A frustoconical flexible photovoltaic energy conversion module

Abstract

This invention discloses a frustum-shaped flexible photoelectric energy conversion module, comprising an optical fiber connector, a housing, and a photovoltaic cell. The optical fiber connector is fixedly disposed on the top of the housing. A frustum-shaped cavity is formed within the housing, and the photovoltaic cell is fixed within the cavity. The photovoltaic cell is a three-dimensional flexible energy transfer chip comprising multiple sub-cells connected in series. Each sub-cell comprises multiple arrayed nanowires with a radial PIN structure. A wire interface is provided on the housing. The input end of the photovoltaic cell is connected to an external input device via the optical fiber connector, and the output end of the photovoltaic cell passes through the wire interface and is connected to a power-consuming device. In this invention, the use of a nanowire array structure for the sub-cells increases the specific surface area, expands the longitudinal absorption area, saves projected area, reduces volume, and improves heat dissipation. Simultaneously, the nanoarray structure can significantly improve the light-harvesting capability and charge separation efficiency of the cell.

Description

Technical Field

[0001] This invention relates to the field of photoelectric energy conversion structure improvement technology, and more specifically to a frustum-shaped flexible photoelectric energy conversion module. Background Technology

[0002] Photoelectric energy conversion chips are a novel type of energy transmission facility. They transmit laser energy emitted from a semiconductor laser source to the chip surface via optical fiber, where a photovoltaic cell converts the laser energy into electrical energy, providing the necessary power to terminal devices. This energy transmission can reach distances of hundreds or even thousands of meters. However, currently available photoelectric energy conversion modules are complex in structure, requiring precise optical path control. Furthermore, photovoltaic cells are expensive and technically challenging. For example, a US company's dual-junction gallium arsenide power converter stacks two gallium arsenide cells to reduce size, requiring a precisely designed tunnel junction to control laser transmittance. However, the designed transmittance often only matches the laser at a specific frequency, and photoelectric conversion efficiency decreases when disturbances occur. Nevertheless, due to the characteristic that lasers are completely insensitive to high and low temperatures, radiation, and electromagnetic interference when transmitted through optical fibers, researching suitable photoelectric energy conversion modules is of great significance.

[0003] The existing modules have the following drawbacks:

[0004] 1. Traditional methods use multi-junction series cells, which require high purity raw materials and complex manufacturing processes, resulting in high costs and making them unsuitable for large-scale production and use.

[0005] 2. Photovoltaic conversion modules made using traditional methods have poor heat dissipation, requiring heat sinks. Furthermore, the substrate material is thick, resulting in bulky products that are space-constrained and unusable in many situations.

[0006] 3. The form of photoelectric conversion modules on the market is relatively fixed, and there are few applicable scenarios. Furthermore, due to their heavy weight and non-foldable nature, the effective area of ​​the photovoltaic cells is small, which greatly limits their output power.

[0007] A patent document with publication number CN 105762211 B discloses a photoelectric energy conversion module. The upper opening of the housing is connected to a cylindrical cavity formed inside the housing. A protrusion is formed on the inner wall of the housing at the lower end of the cavity. The optical device is embedded between the upper end face of the protrusion and the fixing ring of the optical device installed in the cavity. A flange joint is installed at the upper opening of the housing above the optical device. A photovoltaic cell is installed on the bottom surface of the cavity below the optical device. The photovoltaic cell is composed of multiple sub-cells connected in series. Each sub-cell is fan-shaped or triangular. The outer edge of the photovoltaic cell after splicing is circular or polygonal. The first sub-cell and the last sub-cell are respectively connected to the positive terminal and the negative terminal embedded on the bottom surface of the housing.

[0008] It makes the photovoltaic cell into a planar structure and connects the cells in series to improve the light intensity. However, its photovoltaic cell is fabricated on a gallium arsenide wafer, and the nanowires of the photovoltaic cell adopt a planar structure, resulting in poor heat dissipation. Summary of the Invention

[0009] The technical problem to be solved by this invention is how to improve the heat dissipation and light capture capability of the photovoltaic cells in the photoelectric energy conversion module.

[0010] The present invention solves the above-mentioned technical problems through the following technical means: a frustum-shaped flexible photoelectric energy conversion module, including an optical fiber connector, a housing, and a photovoltaic cell. The optical fiber connector is fixedly disposed on the top of the housing. A frustum-shaped cavity is formed inside the housing, and a photovoltaic cell is fixed inside the cavity. The photovoltaic cell is a three-dimensional flexible energy transfer chip, which includes multiple sub-cells connected in series. Each sub-cell includes multiple arrayed nanowires. The nanowires have a radial PIN structure. A wire interface is formed on the housing. The input end of the photovoltaic cell is connected to an external input device through the optical fiber connector, and the output end of the photovoltaic cell passes through the wire interface and is connected to an electrical device.

[0011] By dividing the photovoltaic cell module into multiple series-connected sub-cells, higher voltage and power output can be achieved. Depending on the specific needs of the device, different voltage levels can be obtained by changing the number of sub-cells, greatly expanding the application range of the optoelectronic module. This solves the problem that existing micro batteries can only provide a single voltage output. By adopting a nanowire array structure for the sub-cells, the specific surface area is increased, the longitudinal absorption area is expanded, the projected area is saved, the volume is reduced, and the heat dissipation is improved. At the same time, the nanoarray structure can significantly improve the light-harvesting ability and charge separation efficiency of the battery.

[0012] As a preferred technical solution, the sub-cell further includes a substrate, which is made of metal. The PIN structure includes a p-type gallium arsenide layer, an i-type gallium arsenide layer, and an n-type gallium arsenide layer sequentially disposed on the top of the substrate from bottom to top. Multiple PIN structures are integrated on the top of the substrate. The radial PIN structure design simplifies the device process, reduces the device manufacturing cost, and keeps the minority carrier diffusion length within a controllable range.

[0013] As a preferred technical solution, the multiple sub-batteries are fan-shaped structures, and the inner wall of the cavity is provided with grooves adapted to the sub-batteries. The multiple sub-batteries are fixedly connected in the grooves and form a conical or frustum-shaped structure.

[0014] As a preferred technical solution, the bottom of the cavity is provided with a silver plating layer, and the groove is coated with an insulating coating. The insulating coating can prevent the metal shell from contacting the photovoltaic cell and causing a short circuit, thereby improving the stability of the module.

[0015] As a preferred technical solution, the cavity is filled with a transparent sphere. One end of the transparent sphere is bonded and fixed to an adjacent transparent sphere with epoxy resin crystal epoxy resin, and the other end of the transparent sphere is bonded and fixed to the inner wall of the cavity with epoxy resin crystal epoxy resin. The silver plating layer, the transparent sphere, and the epoxy resin crystal epoxy resin form a scattering light path, which allows the laser introduced by the fiber optic connector to be uniformly projected onto the photovoltaic cell, increasing the stability of the structure, facilitating laser propagation, and providing good thermal conductivity.

[0016] As a preferred technical solution, the top of the housing is provided with a flange, the fiber optic connector is fixed to the housing through the flange, the fiber optic connector is used to insert fiber optic cables, and a waterproof gasket is also embedded between the flange and the housing.

[0017] As a preferred technical solution, the bottom of the housing is fixedly connected to a housing chassis, and also includes a detachable chassis. The chassis has housing limiting holes adapted to the housing chassis and is connected and fastened to it by housing chassis connecting bolts. Chassis bolt limiting holes are opened on both sides of the chassis, and chassis bolts are provided in the limiting holes.

[0018] As a preferred technical solution, the positive and negative terminals of the photovoltaic cell extend outside the housing, and the housing is provided with a wire interface that is compatible with it. The front of the sub-cell is the negative electrode and has interdigitated electrodes fixed vertically. The back of the sub-cell is a copper-clad layer, which is the positive electrode of the sub-cell, and a copper sheet is provided at the position corresponding to the interdigitated electrodes. The size of the copper sheet is smaller than the negative electrode area of ​​the sub-cell, one end of which is fixedly connected to the positive electrode of the sub-cell, and the other end is connected to the negative electrode of the adjacent sub-cell.

[0019] As a preferred technical solution, the system also includes a cable and a fixing wire. The housing is fixedly connected to the cable via the fixing wire, and the testing instrument is connected to the interface of the wire.

[0020] As a preferred technical solution, it also includes a coal mine rock wall and optical fiber. The housing is fixed to the coal mine rock wall by a chassis. The optical fiber is plugged into an optical fiber connector and charges the photovoltaic cell. The output end of the photovoltaic cell is connected to the electrical device.

[0021] The advantages of this invention are:

[0022] (1) In this invention, by dividing the photovoltaic cell into multiple series-connected sub-cells, it is possible to output higher voltage and power. According to the specific needs of the device, different voltage levels can be obtained by changing the number of sub-cells, which greatly improves the application range of the optoelectronic module and solves the defect that the existing micro battery can only provide a single voltage output. The sub-cells adopt a nanowire array structure, which increases the specific surface area, expands the longitudinal absorption area, saves the projected area, reduces the volume, and improves heat dissipation. At the same time, the nanoarray structure can significantly improve the light capture capability and charge separation efficiency of the battery. Its radial PIN junction design simplifies the device process, reduces the device manufacturing cost, and keeps the minority carrier diffusion length within a controllable range.

[0023] (2) In this invention, by setting an insulating coating, the stability of the module can be improved to prevent short circuit caused by contact between the metal housing and the photovoltaic cell.

[0024] (3) In this invention, a scattering light path is formed by a silver plating layer, a transparent sphere and an epoxy resin crystal epoxy resin, so that the laser introduced by the fiber optic connector can be uniformly projected onto the photovoltaic cell, which increases the stability of the structure, facilitates the propagation of the laser, and has good thermal conductivity.

[0025] (4) In this invention, the positive and negative terminals of the photovoltaic cell are led out through the wire interface on the side wall of the housing, which can be connected to wire interfaces of different specifications to meet the output interface requirements of different products.

[0026] (5) In this invention, by setting the chassis to be detachable, it can be freely disassembled according to the usage scenario, which facilitates the maintenance and inspection of the product. Attached Figure Description

[0027] Figure 1 This is a front view structural diagram of a frustum-shaped flexible photoelectric energy conversion module provided in Embodiment 1 of the present invention;

[0028] Figure 2 This is a cross-sectional structural diagram of a frustum-shaped flexible photoelectric energy conversion module provided in Embodiment 1 of the present invention;

[0029] Figure 3 This is an exploded structural diagram of a frustum-shaped flexible photoelectric energy conversion module provided in Embodiment 1 of the present invention;

[0030] Figure 4 This is a schematic diagram of the unfolded structure of a photovoltaic cell for a frustum-shaped flexible photoelectric energy conversion module provided in Embodiment 1 of the present invention;

[0031] Figure 5 This is a schematic diagram of the substrate structure of a frustum-shaped flexible optoelectronic energy conversion module provided in Embodiment 1 of the present invention;

[0032] Figure 6 This is a schematic diagram of the nanowire structure of a frustum-shaped flexible photoelectric energy conversion module provided in Embodiment 1 of the present invention;

[0033] Figure 7 This is a side view of a frustum-shaped flexible photoelectric energy conversion module provided in Embodiment 1 of the present invention;

[0034] Figure 8 This is a rear view structural diagram of a frustum-shaped flexible photoelectric energy conversion module provided in Embodiment 1 of the present invention;

[0035] Figure 9 This is a top view of a frustum-shaped flexible photoelectric energy conversion module provided in Embodiment 1 of the present invention;

[0036] Figure 10 This is a schematic diagram of a frustum-shaped flexible photoelectric energy conversion module provided in Embodiment 2 of the present invention;

[0037] Figure 11 This is a schematic diagram of a frustum-shaped flexible photoelectric energy conversion module provided in Embodiment 3 of the present invention;

[0038] Reference numerals: 1. Fiber optic connector; 2. Flange; 3. Flange connecting bolts; 4. Flange opening; 5. Waterproof gasket; 6. Transparent sphere; 7. Insulating coating; 8. Housing; 9. Wire interface; 10. Silver plating layer; 11. Housing chassis; 12. Chassis bolts; 13. Chassis; 14. Chassis bolt limiting hole; 15. Housing limiting hole; 16. Housing chassis connecting bolts; 17. Photovoltaic cell; 18. Connecting copper sheet; 19. Positive terminal; 20. Negative terminal; 21. Negative electrode; 22. Interdigitated electrode; 23. Epoxy resin crystal epoxy resin; 24. Cable; 25. Fixing wire; 26. Fiber optic cable; 27. Coal mine rock wall; 28. Nanowire; 29. ​​Substrate. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1

[0041] See Figure 1 , Figure 2 , Figure 3A frustum-shaped flexible photoelectric energy conversion module includes: an optical fiber connector 1, a flange 2, flange connecting bolts 3, flange opening 4, a waterproof gasket 5, a transparent sphere 6, an insulating coating 7, a housing 8, a wire interface 9, a housing chassis 11, chassis bolts 12, a chassis 13, chassis bolt limiting holes 14, housing limiting holes 15, housing chassis connecting bolts 16, a photovoltaic cell 17, a connecting copper sheet 18, a positive terminal 19, a negative terminal 20, a negative electrode 21, an interdigitated electrode 22, and epoxy resin crystal epoxy resin 23 (not shown in the figure).

[0042] See Figure 2 The fiber optic connector 1 is fixedly mounted on the top of the housing 8. The housing 8 and flange 2 are made of metal plates (aluminum or copper). In this embodiment, the housing 8 has a frustum-shaped structure, and a frustum-shaped cavity is formed inside the housing 8. A photovoltaic cell 17 is fixed inside the cavity. The photovoltaic cell 17 is a flexible energy transfer chip with a three-dimensional structure. (See reference...) Figure 4 , Figure 5 , Figure 6 The photovoltaic cell 17 includes multiple fan-shaped sub-cells connected in series. Each sub-cell includes multiple arrayed nanowires 28 and a substrate 29. The substrate 29 is made of metal, and the nanowires 28 are radial PIN structures. A wire interface 9 is provided on the housing 8. The input end of the photovoltaic cell 17 is connected to an external input device through an optical fiber connector 1. The output end of the photovoltaic cell 17 passes through the wire interface 9 and is connected to the power device. The PIN structure includes a p-type gallium arsenide layer, an i-type gallium arsenide layer, and an n-type gallium arsenide layer sequentially wrapped around the top of the substrate 29 from bottom to top. Multiple PIN structures are directly integrated on the top of the metal substrate 29. In this embodiment, the photovoltaic cell 17 is a conical or frustum-shaped structure.

[0043] By decomposing the photovoltaic cell 17 into multiple series-connected sub-cells, higher voltage and power can be output. Depending on the specific needs of the device, different voltage levels can be obtained by changing the number of sub-cells, greatly improving the application range of the optoelectronic module. This solves the problem that existing micro batteries can only provide a single voltage output. The sub-cells adopt a nanowire array structure 28, which increases the specific surface area, expands the longitudinal absorption area, saves the projected area, reduces the volume, and improves heat dissipation. At the same time, the nanoarray structure can significantly improve the light capture capability and charge separation efficiency of the battery. Its radial PIN junction design simplifies the device process, reduces the device manufacturing cost, and keeps the minority carrier diffusion length within a controllable range.

[0044] See Figure 4The photovoltaic cell 17 has a positive terminal 19 and a negative terminal 20 fixedly connected to its two ends. The positive terminal 19 and the negative terminal 20 of the photovoltaic cell extend out of the housing 8 through the wire interface 9. The housing 8 has a wire interface 9 that is compatible with it. The front of the sub-cell is the negative electrode and has an interdigitated electrode 22 fixed vertically. The back of the sub-cell is a copper-clad layer, which is the positive electrode of the sub-cell. A connecting copper sheet 18 is provided at the position corresponding to the interdigitated electrode 22. The size of the connecting copper sheet 18 is smaller than the negative electrode area of ​​the sub-cell. One end of it is fixedly connected to the positive electrode of the sub-cell, and the other end is connected to the negative electrode of the adjacent sub-cell. In this embodiment, there are six sub-cells, which are connected in sequence to form the photovoltaic cell 17. This photovoltaic cell 17 is an ultra-thin flexible gallium arsenide energy transfer chip, which is small in size, flexible, has good heat dissipation performance, and stable operation.

[0045] See Figure 3 The cavity has a groove on its inner wall that is compatible with the sub-cell. The groove is coated with an insulating coating 7. The bottom of the cavity has a silver plating layer 10. A transparent sphere 6 is filled in the cavity. One end of the transparent sphere 6 is bonded to an adjacent transparent sphere 6 with epoxy resin crystal epoxy resin 23. The other end of the transparent sphere 6 is bonded to the inner wall of the cavity with epoxy resin crystal epoxy resin 23. The transparent sphere 6 is made of glass or plastic and is used to scatter the incident laser. The epoxy resin crystal epoxy resin 23 has the characteristics of being transparent, bubble-free after solidification, and having excellent thermal conductivity. It is used to fix the transparent sphere 6 inside the cavity and also plays a role in heat dissipation. In order to prevent the metal shell 8 from contacting the photovoltaic cell 17 and causing a short circuit, an insulating coating 7 needs to be applied to the side wall of the cavity.

[0046] See Figure 3 , Figure 9 The top of the housing 8 is fixedly connected to the flange 2 via bolts 3 at the flange. (See reference) Figure 8 A waterproof gasket 5 is also embedded between flange 2 and housing 8. Bolts 3 at the flange pass through the waterproof gasket 5, connecting and securing flange 2, waterproof gasket 5, and housing 8. A flange opening 4 is provided at the top of flange 2, and an optical fiber connector 1 is fixedly connected to the flange opening 4. A housing base 11 is fixedly connected to the bottom of housing 8. (See reference...) Figure 7 The chassis 13 and the bottom plate of the housing 8 are detachably connected. The bottom plate 13 has a housing limiting hole 15 that matches the housing chassis 11. The chassis 13 is fixedly connected to the housing chassis 11 by the housing chassis connecting bolt 16. The bottom plate 13 has chassis bolt limiting holes 14 on both sides. The chassis bolt 12 passes through the chassis bolt limiting holes 14 and is fixedly connected to the external fasteners, thus fixing the chassis 13.

[0047] The production method includes the following steps:

[0048] S1. Using stamping, stretching, and punching molds, and employing cold stamping technology, aluminum plates, copper plates, stainless steel plates, etc. are processed and subjected to certain surface treatments (anodizing, chrome plating, nickel-gold plating, etc.) to finally become a shell 8.

[0049] S2. After degreasing and removing rust from the prepared frustum-shaped shell 8, it is immersed in a solution prepared with mercuric chloride and other substances to carry out mercury treatment, so that a mercury film is plated on the bottom surface of the cavity; the part is used as the cathode and the pure silver plate is used as the anode, and it is immersed in a silver potassium cyanide electrolyte prepared with silver nitrate and potassium cyanide to carry out electroplating, and finally a silver plating layer 10 is formed at the bottom of the cavity.

[0050] S3. Using non-destructive laser scribing technology, the gallium arsenide photovoltaic cell is cut into the required size. Several cut sub-cells and the connecting copper plates 18 required for series connection are connected in series using conductive silver paste. After connection, ultrasonic cleaning is performed to remove excess conductive silver paste. After cleaning, each sub-cell is pasted onto the cavity sidewall using thermally conductive adhesive, and the positive and negative terminals of the photovoltaic cell 17 are led out to the wire interface 9.

[0051] S4. Print silver paste or thermally conductive adhesive in the corresponding grooves on the cavity sidewall. Use a jig (to improve assembly accuracy) to attach each sub-cell to the cavity sidewall. If the silver paste and thermally conductive adhesive need to be cured at a certain temperature, a heating box is required to heat the bonded shell and ceramic substrate as a whole. Then remove the jig.

[0052] S5. Print silver paste at the opening of the housing 8, pass the positive and negative electrodes of the photovoltaic cell 17 through the housing 8 in turn, and put it into the heating box for heating and curing.

[0053] S6. Fill the cavity with glass spheres after installing the photovoltaic cell 17. Stack the spheres layer by layer using the densest stacking method. After stacking, fill the cavity with epoxy resin crystal epoxy 23. Mix the A glue and B glue in a weight ratio of 3:1 and stir thoroughly. After stirring evenly, pour the glue in time. During the curing process, keep the shell 8 horizontal to prevent the glue from overflowing during the curing process.

[0054] S7. Install flange 2 on the upper side of housing 8, add waterproof gasket 5 between the lower side of flange 2 and housing 8, and seal flange 2 with sealant.

[0055] S8. The wire interface 9 can be made into different specifications of power supply interfaces as needed, such as Micro USB interface, Type-C interface and Lightning interface.

[0056] Example 2

[0057] See Figure 10The difference between this embodiment and Embodiment 1 is that it provides a specific application scenario, namely, suspending the energy conversion module in the high-voltage cable 24 to charge the corresponding instrument. The high-voltage cable 24 requires necessary detection instruments (such as Hall sensors) for real-time monitoring, but the operation of the instrument requires power. Traditional solar cells have low power and large size, making them unsuitable for powering the detection instrument. In this embodiment, the chassis 13 can be separated from the housing 8, and various suitable bases can be installed as needed. In this embodiment, the high-voltage cable 24 and the chassis 13 can be connected by a fixing wire 25, so that the housing 8 can be suspended on the cable 24. At this time, the detection instrument can be connected to the wire interface 9 for charging, which can realize the long-term use of the detection instrument without manual replacement, greatly improving the safety and convenience of working in a high-voltage environment.

[0058] Example 3

[0059] The difference between this embodiment and Embodiment 2 is that the application scenarios are different;

[0060] See Figure 11 This embodiment provides a specific example of the invention for charging corresponding instruments by fixing them to the coal mine rock wall 27. The housing 8 and the chassis 13 are connected by chassis bolts 12, which can be fixed to the coal mine rock wall 27 to ensure stable operation. The optical fiber 26 is inserted into the optical connector 1, and by leading the optical fiber 26 to a safe area such as the ground, the device can be charged using laser. Similarly, electrical devices or power-consuming devices in the coal mine (such as lamps) can be connected to the wire interface 9 for charging. By supplying power to power-consuming devices in the coal mine, the safety of coal mine operations can be greatly improved, and the number of times workers enter and exit the coal mine can be reduced.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A frustum-shaped flexible photoelectric energy conversion module, characterized in that, The device includes an optical fiber connector, a housing, and a photovoltaic cell. The optical fiber connector is fixedly mounted on the top of the housing. The housing has a frustum-shaped cavity, and the photovoltaic cell is fixed inside the cavity. The photovoltaic cell is a three-dimensional flexible energy transfer chip, which includes multiple sub-cells connected in series. Each sub-cell includes multiple arrayed nanowires with a radial PIN structure. The housing has a wire interface. The input end of the photovoltaic cell is connected to an external input device through the optical fiber connector, and the output end of the photovoltaic cell passes through the wire interface and is connected to an electrical device. Each sub-cell has a fan-shaped structure. The inner wall of the cavity has grooves adapted to the sub-cells, and the multiple sub-cells are fixedly connected in the grooves to form a conical or frustum-shaped structure.

2. The frustum-shaped flexible photoelectric energy conversion module according to claim 1, characterized in that, The sub-battery also includes a substrate, which is made of metal. The PIN structure includes a p-type gallium arsenide layer, an i-type gallium arsenide layer, and an n-type gallium arsenide layer, which are sequentially disposed on the top of the substrate from bottom to top. Multiple PIN structures are integrated on the top of the substrate.

3. The frustum-shaped flexible photoelectric energy conversion module according to claim 1, characterized in that, The bottom of the cavity is provided with a silver plating layer, and the groove is coated with an insulating coating.

4. The frustum-shaped flexible photoelectric energy conversion module according to claim 1, characterized in that, The cavity is filled with transparent spheres. One end of each transparent sphere is bonded and fixed to an adjacent transparent sphere with epoxy resin crystal epoxy resin, and the other end of each transparent sphere is bonded and fixed to the inner wall of the cavity with epoxy resin crystal epoxy resin.

5. The frustum-shaped flexible photoelectric energy conversion module according to claim 1, characterized in that, The top of the housing is provided with a flange, and the fiber optic connector is fixed to the housing through the flange. The fiber optic connector is used to insert fiber optic cables, and a waterproof gasket is also embedded between the flange and the housing.

6. The frustum-shaped flexible photoelectric energy conversion module according to claim 1, characterized in that, It also includes a detachable chassis, with a chassis fixedly connected to the bottom of the housing. The chassis has a housing limiting hole adapted to the chassis and is connected and fastened to it by chassis connecting bolts. Chassis bolt limiting holes are provided on both sides of the chassis, and chassis bolts are provided in the limiting holes.

7. A frustum-shaped flexible photoelectric energy conversion module according to claim 1, characterized in that, The positive and negative terminals of the photovoltaic cell extend outside the housing. The housing has a wire interface that is compatible with it. The front of the sub-cell is the negative electrode and has interdigitated electrodes fixed vertically. The back of the sub-cell is a copper-clad layer, which is the positive electrode of the sub-cell. A copper sheet is provided at the position corresponding to the interdigitated electrodes. The size of the copper sheet is smaller than the negative electrode area of ​​the sub-cell. One end of the copper sheet is fixedly connected to the positive electrode of the sub-cell, and the other end is connected to the negative electrode of the adjacent sub-cell.

8. The frustum-shaped flexible photoelectric energy conversion module according to claim 1, characterized in that, It also includes cables and fixing wires. The housing is fixedly connected to the cable via the fixing wires, and the testing instrument is connected to the interface of the wires.

9. A frustum-shaped flexible photoelectric energy conversion module according to claim 6, characterized in that, It also includes a coal mine rock wall and optical fiber. The housing is fixed to the coal mine rock wall by a chassis. The optical fiber is plugged into the optical fiber connector and charges the photovoltaic cell. The output end of the photovoltaic cell is connected to the electrical device.

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