CN114928328A

CN114928328A - Photovoltaic power generation board reflex reflector

Info

Publication number: CN114928328A
Application number: CN202210614779.0A
Authority: CN
Inventors: 汪道德
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-08-19

Abstract

The invention provides a photovoltaic power generation panel reflecting device which comprises a support, wherein the support comprises a bottom plate, stand columns, a cross beam, a supporting plate and a driving mechanism, side frames are arranged on two sides of the support, a bottom frame is arranged at the bottom of the support, limiting blocks II are fixed on the stand columns on two sides of the support, reflecting films are adhered to the inner sides of the side frames and the bottom frame, adjusting rotating shafts are fixed at the bottoms of the side frames, racks are fixed on the bottom surface of the bottom frame, the driving mechanism comprises a motor and a transmission shaft which are arranged on the bottom plate, a first transmission gear is fixed on an output shaft on the motor, two limiting blocks I are arranged on the bottom plate, a second transmission gear which synchronously rotates is fixed on the transmission shaft, transmission bevel gears are fixed at two ends of the transmission shaft, an adjusting bevel gear is fixed at one end of the adjusting rotating shaft, and the racks are abutted against the upper end of the second transmission gear and driven to move by the second transmission gear. The solar photovoltaic power generation panel disclosed by the invention effectively improves the utilization rate of solar energy of the photovoltaic power generation panel in unit area, and is convenient to install, safe to use, energy-saving and environment-friendly.

Description

Photovoltaic power generation board reflex reflector

Technical Field

The invention belongs to the technical field of photovoltaic power generation, and relates to a reflecting device of a photovoltaic power generation panel.

Background

Photovoltaic power generation is a technology of directly converting light energy into electric energy by using the photovoltaic effect of a semiconductor interface. The solar energy power generation system mainly comprises a solar panel (assembly), a controller and an inverter, and the main components of the system are electronic components. The solar cells are connected in series and then are packaged and protected to form a large-area solar cell module, and then the photovoltaic power generation device is formed by matching with components such as a power controller and the like.

In more than ten years in future, the market of Chinese photovoltaic power generation will be shifted from an independent power generation system to a grid-connected power generation system, including a desert power station and an urban roof power generation system. The solar photovoltaic power generation station in China has huge potential and is supported by matching with a positive and stable policy, the installed photovoltaic capacity reaches 1 billion kilowatt in 2030 years, the annual generated energy can reach 1.3 billion kilowatts, and more than 30 large coal power plants are equivalently built. In order to strive for carbon peak reaching 2030 years ago and realize carbon neutralization 2060 years ago, photovoltaic power generation is a very important part of the technology.

At present, more and more rural newly-built and reconstructed house roofs, urban roofs, balconies and the like are erected and installed with photovoltaic power generation devices, but almost all photovoltaic power generation devices on the market can receive and convert solar energy only when facing towards the sun, and the back is totally wasted. Under the condition of not considering the performance of the photovoltaic power generation device, the photovoltaic power generation device has low utilization rate and conversion rate of solar energy for the photovoltaic power generation device with the same unit area.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a reflecting device of a photovoltaic power generation panel, which utilizes a reflecting film to reflect sunlight to the bottom surface of the photovoltaic power generation panel, effectively improves the utilization rate of the photovoltaic power generation panel per unit area on sunlight energy, and improves the photoelectric conversion rate of the photovoltaic power generation panel per unit area.

The purpose of the invention can be realized by the following technical scheme: a photovoltaic power generation panel reflecting device comprises a support, wherein the support comprises a bottom plate, stand columns, a cross beam, a supporting plate and a driving mechanism, the bottom plate is fixed on the stand columns, the cross beam is connected between the two stand columns, side frames are arranged on two sides of the support, a bottom frame is arranged at the bottom of the support, a limiting block II is fixed on the stand columns on two sides of the support, reflecting films are adhered to the inner sides of the side frames and the bottom frame, an adjusting rotating shaft is fixed at the bottom of the side frames, the adjusting rotating shaft penetrates through the limiting block II in a rotating mode, a rack is fixed on the bottom surface of the bottom frame, the bottom frame is arranged on the supporting plate at the left end and the right end of the inner side of the support and slides along the supporting plate, the driving mechanism comprises a motor and a transmission shaft which are arranged on the bottom plate, a first transmission gear is fixed on an output shaft on the motor, two limiting blocks I are arranged on the bottom plate, the transmission shaft penetrates through the limiting blocks in a rotating mode, a second transmission gear which synchronously rotates is fixed on the transmission shaft, the first transmission gear is meshed with the second transmission gear, the two ends of the transmission shaft are fixedly provided with transmission bevel gears, one end of the adjusting rotating shaft is fixedly provided with an adjusting bevel gear, the transmission bevel gear is meshed with the adjusting bevel gear, and the rack abuts against the upper end of the second transmission gear and is driven by the second transmission gear to move.

Preferably, the reflective film comprises a PVC film and an aluminum foil, and the PVC film and the aluminum foil are fixedly bonded. The PVC film has low price, good chemical stability and no degradation under the action of light and heat; the aluminum foil has good light reflecting performance and low cost.

Preferably, the thickness of the PVC film is 0.1-0.3mm, and the thickness of the aluminum foil is 0.01-0.02 mm. The material is light more be convenient for installation and later maintenance change.

Preferably, the inclination angle of the support plate is 3-15 °. The sunlight of the reflection of inclination undersize of backup pad is too dispersed, and the sunlight of the too big reflection of inclination degree is too concentrated, all can influence the efficiency of photovoltaic power generation board light energy conversion electric energy.

Preferably, the side frames have a trapezoidal shape, and the bottom frame has a square shape. The side frame is designed to be in a trapezoidal shape and is attached to the side face of the photovoltaic power generation panel support, so that the attractiveness is improved, and meanwhile, materials and space can be effectively saved; the frame is designed to be square and corresponds to the photovoltaic power generation panel, so that the back surface of the frame is completely covered with the photovoltaic power generation panel, and the reflection intensity of sunlight is increased.

When the light-emitting device is transported and does not need to increase the reflection area or in cloudy days, the bottom frame and the side frames can be retracted into the support, and the occupied space is reduced.

When the solar photovoltaic panel is folded, the solar photovoltaic panel is arranged at the upper end of the support, and the two sides and the bottom of the support are also shielded by the bottom frame and the side frames, so that components such as a motor and a transmission gear can be well protected, and the components are prevented from being corroded by wind and rain.

Compared with the prior art, the invention has the following advantages:

1. the utilization rate of the photovoltaic power generation panel in unit area to solar energy is improved, the photoelectric conversion rate of the photovoltaic power generation panel in unit area is improved, and the photovoltaic power generation panel is energy-saving and environment-friendly.

2. The installation is convenient, the use is safe, the shape is simple, and the appearance is beautiful and elegant;

3. the determination shows that the reflectivity of the black roof ground to the sunlight is 3-4%, the reflectivity of the white roof ground to the sunlight is 6-8%, and the reflectivity of the invention to the sunlight is 10-13%, thus the reflectivity of the sunlight can be effectively improved.

Drawings

Fig. 1 is an isometric view of the overall structure of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a bottom view of the present invention.

Fig. 4 is a front view of the present invention.

Fig. 5 is a rear view of the present invention.

Fig. 6 is a schematic view of the structure of the reflective film of the present invention.

Fig. 7 is a side elevational view of the invention.

Fig. 8 is a schematic view of the driving mechanism of the present invention.

In the figure, 1, a bracket; 11. a base plate; 111. a first limiting block; 12. a column; 121. a second limiting block; 13. a cross beam; 14. a support plate; 15. a drive mechanism; 151. a motor; 1511. a first drive gear; 152. a drive shaft; 1521. a second transmission gear; 1522. a transmission bevel gear; 2. a side frame; 21. a light-reflecting film; 211. a PVC film; 212. aluminum foil; 22. Adjusting the rotating shaft; 23. an adjusting bevel gear; 3. a bottom frame; 31. a rack.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3, 4, 5, 7, and 8, the photovoltaic panel reflector includes a support 1, the support 1 includes a bottom plate 11, a vertical column 12, a cross beam 13, a support plate 14, and a driving mechanism 15, the bottom plate 11 is fixed on the vertical column 12, the cross beam 13 is connected between the two vertical columns 12, two sides of the support 1 are provided with side frames 2, the bottom of the support 1 is provided with a bottom frame 3, the vertical columns 12 on two sides of the support 1 are fixed with a limiting block two 121, the inner sides of the side frames 2 and the bottom frame 3 are both adhered with a reflective film 21, the bottom of the side frames 2 is fixed with an adjusting rotating shaft 22, the adjusting rotating shaft 22 is rotatably penetrated through the limiting block two 121, the bottom surface of the bottom frame 3 is fixed with a rack 31, the bottom frame 3 is erected on the support plates 14 at the left and right ends of the inner side of the support 1 and slides along the support plates 14, the driving mechanism 15 includes a motor 151 and a transmission shaft 152 which are arranged on the bottom plate 11, a first transmission gear 1511 is fixed on an output shaft of the motor 151, two first limit blocks 111 are arranged on the bottom plate 11, the transmission shaft 152 is rotatably arranged on the first limit blocks 111 in a penetrating mode, a second transmission gear 1521 which synchronously rotates is fixed on the transmission shaft 152, the first transmission gear 1511 is meshed with the second transmission gear 1521, transmission bevel gears 1522 are fixed at two ends of the transmission shaft 152, an adjusting bevel gear 23 is fixed at one end of the adjusting rotating shaft 22, the transmission bevel gear 1522 is meshed with the adjusting bevel gear 23, and the rack 31 is attached to the upper end of the second transmission gear 1521 and is driven to move by the second transmission gear 1521.

As shown in fig. 6, the reflective film 21 includes a PVC film 211 and an aluminum foil 212, the PVC film 211 and the aluminum foil 212 are fixedly bonded, the PVC film 211 has a thickness of 0.1-0.3mm, and the aluminum foil 212 has a thickness of 0.01-0.02 mm.

As shown in fig. 7, the inclination angle of the support plate 14 is 3-15 °.

As shown in fig. 1, the side frame 2 has a trapezoidal shape, and the bottom frame 3 has a square shape.

The working principle of the invention is as follows: the motor 151 is started first, the motor 151 drives the first transmission gear 1511 to rotate, the first transmission gear 1511 drives the second transmission gear 1521 and the transmission shaft 152 to rotate, the transmission shaft 152 drives the transmission bevel gears 1522 at two ends to rotate, the transmission bevel gears 1522 drive the adjusting bevel gears 23, the adjusting rotating shaft 22 and the side frames 2 to rotate, meanwhile, the second transmission gear 1521 drives the rack 31 and the bottom frame 3 to climb along the supporting plate 14, and after the side frames 2 and the bottom frame 3 rotate at the most suitable sunlight reflection angle, the motor 151 is turned off.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A photovoltaic power generation board reflecting device is characterized by comprising a support, wherein the support comprises a bottom plate, stand columns, a cross beam, a supporting plate and a driving mechanism, the bottom plate is fixed on the stand columns, the cross beam is connected between the two stand columns, side frame bodies are arranged on two sides of the support, a bottom frame is arranged at the bottom of the support, a limiting block II is fixed on the stand columns on two sides of the support, reflecting films are pasted on the inner sides of the side frame and the bottom frame, an adjusting rotating shaft is fixed at the bottom of the side frame and penetrates through the limiting block II in a rotating mode, a rack is fixed on the bottom surface of the bottom frame, the bottom frame is arranged on the supporting plate at the left end and the right end of the inner side of the support and slides along the supporting plate, the driving mechanism comprises a motor and a driving shaft which are arranged on the bottom plate, a first transmission gear is fixed on an output shaft on the motor, two limiting blocks I are arranged on the bottom plate, and the driving shaft penetrates through the limiting block I in a rotating mode, a second transmission gear which synchronously rotates is fixed on the transmission shaft, the first transmission gear is meshed with the second transmission gear, transmission bevel gears are fixed at two ends of the transmission shaft, an adjusting bevel gear is fixed at one end of the adjusting rotating shaft and is meshed with the adjusting bevel gear, and the rack abuts against the upper end of the second transmission gear and is driven by the second transmission gear to move.

2. A photovoltaic panel reflector according to claim 1 wherein said reflective membrane comprises PVC film and aluminum foil, said PVC film and aluminum foil being adhesively secured.

3. A photovoltaic power generation panel reflector according to claim 2 wherein said PVC film is 0.1-0.3mm thick and said aluminum foil is 0.01-0.02mm thick.

4. A photovoltaic panel reflector according to claim 1 wherein the angle of inclination of said support panel is from 3 ° to 15 °.

5. A photovoltaic panel reflector according to claim 1 wherein said side frames are trapezoidal in shape and said bottom frame is square in shape.