing the service life of the hollow laminated glass. Summary of the Utility Model

[0005] The purpose of this application is to provide a photovoltaic laminated power generation glass and a photovoltaic power generation window, which can achieve a temperature regulation function through phase change microcapsules arranged in the hollow aluminum spacer, reduce the diffusion of heat into the room, keep the temperature within a certain range, help improve the service life of each component, and can improve the photoelectric conversion efficiency to a certain extent.

[0006] In a first aspect, a photovoltaic laminated power generation glass provided by this application includes a first glass layer, a second glass layer, and a third glass layer stacked in sequence. A first cavity is formed between the second glass layer and the third glass layer. It also includes solar cell wafers, a hollow aluminum spacer, a sealant strip, desiccant particles, and phase change microcapsules.

[0007] The solar cell is disposed between the first glass layer and the second glass layer. A hollow aluminum spacer is disposed in the peripheral space between the second glass layer and the third glass layer. The hollow aluminum spacer is provided with air vents on the side facing the first cavity. A sealing strip covers the side of the hollow aluminum spacer facing away from the first cavity and seals the peripheral space between the second glass layer and the third glass layer. Desiccant particles and phase change microcapsules are mixed and filled in the cavity of the hollow aluminum spacer. Among them, the phase change microcapsules include a shell and a phase change material filled in the shell.

[0008] In an implementable solution, the filling ratio of the desiccant particles to the phase change microcapsules is t, and the value range of t is 0.25 - 4.

[0009] In an implementable solution, the cavity of the hollow aluminum spacer is an integral cavity.

[0010] In an implementable solution, the cavity of the hollow aluminum spacer is divided into at least two non - communicating cavities, and the desiccant particles and the phase change microcapsules are in different cavities.

[0011] In an implementable solution, the hollow aluminum spacer includes a first accommodating cavity and a second accommodating cavity. The second accommodating cavity is wrapped in the first accommodating cavity and is non - communicating with the first accommodating cavity; the desiccant particles are filled in the first accommodating cavity, and the phase change microcapsules are filled in the second accommodating cavity.

[0012] In an implementable solution, the surface of the hollow aluminum spacer facing the first cavity is set as an inclined surface.

[0013] In an implementable solution, the side of the hollow aluminum spacer in contact with the sealing strip is provided with a fin structure; the sealant is filled in the gaps between the second glass layer, the third glass layer and the fin structure, and forms a sealing strip after curing.

[0014] In an implementable solution, in the fin structure, at least part of the sections of at least some of the fin structures are inclined.

[0015] In an implementable solution, the photovoltaic laminated power - generating glass further includes a pre - embedded pipe, which is disposed at the bottom position where the second glass layer and the third glass layer are butted. It passes through the sealing strip, the hollow aluminum spacer and communicates with the first cavity, and the end of the pre - embedded pipe away from the first cavity is blocked by a sealing plug, and the surface of the sealing plug is covered with a sealing strip.

[0016] In an implementable solution, the first glass layer is a colored glaze frosted glass with a light transmittance of 60 - 90%.

[0017] In an implementable solution, both sides of the solar cell are adhesively bonded to the surfaces of the first glass layer and the second glass layer respectively through a transparent intermediate adhesive film.

[0018] In an implementable solution, a second cavity is formed between the first glass layer and the second glass layer; a front aluminum spacer is arranged in the peripheral space between the first glass layer and the second glass layer. The front aluminum spacer has the same structure as the hollow aluminum spacer, and a sealing strip is covered on the side of the front aluminum spacer facing away from the second cavity; the solar cell is placed in the second cavity and attached to the surface on the side of the first glass layer.

[0019] In an implementable solution, a mixture of desiccant particles and phase change microcapsules is filled in the front aluminum spacer.

[0020] In an implementable solution, the proportion of phase change microcapsules in the front aluminum spacer is greater than that in the hollow aluminum spacer.

[0021] In a second aspect, the present application further provides a photovoltaic power generation window, including a window frame and the aforementioned photovoltaic laminated power generation glass, and the photovoltaic laminated power generation glass is hermetically installed around in the window frame.

[0022] Compared with the prior art, the beneficial effects of the technical solution of the present application at least include the following aspects:

[0023] In the photovoltaic laminated power generation glass of the present application, a solar cell is arranged between the first glass layer and the second glass layer, and a mixture of desiccant particles and phase change microcapsules is filled in the hollow aluminum spacer between the second glass layer and the third glass layer. Among them, the desiccant particles play roles such as anti-frost, cleaning, and drying, while the temperature regulation function of the phase change microcapsules endows the insulating glass with the functions of heat storage and heat release, so as to adjust the too high or too low temperature in the first cavity between the second glass layer and the third glass layer, thereby keeping the temperature in the first cavity within a reasonable range as much as possible. It can not only reduce the diffusion of heat into the room without increasing the indoor cooling or heating power consumption, but also improve the service life of the sealing strip and the solar cell, and can improve the photoelectric conversion efficiency to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 FIG. is a cross-sectional view of a photovoltaic laminated power generation glass shown according to an embodiment of the present application.

[0026] Figure 2 is Figure 1 a partial enlarged schematic view of the structure at A in

[0027] Figure 3 is Figure 1 a partial enlarged view of the bottom hollow aluminum spacer of the photovoltaic laminated power generation glass in

[0028] Figure 4 a cross-sectional view of the first hollow aluminum spacer having multiple cavities shown according to an embodiment of the present application.

[0029] Figure 5 a cross-sectional view of the second hollow aluminum spacer having multiple cavities shown according to an embodiment of the present application.

[0030] Figure 6 a cross-sectional view of a hollow aluminum spacer having an inclined inner side surface shown according to an embodiment of the present application.

[0031] Figure 7 a cross-sectional view of a hollow aluminum spacer having a fin structure provided on an outer side surface shown according to an embodiment of the present application.

[0032] Figure 8 a cross-sectional view of a photovoltaic laminated power generation glass having a pre-embedded pipe shown according to an embodiment of the present application.

[0033] Figure 9 a cross-sectional view of a photovoltaic laminated power generation glass having two glass cavities shown according to an embodiment of the present application.

[0034] In the figure:

[0035] 1, first glass layer; 2, second glass layer; 3, third glass layer; 101, first cavity; 102, second cavity; 4, solar cell; 5, hollow aluminum spacer; 51, first accommodation cavity; 52, second accommodation cavity; 53, fin structure; 6, sealing strip; 7, desiccant particles; 8, phase change microcapsules; 9, pre-embedded pipe; 91, sealing plug; 10, transparent intermediate adhesive film; 11, front aluminum spacer; 12, inner encapsulation layer. Detailed Embodiments

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0038] As Figure 1 and Figure 2 shown, an embodiment of the present application provides a photovoltaic laminated power generation glass, which includes a first glass layer 1, a second glass layer 2, and a third glass layer 3 stacked in sequence, and further includes a solar cell 4, a hollow aluminum spacer 5, a sealant strip 6, desiccant particles 7, and a phase change microcapsule 8.

[0039] Among them, the solar cell 4 is disposed between the first glass layer 1 and the second glass layer 2. A first cavity 101 is formed between the second glass layer 2 and the third glass layer 3. The hollow aluminum spacer 5 is disposed at intervals in the peripheral edges of the second glass layer 2 and the third glass layer 3, and the hollow aluminum spacer 5 effectively supports the second glass layer 2 and the third glass layer 3. The hollow aluminum spacer 5 is provided with ventilation holes on the side facing the first cavity 101. The sealant strip 6 covers the side of the hollow aluminum spacer 5 facing away from the first cavity 101 and seals the peripheral edge intervals of the second glass layer 2 and the third glass layer 3 to maintain the airtightness inside the first cavity 101. The desiccant particles 7 and the phase change microcapsule 8 are mixed and filled in the cavity of the hollow aluminum spacer 5. Among them, the phase change microcapsule 8 includes a shell and a phase change material filled in the shell.

[0040] It should be noted that the phase change material (PCM) is a kind of substance that can change its phase state (solid, liquid, gas) at a specific temperature and can provide latent heat. The process of changing the phase state of the substance is called the phase change process, and at this time, a large amount of latent heat is absorbed or released by the phase change material, thereby generating the functions of cold storage or heat storage.

[0041] In this embodiment, the shell included in the phase change microcapsule 8 encapsulates the phase change material in a tiny capsule, avoiding the influence of the external environment on the phase change material. When these materials change from solid to liquid or vice versa, they can absorb or release heat with almost constant temperature, thereby achieving the effect of autonomous temperature regulation. The shell can be made of, but not limited to, one or a combination of melamine formaldehyde, polyurethane, polyacrylate, gelatin, gum arabic, etc. The phase change material can be made of, but not limited to, docosane, tetradecanol, octadecane, tetradecane, etc.

[0042] In the photovoltaic laminated power generation glass of the present embodiment, the hollow aluminum spacer 5 between the second glass layer 2 and the third glass layer 3 is mixed and filled with desiccant particles 7 and phase change microcapsules 8. The desiccant particles 7 play the role of anti-frost, cleaning, drying, etc., and the temperature regulating function of the phase change microcapsules 8 gives the hollow glass the function of heat storage and heat release to adjust the excessively high or low temperature in the first cavity 101 between the second glass layer 2 and the third glass layer 3, so as to keep the temperature in the first cavity 101 within a reasonable range as much as possible, which can reduce the diffusion of heat into the room without increasing the indoor cooling or heating power consumption, and at the same time can also increase the service life of the sealing strip 6 and the solar cell 4, and can improve the photoelectric conversion efficiency to a certain extent.

[0043] Specifically, when the solar cell 4 generates a large amount of heat in the process of converting light into electricity, the temperature of the first cavity 101 between the second glass layer 2 and the third glass layer 3 increases. At the same time, direct sunlight will also increase the temperature in the cavity. The increased temperature is greater than the phase change temperature of the phase change material. At this time, the phase change material in the phase change microcapsule 8 changes from solid to liquid (or liquid to gas), absorbs and stores excess heat, and thus reduces the temperature in the first cavity 101. When the temperature of the first cavity 101 is lower than the phase change temperature of the phase change material, the phase change material in the phase change microcapsule 8 changes from liquid to solid (or gas to liquid), and releases the stored heat to maintain the temperature in the first cavity 101 within a certain range.

[0044] In one embodiment, the solar cell 4 may be a thin film battery such as cadmium telluride, copper indium gallium selenide, gallium arsenide and perovskite. Cadmium telluride thin film battery is preferred, as the technology of cadmium telluride thin film battery is relatively mature, and it has good characteristics such as high absorption efficiency and low material cost, and its application scenarios are more extensive than other types of batteries.

[0045] In one embodiment, the first glass layer 1, the second glass layer 2 and the third glass layer 3 can be made of ordinary glass, preferably semi-tempered glass (or heat-strengthened glass) or tempered glass. Tempered glass and semi-tempered glass each have their own advantages and disadvantages, and the selection needs to be considered comprehensively based on the specific application scenario, safety requirements, cost budget and long-term performance requirements. For applications that pursue high safety standards and long-term stability, tempered glass may be a more suitable choice; while for applications that are cost-sensitive and have high requirements for processability and flatness, semi-tempered glass may be more suitable.

[0046] In one embodiment, the first glass layer 1 can be a frosted glass with a light transmittance of 10-90%, preferably 60-90%, to ensure the photoelectric conversion efficiency. It is understandable that which side of the glass is set as the glazed surface or the frosted surface can be determined according to the owner's requirements and appearance effects, and meet the aesthetic requirements of the building appearance while ensuring the safety and reliability of various performances.

[0047] In one embodiment, the filling ratio of the desiccant particles 7 to the phase change microcapsules 8 can be t, and the value range of t is 0.25 to 4. For example, the filling ratio of the desiccant particles 7 to the phase change microcapsules 8 can be 1:1, 2:1, 3:1, 4:1, 1:2, 1:3 or 1:4. In addition, the phase change microcapsules 8 can select different phase change temperatures according to the application scenario. For buildings, the phase change microcapsules 8 with a phase change temperature of 24 to 30 °C are generally selected.

[0048] In one embodiment, as Figure 3 shown, the cavity of the hollow aluminum spacer 5 can be an integral cavity, and the desiccant particles 7 and the phase change microcapsules 8 are mixed in a connected cavity.

[0049] In one embodiment, as Figure 4 shown, the cavity of the hollow aluminum spacer 5 can be divided into at least two non-connected cavities, and the desiccant particles 7 and the phase change microcapsules 8 are in different cavities.

[0050] In one embodiment, as Figure 5 shown, the hollow aluminum spacer 5 includes a first accommodation cavity 51 and a second accommodation cavity 52. The second accommodation cavity 52 is wrapped in the first accommodation cavity 51, and the second accommodation cavity 52 is not connected to the first accommodation cavity 51; the desiccant particles 7 are filled in the first accommodation cavity 51, and the phase change microcapsules 8 are filled in the second accommodation cavity 52. In this way, if the phase change microcapsules 8 turn into a liquid state and the shell of the phase change microcapsules 8 breaks, the phase change microcapsules 8 can still be in a separate cavity, avoiding affecting the performance of the desiccant particles 7.

[0051] In one embodiment, as Figure 6 shown, the surface of the hollow aluminum spacer 5 facing the first cavity 101 is set as an inclined surface to increase the contact area with the first cavity 101, so as to enhance the performance of the desiccant particles 7 and the phase change microcapsules 8.

[0052] In one embodiment, as Figure 7 shown, a fin structure 53 is provided on the surface of the hollow aluminum spacer 5 in contact with the sealing strip 6; the sealing glue is filled in the gaps between the second glass layer 2 and the third glass layer 3 and the fin structure 53, and forms the sealing strip 6 after curing. The fin structure 53 can increase the stability and sealing performance of the sealing strip 6, and at the same time, the hollow aluminum spacer 5 can also be stabilized by means of the sealing strip 6.

[0053] In one embodiment, as Figure 7 shown, at least part of the fin structure 53 in the fin structure 53 is inclined to increase the contact area between the fin structure 53 and the sealing strip 6, and enhance the fixing and sealing effects of the sealing strip 6.

[0054] In one embodiment, as Figure 8 shown, the photovoltaic laminated power generation glass further includes a pre-embedded pipe 9, which is arranged at the bottom position where the second glass layer 2 and the third glass layer 3 are butted, passes through the sealing strip 6 and the hollow aluminum spacer 5 and communicates with the first cavity 101, and one end of the pre-embedded pipe 9 away from the first cavity 101 is blocked by a sealing plug 91, and the surface of the sealing plug 91 is covered with the sealing strip 6.

[0055] It can be understood that if water or dust enters the first cavity 101 between the second glass layer 2 and the third glass layer 3 and the desiccant particles 7 alone cannot achieve drying and cleaning, the power generation glass can be removed at this time, the sealant on the surface of the sealing plug 91 of the pre-embedded pipe 9 can be removed, and then the sealing plug 91 can be opened, and the first cavity 101 can be sucked and cleaned through the pre-embedded pipe 9, and then the sealing plug 91 can be reinstalled, and then the sealant can be covered again.

[0056] In one embodiment, as Figure 1 shown, both sides of the solar cell 4 are adhesively bonded to the surfaces of the first glass layer 1 and the second glass layer 2 through a transparent intermediate adhesive film 10.

[0057] In one embodiment, as Figure 9 shown, a second cavity 102 can be formed between the first glass layer 1 and the second glass layer 2. A front aluminum spacer 11 is arranged in the peripheral space between the first glass layer 1 and the second glass layer 2. The front aluminum spacer 11 has the same structure as the hollow aluminum spacer 5, and a sealing strip 6 is covered on the side of the front aluminum spacer 11 facing away from the second cavity 102. The solar cell 4 is placed in the second cavity 102 and attached to the surface on the side of the first glass layer 1. With the help of the second cavity 102, a certain degree of blocking and consumption of the overheated temperature can be carried out, so as to reduce the temperature adjustment pressure in the first cavity 101.

[0058] In addition, as Figure 9 shown, an inner encapsulation layer 12 can be arranged on the surface of the solar cell 4 away from the first glass layer 1. The inner encapsulation layer 12 can include a resin and a curing agent with a curing temperature lower than 100°C. The resin can include at least one of epoxy resin and silicone-modified epoxy resin, and the curing agent can include at least one of amine curing agent and anhydride curing agent. The amine curing agent can include at least one of polyamide, aliphatic amine, aromatic amine, alicyclic amine, polyether amine and imidazole, and the anhydride curing agent can include at least one of aromatic anhydride, aliphatic anhydride and alicyclic anhydride. If water or air enters the second cavity 102, the inner encapsulation layer 12 can reduce the corrosion rate of the solar cell 4 by water and oxygen and improve the service life of the solar cell 4.

[0059] In one embodiment, as Figure 9As shown, the front aluminum spacer 11 is filled with a mixture of desiccant particles 7 and phase change microcapsules 8, further enhancing the drying and cleaning ability and self-temperature regulation ability of the second cavity 102 between the first glass layer 1 and the second glass layer 2, and relieving the temperature regulation pressure in the first cavity 101.

[0060] In one embodiment, the proportion of the phase change microcapsules 8 in the front aluminum spacer 11 is greater than that in the hollow aluminum spacer 5. Generally, the temperature rises faster and is higher in the second cavity 102, and its drying performance is relatively good. Therefore, the proportion of the desiccant particles 7 can be reduced, and the proportion of the phase change microcapsules 8 can be increased to enhance the temperature regulation ability. The first cavity 101 is located at the rear side of the second cavity 102, with a relatively slow temperature rise and a relatively lower temperature, and its drying performance is weaker. Therefore, the proportion of the desiccant particles 7 can be increased to improve the drying and cleaning ability, and the proportion of the phase change microcapsules 8 can be appropriately reduced to ensure a certain temperature regulation ability.

[0061] The embodiment of the present application also provides a photovoltaic power generation window, which includes a window frame (not shown in the figure) and the photovoltaic laminated power generation glass provided in the above embodiment. The periphery of the photovoltaic laminated power generation glass is hermetically installed in the window frame. The photovoltaic power generation window installed with this photovoltaic power generation glass also has the good effects of the above photovoltaic power generation glass.

[0062] The above are only some embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A photovoltaic laminated power generation glass, comprising a first glass layer (1), a second glass layer (2) and a third glass layer (3) stacked in sequence, wherein a first cavity (101) is formed between the second glass layer (2) and the third glass layer (3); further comprising a solar cell (4) and a hollow aluminum spacer (5), wherein the solar cell (4) is arranged between the first glass layer (1) and the second glass layer (2), and the hollow aluminum spacer (5) is arranged in the interval around the second glass layer (2) and the third glass layer (3), and the hollow aluminum spacer (5) is provided with a ventilation hole on the side facing the first cavity (101); It is characterized in that The photovoltaic laminated power generation glass also includes: A sealing strip (6) covering the side of the hollow aluminum spacer (5) facing away from the first cavity (101) and sealing the periphery of the second glass layer (2) and the third glass layer (3); Desiccant particles (7) and phase change microcapsules (8) are mixed and filled in the cavity of the hollow aluminum spacer (5); wherein the phase change microcapsules (8) comprise a shell and a phase change material filled in the shell.

2. The photovoltaic laminated power generation glass according to claim 1, characterized in that: The cavity of the hollow aluminum spacer (5) is an integral cavity.

3. The photovoltaic laminated power generation glass according to claim 1, characterized in that: The cavity of the hollow aluminum spacer (5) is divided into at least two cavities that are not interconnected, and the desiccant particles (7) and the phase-change microcapsules (8) are located in different cavities.

4. The photovoltaic laminated power generation glass according to claim 3, characterized in that: The hollow aluminum spacer (5) comprises a first accommodating cavity (51) and a second accommodating cavity (52), wherein the second accommodating cavity (52) is enclosed in the first accommodating cavity (51), and the second accommodating cavity (52) is not connected to the first accommodating cavity (51); The desiccant particles (7) are filled in the first containing cavity (51), and the phase change microcapsules (8) are filled in the second containing cavity (52).

5. The photovoltaic laminated power generation glass according to claim 1, characterized in that: The surface of the hollow aluminum spacer (5) facing the first cavity (101) is arranged as an inclined surface.

6. The photovoltaic laminated power generation glass according to claim 1, characterized in that: A fin structure (53) is provided on the side of the hollow aluminum spacer (5) that contacts the sealing strip (6); the sealing strip (6) is formed after the sealing strip (6) is solidified by filling the gap between the second glass layer (2) and the third glass layer (3) and the fin structure (53).

7. The photovoltaic laminated power generation glass according to claim 6, characterized in that: In the fin structure (53), at least some sections of the fin structure (53) are inclined.

8. The photovoltaic laminated power generation glass according to claim 1, characterized in that: The photovoltaic laminated power generation glass further comprises a pre-buried tube (9), which is arranged at the bottom position where the second glass layer (2) and the third glass layer (3) are connected, and passes through the sealing strip (6) and the hollow aluminum spacer (5) and is connected to the first cavity (101), and one end of the pre-buried tube (9) away from the first cavity (101) is plugged by a sealing plug (91), and the surface of the sealing plug (91) covers the sealing strip (6).

9. The photovoltaic laminated power generation glass according to claim 1, characterized in that: The first glass layer (1) is a colored glaze frosted glass with a light transmittance of 60-90%.

10. The photovoltaic laminated power generation glass according to any one of claims 1 to 9, characterized in that: The two sides of the solar cell sheet (4) are respectively bonded to the surfaces of the first glass layer (1) and the second glass layer (2) via transparent intermediate adhesive films (10).

11. The photovoltaic laminated power generation glass according to any one of claims 1 to 9, characterized in that: A second cavity (102) is formed between the first glass layer (1) and the second glass layer (2); A front aluminum spacer (11) is arranged in the space between the four peripheral edges of the first glass layer (1) and the second glass layer (2); the front aluminum spacer (11) has the same structure as the hollow aluminum spacer (5), and the side of the front aluminum spacer (11) facing away from the second cavity (102) is covered with the sealing strip (6); The solar cell sheet (4) is placed in the second cavity (102) and is attached to a surface of one side of the first glass layer (1).

12. The photovoltaic laminated power generation glass according to claim 11, characterized in that: The front aluminum spacer (11) is filled with a mixture of the desiccant particles (7) and the phase change microcapsules (8).

13. The photovoltaic laminated power generation glass according to claim 12, characterized in that: The proportion of the phase-change microcapsules (8) in the front aluminum spacer (11) is greater than the proportion of the phase-change microcapsules (8) in the hollow aluminum spacer (5).

14. A photovoltaic power generation window, comprising a window frame, characterized in that: It also comprises the photovoltaic laminated power generation glass as claimed in any one of claims 1 to 13, wherein the photovoltaic laminated power generation glass is sealed on all sides and installed in the window frame.