Silk-screen photovoltaic glass

Abstract

The utility model belongs to the technical field of photovoltaic glass, and discloses silk-screen photovoltaic glass which comprises a glass substrate, one end of the back surface of the glass substrate is provided with a backboard layer, the front end of the glass substrate is provided with a photovoltaic cell layer, one side of the photovoltaic cell layer is provided with an antireflection coating, the outer surface of the glass substrate is fixedly provided with a heat dissipation frame, and the heat dissipation frame is provided with a heat dissipation layer. The upper end and the lower end of the heat dissipation frame are each provided with a plurality of heat dissipation grooves, the inner surfaces of the heat dissipation grooves are each fixedly connected with a plurality of heat dissipation fins, the heat dissipation grooves and the heat dissipation fins on the same transverse side are jointly and fixedly connected with heat conduction pipes, and the two heat conduction pipes are attached to a glass base body. According to the utility model, through the arrangement of the heat dissipation frame, under the synergistic effect of the heat dissipation grooves, the heat dissipation fins and the heat conduction pipes, the heat generated by the glass can be rapidly conducted out, the heat dissipation efficiency is obviously improved, the performance loss of the photovoltaic glass caused by high temperature is effectively avoided, and the stable photoelectric conversion performance of the photovoltaic glass is maintained.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic glass technology, specifically screen-printed photovoltaic glass. Background Technology

[0002] With the increasing global demand for clean energy, the photovoltaic industry has experienced rapid development. As a crucial component of photovoltaic modules, photovoltaic glass's performance has a critical impact on the overall module's power generation efficiency and lifespan. Traditional photovoltaic glass primarily functions to protect photovoltaic cells and allow light transmission; however, with advancements in photovoltaic technology, the functional requirements for photovoltaic glass are becoming increasingly stringent.

[0003] Meanwhile, the patent specification with application number CN215644519U discloses an ultra-thin photovoltaic glass, "including a glass panel and a back panel, wherein the glass panel and the back panel have a screen-printed ink layer, the surface of the ink layer has multiple battery placement slots, multiple battery cells are placed in the battery placement slots, and an EVA film layer is bonded to the top surface of the multiple battery cells and the back panel, and the glass panel is bonded to the surface of the EVA film layer. This utility model limits the battery cells by using battery placement slots, so even if the glass EVA film layer becomes liquid due to excessive temperature after being irradiated, the battery cells will not shift under the action of the battery placement slots. Therefore, there is no need to add another layer of EVA film between the battery cells and the back panel, making the finished product thinner and lighter after installation. At the same time, this utility model adopts a dual structure of inner and outer frame at the frame."

[0004] Most existing photovoltaic glass has poor heat dissipation performance during use. When photovoltaic glass is exposed to high temperature for a long time, it will not only accelerate its own aging, but also reduce the photoelectric conversion efficiency and affect the overall power generation efficiency. Secondly, the fixing method during transportation is not stable enough, and the glass is prone to bumps and wear due to vibration and shaking, which greatly increases the product defect rate and increases production costs.

[0005] Therefore, screen-printed photovoltaic glass is proposed to address the above issues. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides screen-printed photovoltaic glass, which effectively avoids performance loss caused by high temperatures, maintains stable photoelectric conversion performance, greatly enhances the stability of photovoltaic glass during transportation, reduces damage caused by vibration and shaking, lowers product defect rate, and saves costs.

[0007] To achieve the above objectives, this utility model provides the following technical solution: screen-printed photovoltaic glass, comprising a glass substrate, a backplate layer at one end of the back side of the glass substrate, a photovoltaic cell layer at the front end of the glass substrate, an anti-reflection coating on one side of the photovoltaic cell layer, a heat sink fixedly mounted on the outer surface of the glass substrate, a plurality of heat sink grooves at both the upper and lower ends of the heat sink, a plurality of heat sink fins fixedly connected to the inner surface of the plurality of heat sink grooves, a heat pipe fixedly connected to the plurality of heat sink grooves and the plurality of heat sink fins on the same horizontal side, two heat pipes being in contact with the glass substrate, and a transfer frame snapped onto the outer surface of the heat sink.

[0008] Preferably, the backsheet layer is made of polyvinyl fluoride film composite material, and the antireflective coating is an ink layer, wherein the ink is made of nano-silica modified acrylic resin base material.

[0009] Preferably, each end of the transfer frame has two through slots, the inner surface of each of the four through slots has an extension slot, the inner surface of each of the four through slots is slidably connected with a snap-fit ​​rod, and the outer surface of the heat sink frame has a snap-fit ​​groove for use with the four snap-fit ​​rods.

[0010] Preferably, the diameter of the through groove is smaller than the diameter of the extension groove.

[0011] Preferably, a return spring is wound around the outer surface of the locking rod, a limiting plate is fixedly sleeved on the outer surface of the locking rod, the limiting plate is slidably connected to the extension groove, one end of the return spring is fixedly connected to one end of the limiting plate, and the other end of the return spring is fixedly connected to one side inner wall of the extension groove.

[0012] Preferably, the snap-fit ​​rod has two grooves on its outer surface outside the transfer frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. By setting up a heat dissipation frame, the heat generated by the glass can be quickly conducted away under the synergistic effect of heat dissipation grooves, heat dissipation fins and heat pipes, which can significantly improve heat dissipation efficiency, effectively avoid performance loss of photovoltaic glass caused by high temperature and maintain its stable photoelectric conversion performance.

[0015] 2. By setting up a transfer frame, the heat sink frame can be firmly locked in place during transfer with the cooperation of the locking rod and the locking groove. This greatly enhances the stability of the photovoltaic glass during transfer, reduces damage caused by vibration and shaking, lowers the product defect rate, and saves costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the overall structure of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0019] Figure 4 This is a cross-sectional structural diagram of the heat sink and transfer frame of this utility model.

[0020] In the diagram: 1. Heat sink; 11. Through slot; 12. Heat pipe; 13. Snap-fit ​​slot; 14. Anti-reflective coating; 141. Backplate layer; 142. Heat dissipation groove; 143. Photovoltaic cell layer; 144. Glass substrate; 145. Heat dissipation fins;

[0021] 2. Transfer frame; 21. Connecting rod; 22. Limiting plate; 23. Extension groove; 24. Return spring; 25. Groove. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 4 As shown, this utility model provides screen-printed photovoltaic glass, including a glass substrate 144. A backplate layer 141 is provided at one end of the back side of the glass substrate 144, and a photovoltaic cell layer 143 is provided at the front end of the glass substrate 144. An anti-reflection coating 14 is provided on one side of the photovoltaic cell layer 143. A heat sink 1 is fixedly installed on the outer surface of the glass substrate 144. Several heat sink grooves 142 are provided at both the upper and lower ends of the heat sink 1. Several heat sink fins 145 are fixedly connected to the inner surfaces of the several heat sink grooves 142. Several heat sink grooves 142 on the same horizontal side are connected to several... The heat dissipation fins 145 are fixedly connected to the heat pipes 12. The two heat pipes 12 are attached to the glass substrate 144. The back plate layer 141 can provide protection for the back of the glass substrate 144. The photovoltaic cell layer 143 is used to realize photoelectric conversion. The anti-reflection coating 14 can reduce light reflection and improve light energy utilization. The combination of the heat dissipation frame 1 and its heat dissipation groove 142, heat dissipation fins 145 and heat pipes 12 can efficiently remove heat and ensure the stable operation of the photovoltaic glass. The transfer frame 2 facilitates the handling and transfer of the product. The outer surface of the heat dissipation frame 1 is snapped with the transfer frame 2.

[0024] Specifically, the backsheet layer 141 is made of polyvinyl fluoride film composite material, and the antireflective coating 14 is an ink layer. The ink uses nano-silica modified acrylic resin as the base material. The backsheet layer 141 of polyvinyl fluoride film composite material has good weather resistance and water resistance, which can extend the service life of photovoltaic glass. The ink antireflective coating 14 using nano-silica modified acrylic resin as the base material not only has excellent antireflective effect, but also has good adhesion, is not easy to fall off, and can ensure long-term light energy absorption efficiency.

[0025] like Figures 1 to 4 As shown, each end of the transfer frame 2 has two through slots 11, and the inner surface of each of the four through slots 11 has an extension slot 23. The inner surface of each of the four through slots 11 is slidably connected with a snap-fit ​​rod 21. The outer surface of the heat sink 1 has a snap-fit ​​groove 13 that works with the four snap-fit ​​rods 21, so that the transfer frame 2 and the heat sink 1 are firmly connected and can prevent them from separating accidentally during the transfer process, thus ensuring the safety of the photovoltaic glass during transportation.

[0026] Furthermore, the diameter of the through groove 11 is smaller than the diameter of the extension groove 23, which can limit the locking rod 21 and prevent excessive displacement of the locking rod 21, thereby further enhancing the reliability of the connection between the transfer frame 2 and the heat sink frame 1.

[0027] like Figures 1 to 4 As shown, a return spring 24 is wound around the outer surface of the locking rod 21, and a limiting plate 22 is fixedly sleeved on the outer surface of the locking rod 21. The limiting plate 22 is slidably connected to the extension groove 23. One end of the return spring 24 is fixedly connected to one end of the limiting plate 22, and the other end of the return spring 24 is fixedly connected to one side of the inner wall of the extension groove 23. This allows the locking rod 21 to automatically reset after being locked into or released from the locking groove 13, making operation more convenient. At the same time, it maintains a stable connection and release state, improving the ease of use of the transfer frame 2.

[0028] It is worth noting that the locking rod 21 has two grooves 25 on its outer surface outside the transfer frame 2. The grooves 25 on the outer surface of the locking rod 21 make it easier for the operator to apply force and control the sliding of the locking rod 21 more easily, thereby improving the work efficiency of installing and disassembling the transfer frame 2.

[0029] Working principle and process: During use, sunlight shines on the screen-printed photovoltaic glass. The anti-reflective coating 14 reduces light reflection, allowing more light energy to be absorbed by the photovoltaic cell layer 143, which then converts the light energy into electrical energy. The heat generated during operation is conducted to the heat dissipation fins 145 through the heat pipes 12 attached to the glass substrate 144. The heat dissipation fins 145 then dissipate the heat quickly with the help of air circulation in the heat dissipation grooves 142, maintaining a stable operating temperature for the photovoltaic glass. When the photovoltaic glass needs to be moved, the locking rod 21 is pulled by the groove 25, causing the locking rod 21 to overcome the spring force of the return spring 24 and retract into the extension groove 23, thus disengaging it from the locking groove 13 of the heat dissipation frame 1. This allows the transfer frame 2 to be installed or disassembled, facilitating the handling of the photovoltaic glass.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screen-printed photovoltaic glass, comprising a glass substrate (144), characterized in that: A back plate layer (141) is provided at one end of the back of the glass substrate (144), a photovoltaic cell layer (143) is provided at the front end of the glass substrate (144), an anti-reflection coating (14) is provided on one side of the photovoltaic cell layer (143), a heat sink frame (1) is fixedly installed on the outer surface of the glass substrate (144), a plurality of heat sink grooves (142) are provided at both the upper and lower ends of the heat sink frame (1), a plurality of heat sink fins (145) are fixedly connected to the inner surface of the plurality of heat sink grooves (142), a plurality of heat sink grooves (142) and a plurality of heat sink fins (145) are fixedly connected to a heat pipe (12) on the same horizontal side, two heat pipes (12) are attached to the glass substrate (144), and a transfer frame (2) is snapped onto the outer surface of the heat sink frame (1).

2. The screen-printed photovoltaic glass according to claim 1, characterized in that: The backplate layer (141) is made of polyvinyl fluoride film composite material, and the anti-reflective coating (14) is an ink layer. The ink uses nano-silica modified acrylic resin base material.

3. The screen-printed photovoltaic glass according to claim 1, characterized in that: The transfer frame (2) has two through slots (11) at both ends, and the inner surfaces of the four through slots (11) are provided with extension slots (23). The inner surfaces of the four through slots (11) are slidably connected with snap-fit ​​rods (21). The outer surface of the heat sink (1) is provided with snap-fit ​​slots (13) for use with the four snap-fit ​​rods (21).

4. The screen-printed photovoltaic glass according to claim 3, characterized in that: The diameter of the through groove (11) is smaller than the diameter of the extension groove (23).

5. The screen-printed photovoltaic glass according to claim 3, characterized in that: A return spring (24) is wound around the outer surface of the snap-fit ​​rod (21). A limit plate (22) is fixedly sleeved on the outer surface of the snap-fit ​​rod (21). The limit plate (22) is slidably connected to the extension groove (23). One end of the return spring (24) is fixedly connected to one end of the limit plate (22). The other end of the return spring (24) is fixedly connected to one side inner wall of the extension groove (23).

6. The screen-printed photovoltaic glass according to claim 5, characterized in that: The snap-fit ​​rod (21) has two grooves (25) on its outer surface outside the transfer frame (2).

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