Multi-main-grid monocrystalline silicon photovoltaic cell piece capable of improving photoelectric conversion efficiency

Abstract

The utility model discloses a multi-main-grid monocrystalline silicon photovoltaic cell capable of improving photoelectric conversion efficiency, which belongs to the technical field of photovoltaic cells and comprises a frame. Clamping assemblies are fixedly connected to the upper end of the rack at equal intervals; multi-main-grid monocrystalline silicon is clamped and fixed at the front end and the rear end of the clamping assembly; the rack is connected with a self-cleaning assembly; the self-cleaning assembly is connected with a cooling assembly; the cooling assembly comprises a water storage cavity, a partition plate, an L-shaped water outlet pipe, a water outlet hole, an elastic assembly and a cover plate. The output end of the motor drives the threaded rod to rotate, the threaded rod drives the cleaning rod to move on the threaded rod, the cleaning strip cleans the surface of the multi-main-grid monocrystalline silicon, and the photoelectric conversion efficiency is improved through timely cleaning of the surface of the multi-main-grid monocrystalline silicon. Water is injected into the lower cavity of the water storage cavity, and the water uniformly flows into the L-shaped water outlet pipe from the lower part of the cover plate and is sprayed to the multi-main-grid monocrystalline silicon, so that uniform cooling of the surface of the multi-main-grid monocrystalline silicon is realized, and the photoelectric conversion efficiency is prevented from being influenced by too high temperature of the multi-main-grid monocrystalline silicon.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cells, and in particular to a multi-main-grid single-crystal silicon photovoltaic cell sheet capable of improving photoelectric conversion efficiency. Background Art

[0002] The photoelectric conversion efficiency of monocrystalline silicon cells is higher than that of polycrystalline silicon and amorphous silicon solar cells; the mainstream on the market is currently 5-busbar, and multi-busbar usually refers to 12-busbar. The increase in busbars improves the photoelectric conversion efficiency.

[0003] For example, Chinese patent CN217486433U proposes a high-efficiency monocrystalline silicon solar cell module, which relates to the field of solar cell technology, including a bottom protective shell and a top protective shell, wherein a servo motor is fixedly installed inside the bottom protective shell, and a gear is fixedly installed outside the output shaft of the servo motor. The high-efficiency monocrystalline silicon solar cell module uses a servo motor and a gear as well as a deflection plate and a movable shaft to cooperate with each other, so that when the fixed plate and the monocrystalline silicon module are working, as the working time changes, the servo motor can start and drive the gear to rotate through its output shaft, and then drive the fixed plate and the monocrystalline silicon module to achieve a certain angle of deflection, so that the monocrystalline silicon module can receive direct sunlight and improve the working effect.

[0004] However, the above patent cannot achieve automatic cleaning. When dust or dirt accumulates on the battery, the photoelectric conversion efficiency will be affected. When the battery surface temperature is too high in summer, the photoelectric conversion efficiency will also decrease. The above patent cannot achieve cooling of the battery surface.

[0005] Based on this, the utility model designs a multi-main-grid monocrystalline silicon photovoltaic cell sheet which can improve the photoelectric conversion efficiency to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a multi-main-grid single-crystal silicon photovoltaic cell sheet which can improve the photoelectric conversion efficiency.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A multi-main-grid monocrystalline silicon photovoltaic cell sheet capable of improving photoelectric conversion efficiency, comprising a frame;

[0009] A plurality of groups of clamping components for clamping and fixing are fixedly connected at equal intervals on the upper end of the frame;

[0010] The front and rear ends of the clamping assembly both clamp and fix multi-main-gate single crystal silicon;

[0011] The frame is connected with a self-cleaning component for automatically cleaning the multi-main-grid single-crystal silicon so as to improve the photoelectric conversion efficiency;

[0012] The self-cleaning component is connected to a cooling component for uniformly spraying cold water on the multi-main-grid single-crystalline silicon to cool the multi-main-grid single-crystalline silicon;

[0013] The cooling component includes a water storage chamber, a partition, an L-shaped water outlet pipe, a water outlet hole, an elastic component and a cover plate. A water storage chamber is opened on the self-cleaning component, and a partition is fixedly connected to the water storage chamber. The partition divides the water storage chamber into an upper chamber and a lower chamber. A plurality of groups of water outlet holes are opened at equal intervals on the partition. A plurality of groups of L-shaped water outlet pipes for draining water overflowing from the water outlet holes are fixedly connected to the top of the partition located above the water outlet holes. The lower end of the elastic component is fixedly connected to the top of the partition located outside the water outlet hole, and the upper end of the elastic component is fixedly connected to the cover plate.

[0014] Furthermore, the elastic component is located inside the L-shaped water outlet pipe.

[0015] Furthermore, the cover plate is located inside the L-shaped water outlet pipe.

[0016] Furthermore, a pressure sensor and a temperature sensor are installed on the multi-main-gate single-crystal silicon.

[0017] Furthermore, the self-cleaning component includes a motor, a threaded rod and a cleaning rod. The motor is fixedly connected to the corresponding positions on the left and right sides of the rear end of the frame, the output end of the motor is fixedly connected to the threaded rod, and the cleaning rod is threadedly connected between the left and right groups of threaded rods.

[0018] Furthermore, a plurality of groups of cleaning strips are fixedly connected at equal intervals to the lower end of the cleaning rod.

[0019] Furthermore, a water storage chamber is provided inside the cleaning rod.

[0020] Furthermore, a water inlet is provided on the cleaning rod, and cold water in the external cold water collection tank flows to the water inlet through a pipeline.

[0021] Furthermore, a water channel for collecting and discharging sewage is provided on the frame, and the water in the water channel flows back to the external cold water collection tank through a pipeline.

[0022] Furthermore, a plurality of groups of mutually parallel gate lines are arranged on the light absorption surface of the multi-main-gate single-crystal silicon 2, and drainage lines are respectively arranged on the light absorption surface and the backlight surface of the multi-main-gate single-crystal silicon 2, and the drainage lines run through all the gate lines.

[0023] The utility model has the following technical effects:

[0024] 1. When the surface temperature of the multi-main-grid monocrystalline silicon is too high, the utility model fills the lower chamber of the water storage chamber with water. When the water level rises to the partition, the gravity of the cover plate itself compresses the elastic component downward, and the water in the water storage chamber overflows from the water outlet hole evenly to push the cover plate upward. The cover plate drives the elastic component to stretch upward. At this time, the water flows evenly from the bottom of the cover plate to the L-shaped water outlet pipe. The water outlet of the L-shaped water outlet pipe is located above the multi-main-grid monocrystalline silicon. The water is evenly sprayed toward the multi-main-grid monocrystalline silicon along the L-shaped water outlet pipe, thereby achieving uniform cooling of the surface of the multi-main-grid monocrystalline silicon and preventing the multi-main-grid monocrystalline silicon from affecting the photoelectric conversion efficiency due to excessively high temperature.

[0025] 2. When dirt falls off the surface of the multi-main-grid monocrystalline silicon or dust accumulates, the utility model starts the motor, the output end of the motor drives the threaded rod to rotate, the threaded rod drives the cleaning rod to move back and forth on the threaded rod, and the cleaning strip on the cleaning rod cleans the surface of the multi-main-grid monocrystalline silicon, thereby preventing dirt or dust from affecting the lighting effect of the multi-main-grid monocrystalline silicon, and timely cleaning of the surface of the multi-main-grid monocrystalline silicon improves the photoelectric conversion efficiency; when the dirt on the surface of the multi-main-grid monocrystalline silicon is difficult to clean, cold water is introduced into the water inlet on the cleaning rod through an external cold water collection tank, and the water is collected in the water storage cavity and evenly sprayed toward the multi-main-grid monocrystalline silicon along the L-shaped water outlet pipe. At this time, the multi-main-grid monocrystalline silicon is cleaned in conjunction with the cleaning rod, which is convenient for removing stubborn stains and improving the photoelectric conversion efficiency.

[0026] 3. In the utility model, when water is uniformly sprayed toward the multi-main-grid monocrystalline silicon along the L-shaped water outlet pipe, part of the water is evaporated, and the remaining water is pushed into the water guide groove on the rack by the cleaning strip of the cleaning rod, and flows back to the external cold water collection tank for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 The utility model is a three-dimensional multi-main grid single crystal silicon photovoltaic cell sheet which can improve the photoelectric conversion efficiency. Figure 1 ;

[0029] Figure 2 This is a front view of a multi-main-grid single-crystal silicon photovoltaic cell capable of improving photoelectric conversion efficiency according to the utility model;

[0030] Figure 3 The utility model is a three-dimensional multi-main grid single crystal silicon photovoltaic cell sheet which can improve the photoelectric conversion efficiency. Figure 2 ;

[0031] Figure 4 This is a schematic diagram of the structure of a multi-main-grid single-crystal silicon photovoltaic cell that can improve the photoelectric conversion efficiency of the utility model. Figure 1 ;

[0032] Figure 5 This is a schematic diagram of the structure of a multi-main-grid single-crystal silicon photovoltaic cell that can improve the photoelectric conversion efficiency of the utility model. Figure 2 ;

[0033] Figure 6 for Figure 5 The enlarged view of point A in the middle;

[0034] Figure 7 The utility model is a structural schematic diagram of a multi-main-grid single-crystal silicon photovoltaic cell that can improve the photoelectric conversion efficiency.

[0035] The numbers in the figure represent:

[0036] 1. Rack; 2. Multi-main-grid monocrystalline silicon; 3. Clamping assembly; 4. Self-cleaning assembly; 41. Motor; 42. Threaded rod; 43. Cleaning rod; 5. Cooling assembly; 51. Water storage chamber; 52. Partition; 53. L-shaped water outlet pipe; 54. Water outlet hole; 55. Elastic assembly; 56. Cover plate. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] The utility model is further described below in conjunction with embodiments.

[0039] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0040] Example 1

[0041] Please refer to the instruction manual Figure 1-7 , a multi-main-grid monocrystalline silicon photovoltaic cell capable of improving photoelectric conversion efficiency, comprising a frame 1;

[0042] A plurality of clamping components 3 for clamping and fixing are fixedly connected at equal intervals to the upper end of the frame 1;

[0043] The front and rear ends of the clamping assembly 3 clamp and fix the multi-main-gate single crystal silicon 2;

[0044] The frame 1 is connected with a self-cleaning component 4 for automatically cleaning the multi-main-gate single-crystal silicon 2 to improve the photoelectric conversion efficiency;

[0045] The self-cleaning component 4 is connected to a cooling component 5 for uniformly spraying cold water on the multi-main-gate single-crystal silicon 2 to cool the multi-main-gate single-crystal silicon 2;

[0046] The cooling component 5 includes a water storage chamber 51, a partition 52, an L-shaped water outlet pipe 53, a water outlet hole 54, an elastic component 55 and a cover plate 56. The self-cleaning component 4 is provided with a water storage chamber 51, and a partition 52 is fixedly connected to the water storage chamber 51. The partition 52 divides the water storage chamber 51 into an upper chamber and a lower chamber. A plurality of groups of water outlet holes 54 are evenly spaced on the partition 52. A plurality of groups of L-shaped water outlet pipes 53 for guiding water overflowing from the water outlet holes 54 are fixedly connected to the top of the partition 52 located above the water outlet holes 54. The lower end of the elastic component 55 is fixedly connected to the top of the partition 52 located outside the water outlet hole 54, and the upper end of the elastic component 55 is fixedly connected to the cover plate 56.

[0047] The elastic component 55 is located inside the L-shaped water outlet pipe 53;

[0048] The cover plate 56 is located inside the L-shaped water outlet pipe 53;

[0049] A pressure sensor and a temperature sensor are installed on the multi-main-gate single crystal silicon 2;

[0050] When the surface temperature of the multi-main-grid monocrystalline silicon 2 is too high, water is poured into the lower chamber of the water storage chamber 51. When the water level rises to the partition 52, the gravity of the cover plate 56 compresses the elastic component 55 downward, and the water in the water storage chamber 51 overflows from the water outlet 54 evenly to push the cover plate 56 upward. The cover plate 56 drives the elastic component 55 to stretch upward. At this time, water flows evenly from the bottom of the cover plate 56 to the L-shaped water outlet pipe 53. The outlet of the L-shaped water outlet pipe 53 is located above the multi-main-grid monocrystalline silicon 2. Water is evenly sprayed toward the multi-main-grid monocrystalline silicon 2 along the L-shaped water outlet pipe 53, thereby achieving uniform cooling of the surface of the multi-main-grid monocrystalline silicon 2 and preventing the multi-main-grid monocrystalline silicon 2 from affecting the photoelectric conversion efficiency due to excessive temperature.

[0051] Example 2

[0052] like Figure 1-7 As shown, as a preferred embodiment of the utility model, the self-cleaning assembly 4 includes a motor 41, a threaded rod 42 and a cleaning rod 43. The motor 41 is fixedly connected to the corresponding positions on the left and right sides of the rear end of the frame 1, and the output end of the motor 41 is fixedly connected to the threaded rod 42. The cleaning rod 43 is threadedly connected between the left and right sets of threaded rods 42;

[0053] The lower end of the cleaning rod 43 is fixedly connected with a plurality of groups of cleaning strips at equal intervals;

[0054] The cleaning rod 43 has a water storage chamber 51 formed inside.

[0055] The cleaning rod 43 is provided with a water inlet, and cold water from the external cold water collection tank flows to the water inlet through a pipe;

[0056] The elastic component 55 is a spring;

[0057] When dirt falls off or dust accumulates on the surface of the multi-main-grid single-crystalline silicon 2, the motor 41 is started, and the output end of the motor 41 drives the threaded rod 42 to rotate, and the threaded rod 42 drives the cleaning rod 43 to move back and forth on the threaded rod 42, and the cleaning strip on the cleaning rod 43 cleans the surface of the multi-main-grid single-crystalline silicon 2, thereby preventing dirt or dust from affecting the lighting effect of the multi-main-grid single-crystalline silicon 2, and timely cleaning of the surface of the multi-main-grid single-crystalline silicon 2 improves the photoelectric conversion efficiency;

[0058] When the dirt on the surface of the multi-main-grid monocrystalline silicon 2 is difficult to clean, cold water is introduced into the water inlet on the cleaning rod 43 through the external cold water collection tank, and the water is collected in the water storage chamber 51 and sprayed evenly along the L-shaped water outlet pipe 53 toward the multi-main-grid monocrystalline silicon 2. At this time, the cleaning rod 43 is used to clean the multi-main-grid monocrystalline silicon 2, which is convenient for removing stubborn stains and improving the photoelectric conversion efficiency;

[0059] The frame 1 is provided with a water channel for collecting and draining sewage, and the water in the water channel flows back to the external cold water collection tank through a pipeline;

[0060] When water is uniformly sprayed toward the multi-main-grid monocrystalline silicon 2 along the L-shaped water outlet pipe 53, part of the water is evaporated, and the remaining water is pushed into the water guide groove on the frame 1 by the cleaning strip of the cleaning rod 43, and flows back to the external cold water collection tank for recycling.

[0061] Example 3

[0062] like Figure 1-7 As shown, as a preferred embodiment of the utility model, a plurality of groups of mutually parallel gate lines are provided on the light absorption surface of the multi-main-gate single crystal silicon 2, and the light absorption surface and the backlight surface of the multi-main-gate single crystal silicon 2 are respectively provided with drainage lines, and the drainage lines run through all the gate lines; thereby effectively improving the photoelectric conversion efficiency.

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will 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 multi-busbar monocrystalline silicon photovoltaic cell capable of improving photoelectric conversion efficiency, comprising a frame (1), characterized in that: A plurality of groups of clamping assemblies (3) for clamping and fixing are fixedly connected at equal intervals to the upper end of the frame (1); The front and rear ends of the clamping assembly (3) both clamp and fix the multi-main-gate single-crystal silicon (2); The frame (1) is connected with a self-cleaning component (4) for automatically cleaning the multi-main-gate single-crystal silicon (2) so as to improve the photoelectric conversion efficiency; The self-cleaning component (4) is connected to a cooling component (5) for uniformly spraying cold water onto the multi-main-gate single-crystal silicon (2) so as to cool the multi-main-gate single-crystal silicon (2); The cooling component (5) comprises a water storage chamber (51), a partition (52), an L-shaped water outlet pipe (53), a water outlet hole (54), an elastic component (55) and a cover plate (56). The self-cleaning component (4) is provided with a water storage chamber (51), the water storage chamber (51) is fixedly connected with a partition (52), the partition (52) divides the water storage chamber (51) into an upper chamber and a lower chamber, a plurality of groups of water outlet holes (54) are provided on the partition (52) at equal intervals, a plurality of groups of L-shaped water outlet pipes (53) for guiding water overflowing from the water outlet holes (54) are fixedly connected to the top of the partition (52) located above the water outlet holes (54), the lower end of the elastic component (55) is fixedly connected to the top of the partition (52) located outside the water outlet hole (54), and the upper end of the elastic component (55) is fixedly connected with the cover plate (56).

2. The multi-busbar single-crystal silicon photovoltaic cell capable of improving photoelectric conversion efficiency according to claim 1, characterized in that: The elastic component (55) is located inside the L-shaped water outlet pipe (53).

3. The multi-busbar single-crystal silicon photovoltaic cell capable of improving photoelectric conversion efficiency according to claim 2, characterized in that: The cover plate (56) is located inside the L-shaped water outlet pipe (53).

4. The multi-busbar single-crystal silicon photovoltaic cell capable of improving photoelectric conversion efficiency according to claim 3, characterized in that: A pressure sensor and a temperature sensor are installed on the multi-main-gate single-crystal silicon (2).

5. The multi-busbar single-crystal silicon photovoltaic cell capable of improving photoelectric conversion efficiency according to claim 4, characterized in that: The self-cleaning assembly (4) comprises a motor (41), a threaded rod (42) and a cleaning rod (43); the motor (41) is fixedly connected to corresponding positions on both left and right sides of the rear end of the frame (1); the output end of the motor (41) is fixedly connected to the threaded rod (42); and the cleaning rod (43) is threadedly connected between the left and right sets of threaded rods (42).

6. The multi-busbar single-crystal silicon photovoltaic cell capable of improving photoelectric conversion efficiency according to claim 5, characterized in that: The lower end of the cleaning rod (43) is fixedly connected with a plurality of groups of cleaning strips at equal intervals.

7. The multi-busbar single-crystal silicon photovoltaic cell capable of improving photoelectric conversion efficiency according to claim 6, characterized in that: A water storage chamber (51) is provided inside the cleaning rod (43).

8. The multi-busbar single-crystal silicon photovoltaic cell capable of improving photoelectric conversion efficiency according to claim 7, characterized in that: The cleaning rod (43) is provided with a water inlet, and cold water in the external cold water collection tank flows to the water inlet through a pipeline.

9. The multi-busbar single-crystal silicon photovoltaic cell capable of improving photoelectric conversion efficiency according to claim 8, characterized in that: The frame (1) is provided with a water guide trough for collecting and draining sewage, and the water in the water guide trough flows back to the external cold water collection tank through a pipeline.

10. The multi-busbar single-crystal silicon photovoltaic cell capable of improving photoelectric conversion efficiency according to claim 9, characterized in that: A plurality of groups of mutually parallel grid lines are arranged on the light absorption surface of the multi-main-gate single-crystal silicon (2), and drainage lines are respectively arranged on the light absorption surface and the backlight surface of the multi-main-gate single-crystal silicon (2), and the drainage lines run through all the grid lines.

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