Double overflow glue groove sealing system and full-screen light component frame device
By using a dual-overflow adhesive groove sealing system and a lightweight composite material frame device, the problems of sealing and lightweight structure of photovoltaic module frames were solved, achieving uniform adhesive layer and installation adaptability, thereby improving power generation efficiency and construction efficiency.
Patent Information
- Application Number
- CN202521565903.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-25
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-07-25
AI Technical Summary
Existing photovoltaic module frame devices suffer from problems such as poor sealing control, significant waste of adhesive materials, excessive weight, poor installation adaptability, and insufficient stability of laminated component connections, making it difficult to meet the requirements for efficient installation and full-screen applications.
The system employs a dual-overflow sealant system, including a sealant storage tank, a first inner overflow sealant tank, a first outer overflow sealant tank, a second inner overflow sealant tank, and a second outer overflow sealant tank. By precisely controlling the amount of sealant injected, a dual sealing barrier is formed. Combined with the lightweight composite material frame beam, this achieves uniform sealant thickness and structural stability.
It improves the reliability of sealing performance and the utilization rate of adhesive materials, reduces weight and cost, enhances installation flexibility and the self-cleaning ability of components, and improves power generation efficiency.
Smart Images
Figure CN224932160U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic module technology, and in particular to a dual overflow groove sealing system and a full-screen lightweight module frame device. Background Technology
[0002] In the photovoltaic module field, frame devices need to balance sealing, structural stability, and lightweight requirements. However, existing technologies have the following drawbacks: Existing frames use a single-layer adhesive groove structure, making it difficult to precisely control the amount of adhesive injected, leading to overflow or uneven adhesive thickness, which can cause sealing failure. For example, some frames require on-site adjustment of the adhesive thickness based on the side angle of the photovoltaic panel, which is cumbersome and wastes adhesive significantly. Existing conventional frames mostly use metal materials such as aluminum alloys, which, while ensuring rigidity, are heavy, increasing transportation and installation costs. Although some studies have reduced costs by simplifying the structure (such as combining laminated frames and support frames), the lightweighting effect is limited. Existing frame mounting hole designs are limited and cannot adapt to diverse scenarios. For example, fixed mounting plate structures cannot adjust the angle, requiring on-site grinding or custom frame manufacturing, significantly reducing construction efficiency. To achieve a borderless full-screen effect on the front of the module, the stable connection between the laminated components and the frame needs to be solved. Some existing technologies increase the contact area by tilting the mounting surface, but lack dynamic adjustment capabilities, limiting application flexibility.
[0003] It is evident that existing technologies have shortcomings in terms of sealing control of the adhesive groove structure, lightweight structure, installation adaptability, and connection stability of laminated components, making it difficult to simultaneously meet the requirements of efficient installation and full-screen application. Utility Model Content
[0004] This application provides a dual-overflow adhesive groove sealing system and a lightweight full-screen module frame device, which solves the problem of sealing failure caused by adhesive fluctuations in traditional single-groove structures, while enhancing the module's self-cleaning ability and improving power generation efficiency. The specific technical solution is as follows: In a first aspect, this utility model provides a dual overflow groove sealing system, characterized in that the system is embedded in a substrate having a vertical surface and a horizontal surface for connection with a photovoltaic module parallel to the horizontal surface, comprising: a storage groove, a first inner overflow groove, a first outer overflow groove, a second inner overflow groove, and a second outer overflow groove; the inner side of the first inner overflow groove and the first outer overflow groove are sequentially embedded in the vertical surface of the substrate from bottom to top, with the top of their opening sides flush with the horizontal surface, and the edge of the opening side of the first inner overflow groove is in contact with the horizontal surface of the substrate; the storage groove, the second inner overflow groove, and the second outer overflow groove are sequentially embedded in the horizontal surface of the substrate, with the top of their opening sides flush with the horizontal surface, the edge of the opening side of the storage groove is in contact with the vertical surface of the substrate, and the other edge of the opening side of the storage groove is in contact with the opening side of the second inner overflow groove.
[0005] Secondly, this utility model also provides a lightweight full-screen component frame device, including: a frame main beam, an adhesive storage groove, a dual overflow groove sealing system, mounting holes, fasteners, and a photovoltaic module. The dual overflow groove sealing system is disposed on the frame main beam, which serves as a base, and consists of a first inner overflow groove, a second inner overflow groove, a first outer overflow groove, and a second outer overflow groove. The frame main beam is provided with a plurality of mounting holes, which are connected to the inner side of the frame main beam by fasteners. The fasteners are used in conjunction with the mounting holes.
[0006] This invention features a double overflow groove structure on both sides of the upper frame of the main beam. The first and second inner overflow grooves are used for precise control of the sealant injection volume. The first and second outer overflow grooves are designed in a raised groove shape, which can accommodate more excess sealant during application, forming a double sealing barrier. This double overflow groove structure allows for controllable sealant thickness and uniform sealant distribution, ensuring reliable and consistent sealing performance while reducing sealant waste. Attached Figure Description
[0007] Figure 1 Cross-sectional view of the full-screen lightweight component frame device provided by this utility model; Figure 2 Enlarged view of the main beam of the frame provided for this utility model; Figure 3 A partially enlarged cross-sectional view of the double overflow groove sealing system provided by this utility model; Figure 4 A three-dimensional schematic diagram of the overall structure of the frame of the full-screen lightweight component provided by this utility model.
[0008] Label Explanation: 1. Frame main beam; 2. Adhesive storage groove; 3. First inner overflow groove; 4. First outer overflow groove; 5. Second inner overflow groove; 6. Second outer overflow groove; 7. Mounting hole; 8. Fastener; 9. Photovoltaic module; 101. Top border; 102. First bottom border; 103. Second bottom border; 104. First left border; 105. Second left border; 106. Right border. Detailed Implementation
[0009] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0010] See Figure 1 , Figure 2 and Figure 3 , Figure 1Cross-sectional view of the full-screen lightweight component frame device provided by this utility model. Figure 2 This is an enlarged view of the main beam of the frame provided by this utility model. Figure 3 This is a partially enlarged cross-sectional view of the double overflow groove sealing system provided by this utility model. Figure 1 , Figure 2 and Figure 3 As shown, the dual overflow adhesive tank sealing system provided by this utility model is embedded in a base with a vertical surface and a horizontal surface for connection with a photovoltaic module 9 parallel to the horizontal surface. It includes: an adhesive storage tank 2, a first inner overflow adhesive tank 3, a first outer overflow adhesive tank 4, a second inner overflow adhesive tank 5, and a second outer overflow adhesive tank 6.
[0011] The inner side of the first inner overflow adhesive groove 3 and the first outer overflow adhesive groove 4 are sequentially embedded in the vertical surface of the substrate from bottom to top, with the top of the opening side flush with the horizontal surface. The edge of the opening side of the first inner overflow adhesive groove 3 is in contact with the horizontal surface of the substrate.
[0012] The first inner overflow groove 3 and the first outer overflow groove 4 are connected to the second inner overflow groove 5 and the second outer overflow groove 6 with a 5°-10° inclined guide surface, which achieves physical connection. The first outer overflow groove 4 and the second outer overflow groove 6 are respectively positioned on the side closest to the first inner overflow groove 3 and the second inner overflow groove 5, and are lower than the horizontal plane of the first inner overflow groove 3 and the second inner overflow groove 5, forming a certain inclination angle with the first inner overflow groove 3 and the second inner overflow groove 5. The inclination angle of the guide surface is dynamically adjusted according to the fluidity of the sealant and the component installation method. Generally, a smaller inclination angle is used for high viscosity sealant or low-speed dispensing processes, while a larger inclination angle is used for low viscosity sealant or high-speed automated dispensing lines. The first outer overflow groove 4 and the second outer overflow groove 6 adopt a groove structure, which can accommodate more excess sealant during construction and form a double sealing barrier with the first inner overflow groove 3 and the second inner overflow groove 5, respectively.
[0013] The glue storage tank 2, the second inner overflow glue tank 5, and the second outer overflow glue tank 6 are sequentially embedded in the horizontal surface of the base, with the top of the opening side flush with the horizontal surface. The glue storage tank 2 serves as the main channel for sealant injection, with the edge of its opening side fitting against the vertical surface of the base, and the other edge of its opening side fitting against the opening side of the second inner overflow glue tank 5. The tank depth is set to 3-5mm, and the tank width is 5-8mm. The most suitable specifications can be selected according to actual production.
[0014] The glue injection process of the double overflow glue tank sealing system is as follows: A two-component silicone glue injection machine is used to continuously inject glue at a certain pressure. After the sealant is injected and fills the glue storage tank 2, the excess glue flows into the first inner overflow glue tank 3 and the second inner overflow glue tank 5 first, and is evenly spread through the guide surface. The residual glue breaks through the first inner overflow glue tank 3 and the second inner overflow glue tank 5 and is then contained by the first outer overflow glue tank 4 and the second outer overflow glue tank 6, forming a double-protection sealing layer.
[0015] See Figure 1 , Figure 2 and Figure 4 , Figure 1 Cross-sectional view of the full-screen lightweight component frame device provided by this utility model. Figure 2 This is an enlarged view of the main beam of the frame provided by this utility model. Figure 4 A three-dimensional schematic diagram of the overall structure of the frame of the full-screen lightweight component provided by this utility model. (See diagram below.) Figure 1 , Figure 2 and Figure 4 As shown, this utility model also provides a full-screen lightweight component frame device, including: a frame main beam 1, an adhesive storage groove 2, a double overflow groove sealing system, mounting holes 7, fasteners 8, and a photovoltaic module 9. The double overflow groove sealing system is set on the frame main beam, which serves as a base, and consists of a first inner overflow groove 3, a first outer overflow groove 4, a second inner overflow groove 5, and a second outer overflow groove 6. The frame main beam 1 is provided with a plurality of mounting holes 7, which are connected to the inner side of the frame main beam 1 by fasteners 8. The fasteners 8 are used in conjunction with the mounting holes 7.
[0016] Furthermore, the main frame 1 consists of an upper frame 101, a first lower frame 102, a second lower frame 103, a first left frame 104, a second left frame 105, and a right frame 106. The glue storage tank 2 is embedded in the L-shaped area formed by the second right side frame 105 and the second bottom frame 103; The bottom left side of the upper frame 101 is connected to the top of the first left frame 104, the inner side of the upper frame 101 is connected to the outer side of the first inner overflow adhesive groove 3 and the outer side of the first outer overflow adhesive groove 4, and the bottom right side of the upper frame 101 is connected to the top of the second left frame 105. The top inner side of the second left frame 105 is connected to the photovoltaic module 9, and the bottom of the second left frame 105 is connected to the top left side of the second lower frame 103. The top right side of the second bottom border 103 connects to the outer side of the right border 106; The top of the inner side of the right frame 106 is connected to the bottom of the photovoltaic module 9, and the bottom of the right frame 106 is connected to the top right side of the first lower frame 102. The top left side of the first bottom border 102 is connected to the bottom of the first left border 104.
[0017] The lightweight full-screen component frame is integrally die-cast from high-strength aluminum alloy or magnesium alloy-based composite material. Its cross-section has a hollow cavity structure, and the inner side wall of the cavity can be reinforced to improve bending strength.
[0018] The main beam 1 of the frame does not need to form a rectangular frame through end connectors to support the lightweight photovoltaic module 9. The edges of the photovoltaic module 9 are glued and embedded into the top groove of the upper frame 101 to achieve a flush frameless design. The cavity is filled with flame-retardant foam with a density of ≤0.3g / cm³. The frame wall thickness is 1-2.5mm, and the most suitable specification can be selected according to actual production.
[0019] The top surface of the upper frame 101 of the main beam 1 is anodized to form a hardened layer with a surface hardness ≥ HV300; the top of the upper frame 101 is provided with a 2° self-draining slope angle, and a frameless connection structure is formed with the edge of the photovoltaic module 9 by sealant.
[0020] Mounting holes 7 are standardized mounting holes arranged in parallel rows, with multiple rows arranged in an arithmetic sequence along the right frame. Pre-embedded nuts are built into the hole walls. Fasteners 8 are used in conjunction with mounting holes 7; fasteners 8 are 304 stainless steel hexagonal bolts with locking washers and anti-slip grooves on the bolt heads. In practical applications, different rows of holes can be selected to adapt to various installation scenarios such as roofs, floors, and curtain walls.
[0021] The assembly process of the full-screen lightweight component frame device is as follows: A suitable amount of glue is continuously injected along the glue storage groove 2 using a two-component silicone glue injection machine; the photovoltaic module 9 is glued and embedded into the groove on the top right side of the upper frame, with the gap between the edge of the photovoltaic module 9 and the top right side of the upper frame 101 ≤ 0.5mm, and appropriate pressure is applied to the edge of the photovoltaic module 9 to ensure full contact with the glue; after the glue cures, a continuous sealing strip is formed that runs through the first inner overflow glue groove 3 and the second inner overflow glue groove 5 and the first outer overflow glue groove 4 and the second outer overflow glue groove 6; the mounting hole 7 is selected according to the installation scenario, and the device is fixed by fasteners 8.
Claims
1. A double overflow groove sealing system, characterized in that, The system is embedded in a substrate with vertical and horizontal surfaces for connection with a photovoltaic module (9) parallel to the horizontal surface, and includes: a glue storage tank (2), a first inner glue overflow tank (3), a first outer glue overflow tank (4), a second inner glue overflow tank (5), and a second outer glue overflow tank (6). The inner side of the first inner overflow adhesive groove (3) and the first outer overflow adhesive groove (4) are sequentially embedded in the vertical surface of the substrate from bottom to top, and the top of the opening side is flush with the horizontal surface. The edge of the opening side of the first inner overflow adhesive groove (3) is in contact with the horizontal surface of the substrate. The glue storage tank (2), the second inner glue overflow tank (5), and the second outer glue overflow tank (6) are sequentially embedded on the horizontal surface of the base, with the top of the opening side flush with the horizontal surface. The edge of the opening side of the glue storage tank (2) is in contact with the vertical surface of the base, and the other edge of the opening side of the glue storage tank (2) is in contact with the opening side of the second inner glue overflow tank (5).
2. The system according to claim 1, characterized in that, An inclined guide surface is provided at the connection between the first inner overflow glue tank (3) and the second inner overflow glue tank (5) and the first outer overflow glue tank (4) and the second outer overflow glue tank (6), so that physical connection is achieved through the inclined guide surface. The side of the first inner overflow glue tank (3) and the second inner overflow glue tank (5) close to the first outer overflow glue tank (4) and the second outer overflow glue tank (6) is set lower than the horizontal plane of the first inner overflow glue tank (3) and the second inner overflow glue tank (5), forming a certain inclination angle with the first inner overflow glue tank (3) and the second inner overflow glue tank (5).
3. The system according to claim 2, characterized in that, The tilt angle of the guide surface is dynamically adjusted according to the fluidity of the sealant and the component installation method.
4. The system according to claim 3, characterized in that, The bottom edge of the photovoltaic module (9) is connected to the horizontal surface of the substrate through the glue storage tank (2), the second inner glue overflow tank (5) and the second outer glue overflow tank (6). The side of the photovoltaic module (9) perpendicular to the horizontal surface is connected to the vertical surface of the substrate through the first inner glue overflow tank (3) and the first outer glue overflow tank (4).
5. A lightweight component frame device for full-screen displays, characterized in that, The dual overflow groove sealing system as described in any one of claims 1-4 includes: The frame main beam (1), glue storage groove (2), double overflow glue groove sealing system, mounting hole (7), fastener (8), photovoltaic module (9) are provided. The double overflow glue groove sealing system is set on the frame main beam (1) as the base and consists of a first inner overflow glue groove (3), a second inner overflow glue groove (5), a first outer overflow glue groove (4), and a second outer overflow glue groove (6). The frame main beam (1) is provided with several mounting holes (7), which are connected to the inner side of the frame main beam (1) by fasteners (8). The fasteners (8) are used in conjunction with the mounting holes (7).
6. The apparatus according to claim 5, characterized in that, The main frame (1) consists of an upper frame (101), a first lower frame (102), a second lower frame (103), a first left frame (104), a second left frame (105), and a right frame (106). The glue storage tank (2) is embedded in the L-shaped area formed by the second left side frame (105) and the second lower side frame (103); The bottom left side of the upper frame (101) is connected to the top of the first left frame (104), the inner side of the upper frame (101) is connected to the outer side of the first inner overflow glue groove (3) and the outer side of the first outer overflow glue groove (4), and the bottom right side of the upper frame (101) is connected to the top of the second left frame (105). The top inner side of the second left frame (105) is connected to the photovoltaic module (9), and the bottom of the second left frame (105) is connected to the top left side of the second lower frame (103); The top right side of the second bottom border (103) connects to the outside of the right border (106); The top of the inner side of the right frame (106) is connected to the bottom of the photovoltaic module (9), and the bottom of the right frame (106) is connected to the top right side of the first lower frame (102); The top left side of the first bottom border (102) is connected to the bottom of the first left border (104).
7. The apparatus according to claim 6, characterized in that, The top of the upper frame (101) is provided with a 2° self-draining slope angle, and a flush frameless connection structure is formed with the edge of the photovoltaic module (9) by the sealant.
8. The apparatus according to claim 7, characterized in that, The top of the upper frame (101) is provided with an anodized hardening layer structure.
9. The apparatus according to claim 8, characterized in that, The main beam of the frame (1) is integrally die-cast using high-strength lightweight alloy or composite material.
10. The apparatus according to claim 9, characterized in that, The cross-section of the main beam (1) of the frame is a hollow cavity structure, and the hollow cavity is filled with flame-retardant foam.