PVB (Polyvinyl Butyral) packaged photovoltaic module based on double-layer glass
By setting up a thermal positioning plate and a thermal pad in the PVB packaged photovoltaic module of double-glass, and opening a groove on the outer surface of the frame, the problems of overlapping cell displacement and poor heat dissipation functions in the double-glass photovoltaic module are solved, and the effective positioning of the cell and efficient heat dissipation of the photovoltaic panels are achieved.
Patent Information
- Application Number
- CN202422201612.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-09
AI Technical Summary
During the lamination process, double-glass photovoltaic modules are prone to overlapping cell shifts, and the heat dissipation function is poor, which affects the heat dissipation effect of photovoltaic panels.
The PVB package photovoltaic module is adopted based on double-glass. By setting a thermal positioning plate and a thermal pad on the photovoltaic panel, and opening a groove on the outer surface of the frame, the positioning and heat dissipation effect of the battery cell are improved.
It effectively avoids the displacement overlap of the battery cells during the lamination process, improves the heat dissipation effect of the photovoltaic panels, and realizes the adhesion between the various plates through the PVB packaging layer, enhances the bonding ability and avoids water vapor penetration.
Smart Images
Figure CN223040511U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic modules, and particularly relates to a PVB encapsulated photovoltaic module based on double-layer glass. Background Art
[0002] The double-glass photovoltaic module is a composite layer composed of two pieces of glass and a photovoltaic cell panel through lamination. However, during the lamination process, there is a problem that the cells on the photovoltaic cell panel are prone to shift and overlap. Secondly, the existing double-glass photovoltaic module has poor heat dissipation function, which is not convenient for the photovoltaic cell panel to dissipate heat. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a PVB encapsulated photovoltaic module based on double-layer glass to solve the problems proposed in the background art.
[0004] To solve the above technical problems, the technical solutions adopted by the utility model are as follows.
[0005] The PVB encapsulated photovoltaic module based on double-layer glass includes a frame and a double-glass photovoltaic module body installed in the frame; the double-glass photovoltaic module body includes an upper glass plate and a lower glass plate arranged up and down and a photovoltaic cell panel arranged between the upper glass plate and the lower glass plate; a plurality of cells are evenly arranged on the upper surface of the photovoltaic cell panel. Among them, a heat-conducting positioning plate made of a heat-conducting material is also arranged on the upper surface of the photovoltaic cell panel for sleeving each of the plurality of cells one by one; a heat-conducting pad made of a heat-conducting material is arranged between the frame and the double-glass photovoltaic module body, and a concave groove for increasing the heat dissipation area is also opened on the outer surface of the frame.
[0006] Preferably, through holes corresponding to and adapted to the plurality of cells are opened on the heat-conducting positioning plate to sleeve the cells to realize cell positioning. The upper surface of the heat-conducting positioning plate is flush with the upper surfaces of the plurality of cells, and a middle PVB encapsulation layer for realizing the adhesion between the heat-conducting positioning plate and the photovoltaic cell panel is arranged between the heat-conducting positioning plate and the photovoltaic cell panel.
[0007] Preferably, an upper PVB encapsulation layer for realizing the adhesion between the heat-conducting positioning plate and the plurality of cells and the upper glass plate is arranged between the heat-conducting positioning plate and the plurality of cells and the upper glass plate.
[0008] Preferably, pattern grooves for enhancing the adhesion strength between the heat-conducting positioning plate and the upper PVB encapsulation layer and the middle PVB encapsulation layer are opened on the upper surface and the lower surface of the heat-conducting positioning plate.
[0009] Preferably, a lower PVB encapsulation layer for realizing the adhesion between the photovoltaic cell panel and the lower glass plate is arranged between the photovoltaic cell panel and the lower glass plate.
[0010] Due to the adoption of the above technical solutions, the technical progress achieved by the present utility model is as follows.
[0011] The heat-conducting positioning plate provided by the present utility model can not only position the battery cells to avoid the displacement and overlap of the battery cells during the lamination process, but also facilitate the heat dissipation of the photovoltaic panel; through the heat-conducting pad and the concave groove formed on the outer surface of the frame, the heat dissipation effect of the photovoltaic panel can be further improved; through the upper PVB encapsulation layer, the middle PVB encapsulation layer and the lower PVB encapsulation layer, the bonding between the layers can be realized, which not only improves the bonding ability between the layers, but also can prevent the penetration of water vapor. Description of the Drawings
[0012] Figure 1 It is a schematic structural view of the present utility model.
[0013] Wherein: 1. Photovoltaic panel, 11. Battery cell, 2. Heat-conducting positioning plate, 3. Upper PVB encapsulation layer, 4. Upper glass plate, 5. Lower PVB encapsulation layer, 6. Lower glass plate, 7. Heat-conducting pad, 8. Frame, 81. Concave groove. Detailed Description of the Invention
[0014] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.
[0015] A PVB-encapsulated photovoltaic module based on double-layer glass, combined with Figure 1 as shown, includes a frame 8 and a double-glass photovoltaic module body, wherein the double-glass photovoltaic module body is installed in the frame 8.
[0016] The double-glass photovoltaic module body includes an upper glass plate 4, a lower glass plate 6 and a photovoltaic panel 1, wherein the upper glass plate 4 and the lower glass plate 6 are arranged up and down and are inorganic glass plates; the photovoltaic panel 1 is arranged between the upper glass plate 4 and the lower glass plate 6.
[0017] A plurality of battery cells 11 are uniformly arranged on the upper surface of the photovoltaic panel 1, and a heat-conducting positioning plate 2 is further arranged on the upper surface of the photovoltaic panel 1. A plurality of through holes are formed on the heat-conducting positioning plate 2. The plurality of through holes are arranged in one-to-one correspondence with the plurality of battery cells 11 and are adapted to the plurality of battery cells 11. The heat-conducting positioning plate 2 sleeved the plurality of battery cells 11 through the plurality of through holes, so as to realize the positioning of the plurality of battery cells 11 and avoid the displacement and overlap of the plurality of battery cells 11 during the lamination process. At the same time, the heat-conducting positioning plate 2 is made of a heat-conducting material, which is beneficial to the heat dissipation of the photovoltaic panel 1.
[0018] A middle PVB encapsulation layer is arranged between the heat-conducting positioning plate 2 and the photovoltaic panel 1. The middle PVB encapsulation layer is used to realize the bonding between the heat-conducting positioning plate 2 and the photovoltaic panel 1. After the heat-conducting positioning plate 2 and the photovoltaic panel 1 are bonded, the upper surface of the heat-conducting positioning plate 2 is flush with the upper surfaces of the plurality of battery cells 11.
[0019] There is an upper PVB encapsulation layer 3 between the heat-conducting positioning plate 2, several battery cells 11 and the upper glass plate 4. The upper PVB encapsulation layer 3 is used to bond the heat-conducting positioning plate 2, several battery cells 11 and the upper glass plate 4 together.
[0020] Pattern grooves are respectively formed on the upper surface and the lower surface of the heat-conducting positioning plate 2. The heat-conducting positioning plate 2 can enhance the bonding strength between the heat-conducting positioning plate 2 and the upper PVB encapsulation layer 3 and the middle PVB encapsulation layer through the pattern grooves.
[0021] There is a lower PVB encapsulation layer 5 between the photovoltaic panel 1 and the lower glass plate 6. The lower PVB encapsulation layer 5 is used to bond the photovoltaic panel 1 and the lower glass plate 6 together.
[0022] There is a heat-conducting pad 7 between the frame 8 and the double-glass photovoltaic module body. The heat-conducting pad 7 is made of heat-conducting material, which is beneficial to the heat dissipation of the photovoltaic panel 1. Concave grooves 81 are also formed on the outer surface of the frame 8. The concave grooves 81 can increase the heat dissipation area, thus further facilitating the heat dissipation of the photovoltaic panel 1.
[0023] When the utility model is in use, through the provided heat-conducting positioning plate 2, not only can the battery cells 11 be positioned to prevent the battery cells 11 from shifting and overlapping during the lamination process, but also it is beneficial to the heat dissipation of the photovoltaic panel 1; through the provided heat-conducting pad 7 and the concave grooves 81 formed on the outer surface of the frame 8, the heat dissipation effect of the photovoltaic panel 1 can be further improved; through the upper PVB encapsulation layer 3, the middle PVB encapsulation layer and the lower PVB encapsulation layer 5, the bonding between each layer of plates can be realized, which not only improves the bonding ability between each layer of plates, but also can prevent water vapor from penetrating.
Claims
1. A double-layer glass-based PVB encapsulated photovoltaic module, comprising a frame (8) and a double-glass photovoltaic module body installed in the frame (8); the double-glass photovoltaic module body comprises an upper glass plate (4) and a lower glass plate (6) arranged one above the other, and a photovoltaic cell panel (1) arranged between the upper glass plate (4) and the lower glass plate (6); a plurality of cells (11) are evenly arranged on the upper surface of the photovoltaic cell panel (1), characterized in that: The upper surface of the photovoltaic cell panel (1) is also provided with a heat-conducting positioning plate (2) made of a heat-conducting material for enclosing a plurality of cell sheets (11) one by one; a heat-conducting pad (7) made of a heat-conducting material is provided between the frame (8) and the double-glass photovoltaic module body, and the outer surface of the frame (8) is also provided with a concave groove (81) for increasing the heat dissipation area.
2. The double-layer glass-based PVB encapsulated photovoltaic module according to claim 1, characterized in that: The heat conductive positioning plate (2) is provided with through holes which are arranged in one-to-one correspondence with the plurality of battery cells (11) and are adapted to the plurality of battery cells (11) so as to cover the battery cells (11) and realize positioning of the battery cells (11); the upper surface of the heat conductive positioning plate (2) is flush with the upper surfaces of the plurality of battery cells (11); and a middle PVB encapsulation layer is provided between the heat conductive positioning plate (2) and the photovoltaic battery panel (1) for realizing bonding between the heat conductive positioning plate (2) and the photovoltaic battery panel (1).
3. The double-layer glass-based PVB encapsulated photovoltaic module according to claim 2, characterized in that: An upper PVB packaging layer (3) for bonding the heat-conducting positioning plate (2) and the plurality of battery cells (11) to the upper glass plate (4) is provided between the heat-conducting positioning plate (2) and the plurality of battery cells (11) and the upper glass plate (4).
4. The double-layer glass-based PVB encapsulation photovoltaic module according to claim 3, characterized in that: The upper surface and the lower surface of the heat-conducting positioning plate (2) are provided with patterned grooves for enhancing the bonding strength between the heat-conducting positioning plate (2) and the upper PVB packaging layer (3) and the middle PVB packaging layer.
5. The double-layer glass-based PVB encapsulation photovoltaic module according to claim 1, characterized in that: A lower PVB packaging layer (5) is provided between the photovoltaic cell panel (1) and the lower glass plate (6) for achieving adhesion between the photovoltaic cell panel (1) and the lower glass plate (6).