Photovoltaic frame convenient to detect

Abstract

The utility model relates to the technical field of photovoltaic frames, in particular to a photovoltaic frame convenient to detect, which comprises frame strips and connecting pieces, two adjacent frame strips are connected through the connecting pieces, the inner sides of the frame strips are provided with mounting grooves, the connecting pieces are provided with transition grooves for communicating the mounting grooves on the two frame strips, and the transition grooves are connected with the frame strips through the connecting pieces. Through-length light guide fibers are arranged in the frame strips in the length direction of the frame strips, light guide columns are arranged in the connecting pieces, one ends of the light guide columns are arranged on the end faces of the connecting ends, and the other ends of the light guide columns are communicated with the outer walls of the connecting pieces. And when the frame strips are connected with the connecting pieces, the light guide columns are aligned with the light guide fibers in the frame strips. Light is emitted from one end of the frame strip to the light guide fiber, light is received from the end portion of the light guide fiber at the other end, once the frame strip is damaged and broken, the light guide fiber is driven to be broken, and therefore the two ends of the light guide fiber cannot be communicated with a light path. Therefore, whether the frame strip is damaged or not can be judged only by detecting whether the light-guide fibers can be communicated with the light path or not.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic frames, and in particular to a photovoltaic frame which is easy to detect. Background Art

[0002] Photovoltaic panel assembly is a power generation device that generates direct current when exposed to sunlight. It is composed of thin solid photovoltaic cells made almost entirely of semiconductor materials such as silicon.

[0003] In the photovoltaic panel assembly, in order to prevent the solar cells from being damaged or the conversion efficiency reduced by erosion by rain and dust, the upper and lower layers of the solar cells are protected by glass and back panels, as well as packaging films, etc., and the edges of the entire photovoltaic panel assembly are protected by a frame to prevent water and dust from seeping in.

[0004] In the prior art, frames used in photovoltaic panel assemblies are mostly made of aluminum. Traditional photovoltaic frames use metal aluminum as the main material. With the development of the photovoltaic industry, aluminum frames are energy-intensive and highly polluting in actual use. The initial raw material is aluminum ore, and the production process has high carbon emissions. The size of the components is getting larger and larger, and the wall thickness of the aluminum frame is increasing. At the same time, crossbeams need to be added for reinforcement. The land area is limited, and distributed and sea (water) surface photovoltaics will become the trend in the future. Aluminum frames have poor acid and alkali resistance and salt spray corrosion resistance.

[0005] In order to overcome the shortcomings of aluminum as a photovoltaic panel component, some fiber composite materials have begun to appear as frames of photovoltaic panel components. For example, application number CN202310790824.2 discloses a fiber reinforced composite photovoltaic component frame. However, in the prior art, the frame made of fiber composite materials is corrosion-resistant, high in strength and light in weight due to the characteristics of the material itself, but once damaged, the fiber will break directly and form cracks on the frame. During use, if some minor fractures occur, the naked eye cannot accurately judge, but water vapor and fine particles will enter the position of the solar cell through these fractured gaps, which will cause the conversion efficiency of the entire photovoltaic panel assembly to decrease. In the prior art, if the staff wants to find the location of these fractures, they need to use an ultrasonic flaw detection device to detect whether the frame is damaged. However, this detection method is not only inefficient, but also has a high cost of ultrasonic flaw detection, which will greatly increase the operation and maintenance cost.

[0006] Based on the above reasons, the present invention proposes a photovoltaic frame that is easy to detect and a manufacturing method thereof, which can allow operators to effectively identify whether the frame is damaged. Utility Model Content

[0007] The purpose of the utility model is to provide a photovoltaic frame that is easy to detect and solve the problems in the prior art.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A photovoltaic frame that is easy to detect includes a frame strip and a connector, wherein two adjacent frame strips are connected via the connector, an installation groove is provided on the inner side of the frame strip, a transition groove for connecting the installation grooves on the two frame strips is provided on the connector, a full-length light guide fiber is provided in the frame strip along its length direction, a light guide column is provided in the connector, one end of the light guide column is placed on the end face of the connection end, and the other end is connected to the outer wall of the connector; when the frame strip and the connector are connected, the light guide column and the light guide fiber in the frame strip are aligned.

[0010] A further technical solution is that mounting holes penetrating through both ends are provided in the frame strip, and mounting blocks matching the mounting holes are provided at the connecting ends of the connecting pieces.

[0011] A further technical solution is that a mounting plate is arranged on the inner side of the connecting piece, and a connecting hole penetrating through the upper and lower sides is arranged on the mounting plate.

[0012] A further technical solution is that a light guiding layer is arranged in the connector, the edge of the light guiding layer is arranged flush with the outer side of the connector, one end of the light guiding column is placed on the connecting end face of the connector, and the other end is connected to the light guiding layer.

[0013] A further technical solution is that a protective shell for shielding the edge of the light guide layer is detachably provided on the outer side of the connecting piece.

[0014] A further technical solution is that a first magnetic block is provided on the outer side of the connecting piece, and a second magnetic block is provided on the inner wall of the protective shell. When the protective shell is installed on the outer side of the connecting piece, the first magnetic block and the second magnetic block are magnetically connected.

[0015] Compared with the prior art, the utility model has at least one of the following beneficial effects: 1. By arranging a full-length optical fiber in the frame strip, when the frame strip is intact, the optical fiber is also intact, so that light is injected into the optical fiber from one end of the frame strip, and light can be received from the end of the optical fiber at the other end of the frame strip. Once the frame strip is damaged and broken, the optical fiber will also be broken, so that the two ends of the optical fiber cannot be connected to the optical path. Therefore, it is only necessary to detect whether the optical fiber can be connected to the optical path to determine whether the frame strip is damaged; 2. By arranging a connector, a complete photovoltaic frame is formed by the connector and the frame strip, and connectors are connected at both ends of each frame strip. Light is injected into the light guide column on one of the connectors. If light can be received from the light guide column on the other connector, it is determined that the frame strip is intact. If light cannot be received, it is determined that the frame strip has been damaged and needs to be replaced. By detecting in this way, the frame strip can be quickly detected, which greatly improves the detection efficiency, and the detection cost is much lower than ultrasonic flaw detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial schematic diagram of a photovoltaic frame that is easy to detect according to the utility model.

[0017] Figure 2 This is a top view of a photovoltaic frame that is easy to detect according to the utility model.

[0018] Figure 3 It is a schematic cross-sectional diagram of a frame strip of a photovoltaic frame that is easy to detect according to the utility model.

[0019] Figure 4 This is a schematic diagram of a connector of a photovoltaic frame that is easy to detect according to the utility model.

[0020] Figure 5 The utility model is a schematic cross-sectional view of a connector of a photovoltaic frame that is easy to detect.

[0021] Figure 6 Another partial schematic diagram of a photovoltaic frame that is easy to detect according to the utility model.

[0022] Icons: 1- border strip, 2- connecting piece, 3- mounting groove, 4- transition groove, 5- light guide fiber, 6- light guide column, 7- mounting hole, 8- mounting block, 9- mounting plate, 10- connecting hole, 11- light guide layer, 12- protective shell, 13- first magnetic block, 14- second magnetic block, 15- laminated part, 16- transparent prism. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] Figures 1 to 5 Shown is an embodiment of the utility model.

[0025] Embodiment 1:

[0026] like Figure 1-3 As shown, a photovoltaic frame that is easy to detect includes a frame strip 1 and a connector 2, two adjacent frame strips 1 are connected by the connector 2, a mounting groove 3 is provided on the inner side of the frame strip 1, a transition groove 4 for connecting the mounting grooves 3 on the two frame strips 1 is provided on the connector 2, a full-length light guide fiber 5 is provided in the frame strip 1 along its length direction, a light guide column 6 is provided in the connector 2, one end of the light guide column 6 is placed on the end face of the connection end, and the other end is connected to the outer wall of the connector 2; when the frame strip 1 and the connector 2 are connected, the light guide column 6 is aligned with the light guide fiber 5 in the frame strip 1. By setting a through-length optical fiber 5 in the frame strip 1, when the frame strip 1 is intact, the optical fiber 5 is also intact, so that light is injected into the optical fiber 5 from one end of the frame strip 1, and light can be received from the end of the optical fiber 5 at the other end of the frame strip 1. Once the frame strip 1 is damaged and broken, the optical fiber 5 will also be broken, so that the two ends of the optical fiber 5 cannot be connected to the optical path. Therefore, it is only necessary to determine whether the frame strip 1 is damaged by detecting whether the optical fiber can be connected to the optical path. By setting a connector 2, a complete photovoltaic frame is formed by the connector 2 and the frame strip 1. Connectors 2 are connected at both ends of each frame strip 1. Light is injected into the light guide column 6 on one of the connectors 2. If light can be received from the light guide column 6 on the other connector 2, it is determined that the frame strip 1 is intact. If light cannot be received, it is determined that the frame strip 1 has been damaged and needs to be replaced. By detecting in this way, the frame strip 1 can be quickly detected, which greatly improves the detection efficiency, and the detection cost is much lower than ultrasonic flaw detection.

[0027] The frame strip 1 is provided with mounting holes 7 that pass through both ends, and the connecting end of the connector 2 is provided with mounting blocks 8 that match the mounting holes 7. When a square-shaped photovoltaic frame needs to be assembled, the connector 2 is an "L"-shaped connector 2, and mounting blocks 8 are set at both ends of the connector 2. The mounting holes 7 of the two frame strips 1 and the two mounting blocks 8 on the connector 2 are aligned and inserted for installation. A complete photovoltaic frame can be formed by four connectors 2 and four frame strips 1. A laminate 15 is installed in the photovoltaic frame. The laminate 15 includes components in conventional photovoltaic panel components such as solar cells, upper glass, backboard, and encapsulation cornea. While assembling the photovoltaic frame, the edge of the laminate 15 is installed in the mounting groove 3 and the transition groove 4, so that the laminate 15 is installed in the photovoltaic frame. Adhesives are used to bond and seal the joints between the laminate 15 and the mounting groove 3 and the transition groove 4. The end surface connection of the connector 2 and the frame strip 1 is also bonded and fixed with an adhesive, and at the same time, it is necessary to avoid the light guide column 6 to avoid smearing on the light guide column 6 to affect the light path connection between the light guide column 6 and the light guide fiber 5. Product testing is required before it is put into use to ensure that all light paths of the photovoltaic frame are conductive before use. The mounting hole 7 can also make the entire frame strip 1 hollow, which can reduce the weight of the entire frame strip 1 while ensuring strength.

[0028] Embodiment 2:

[0029] like Figure 4 As shown, a mounting plate 9 is provided on the inner side of the connector 2, and a connecting hole 10 is provided on the mounting plate 9 that passes through the upper and lower sides. By providing the mounting plate 9, after the photovoltaic frame and the laminate 15 form a photovoltaic panel assembly, the mounting plate 9 is connected to the support rod or the base, so that the entire photovoltaic panel assembly is installed.

[0030] Embodiment 3:

[0031] like Figure 4 , 5 As shown, a light guide layer 11 is provided in the connector 2, and the edge of the light guide layer 11 is flush with and connected to the outer side of the connector 2. One end of the light guide column 6 is placed on the end face of the connecting end of the connector 2, and the other end is connected to the light guide layer 11. By providing the light guide layer 11, light is driven from the light guide layer 11 into the light guide column 6, and then irradiated onto the light guide fiber 5. The light guide layer 11 also facilitates operators to observe the light coming out of the light guide fiber 5.

[0032] Embodiment 4:

[0033] like Figure 4 , 5As shown, the outer side of the connector 2 is detachably provided with a protective shell 12 for shielding the edge of the light guide layer 11. By providing the protective shell 12, the edge of the light guide layer 11 can be protected to a certain extent, preventing the edge of the light guide layer 11 from being exposed to wind, sun and rain for a long time, thereby reducing the light transmission effect.

[0034] A first magnetic block 13 is provided on the outer side of the connector 2, and a second magnetic block 14 is provided on the inner wall of the protective shell 12. When the protective shell 12 is installed on the outer side of the connector 2, the first magnetic block 13 and the second magnetic block 14 are magnetically connected. By providing the first magnetic block 13 and the second magnetic block 14, the convenience of connection between the protective block and the connector 2 can be improved, and the quick installation and removal of the protective shell 12 can be realized, which is convenient for detecting the frame strip 1.

[0035] Embodiment 5:

[0036] like Figure 6 As shown, in Example 1, an external connector is used to connect the two frame strips 1. A hidden L-shaped connector can also be used. The ends of the two frame strips are cut into bevels, and then the L-shaped connector is inserted into the mounting holes 7 of the bevel edges of the two frame strips. And the two frame strips 1 can be stably connected and well sealed with an adhesive. In order to facilitate the detection of whether the light-guiding fiber 5 in the frame strip 1 is complete. Some of the outer edges of the connection between the two frame strips 1 are cut off to form a detection gap. The end of the light-guiding fiber 5 is located in the detection gap. The two detection gaps are spliced ​​to form a detection groove. A transparent prism 16 is installed in the detection groove. The transparent prism 16 and the detection groove are bonded and sealed with a transparent adhesive, or edge bonding is used to fix, that is, the adhesive is only coated on the edge of the transparent prism 16 to avoid the adhesive coating on the end of the light-guiding fiber 5, so as to avoid affecting the light from entering the light-guiding fiber 5. In this way, the operator can inject light into the transparent prism 16 at one end of the frame strip 1 during inspection. If the operator can see light from the transparent prism 16 at the other end of the frame strip 1, it indicates that the optical fiber 5 is intact, otherwise it indicates that the optical fiber 5 is broken.

[0037] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A photovoltaic frame that is easy to detect, comprising a frame strip (1) and a connecting piece (2), wherein two adjacent frame strips (1) are connected via the connecting piece (2), a mounting groove (3) is provided on the inner side of the frame strip (1), and a transition groove (4) is provided on the connecting piece (2) for connecting the mounting grooves (3) on the two frame strips (1), characterized in that: A continuous light-guiding fiber (5) is arranged in the frame strip (1) along its length direction, and a light-guiding column (6) is arranged in the connecting piece (2), one end of the light-guiding column (6) is placed on the end surface of the connecting end, and the other end is connected to the outer wall of the connecting piece (2); when the frame strip (1) and the connecting piece (2) are connected, the light-guiding column (6) and the light-guiding fiber (5) in the frame strip (1) are aligned.

2. A photovoltaic frame that is easy to detect according to claim 1, characterized in that: The frame strip (1) is provided with mounting holes (7) penetrating through both ends, and the connecting end of the connecting piece (2) is provided with a mounting block (8) matching the mounting holes (7).

3. The photovoltaic frame that is easy to detect according to claim 1 is characterized in that: A mounting plate (9) is provided on the inner side of the connecting member (2), and a connecting hole (10) penetrating the upper and lower sides is provided on the mounting plate (9).

4. The photovoltaic frame that is easy to detect according to claim 1 is characterized in that: A light-guiding layer (11) is arranged inside the connecting piece (2), and the edge of the light-guiding layer (11) is arranged flush with and in communication with the outer side of the connecting piece (2); one end of the light-guiding column (6) is placed on the connecting end face of the connecting piece (2), and the other end is in communication with the light-guiding layer (11).

5. The photovoltaic frame that is easy to detect according to claim 4 is characterized in that: A protective shell (12) for shielding the edge of the light guide layer (11) is detachably provided on the outer side of the connecting piece (2).

6. The photovoltaic frame that is easy to detect according to claim 5, characterized in that: A first magnetic block (13) is arranged on the outer side of the connecting member (2), and a second magnetic block (14) is arranged on the inner wall of the protective shell (12); when the protective shell (12) is installed on the outer side of the connecting member (2), the first magnetic block (13) and the second magnetic block (14) are magnetically connected.

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