Photovoltaic module device capable of resisting ultraviolet-induced attenuation

Abstract

The utility model provides a photovoltaic assembly device capable of resisting ultraviolet light attenuation, which comprises a photovoltaic assembly, a prism assembly and an adjustable support assembly, the prism assembly is arranged on one side of the photovoltaic assembly facing illumination, and the prism assembly comprises at least two prisms which are sequentially arranged between the illumination and the photovoltaic assembly. The adjustable supporting assembly is used for supporting the prism assembly and adjusting the angle between each triangular prism and the photovoltaic assembly, the adjustable supporting assembly comprises a first supporting rod and a second supporting rod which are arranged in parallel, the bottom faces of the triangular prisms are hinged to the first supporting rods, the triangular prisms rotate in the vertical direction with hinge shafts as the centers, guide rods are arranged at the vertex angles of the triangular prisms, and the first supporting rods and the second supporting rods are arranged in parallel. The second supporting rod is provided with a sleeve capable of rotating in the vertical direction, the guide rod movably penetrates through the sleeve, the second supporting rod is provided with a first telescopic section and a second telescopic section, the first telescopic section is located below the prism assembly, and the second telescopic section is located between the two prisms. By means of the arrangement, most ultraviolet light is refracted out of the surface of the assembly, and therefore the effect of reducing ultraviolet attenuation is achieved.

Description

Technical Field

[0001] This utility model relates to the field of solar cell technology, and in particular to a photovoltaic module device that resists ultraviolet light-induced degradation. Background Technology

[0002] In practical applications of solar cells, various solar cells (PERC, Topcon, HJT, BC) experience various forms of degradation, such as potential-induced degradation (PID) and conventional light-induced degradation (LeTID). Furthermore, under high-intensity outdoor sunlight and prolonged ultraviolet radiation exposure, cell degradation becomes even more severe. Researchers have discovered ultraviolet light-induced degradation (UVID), which significantly impacts the stability of photovoltaic modules or power plants. Currently, one approach to addressing UVID is through module encapsulation, primarily using encapsulating films with UV-absorbing properties to reduce the amount of ultraviolet light reaching the cells. Another approach involves controlling the internal structure of the cell through hydrogen passivation. Both methods lead to complex module and cell manufacturing processes and increased production costs.

[0003] Therefore, it is necessary to design a photovoltaic module device that resists UV-induced degradation in order to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic module device that effectively mitigates ultraviolet light-induced degradation.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a photovoltaic module device for resisting ultraviolet light-induced degradation, comprising a photovoltaic module, a prism assembly disposed on the side of the photovoltaic module facing the light source, and an adjustable support assembly. The prism assembly is used to disperse the light source. The prism assembly includes at least two triangular prisms sequentially disposed between the light source and the photovoltaic module. The adjustable support assembly is used to support the prism assembly and adjust the angle between each triangular prism and the photovoltaic module. The adjustable support assembly includes a first support rod and a second support rod arranged in parallel. The bottom surface of the triangular prism is hinged to the first support rod. The triangular prism rotates vertically about the hinge axis. A guide rod is provided at the apex of the triangular prism. A sleeve that can rotate vertically is provided on the second support rod. The guide rod is movably inserted into the sleeve. The second support rod has a first telescopic section and a second telescopic section. The first telescopic section is located below the prism assembly, and the second telescopic section is located between the two triangular prisms.

[0006] As a further improvement of this utility model, the number of the first support rods is two, and they are arranged in parallel; the number of the second support rods is two, and they are arranged in parallel.

[0007] As a further improvement of the present invention, the first telescopic section includes an inner tube, an outer tube, and a positioning pin for locking the inner tube and the outer tube.

[0008] As a further improvement of the present invention, the second telescopic section includes an inner tube, an outer tube, and a positioning pin for locking the inner tube and the outer tube.

[0009] As a further improvement of this utility model, the line connecting the apex of the cross-section of the prism and the midpoint of the bottom edge is defined as the central axis, and the length direction of the guide rod is parallel to the central axis.

[0010] As a further improvement of this utility model, the apex angle of the prism is 5-25°.

[0011] As a further improvement of this utility model, after the light is dispersed by the prism component, light with a wavelength of less than 400nm falls outside the receiving area of ​​the photovoltaic component.

[0012] As a further improvement of this utility model, an adjustment bracket is provided below the photovoltaic module, which can drive the photovoltaic module to move vertically and horizontally.

[0013] As can be seen from the above technical solutions, the photovoltaic module device for resisting ultraviolet light-induced degradation of this utility model disperses light by setting a prism assembly, reducing the direct irradiation of the photovoltaic module by ultraviolet rays, thereby slowing down the performance degradation of the photovoltaic module and improving its service life. After the prism assembly disperses the light, the light is more evenly distributed on the photovoltaic module, which is beneficial to improving the photovoltaic power generation efficiency. By setting an adjustable support assembly, the angle between each prism and the photovoltaic module can be easily adjusted, improving the flexibility of use to adapt to the needs of use under different lighting conditions and expanding the application scenarios. At the same time, this structure also facilitates the maintenance and replacement of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a photovoltaic module device for resisting ultraviolet light-induced degradation according to an embodiment of the present invention.

[0015] Figure 2 for Figure 1 A view along the length of the first support rod of a photovoltaic module device resistant to UV-induced degradation.

[0016] Figure 3 for Figure 1 A schematic diagram of a triangular prism.

[0017] Figure 4 for Figure 1 Schematic diagram of the first and second telescopic sections Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Please refer to Figure 1 and Figure 2 As shown, this utility model provides a photovoltaic module device for resisting ultraviolet light-induced degradation, which includes a photovoltaic module 10, an adjustment bracket 20, a prism assembly 40, and an adjustable support assembly 30. The adjustment bracket 20 is located below the photovoltaic module 10 and can drive the photovoltaic module 10 to move vertically and horizontally.

[0020] A prism assembly 40 is disposed on the side of the photovoltaic module 10 facing the light source to disperse the light and separate the ultraviolet light in the light. Preferably, after the light is dispersed by the prism assembly 10, light with a wavelength less than 400nm (i.e., ultraviolet light) falls outside the receiving area of ​​the photovoltaic module. The prism assembly 40 includes at least two triangular prisms sequentially disposed between the light source and the photovoltaic module 10, and the light shines on the surface of the photovoltaic module 10 after passing through multiple triangular prisms in sequence.

[0021] In this embodiment, the prism assembly includes two triangular prisms 41 and 42. By setting multiple superimposed triangular prisms, while ensuring that ultraviolet light is refracted out of the receiving range of the photovoltaic module 10, the apex angle of each individual triangular prism is reduced, thereby reducing the size and weight of the prism. This configuration not only allows the device to be applied to different regions to meet the different installation angle requirements of modules in various places, thus enriching its application scenarios, but also reduces the space occupied.

[0022] The adjustable support assembly 30 supports the prism assembly 40 and adjusts the angle between each prism and the photovoltaic module 10. The adjustable support assembly 30 includes two parallel first support rods 31 and two parallel second support rods 32. Please refer to... Figure 1 and Figure 3 As shown, taking the upper prism 41 as an example, the front and back of prism 41 are triangles, with the left side of the triangle being the base. The angle opposite to the base is the vertex angle α. The line connecting the vertex angle α of the prism's cross-section and the midpoint O of the base is defined as the central axis, and the line connecting the midpoints O of the two bases of prism 41 is defined as the centerline of the base. The vertex angle α of each prism is 5-25°. The prism is rotatably mounted on the adjustable support assembly 30. Specifically, the bottom surface of prism 41 is hinged to the first support rod 31 via hinge 31a, and prism 41 rotates vertically around the hinge axis. Similarly, the bottom surface of prism 42 is hinged to the first support rod 31 via 31b.

[0023] The second support rod 32 has a first telescopic section 34a and a second telescopic section 34b. The first telescopic section 34a is located below the prism assembly 10, that is, below the lowest prism. The second telescopic section 34b is located between the two prisms. Please refer to... Figure 4 As shown, the first telescopic section 34a and the second telescopic section 34b have the same structure, including an outer tube 342, an inner tube 341 and a positioning pin 343 that locks the inner tube 341 and the outer tube 342.

[0024] A guide rod 33a is provided at the apex α of the prism 41, and a sleeve 32a that can rotate vertically is provided on the second support rod 32. The guide rod 33a is movably inserted into the sleeve 32a. The length direction of the guide rod 33a is parallel to the central axis of the prism 41. When it is necessary to adjust the angle of the prism 41, first turn the positioning pin 343 to allow the inner tube 341 to slide relative to the outer tube 342, adjusting the length of the first telescopic section 34a. At this time, the side of the prism 41 where the apex is located rotates upward or downward under the drive of the first telescopic section 34a. The guide rod 33a slides in the sleeve 32a, and the tilt angle of the sleeve 32a changes with the change of the angle of the guide rod 33a. When the prism 41 is rotated to the desired position, tighten the positioning pin 343.

[0025] The terms used herein, such as “upper,” “lower,” “front,” and “back,” indicating relative spatial positions, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims.

[0026] Furthermore, the above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of this specification should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. A photovoltaic module apparatus resistant to ultraviolet light-induced degradation, characterized by: The application relates to a photovoltaic module, a prism module arranged on the side of the photovoltaic module facing the light source and an adjustable supporting module, wherein the prism module is used for dispersing the light source, the prism module comprises at least two triangular prisms arranged in sequence between the light source and the photovoltaic module, the adjustable supporting module is used for supporting the prism module and adjusting the angle between each triangular prism and the photovoltaic module, the adjustable supporting module comprises first and second supporting rods arranged in parallel, the bottom surface of the triangular prism is hinged to the first supporting rod, the triangular prism rotates in the vertical direction with the hinged shaft as the center, a guide rod is arranged on the top corner of the triangular prism, a sleeve capable of rotating in the vertical direction is arranged on the second supporting rod, the guide rod is movably arranged in the sleeve, the second supporting rod has a first telescopic section and a second telescopic section, the first telescopic section is located below the prism module, and the second telescopic section is located between the two triangular prisms.

2. The photovoltaic module apparatus resistant to ultraviolet light-induced degradation of claim 1, wherein: The number of the first supporting rods is two, and the first supporting rods are arranged in parallel; the number of the second supporting rods is two, and the second supporting rods are arranged in parallel.

3. The photovoltaic module apparatus resistant to ultraviolet light-induced degradation of claim 1, wherein: The first telescopic section comprises an inner tube, an outer tube and a positioning pin used for locking the inner tube and the outer tube.

4. The photovoltaic module apparatus resistant to ultraviolet light-induced degradation of claim 1, wherein: The second telescopic section comprises an inner tube, an outer tube and a positioning pin used for locking the inner tube and the outer tube.

5. The photovoltaic module apparatus resistant to ultraviolet light-induced degradation of claim 1, wherein: The length direction of the guide rod is parallel to the central axis defined by the line connecting the top corner and the midpoint of the bottom side of the triangular prism.

6. The photovoltaic module apparatus resistant to ultraviolet light-induced degradation of claim 5, wherein: The top corner of the triangular prism is 5-25 degrees.

7. The photovoltaic module apparatus resistant to ultraviolet light-induced degradation of claim 1, wherein: After the light source is dispersed by the prism module, the light with a wavelength less than 400 nm falls outside the receiving area of the photovoltaic module.

8. The photovoltaic module apparatus resistant to ultraviolet light-induced degradation of claim 1, wherein: An adjusting bracket is arranged below the photovoltaic module, and the adjusting bracket can drive the photovoltaic module to move vertically and horizontally.

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