Double-sided photovoltaic module and laminated structure thereof
By designing bifacial photovoltaic modules and employing stable supports, photovoltaic panels, and cooling mechanisms, the problem that existing photovoltaic modules can only utilize front-side sunlight has been solved, achieving efficient light energy utilization and improved power generation efficiency under complex lighting conditions.
Patent Information
- Application Number
- CN202510603525.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2025-11-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing photovoltaic modules can only utilize sunlight from the front, while the back cannot effectively utilize light energy, resulting in limited overall power generation efficiency. In particular, it is difficult to balance the light energy absorption and conversion efficiency of the front and back sides when the lighting conditions are complex.
A bifacial photovoltaic module was designed, including a stabilizing bracket, a photovoltaic panel, a photovoltaic mechanism, and a cooling mechanism. The photovoltaic panel is supported by a tilting plate and a support member. It adopts high-efficiency monocrystalline silicon cells and a specific connection method, combined with upper and lower tempered glass and an encapsulation layer for protection. The middle isolation layer conducts heat, the rear encapsulation layer adapts to the rear light environment, and the cooling mechanism improves the heat dissipation effect.
It enables full utilization of the photovoltaic effect under complex lighting conditions, improves power generation efficiency, protects the battery layer from corrosion, ensures light transmittance and heat dissipation, and extends service life.
Smart Images
Figure CN120915219A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of double-sided photovoltaic modules, in particular to a double-sided photovoltaic module and a laminated structure thereof. BACKGROUND
[0002] A photovoltaic module is formed by connecting a plurality of solar cell pieces in series and parallel through wires and encapsulating them. These cell pieces are usually made of semiconductor materials such as crystalline silicon, and the encapsulation materials include tempered glass, EVA (ethylene-vinyl acetate copolymer), backsheet, etc., which protect the cell pieces and improve the mechanical strength, sealing property, corrosion resistance, etc. of the module. The module is also equipped with an aluminum alloy frame for fixing and protecting the internal structure, and a junction box for connecting external circuits and protecting electrical connections. When sunlight shines on the cell pieces of the photovoltaic module, the energy of photons is absorbed by the cell pieces to excite electron-hole pairs. Under the action of the built-in electric field in the cell, the photo-generated electrons and holes are separated, thereby generating a voltage across the cell. If a load is connected across the cell, a current will flow through the load, realizing the process of converting solar energy into electrical energy.
[0003] The existing photovoltaic module has certain limitations. The traditional single-sided photovoltaic module can only utilize the light on the front side, and the back side cannot effectively utilize the light energy, resulting in limited overall power generation efficiency. Under some complex light conditions, the photovoltaic effect cannot be fully utilized, and it is difficult to well balance the light energy absorption and conversion efficiency of the front and back sides. SUMMARY
[0004] The present application provides a double-sided photovoltaic module and a laminated structure thereof, which solves the problems in the background art.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a double-sided photovoltaic module, comprising a stable support,
[0006] a positioning block fixedly installed at the bottom of the stable support;
[0007] a photovoltaic panel arranged at the top of the stable support;
[0008] and a photovoltaic module arranged at the side of the stable support;
[0009] The photovoltaic module comprises a stabilizing mechanism arranged at the side of the stable support;
[0010] The photovoltaic panel comprises a photovoltaic mechanism arranged above the stabilizing mechanism;
[0011] The inner wall of the photovoltaic panel is provided with a photovoltaic mechanism;
[0012] The inner wall of the photovoltaic panel is provided with a cooling mechanism.
[0013] Preferably, the stabilizing mechanism comprises an inclined plate and a connecting plate, one end of the inclined plate is fixedly installed on the inner wall of the stabilizing support, the other end of the inclined plate is fixedly installed with a support, both ends of the support are fixedly connected with the inner wall of the stabilizing support, and the side wall of the connecting plate is connected with the side wall of the photovoltaic panel.
[0014] Preferably, the number of the support is three, and the three supports are evenly distributed on the inner wall of the stabilizing support.
[0015] Preferably, the photovoltaic mechanism comprises upper tempered glass, the bottom of the upper tempered glass is fixedly installed with a front encapsulation layer, the bottom of the front encapsulation layer is fixedly installed with a front photovoltaic cell layer, the bottom of the front photovoltaic cell layer is fixedly installed with an intermediate isolation layer, the bottom of the intermediate isolation layer is fixedly installed with a back photovoltaic cell layer, the bottom of the back photovoltaic cell layer is fixedly installed with a back encapsulation layer, and the bottom of the back encapsulation layer is fixedly installed with lower tempered glass. The upper tempered glass and the lower tempered glass can protect the inner wall of the photovoltaic panel, and do not affect the absorption of light energy. The front encapsulation layer can protect the front photovoltaic cell layer from erosion by external environment such as rainwater and dust, while ensuring good light transmission. The front photovoltaic cell layer is composed of multiple high-efficiency monocrystalline silicon cell pieces, and a specific series-parallel connection mode is adopted to improve the power generation efficiency under front light. The intermediate isolation layer can effectively conduct heat away while ensuring electrical isolation between the two cell layers, thereby avoiding overheating of the assembly. The back encapsulation layer is made of encapsulation material with certain light-shielding adjustment to adapt to the characteristics of the back light environment.
[0016] Preferably, the cooling mechanism comprises a cooling plate, the cooling plate is fixedly installed on the inner wall of the intermediate isolation layer, the inner wall of the cooling plate is fixedly installed with a cooling block, the inner wall of the cooling block is fixedly installed with an arc-shaped pipe, one end of the arc-shaped pipe is fixedly installed with an inlet pipe, and the other end of the arc-shaped pipe is fixedly installed with an outlet pipe. The operator can add cooling liquid to the inside of the inlet pipe, which will be further transported to the inner wall of the arc-shaped pipe. The cooling block can expand the heat dissipation effect and further improve the heat dissipation effect of the photovoltaic panel. Then the cooling liquid is discharged through the outlet pipe, effectively improving the service life of the photovoltaic panel.
[0017] Preferably, the inner wall of the outlet pipe is in communication with the inside of the arc-shaped pipe, and the inner wall of the arc-shaped pipe is in communication with the inside of the inlet pipe.
[0018] Preferably, the number of the cooling block is multiple, the shapes and sizes of the multiple cooling blocks are equal, and the multiple cooling blocks are evenly distributed on the inner wall of the cooling plate.
[0019] Preferably, the number of positioning blocks is four, the four positioning blocks are equal in size, and the four positioning blocks are uniformly distributed at the four corner positions of the bottom of the stabilizing support.
[0020] A laminated structure employing the bifacial photovoltaic module.
[0021] The present application provides a bifacial photovoltaic module and a laminated structure thereof. The present application has the following advantages:
[0022] (1) When the device is used by the operator, the position of the device as a whole is first determined by the positioning block, and then the position of the photovoltaic panel can be supported by the inclined plate, the support and the connecting plate. The photovoltaic panel can absorb light energy and further convert it into electrical energy. The photovoltaic panel is double-sided, which can fully play the photovoltaic effect under some complex light conditions (such as ground reflected light intensity), improve the working efficiency of the device, solve the certain limitations of the existing photovoltaic module, and the traditional single-sided photovoltaic module can only utilize the front light, and the back cannot effectively utilize the light energy, resulting in limited overall power generation efficiency. Under some complex light conditions, the photovoltaic effect cannot be fully utilized, and it is difficult to balance the front and back light energy absorption and conversion efficiency.
[0023] (2) The inner wall of the photovoltaic panel can be protected by the upper tempered glass and the lower tempered glass, and the absorption of light energy is not affected. The front encapsulation layer can protect the front photovoltaic cell layer from the erosion of external environment such as rainwater and dust, while ensuring good light transmittance. The front photovoltaic cell layer is composed of multiple high-efficiency monocrystalline silicon cells, which are connected in a specific series-parallel connection mode to improve the power generation efficiency under front light. The middle isolation layer is set to effectively conduct heat away while ensuring electrical isolation between the two cell layers, avoiding overheating of the module. The back encapsulation layer is provided with a certain light-shielding adjustment encapsulation material to adapt to the characteristics of the back light environment.
[0024] (3) The operator can add cooling liquid to the inside of the liquid inlet pipe, which will be further transported to the inner wall of the arc-shaped pipe. The cooling block can expand the heat dissipation effect, further improve the heat dissipation effect of the photovoltaic panel, and then be discharged through the liquid outlet pipe, effectively improving the service life of the photovoltaic panel, and facilitating the operator to better use the device. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is an appearance structure schematic diagram of the present application;
[0026] Figure 2 It is an appearance structure schematic diagram of the present application;
[0027] Figure 3 Fig. 1 is a structural schematic diagram of a photovoltaic mechanism of the present application;
[0028] Figure 4 Fig. 2 is a partial structural schematic diagram of a cooling mechanism of the present application;
[0029] Figure 5 Fig. 3 is a partial enlarged view of A in Fig. 1. Figure 5 Fig. 4 is a partial enlarged view of B in Fig. 1.
[0030] In the figure: 1, stabilizing support; 2, positioning block; 3, photovoltaic panel; 4, photovoltaic assembly; 41, stabilizing mechanism; 411, inclined plate; 412, support; 413, connecting plate; 42, photovoltaic mechanism; 421, upper tempered glass; 422, front encapsulation layer; 423, front photovoltaic cell layer; 424, middle isolation layer; 425, back photovoltaic cell layer; 426, back encapsulation layer; 427, lower tempered glass; 43, cooling mechanism; 431, liquid inlet pipe; 432, cooling plate; 433, liquid outlet pipe; 434, arc-shaped pipe; 435, cooling block. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.
[0032] Examples of the described embodiments are shown in the drawings, in which the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0034] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0035] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described with reference to the drawings.
[0036] Embodiment 1: A preferred embodiment of a double-sided photovoltaic module and a laminated structure thereof provided by the present application is shown in the figure. Figures 1 to 5 The double-sided photovoltaic module includes a stable support 1,
[0037] A positioning block 2 is fixedly mounted at the bottom of the stable support 1, the number of the positioning block 2 is four, the shapes and sizes of the four positioning blocks 2 are equal, and the four positioning blocks 2 are evenly distributed at the four corner positions of the bottom of the stable support 1;
[0038] A photovoltaic panel 3 is arranged at the top of the stable support 1;
[0039] And a photovoltaic module 4 is arranged at the side position of the stable support 1;
[0040] The photovoltaic module 4 includes a stable mechanism 41 arranged at the side position of the stable support 1;
[0041] The photovoltaic panel 3 includes a photovoltaic mechanism 42 located above the stable mechanism 41;
[0042] The inner wall position of the photovoltaic panel 3 is provided with the photovoltaic mechanism 42;
[0043] The inner wall position of the photovoltaic panel 3 is provided with a cooling mechanism 43.
[0044] The stable mechanism 41 includes an inclined plate 411 and a connecting plate 413, the inclined plate 411 is fixedly mounted on the inner wall of the stable support 1, the other end of the inclined plate 411 is fixedly mounted with a support 412, the two ends of the support 412 are fixedly connected with the inner wall of the stable support 1, and the side wall of the connecting plate 413 is connected with the side wall of the photovoltaic panel 3.
[0045] In the present embodiment, the number of the support 412 is three, and the three supports 412 are evenly distributed at the inner wall position of the stable support 1.
[0046] In the process of specific implementation, the operator uses the device first, determines the position of the whole device through the positioning block 2, and then can support the position of the photovoltaic panel 3 through the inclined plate 411, the support 412 and the connecting plate 413, absorbs light energy through the photovoltaic panel 3, further converts the light energy into electric energy, and the photovoltaic panel 3 is provided with two sides, so that the photovoltaic effect can be fully played and the working efficiency of the device can be improved under some complex light conditions such as ground reflected light intensity.
[0047] Example 2: On the basis of example 1, the preferred embodiment of the double-sided photovoltaic module and the laminated structure thereof provided by the application is as shown in the figure. Figures 1 to 5 As shown in the figure, the photovoltaic mechanism 42 comprises an upper tempered glass 421, the bottom of the upper tempered glass 421 is fixedly installed with a front encapsulation layer 422, the bottom of the front encapsulation layer 422 is fixedly installed with a front photovoltaic cell layer 423, the bottom of the front photovoltaic cell layer 423 is fixedly installed with an intermediate isolation layer 424, the bottom of the intermediate isolation layer 424 is fixedly installed with a back photovoltaic cell layer 425, the bottom of the back photovoltaic cell layer 425 is fixedly installed with a back encapsulation layer 426, and the bottom of the back encapsulation layer 426 is fixedly installed with a lower tempered glass 427.
[0048] In the process of specific implementation, the inner wall of the photovoltaic panel 3 can be protected by setting the upper tempered glass 421 and the lower tempered glass 427, and the absorption of light energy is not affected, the front photovoltaic cell layer can be protected from the erosion of external environment such as rainwater and dust by the front encapsulation layer 422, the front photovoltaic cell layer 423 is composed of a plurality of high-efficiency monocrystalline silicon cell pieces, a specific series-parallel connection mode is adopted to improve the power generation efficiency under front light, the intermediate isolation layer 424 is set to effectively conduct heat away while ensuring electrical isolation of the two cell layers, and overheating of the assembly is avoided, and the back encapsulation layer 426 is set to have a certain light-shielding encapsulation material to adapt to the characteristics of the back light environment.
[0049] Example 3: On the basis of example 1 and example 2, the preferred embodiment of the double-sided photovoltaic module and the laminated structure thereof provided by the application is as shown in the figure. Figures 1 to 5 As shown in the figure, the cooling mechanism 43 comprises a cooling plate 432, the cooling plate 432 is fixedly installed on the inner wall of the intermediate isolation layer 424, the inner wall of the cooling plate 432 is fixedly installed with a cooling block 435, the inner wall of the cooling block 435 is fixedly installed with an arc-shaped pipe 434, one end of the arc-shaped pipe 434 is fixedly installed with a liquid inlet pipe 431, and the other end of the arc-shaped pipe 434 is fixedly installed with a liquid outlet pipe 433.
[0050] In this embodiment, the inner wall of the liquid outlet pipe 433 is in communication with the inside of the arc-shaped pipe 434, and the inner wall of the arc-shaped pipe 434 is in communication with the inside of the liquid inlet pipe 431.
[0051] Further, the number of cooling blocks 435 is multiple, the shapes and sizes of the multiple cooling blocks 435 are equal, and the multiple cooling blocks 435 are respectively and uniformly distributed on the inner wall of the cooling plate 432.
[0052] In the specific implementation process, the operator can add cooling liquid to the inside of the liquid inlet pipe 431, the cooling liquid is further transported to the inner wall of the arc-shaped pipe 434, the cooling effect is expanded through the cooling blocks 435, the heat dissipation effect of the photovoltaic panel 3 is further improved, then the cooling liquid is further discharged through the liquid outlet pipe 433, the service life of the photovoltaic panel 3 is effectively improved, and the operator can better use the device.
[0053] A laminated structure adopts the above-mentioned double-sided photovoltaic module.
[0054] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
[0055] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A double-sided photovoltaic module, comprising a stable support (1), a positioning block (2) fixedly installed at the bottom of the stable support (1); a photovoltaic panel (3) arranged at the top of the stable support (1); and a photovoltaic module (4) arranged at the side of the stable support (1); characterized in that: the photovoltaic module (4) comprises a stabilizing mechanism (41) arranged at the side of the stable support (1); the photovoltaic panel (3) comprises a photovoltaic mechanism (42) located above the stabilizing mechanism (41); the inner wall of the photovoltaic panel (3) is provided with the photovoltaic mechanism (42); the inner wall of the photovoltaic panel (3) is provided with a cooling mechanism (43).
2. A bifacial photovoltaic module according to claim 1, characterized in that: The stabilizing mechanism (41) comprises an inclined plate (411) and a connecting plate (413), the inclined plate (411) is fixedly installed on the inner wall of the stable support (1), the other end of the inclined plate (411) is fixedly installed with a support (412), the two ends of the support (412) are fixedly connected with the inner wall of the stable support (1), and the side wall of the connecting plate (413) is connected with the side wall of the photovoltaic panel (3).
3. A bifacial photovoltaic module according to claim 2, characterized in that: The number of supports (412) is three, and the three supports (412) are evenly distributed on the inner wall of the stable support (1).
4. A bifacial photovoltaic module according to claim 1, characterized in that: The photovoltaic mechanism (42) comprises an upper tempered glass (421), the bottom of the upper tempered glass (421) is fixedly installed with a front encapsulation layer (422), the bottom of the front encapsulation layer (422) is fixedly installed with a front photovoltaic cell layer (423), the bottom of the front photovoltaic cell layer (423) is fixedly installed with an intermediate isolation layer (424), the bottom of the intermediate isolation layer (424) is fixedly installed with a back photovoltaic cell layer (425), the bottom of the back photovoltaic cell layer (425) is fixedly installed with a back encapsulation layer (426), and the bottom of the back encapsulation layer (426) is fixedly installed with a lower tempered glass (427).
5. A bifacial photovoltaic module according to claim 1, characterized in that: The cooling mechanism (43) comprises a cooling plate (432), the cooling plate (432) is fixedly installed on the inner wall of the intermediate isolation layer (424), the inner wall of the cooling plate (432) is fixedly installed with a cooling block (435), the inner wall of the cooling block (435) is fixedly installed with an arc-shaped pipe (434), one end of the arc-shaped pipe (434) is fixedly installed with an inlet pipe (431), and the other end of the arc-shaped pipe (434) is fixedly installed with an outlet pipe (433).
6. A bifacial photovoltaic module according to claim 5, characterized in that: The inner wall of the outlet pipe (433) is in communication with the inside of the arc-shaped pipe (434), and the inner wall of the arc-shaped pipe (434) is in communication with the inside of the inlet pipe (431).
7. A bifacial photovoltaic module according to claim 6, characterized in that: The number of cooling blocks (435) is multiple, the shapes and sizes of the multiple cooling blocks (435) are equal, and the multiple cooling blocks (435) are evenly distributed on the inner wall of the cooling plate (432).
8. A bifacial photovoltaic module according to claim 1, characterized in that: The number of positioning blocks (2) is four, the shapes and sizes of the four positioning blocks (2) are equal, and the four positioning blocks (2) are evenly distributed at the four corner positions of the bottom of the stable support (1).
9. A stacked structure, characterized by: The laminated structure employs the bifacial photovoltaic module according to any one of claims 1-8.