A self-luminous photovoltaic module

Abstract

The utility model discloses a kind of self-luminous photovoltaic modules, including cell piece, the front surface of cell piece is fixedly connected with glass panel by glue connection layer, the back of cell piece is fixedly connected with glass backplate by glue connection layer, glass panel is detachably connected with lamp strip on through magnetic attraction piece, lamp strip is electrically connected with cell piece, busbar is provided on cell piece, along the thickness direction of cell piece, busbar and lamp strip are mutually aligned.The utility model can directly reflect the weak light power generation capability of photovoltaic module by the light emitting of lamp strip;Lamp strip is detachably connected with glass panel by magnetic attraction piece, the dismounting of lamp strip can be facilitated, the convenience of photovoltaic module display and maintenance is improved;When installing, lamp strip covers busbar, which can reduce the shielding of cell piece by lamp strip, also can reduce the exposure of busbar, improve the aesthetic property of photovoltaic module.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module technology, and in particular relates to a self-luminous photovoltaic module. Background Technology

[0002] The low-light response capability of photovoltaic (PV) modules is often used as a major selling point, especially in the current competition among technologies such as TOPCon, HJT, and BC. Against this backdrop, to more intuitively demonstrate the power generation capacity of PV modules during demonstrations or tests, light bulbs can be connected to the PV modules. By comparing the changes in brightness of the light bulbs under low-irradiance lighting conditions, the power generation capacity of the PV modules under low-light conditions can be compared.

[0003] However, using external light bulbs is not only less convenient to operate, but also less aesthetically pleasing when displaying photovoltaic modules, directly affecting the display effect of the photovoltaic modules.

[0004] Therefore, it is necessary to improve the photovoltaic modules in the existing technology. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a self-emissive photovoltaic module that improves the convenience and aesthetics of photovoltaic modules in displaying weak light power generation capabilities.

[0006] To achieve the above objectives, the specific technical solution of the self-emissive photovoltaic module of this utility model is as follows:

[0007] A self-emissive photovoltaic module includes a solar cell. A glass panel is fixedly connected to the front side of the solar cell via an adhesive layer, and a glass backplate is fixedly connected to the back side of the solar cell via an adhesive layer. A light strip is detachably connected to the glass panel via a magnetic attachment. The light strip is electrically connected to the solar cell. A busbar is provided on the solar cell, and the busbar is aligned with the light strip along the thickness direction of the solar cell.

[0008] Preferably, in order to protect the light strip and reduce its failure rate, the light strip is provided with a transparent outer shell, and both ends are provided with openings connecting the inside and outside of the outer shell, and sealing end caps are provided at the openings.

[0009] Preferably, in order to achieve electrical connection between the light strip and the battery cell, two first conductive contacts that are respectively connected to the positive and negative terminals of the battery cell are fixedly connected to the glass panel, and two second conductive contacts that are respectively connected to the positive and negative terminals of the light strip are fixedly connected to the side of the outer shell near the glass panel. The first conductive contacts are connected to the second conductive contacts through magnetic attraction.

[0010] Preferably, in order to improve the ease of installation of the light strip, the magnetic component is a permanent magnet, and one of the first conductive contact and the second conductive contact is fixedly connected to a permanent magnet, while the other is made of ferromagnetic material.

[0011] Preferably, in order to improve the accuracy of the positive and negative electrode connection between the light strip and the battery cell, the magnetic attractor is a permanent magnet 502. A permanent magnet is fixedly connected to both the first conductive contact and the second conductive contact. The two permanent magnets on the two first conductive contacts have opposite polarities on the side facing the glass panel, and the two permanent magnets on the two second conductive contacts have opposite polarities on the side facing the outer casing. The permanent magnets on the first conductive contact connected to the positive electrode of the battery cell and the permanent magnets on the second conductive contact connected to the positive electrode of the light strip have opposite polarities on their opposite sides.

[0012] Preferably, in order to improve the stability of the housing installation, the first conductive contact has a contact head that protrudes from the surface of the glass panel, and the housing has a positioning recess that matches the contact head.

[0013] Preferably, the contact head is frustum-shaped to facilitate docking between the contact head and the positioning notch.

[0014] Preferably, in order to improve the sealing performance of the mating part between the first conductive contact and the second conductive contact, a second annular groove for accommodating the sealing ring is provided on the outer shell, and the positioning recess is located inside the second annular groove.

[0015] The self-luminous photovoltaic module of this utility model has the following advantages: the light emitted by the light strip can intuitively demonstrate the low-light power generation capability of the photovoltaic module; the light strip is detachably connected to the glass panel through magnetic components, which can facilitate the installation and removal of the light strip and improve the convenience of displaying and maintaining the photovoltaic module; when installed, the light strip covers the busbar, which can reduce the shading of the solar cells by the light strip and also reduce the exposure of the busbar, thus improving the aesthetics of the photovoltaic module. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the photovoltaic module of this utility model;

[0017] Figure 2 This is an exploded view of the photovoltaic module of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first conductive contact of this utility model;

[0019] Figure 4 This is a schematic diagram of the outer shell of this utility model;

[0020] Figure 5This is an exploded view of the outer casing of this utility model;

[0021] Figure 6 This is a cross-sectional view of the outer casing of this utility model;

[0022] The markings in the diagram are as follows: 1. Glass panel; 2. Adhesive layer; 3. Battery cell; 4. Glass backplate; 5. First conductive contact; 6. Housing; 7. LED strip; 8. Second conductive contact; 301. Busbar; 501. Contact head; 502. Permanent magnet; 503. First annular groove; 601. Sealing end cap; 602. Sealing ring; 603. Positioning notch; 604. Second annular groove. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0024] The terms "top surface," "bottom surface," and "full surface" are used with reference to the normal operating state of the photovoltaic module and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] like Figure 1 and 2 As shown, a self-emissive photovoltaic module includes a solar cell 3. A glass panel 1 is fixedly connected to the front side of the solar cell 3 through an adhesive layer 2, and a glass backplate 4 is fixedly connected to the back side of the solar cell 3 through an adhesive layer 2. A light strip 7 is detachably connected to the glass panel 1 through a magnetic attachment. The light strip 7 is electrically connected to the solar cell 3. A busbar 301 is provided on the solar cell 3, and the busbar 301 and the light strip 7 are aligned with each other along the thickness direction of the solar cell 3.

[0026] In the aforementioned photovoltaic module, the adhesive layer 2 is an EVA film layer. After hot pressing, the adhesive layer 2 enables the fixed connection between the glass panel 1, the solar cells 3, and the glass backplate 4. During the photovoltaic module demonstration, the light strip 7 is powered by the solar cells 3. By observing the light strip 7's emission, the low-light power generation capability of the photovoltaic module is visually demonstrated. When selecting the light strip 7, it is necessary to ensure that the voltage of the photovoltaic module is greater than the voltage of the light strip, so that the electrical energy generated by the photovoltaic module can support the emission of the light strip 7. The light strip 7 is connected to the glass panel via magnetic attachments. The front of the 1 allows for easy disassembly of the light strip 7, improving the connection between the photovoltaic module and the light strip 7 and facilitating subsequent maintenance and replacement of the light strip 7. Since the busbar 301 is usually located on one side of the cell 3 to collect the electrical energy generated by the cell 3, covering the area of ​​the busbar 301 with the light strip 7 can firstly create a misalignment between the light strip 7 and the cell 3 in the thickness direction, reducing the shading of the cell 3 by the light strip 7 and improving the power generation efficiency of the photovoltaic module. Secondly, by covering the busbar 301 with the light strip 7, the aesthetics of the photovoltaic module can be improved.

[0027] Further improvements include, for example Figure 4 and 5 As shown, the light strip 7 has a transparent outer shell 6, with openings at both ends connecting the inside and outside of the outer shell 6, and sealing end caps 601 at the openings. In this photovoltaic module, the outer shell 6 and the sealing end caps 601 at both ends can form a sealed space. Placing the light strip 7 in this sealed space can improve the protection of the light strip 7, reduce the failure rate of the light strip 7, and extend its service life. The sealing end caps 601 can be made of rubber and are fixed to the outer shell 6 with screws. While ensuring its sealing effect and installation firmness, the sealing end caps 601 can also be disassembled to facilitate the replacement and maintenance of the light strip 7 inside.

[0028] Further improvements include, for example Figure 2-6 As shown, two first conductive contacts 5, which are respectively connected to the positive and negative terminals of the battery cell 3, are fixedly connected to the glass panel 1. Two second conductive contacts 8, which are respectively connected to the positive and negative terminals of the light strip 7, are fixedly connected to the side of the outer casing 6 near the glass panel 1. The first conductive contacts 5 are connected to the second conductive contacts 8 through magnetic attraction.

[0029] Specifically, a first mounting hole is provided on the glass panel 1, and a first conductive contact 5 is fixed in the first mounting hole with sealant. The positive and negative output terminals of the battery cell 3 are respectively connected to the two first conductive contacts 5 through wires. A second mounting hole is provided on the outer casing 6, and a second conductive contact 8 is fixed in the second mounting hole with sealant. The positive and negative terminals of the light strip 7 are respectively connected to the two second conductive contacts 8 through wires. Thus, when the outer casing 6 is magnetically attached to the glass panel 1, the first conductive contact 5 and the second conductive contact 8 come into contact, forming an electrical circuit between the battery cell 3 and the light strip 7, allowing the battery cell 3 to supply power to the light strip 7 to make it emit light.

[0030] A further improvement is that the magnetic component is a permanent magnet 502. Of the first conductive contact 5 and the second conductive contact 8, one is fixedly connected to the permanent magnet 502, while the other is made of a ferromagnetic material. The ferromagnetic material is metallic iron. A first annular groove 503 is provided on the first conductive contact 5 for mounting the permanent magnet 502. Thus, when the first conductive contact 5 and the second conductive contact 8 come into contact, the permanent magnet 502 can attract them together, achieving power supply while simultaneously connecting the outer casing 6 to the glass panel 1, thus improving the ease of installation and removal of the light strip 7.

[0031] A further improvement is that the magnetic attractor is a permanent magnet 502. A permanent magnet 502 is fixedly connected to both the first conductive contact 5 and the second conductive contact 8. The two permanent magnets 502 on the two first conductive contacts 5 have opposite polarities on the sides facing the glass panel 1, and the two permanent magnets 502 on the two second conductive contacts 8 have opposite polarities on the sides facing the outer casing 6. The permanent magnets 502 on the first conductive contact 5 connected to the positive electrode of the solar cell 3 and the permanent magnets 502 on the second conductive contact 8 connected to the positive electrode of the light strip 7 have opposite polarities on their opposite sides. In the above photovoltaic module, by setting the polarity of the permanent magnets 502, when the polarities of the light strip 7 and the solar cell 3 are incorrectly matched, the permanent magnets 502 repel each other, preventing them from attracting each other. Only when the polarities of the light strip 7 and the solar cell 3 are correctly matched can the permanent magnets 502 attract each other, enabling the installation of the light strip 7 on the glass panel 1, thereby preventing incorrect positive and negative polarity connections between the light strip 7 and the solar cell 3.

[0032] Further improvements include, for example Figure 3 and 4 As shown, the first conductive contact 5 has a contact head 501, which protrudes from the surface of the glass panel 1. The housing 6 has a positioning recess 603 that matches the contact head 501. The contact head 501 and the positioning recess 603 can mutually limit each other, thereby realizing mutual limiting between the housing 6 and the glass panel 1 and improving the firmness of the housing 6 installation.

[0033] Further improvements include, for example Figure 3As shown, the contact head 501 is frustum-shaped. The four sides of the frustum-shaped contact head 501 are beveled, which can serve as a guide when installing the housing 6, thereby improving the ease of alignment between the contact head 501 and the positioning recess 603, and improving the ease of installation of the housing 6.

[0034] Further improvements include, for example Figure 4 and 5 As shown, the outer casing 6 has a second annular groove 604 for accommodating the sealing ring 602, and the positioning recess 603 is located inside the second annular groove 604. The sealing ring 602 enables a seal between the outer casing 6 and the glass panel 1, thereby providing sealing protection for the first conductive contact 5 and the second conductive contact 8, slowing down the corrosion rate of both and extending their service life.

[0035] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A self-emissive photovoltaic module, comprising a solar cell (3), wherein a glass panel (1) is fixedly connected to the front side of the solar cell (3) via an adhesive layer (2), and a glass backplate (4) is fixedly connected to the back side of the solar cell (3) via an adhesive layer (2), characterized in that: A light strip (7) is detachably connected to the glass panel (1) via a magnetic attachment. The light strip (7) is electrically connected to the battery cell (3). A busbar (301) is provided on the battery cell (3). Along the thickness direction of the battery cell (3), the busbar (301) is aligned with the light strip (7).

2. The self-emissive photovoltaic module according to claim 1, characterized in that, The light strip (7) is provided with a transparent outer shell (6), and both ends of the outer shell (6) are provided with openings that connect the inside and outside of the outer shell (6), and a sealing end cap (601) is provided at the opening.

3. The self-emissive photovoltaic module according to claim 2, characterized in that, The glass panel (1) is fixedly connected to two first conductive contacts (5) that are respectively connected to the positive and negative terminals of the battery cell (3). The outer shell (6) is fixedly connected to two second conductive contacts (8) that are respectively connected to the positive and negative terminals of the light strip (7) on the side adjacent to the glass panel (1). The first conductive contacts (5) are connected to the second conductive contacts (8) through magnetic attraction.

4. The self-emissive photovoltaic module according to claim 3, characterized in that, The magnetic attractor is a permanent magnet (502). Of the first conductive contact (5) and the second conductive contact (8), one is fixedly connected to a permanent magnet (502), and the other is made of ferromagnetic material.

5. The self-emissive photovoltaic module according to claim 3, characterized in that, The magnetic attractor is a permanent magnet (502). A permanent magnet (502) is fixedly connected to both the first conductive contact (5) and the second conductive contact (8). The two permanent magnets (502) on the two first conductive contacts (5) have opposite polarities on the side facing the glass panel (1). The two permanent magnets (502) on the two second conductive contacts (8) have opposite polarities on the side facing the outer shell (6). The permanent magnets (502) on the first conductive contact (5) connected to the positive pole of the battery cell (3) and the permanent magnets (502) on the second conductive contact (8) connected to the positive pole of the light strip (7) have opposite polarities on their opposite sides.

6. The self-emissive photovoltaic module according to claim 3, characterized in that, The first conductive contact (5) has a contact head (501) that protrudes from the surface of the glass panel (1), and the housing (6) has a positioning recess (603) that matches the contact head (501).

7. The self-emissive photovoltaic module according to claim 6, characterized in that, The contact head (501) is frustum-shaped.

8. The self-emissive photovoltaic module according to claim 6, characterized in that, The outer casing (6) has a second annular groove (604) for accommodating the sealing ring (602), and the positioning notch (603) is located inside the second annular groove (604).

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