Novel composite glass
By using a composite sandwich structure of ultra-clear glass outer substrate, cadmium telluride photovoltaic glass, and low-emissivity coated glass, the condensation problem of traditional photovoltaic glass has been solved, achieving improved high transmittance and heat insulation performance, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 信义节能玻璃(江门)有限公司
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-05
AI Technical Summary
When the performance of the vacuum spacer layer of traditional photovoltaic glass deteriorates, moisture can enter, leading to condensation and condensation, which affects the appearance and thermal insulation performance.
The composite interlayer consists of an outer layer of ultra-clear glass substrate, cadmium telluride power-generating glass, low-emissivity coated glass, and an inner layer of ultra-clear glass substrate, connected by PVB film. The vacuum spacer is filled with desiccant and supporting cylinders, and the vacuum evacuation port is connected to the vacuum spacer, forming a high-transparency and heat-insulating structure.
It reduces frost formation, improves permeability and service life, while maintaining stable indoor temperature and enhancing overall strength and sealing.
Smart Images

Figure CN224205529U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of glass technology, and specifically relates to a novel composite glass. Background Technology
[0002] Photovoltaic glass is a special type of glass that generates electricity using solar radiation by laminating solar cells into it. It also includes related current extraction devices and cables. It boasts advantages such as aesthetics, controllable light transmission, energy efficiency, and the ability to generate electricity without fuel, waste gas, residual heat, residue, or noise pollution. Photovoltaic vacuum glass typically consists of a single pane of glass and solar cells. However, traditional photovoltaic glass often uses polymer or organic coatings. If the vacuum spacer layer deteriorates, condensation can occur, allowing moisture to directly penetrate the glass substrate and the interior of the photovoltaic glass, leading to condensation and affecting both appearance and performance. Therefore, its thermal insulation performance is not ideal. Utility Model Content
[0003] This invention provides a novel composite glass to solve the problems mentioned in the background art.
[0004] This utility model provides the following technical solution: a novel composite glass, comprising an ultra-clear glass outer substrate, wherein cadmium telluride power generation glass, low-emissivity coated glass, and an ultra-clear glass inner substrate are fixedly connected to the ultra-clear glass outer substrate from left to right; a first connecting piece is provided between the ultra-clear glass outer substrate and the cadmium telluride power generation glass; a second connecting piece is provided between the cadmium telluride power generation glass and the low-emissivity coated glass; a vacuum spacer layer is reserved between the low-emissivity coated glass and the ultra-clear glass inner substrate; and a vacuum extraction port surrounds the outer substrate of the ultra-clear glass outer substrate, which is fixedly connected to the cadmium telluride power generation glass, the low-emissivity coated glass, and the ultra-clear glass inner substrate from left to right.
[0005] Both the first connecting piece and the second connecting piece are made of PVB film. The outer substrate of the ultra-white glass and the cadmium telluride power generation glass are bonded and fixed together by the first connecting piece, and the cadmium telluride power generation glass and the low-emissivity coated glass are bonded and fixed together by the second connecting piece.
[0006] The vacuum spacer layer has a support cylinder inside, and the two ends of the support cylinder are fixedly connected between the low-emissivity coated glass and the ultra-white glass inner substrate, respectively. There are several support cylinders arranged in a matrix.
[0007] The inner side of the vacuum spacer layer is filled with a desiccant.
[0008] The vacuum spacer layer has sealing sheets on both sides, which are fixedly connected between the low-emissivity coated glass and the ultra-clear glass inner substrate.
[0009] The ultra-white glass inner substrate has a vacuum extraction port on one side, and the vacuum extraction port is connected to the vacuum spacer layer.
[0010] The beneficial effects of this invention are as follows: A glass composite interlayer is formed by an outer ultra-clear glass substrate, cadmium telluride photovoltaic glass, low-emissivity coated glass, and an inner ultra-clear glass substrate. By incorporating the low-emissivity coated glass between the outer and inner ultra-clear glass substrates, the contact surface with the outside is reduced, mitigating the problem of frost formation on the low-emissivity coated glass surface. The high transmittance of the outer and inner ultra-clear glass substrates allows for maximum sunlight transmission after the composite structure is formed, providing sufficient illumination for the subsequent photovoltaic layer. Simultaneously, the low-emissivity coated glass between the outer and inner ultra-clear glass substrates reflects indoor heat after sunlight transmission, maintaining a stable indoor temperature. Therefore, the composite glass proposed in this invention improves transmittance and service life while ensuring overall strength after composite formation.
[0011] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] In the figure: 1. Outer substrate of ultra-clear glass; 2. First connecting piece; 3. Cadmium telluride power generation glass; 4. Second connecting piece; 5. Low-emissivity coated glass; 6. Vacuum spacer layer; 7. Inner substrate of ultra-clear glass; 8. Supporting cylinder; 9. Desiccant; 10. Edge sealing layer; 11. Vacuum extraction port. Detailed Implementation
[0014] Please see Figure 1 The present invention provides the following technical solution: a novel composite glass, comprising an ultra-clear glass outer substrate 1, wherein cadmium telluride power generation glass 3, low-emissivity coated glass 5 and an ultra-clear glass inner substrate 7 are fixedly connected to the ultra-clear glass outer substrate 1 from left to right, a first connecting piece 2 is provided between the ultra-clear glass outer substrate 1 and the cadmium telluride power generation glass 3, a second connecting piece 4 is provided between the cadmium telluride power generation glass 3 and the low-emissivity coated glass 5, a vacuum spacer layer 6 is reserved between the low-emissivity coated glass 5 and the ultra-clear glass inner substrate 7, and a vacuum extraction port 11 surrounds the ultra-clear glass outer substrate 1, wherein cadmium telluride power generation glass 3, low-emissivity coated glass 5 and the ultra-clear glass inner substrate 7 are fixedly connected to the ultra-clear glass outer substrate 1 from left to right.
[0015] In this embodiment, a glass composite interlayer is formed by an ultra-clear glass outer substrate 1, cadmium telluride photovoltaic glass 3, low-emissivity coated glass 5, and an ultra-clear glass inner substrate 7. By bonding the low-emissivity coated glass 5 between the ultra-clear glass outer substrate 1 and the ultra-clear glass inner substrate 7, the contact surface with the outside is reduced, thus reducing the problem of frost formation on the surface of the low-emissivity coated glass 5. The ultra-clear glass outer substrate 1 and the ultra-clear glass inner substrate 7 have high transmittance, which allows sunlight to pass through to the maximum extent after the composite structure is formed, providing sufficient light for the subsequent photovoltaic layer. At the same time, the low-emissivity coated glass 5 between the ultra-clear glass outer substrate 1 and the ultra-clear glass inner substrate 7 can reflect indoor heat after sunlight passes through, keeping the indoor temperature stable. The composite glass proposed by this utility model can improve its transmittance and service life while ensuring the overall strength after composite.
[0016] The outer substrate 1 and inner substrate 7 of the ultra-clear glass primarily protect the internal structure of the composite glass from external environmental influences. Simultaneously, due to the high light transmittance of the ultra-clear glass, it allows sunlight to pass through to the maximum extent, providing ample illumination for the subsequent photovoltaic layer. Furthermore, its high strength and weather resistance ensure long-term stability.
[0017] In this embodiment, both the first connecting piece 2 and the second connecting piece 4 are made of PVB film. The outer substrate 1 of the ultra-white glass and the cadmium telluride power generation glass 3 are bonded and fixed together by the first connecting piece 2, and the cadmium telluride power generation glass 3 and the low-emissivity coated glass 5 are bonded and fixed together by the second connecting piece 4.
[0018] The first connecting piece 2 serves as an intermediate connecting layer between the ultra-clear glass outer substrate 1 and the cadmium telluride photovoltaic glass 3. It not only bonds the ultra-clear glass outer substrate 1 and the cadmium telluride photovoltaic glass 3, but also, due to the insulating properties of the PVB film, prevents current leakage. The addition of the first connecting piece 2 improves the overall structure's sealing and durability. Similarly, the second connecting piece 4 between the cadmium telluride photovoltaic glass 3 and the low-emissivity coated glass 5 also serves as an adhesive and insulator, ensuring a tight fit and electrical isolation between the cadmium telluride photovoltaic glass 3 and the subsequent low-emissivity coated glass 5.
[0019] In this embodiment, a support cylinder 8 is provided inside the vacuum spacer layer 6. The two ends of the support cylinder 8 are fixedly connected between the low-emissivity coated glass 5 and the ultra-white glass inner layer substrate 7, respectively. There are several support cylinders 8 and they are distributed in a matrix.
[0020] Among them, low-emissivity coated glass 5 is used for heat insulation and reducing heat loss. Since the low-emissivity coating can effectively reflect indoor heat and maintain a stable indoor temperature, it can improve energy efficiency.
[0021] In this embodiment, the inner side of the vacuum spacer layer 6 is filled with a desiccant 9. The desiccant 9 is used to absorb water vapor after it enters the inner side of the vacuum spacer layer 6, thus preventing the direct formation of water condensation.
[0022] In this embodiment, sealing sheets 10 are provided on both sides of the vacuum spacer layer 6, and the sealing sheets 10 are fixedly connected between the low-emissivity coated glass 5 and the ultra-clear glass inner substrate 7.
[0023] In this embodiment, the vacuum spacer 6 is used to reduce heat conduction and convection, giving the composite glass structure excellent thermal insulation performance. At the same time, the edge sealing layer 10, by being welded between the low-emissivity coated glass 5 and the ultra-clear glass inner substrate 7, plays a role in improving the edge sealing effect of the vacuum spacer 6.
[0024] In this embodiment, a vacuum extraction port 11 is provided on one side of the ultra-white glass inner substrate 7, and the vacuum extraction port 11 is interconnected with the vacuum spacer layer 6. The supporting cylinder 8 helps maintain the spacing between the two glass layers and provides stable support. The vacuum extraction port 11 is used to fill the inner side of the vacuum spacer layer 6 with the supporting cylinder 8 and desiccant 9 and then perform vacuuming. After vacuuming is completed, the vacuum extraction port 11 is sealed by heat sealing.
[0025] The working principle of this utility model is as follows: a glass composite interlayer is formed by an outer substrate 1 of ultra-clear glass, a cadmium telluride photovoltaic glass 3, a low-emissivity coated glass 5, and an inner substrate 7 of ultra-clear glass. This reduces the problem of frost formation on the surface of the low-emissivity coated glass 5, while maintaining high transmittance. After the composite structure is formed, sunlight can be allowed to pass through to the maximum extent, providing sufficient light for the subsequent photovoltaic layer. At the same time, the overall strength of the composite is satisfied, and the service life is improved.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A novel composite glass, comprising an ultra-clear glass outer substrate (1), characterized in that: The outer substrate (1) of the ultra-white glass is fixedly connected from left to right with cadmium telluride power generation glass (3), low-emissivity coated glass (5) and ultra-white glass inner substrate (7). A first connecting piece (2) is provided between the outer substrate (1) of the ultra-white glass and the cadmium telluride power generation glass (3). A second connecting piece (4) is provided between the cadmium telluride power generation glass (3) and the low-emissivity coated glass (5). A vacuum spacer layer (6) is reserved between the low-emissivity coated glass (5) and the ultra-white glass inner substrate (7). The outer substrate (1) of the ultra-white glass is fixedly connected from left to right with cadmium telluride power generation glass (3), low-emissivity coated glass (5) and ultra-white glass inner substrate (7). A vacuum extraction port (11) is surrounded on the outside.
2. The novel composite glass according to claim 1, characterized in that: Both the first connecting piece (2) and the second connecting piece (4) are made of PVB film. The outer substrate (1) of the ultra-white glass and the cadmium telluride power generation glass (3) are bonded and fixed together by the first connecting piece (2). The cadmium telluride power generation glass (3) and the low-emissivity coated glass (5) are bonded and fixed together by the second connecting piece (4).
3. The novel composite glass according to claim 1, characterized in that: The vacuum spacer layer (6) has a support cylinder (8) inside. The two ends of the support cylinder (8) are fixedly connected between the low-emissivity coated glass (5) and the ultra-white glass inner substrate (7). There are several support cylinders (8) and they are distributed in a matrix.
4. The novel composite glass according to claim 1, characterized in that: The vacuum spacer layer (6) is filled with a desiccant (9).
5. The novel composite glass according to claim 1, characterized in that: The vacuum spacer layer (6) has sealing sheets (10) on both sides, and the sealing sheets (10) are fixedly connected between the low-emissivity coated glass (5) and the ultra-white glass inner substrate (7).
6. The novel composite glass according to claim 1, characterized in that: A vacuum extraction port (11) is provided on one side of the ultra-white glass inner layer substrate (7), and the vacuum extraction port (11) is connected to the vacuum spacer layer (6).