A PERC battery with high conversion efficiency

Abstract

The present invention belongs to the technical field of PERC batteries, and particularly relates to a PERC battery with high conversion efficiency, including a bottom plate. Above the bottom plate, there is a table plate. The lower surface of the table plate is fixed with a turntable through a straight rod. The turntable is connected to the bottom plate through a rotating mechanism. At both ends of the upper surface of the table plate, sliding cylinders are symmetrically fixed. Inside the sliding cylinders, sliders are slidably connected. Between the two sliders, a lifting mechanism is connected for transmission. By setting the turntable and the rotating mechanism in the present invention, the table plate can rotate with the turntable. By setting the first screw rod, the first motor and the first threaded sleeve, the inclination angle of its mounting plate can be adjusted, so that the orientation of the PERC battery plate can be adjusted according to the direction and angle of light irradiation, making the conversion efficiency of solar energy higher. By setting the lifting mechanism, the mounting plate can rise and fall with the slider. Combined with the setting of the first motor, in extreme weather conditions, the PERC battery plate can be close to the table plate, reducing the influence of wind force on the overall structure of the PERC battery.

Description

Technical Field

[0001] The present invention relates to the technical field of PERC cells, and specifically to a PERC cell with high conversion efficiency. Background Art

[0002] PERC (Passivated Emitter and Rear Cell), that is, passivated emitter and rear cell technology, is currently becoming a new generation of conventional technology for solar cells. In recent years, the efficiency records of PERC have been continuously refreshed and it will become the most cost-effective technology in the next three years. The PERC technology improves the conversion efficiency by adding a dielectric passivation layer on the rear side of the cell. The better efficiency level in the standard cell structure is limited by the tendency of photo-generated electron recombination. The PERC cell maximizes the potential gradient across the P-N junction, which enables more stable electron flow, reduces electron recombination, and achieves a higher efficiency level.

[0003] Most of the PERC solar cells on the market are currently expensive. Once installed, it is not easy to change the direction and angle arbitrarily. Facing the different angles of sunlight irradiation for 24 hours a day and 12 months a year, the efficiency of solar energy conversion is generally low. When the light irradiation angle of the existing PERC solar panels changes, manual movement of the solar panels is required, and during the manual movement, the installation structure is likely to be damaged and dropped, resulting in economic losses. At the same time, since PERC solar cells are usually installed obliquely in order to receive more sunlight, in stormy weather, they are easily affected by wind and the connection to the ground becomes loose, posing a safety hazard. Therefore, a PERC cell with high conversion efficiency is proposed to solve the above problems. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a PERC cell with high conversion efficiency, which solves the problems of insufficient conversion efficiency and potential safety hazards in extreme weather mentioned in the above background art.

[0006] (2) Technical Solutions

[0007] In order to achieve the above object, the present invention specifically adopts the following technical solutions:

[0008] A PERC battery with high conversion efficiency comprises a bottom plate, a table plate is provided above the bottom plate, a turntable is fixed to the lower surface of the table plate by a straight rod, the turntable is connected to the bottom plate by a rotating mechanism, slide cylinders are symmetrically fixed to both ends of the upper surface of the table plate, a slider is slidably connected to the inner side of the slide cylinder, the two sliders are connected by a lifting mechanism, an L-shaped plate is fixed to the opposite ends of the two sliders, one end of the L-shaped plate passes through the slide cylinder and extends to the outside thereof, a screw rod 1 is rotatably connected between the two L-shaped plates, a motor 1 is fixed to one side wall of one of the L-shaped plates, and the driving end of the motor 1 is connected to the screw rod 1. One end is connected, a threaded sleeve 1 is threadedly connected to the screw 1, one end of the threaded sleeve 1 is fixed to a mounting plate, a PERC solar panel is fixed to the upper surface of the mounting plate, and a connecting plate is fixed to the four corners of its upper surface, and a screw 2 is rotatably connected between the two opposite connecting plates, and the two screw 2s are connected by a driving mechanism, and the two screw 2s are threadedly connected to the threaded sleeve 2, and the lower ends of the two threaded sleeves 2 are fixed with a U-shaped plate, and a brush cylinder is rotatably connected between the two side walls of the U-shaped plate, and a motor 2 is fixed to one side wall of the U-shaped plate, and the driving end of the motor 2 is connected to the rotating shaft of the brush cylinder.

[0009] Furthermore, the rotating mechanism includes a motor three fixed on the upper surface of the turntable, a rotating rod is rotatably connected to the middle position of the turntable, the lower end of the rotating rod passes through the turntable and extends to the bottom thereof and is fixed to the upper surface of the base plate, gears are fixed on the drive shaft and the rotating rod of the motor three, and the two gears are connected by a toothed belt transmission, and the rotating mechanism also includes an annular slide groove opened on the lower surface of the turntable, and arc-shaped slide plates slidably connected to the annular slide groove are symmetrically fixed on both sides of the upper surface of the base plate.

[0010] Furthermore, the lifting mechanism includes a screw rod rotatably connected to the inner top wall of the slide, the screw rod is threadedly connected to the slider, the lower end of the screw rod passes through the table plate and extends to the bottom thereof and is fixed with a transmission wheel 1, the two transmission wheels 1 are connected through a conveyor belt 1, and the lower end of one of the screw rods is connected to a motor 4 fixed to the lower surface of the table plate.

[0011] Furthermore, the driving mechanism includes a transmission wheel 2 fixed at one end of a screw rod 2, and the two transmission wheels 2 are connected by a transmission belt 2, and one of the screw rods 2 is connected to the driving end of a motor 5 fixed to a side wall of the connecting plate.

[0012] Furthermore, a sprinkler is fixed on the upper end of the upper surface of the mounting plate, and nozzles are equidistantly arranged at one end of the sprinkler facing the PERC solar panel. A water pump is fixed on the upper surface of the base plate, and the water delivery end of the water pump is connected to the sprinkler through hose 1, and the water suction end of the water pump is connected to hose 2.

[0013] Further, a temperature and humidity sensor is fixed on the upper surface of the bottom plate.

[0014] Further, an arc-shaped water baffle is fixed between two opposite connecting plates, and feet are provided on the lower surface of the bottom plate.

[0015] Further, pads are fixed at both ends of the upper surface of the table board.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a PERC battery with high conversion efficiency, having the following beneficial effects:

[0018] In the present invention, by providing a turntable and a rotating mechanism, the table board can rotate with the turntable. By providing a first screw rod, a first motor and a first threaded sleeve, the inclination angle of the mounting plate can be adjusted, so that the orientation of the PERC battery panel can be adjusted according to the direction and angle of light irradiation, making the conversion efficiency of solar energy higher. By providing a lifting mechanism, the mounting plate can lift with the slider. In combination with the setting of the first motor, the PERC battery panel can be close to the table board in extreme weather conditions, reducing the influence of wind force on the overall structure of the PERC battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front perspective structural schematic diagram of the present invention;

[0020] Figure 2 is a rear perspective structural schematic diagram of the present invention;

[0021] Figure 3 is a front structural schematic diagram of the present invention;

[0022] Figure 4 is a rear sectional structural schematic diagram of the present invention;

[0023] Figure 5 is a rear mounting plate structural schematic diagram of the present invention.

[0024] In the figure: 1, bottom plate; 2, table plate; 3, straight rod; 4, turntable; 5, rotating mechanism; 501, motor three; 502, rotating rod; 503, gear; 504, toothed belt; 505, annular sliding groove; 506, arc-shaped sliding plate; 6, sliding cylinder; 7, L-shaped plate; 8, lifting mechanism; 801, lead screw; 802, motor four; 803, drive pulley one; 804, conveyor belt one; 9, screw one; 10, motor one; 11, threaded sleeve one; 12, mounting plate; 13, PERC solar panel; 14, connecting plate; 15, screw two; 16, driving mechanism; 1601, drive pulley two; 1602, conveyor belt two; 1603, motor five; 17, threaded sleeve two; 18, U-shaped plate; 19, brush cylinder; 20, motor two; 21, water sprayer; 22, nozzle; 23, water pump; 24, hose one; 25, hose two; 26, temperature and humidity sensor; 27, arc-shaped water baffle; 28, cushion plate; 29, support foot; 30, slider. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment

[0027] Such as Figures 1-5As shown, a PERC battery with high conversion efficiency proposed in one embodiment of the present invention includes a base plate 1, a table plate 2 is provided above the base plate 1, a turntable 4 is fixed to the lower surface of the table plate 2 through a straight rod 3, the turntable 4 is connected to the base plate 1 through a rotating mechanism 5, slide cylinders 6 are symmetrically fixed to both ends of the upper surface of the table plate 2, a slider 30 is slidably connected to the inner side of the slide cylinder 6, and the two sliders 30 are connected by a lifting mechanism 8. An L-shaped plate 7 is fixed to the opposite end of the two sliders 30, one end of the L-shaped plate 7 passes through the slide cylinder 6 and extends to the outside thereof, and a screw 9 is rotatably connected between the two L-shaped plates 7, one of which is L A motor 10 is fixed to one side wall of the mold plate 7. The driving end of the motor 10 is connected to one end of a screw 9. A threaded sleeve 11 is threadedly connected to the screw 9. One end of the threaded sleeve 11 is fixed to a mounting plate 12. A PERC solar panel 13 is fixed to the upper surface of the mounting plate 12, and a connecting plate 14 is fixed to the four corners of the upper surface. A screw 2 15 is rotatably connected between the two opposite connecting plates 14. The two screws 2 15 are connected by a driving mechanism 16. A threaded sleeve 2 17 is threadedly connected to the two screws 2 15. The lower ends of the two threaded sleeves 2 17 are fixed with a U-shaped plate. 18, a brush cylinder 19 is rotatably connected between the two side walls of the U-shaped plate 18, and a motor 20 is fixed to one side wall of the U-shaped plate 18. The driving end of the motor 20 is connected to the rotating shaft of the brush cylinder 19. In summary, after the PERC cell is installed, the table 2 can be driven by the rotating mechanism 5 to rotate, and the mounting plate 12 can be driven by the motor 10 to drive the screw 9 threadedly connected to the threaded sleeve 11 to rotate. Therefore, the mounting plate 12 set on the table 2 can adjust the direction and tilt angle, so that the PERC solar panel 13 can always be perpendicular to the direction of sunlight. Therefore, the PERC The solar energy conversion efficiency of the battery is relatively high. When encountering extreme weather such as storms, the motor 10 is used to make the mounting plate 12 parallel to the table 2, and the lifting mechanism 8 is used to move the slider 30 downward so that the threaded sleeve 11 is in contact with the upper surface of the table 2, so that the mounting plate 12 is less affected by the wind and the connecting parts are not easily damaged. By setting the screw 2 15 and the driving mechanism 16, the brush barrel 19 can be driven to slide back and forth on the upper surface of the PERC battery panel 13, so that the surface of the PERC battery panel 13 can be cleaned to prevent dust from covering and affecting the solar energy conversion efficiency of the PERC battery panel 13.

[0028] like Figure 4As shown, in some embodiments, the rotating mechanism 5 includes a motor 3 501 fixed on the upper surface of the turntable 4, and a rotating rod 502 is rotatably connected to the middle position of the turntable 4. The lower end of the rotating rod 502 passes through the turntable 4 and extends to the bottom thereof and is fixed to the upper surface of the base plate 1. Gears 503 are fixed on the driving shaft of the motor 3 501 and the rotating rod 502, and the two gears 503 are connected by a toothed belt 504. The rotating mechanism 5 also includes an annular groove 505 opened on the lower surface of the turntable 4, and arc-shaped slides 506 symmetrically fixed on both sides of the upper surface of the base plate 1 for sliding connection with the annular groove 505. When the motor 3 501 is working, the rotating rod 502 is rotated by the gear 503 and the toothed belt 504. Since the lower end of the rotating rod 502 is fixed to the base plate 1, the turntable 4 will rotate under the drive of the motor 3 501, thereby being able to change the orientation of the mounting plate 12. Through the arrangement of the annular groove 505 and the arc-shaped slide 506, the turntable 4 is more stable when rotating.

[0029] like Figure 4 As shown, in some embodiments, the lifting mechanism 8 includes a screw rod 801 rotatably connected to the inner top wall of the slide 6, the screw rod 801 is threadedly connected to the slider 30, the lower end of the screw rod 801 passes through the table 2 and extends to the bottom thereof and is fixed with a transmission wheel 803, the two transmission wheels 803 are connected by a conveyor belt 804, the lower end of one of the screw rods 801 is connected to the motor 4 802 fixed on the lower surface of the table 2, when the motor 4 802 is working, the two screw rods 801 are driven by the transmission wheel 803 and the conveyor belt 804 to rotate synchronously, so that the slider 30 threadedly connected to it moves up and down in the slide 6, thereby being able to adjust the height of the mounting plate 12.

[0030] like Figure 5 As shown, in some embodiments, the driving mechanism 16 includes a transmission wheel 2 1601 fixed at one end of the screw rod 2 15, and the two transmission wheels 2 1601 are connected to each other through a conveyor belt 2 1602. One of the screw rods 2 15 is connected to the driving end of the motor 5 1603 fixed to the side wall of the connecting plate 14. Through the setting of the transmission wheel 2 1601 and the conveyor belt 2 1602, the motor 5 1603 can make the two screw rods 2 15 rotate synchronously. Therefore, the two threaded sleeves 2 17 can move synchronously under the restriction of the U-shaped plate 18.

[0031] like Figure 1 、 Figure 3 and Figure 5As shown, in some embodiments, a water sprayer 21 is fixed to the upper end of the upper surface of the mounting plate 12. Nozzles 22 are arranged at equal intervals at one end of the water sprayer 21 facing the PERC solar panel 13. A water pump 23 is fixed to the upper surface of the bottom plate 1. The water delivery end of the water pump 23 is connected to the water sprayer 21 through a first hose 24. The water suction end of the water pump 23 is connected to a second hose 25. By providing the water sprayer 21 and the nozzles 22, when the outside temperature is too high or the PERC solar panel 13 is too dirty to be cleaned by the brush cylinder 19, the surface of the PERC solar panel 13 can be cooled or cleaned by using flowing water.

[0032] As Figure 1 shown, in some embodiments, a temperature and humidity sensor 26 is fixed to the upper surface of the bottom plate 1. The model of the temperature and humidity sensor 26 mentioned here is LS-TH01, which can detect the temperature and humidity conditions of the nearby environment. The temperature and humidity sensor 26 transmits the signal of the temperature and humidity conditions to the external control device, so that the maintainer of the PERC battery can remotely understand the weather conditions of the PERC battery installation environment, which is convenient for protecting the PERC battery. By arranging the temperature and humidity sensor 26 on the bottom plate 1, direct sunlight can be avoided.

[0033] As Figure 1 shown, in some embodiments, an arc-shaped water baffle 27 is fixed between two opposite connecting plates 14. Legs 29 are provided on the lower surface of the bottom plate 1. By providing the arc-shaped water baffle 27, the probability of the surface of the second screw 15 being contaminated by rainwater and dust is reduced, so as to extend its service life.

[0034] As Figure 1 and Figure 3 shown, in some embodiments, pads 28 are fixed to both ends of the upper surface of the table board 2. By providing the pads 28, when the mounting plate 12 is placed at the lowest position, the two ends of its lower surface are respectively attached to the upper surfaces of the two pads 28, making the mounting plate 12 placed more stably.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A PERC battery with high conversion efficiency, comprising a bottom plate (1), characterized in that: A table (2) is provided above the bottom plate (1), a turntable (4) is fixed to the lower surface of the table plate (2) via a straight rod (3), the turntable (4) is connected to the bottom plate (1) via a rotating mechanism (5), slide cylinders (6) are symmetrically fixed at both ends of the upper surface of the table plate (2), a slider (30) is slidably connected to the inner side of the slide cylinder (6), and the two sliders (30) are connected by a lifting mechanism (8), and an L-shaped plate (7) is fixed to the opposite ends of the two sliders (30), one end of the L-shaped plate (7) passes through the slide cylinder (6) and extends to the outside thereof, a screw rod (9) is rotatably connected between the two L-shaped plates (7), a motor (10) is fixed to one side wall of one of the L-shaped plates (7), the driving end of the motor (10) is connected to one end of the screw rod (9), and the screw rod (9) is connected to the driving end of the motor (10). A threaded sleeve (11) is connected to the upper thread, and a mounting plate (12) is fixed to one end of the threaded sleeve (11). A PERC solar panel (13) is fixed to the upper surface of the mounting plate (12), and a connecting plate (14) is fixed to the four corners of the upper surface. A screw rod (15) is rotatably connected between the two opposite connecting plates (14). The two screw rods (15) are connected to each other by a driving mechanism (16). A threaded sleeve (17) is threadedly connected to the two screw rods (15). A U-shaped plate (18) is fixed to the lower ends of the two threaded sleeves (17). A brush cylinder (19) is rotatably connected between the two side walls of the U-shaped plate (18). A motor (20) is fixed to one side wall of the U-shaped plate (18). The driving end of the motor (20) is connected to the rotating shaft of the brush cylinder (19).

2. The PERC battery with high conversion efficiency according to claim 1, characterized in that: The rotating mechanism (5) includes a motor three (501) fixed on the upper surface of the turntable (4), a rotating rod (502) is rotatably connected to the middle position of the turntable (4), the lower end of the rotating rod (502) passes through the turntable (4) and extends below it and is fixed to the upper surface of the base plate (1), a gear (503) is fixed on the driving shaft of the motor three (501) and the rotating rod (502), and the two gears (503) are connected to each other through a toothed belt (504), and the rotating mechanism (5) also includes an annular slide groove (505) provided on the lower surface of the turntable (4), and arc-shaped slide plates (506) slidably connected to the annular slide groove (505) are symmetrically fixed on both sides of the upper surface of the base plate (1).

3. A PERC battery with high conversion efficiency according to claim 1, characterized in that: The lifting mechanism (8) includes a screw rod (801) rotatably connected to the inner top wall of the slide (6), the screw rod (801) is threadedly connected to the slider (30), the lower end of the screw rod (801) passes through the table (2) and extends to the bottom thereof and is fixed with a transmission wheel (803), the two transmission wheels (803) are connected to each other through a conveyor belt (804), and the lower end of one of the screw rods (801) is connected to a motor (802) fixed to the lower surface of the table (2).

4. A PERC battery with high conversion efficiency according to claim 1, characterized in that: The driving mechanism (16) includes a second transmission wheel (1601) fixed to one end of the second screw rod (15). The two second transmission wheels (1601) are drivingly connected by a second conveyor belt (1602). One of the second screw rods (15) is connected to the driving end of a fifth motor (1603) fixed to one side wall of the connecting plate (14).

5. A PERC battery with high conversion efficiency according to claim 1, characterized in that: A water sprayer (21) is fixed to the upper end of the upper surface of the mounting plate (12). Nozzles (22) are equidistantly arranged at one end of the water sprayer (21) facing the PERC solar panel (13). A water pump (23) is fixed to the upper surface of the bottom plate (1). The water delivery end of the water pump (23) is communicated with the water sprayer (21) through a first hose (24). The water suction end of the water pump (23) is connected with a second hose (25).

6. A PERC battery with high conversion efficiency according to claim 1, characterized in that: A temperature and humidity sensor (26) is fixed to the upper surface of the bottom plate (1).

7. A PERC battery with high conversion efficiency according to claim 1, characterized in that: An arc-shaped water baffle (27) is fixed between two opposite connecting plates (14). Support feet (29) are provided on the lower surface of the bottom plate (1).

8. A PERC battery with high conversion efficiency according to claim 1, characterized in that: Padding plates (28) are fixed to both ends of the upper surface of the table board (2).

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