CN216851887U

CN216851887U - Photovoltaic panel with adjustable light transmittance

Info

Publication number: CN216851887U
Application number: CN202123179170.5U
Authority: CN
Inventors: 党康; 肖玉兰
Original assignee: Shanghai Licao Technology Co ltd
Current assignee: Shanghai Licao Technology Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-06-28
Anticipated expiration: 2031-12-17

Abstract

An adjustable light transmittance photovoltaic panel comprising: photovoltaic board frame, from top to bottom set gradually in its inside flexible photovoltaic mechanism and optical scattering device, this flexible photovoltaic mechanism that stretches out and draws back includes: move pulley mechanism, driving motor and flexible photovoltaic piece, wherein: the movable pulley mechanism is respectively connected with the driving motor and one end of the flexible photovoltaic sheet, and the other end of the flexible photovoltaic sheet is connected with the driving motor. The device can adjust the light intensity of the photovoltaic panel on the top surface or the side surface of the building transmitted into the building as required, and can solve the problem of uneven light transmission caused by the mode that the traditional photovoltaic panel covers the light transmission.

Description

Photovoltaic panel with adjustable light transmittance

Technical Field

The utility model relates to a photovoltaic agricultural field's technique specifically is a luminousness adjustable photovoltaic board.

Background

The light transmittance of the photovoltaic panel on the top or the side of the existing building cannot be adjusted, for example, the photovoltaic panel on the top of an agricultural greenhouse can only select a photovoltaic module coverage rate suitable for most plants according to experience to achieve a fixed light transmittance, but the demand difference of different plants on light energy is huge, so that the variety of plants which can be cultivated in the photovoltaic greenhouse with the fixed light transmittance is greatly limited. In addition, after the traditional photovoltaic module is covered, the light transmission in the greenhouse is extremely uneven, the part shielded by the photovoltaic module only has a small amount of scattered light, the uncovered part is directly irradiated by sunlight, the light intensity difference is huge, and the simultaneous cultivation of the same crop is not facilitated. The same problem exists in the lighting surface of a building with a photovoltaic panel covered on the top or a side window, indoor illumination cannot be adjusted, and the difference between the light intensity of the shading part and the light transmission part is large.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to current photovoltaic board can not adjust the luminousness, under the photovoltaic board shading and the various problems that the light intensity difference of printing opacity part leads to greatly, a luminousness adjustable photovoltaic board has been proposed, scatter permeable light through lens, can make under the photovoltaic board originally shadow part also receive the sunshine irradiation, not only can adjust the condition that the light intensity reaches the demand in building top or the side as required, can eliminate the inhomogeneous problem of printing opacity that traditional photovoltaic board covers the non-light tight mode and causes simultaneously.

The utility model discloses a realize through following technical scheme:

the utility model discloses a: the photovoltaic panel framework, from top to bottom set gradually in its inside flexible photovoltaic mechanism and optical scattering device.

Flexible photovoltaic mechanism include: move pulley mechanism, driving motor and flexible photovoltaic piece, wherein: the movable pulley mechanism is respectively connected with the driving motor and one end of the flexible photovoltaic sheet, and the other end of the flexible photovoltaic sheet is connected with the driving motor.

The movable pulley mechanism comprises: pulley and guide rail, the activity that sets up in the photovoltaic board frame set up the traction head on the guide rail fixedly, wherein: the pulley and the traction head are connected through a traction wire, one end of the traction wire is fixedly arranged in the photovoltaic panel frame through a buffer spring, and the traction head is reset through the buffer spring when the driving motor emits the flexible photovoltaic sheet.

Drawings

Fig. 1-3 are the structure diagrams of the 0% opening, the partial opening and the 100% opening of the utility model in sequence;

FIG. 4 is a schematic view illustrating a light transmittance condition of a conventional photovoltaic greenhouse;

FIG. 5 is a schematic diagram of an embodiment;

in the figure: the photovoltaic panel frame 1, the controller 2, transparent spool 3, driving motor 4, flexible photovoltaic piece 5, ring grain concave lens 6, guide rail 7, pulley 8, pull wire 9, buffer spring 10, flexible photovoltaic piece pull head 11, tensile gag lever post 12, shrink gag lever post 13, printing opacity protection shield 14, sunshine 15.

Detailed Description

As shown in fig. 1, 2, and 3, the present embodiment includes: the photovoltaic panel framework 1, from top to bottom set gradually in its inside flexible photovoltaic mechanism and optical scattering device.

Flexible photovoltaic mechanism include: move pulley mechanism, driving motor and flexible photovoltaic piece, wherein: the movable pulley mechanism is respectively connected with the driving motor and one end of the flexible photovoltaic sheet, the other end of the flexible photovoltaic sheet is connected with the driving motor 4, and the flexible photovoltaic sheet is rewound or discharged through the driving motor.

The movable pulley mechanism comprises: pulley 8 and guide rail 7, the activity that sets up in photovoltaic board frame 1 set up traction head 11 on guide rail 7, wherein: the pulley 8 and the traction head 11 are connected through a traction wire 9, one end of the traction wire 9 is fixedly arranged in the photovoltaic panel frame 1 through a buffer spring 10, and the traction head 11 is reset through the buffer spring 10 when the driving motor emits the flexible photovoltaic sheet.

The driving motor 4 is connected with the controller 2 and is used for controlling forward and reverse rotation.

The driving motor 4 is provided with a transparent reel 3 for accommodating the flexible photovoltaic sheet 5, so that partial surface of the flexible photovoltaic sheet is ensured to be generated by sunlight transmitted through the transparent reel shell after being accommodated.

The guide rail 7 is provided with a stretching limiting rod 12 for preventing the flexible photovoltaic sheet from being damaged due to excessive stretching and a contraction limiting rod 13 for ensuring that the flexible photovoltaic sheet still has little allowance for receiving illumination after being withdrawn.

The photovoltaic panel frame 1 is provided with a light-transmitting protective plate 14 for preventing natural disasters such as rain, snow, hail and the like.

The optical scattering device is an annular concave lens 6 for scattering light, and the annular concave lens 6 is used for manufacturing an annular curved surface on the surface of the lens through annular cutting, so that the volume and the weight of the lens can be reduced as much as possible.

The winding shaft of the traction wire 9 on the shaft of the driving motor 4 has the same diameter as the winding shaft of the flexible photovoltaic sheet 5 on the shaft of the driving motor 4, but the winding direction is opposite.

The device works in the following way: the photovoltaic panel frame 1 is arranged at a fixed position on the top surface or the top of the side surface of a building, and a control line is required to be connected in a synchronous manner if wired control is carried out. After the installation is proper, the photovoltaic panel receives light energy and converts the light energy into electric energy under the sunlight, the controller 2 is started to carry out self-checking, after the controller receives a wired or wireless instruction, the opening degree of the photovoltaic panel needing to be regulated and controlled in the instruction is firstly analyzed, an opening degree signal is converted into driving data of the driving motor 4, the pull wire 9 is pulled back, the flexible photovoltaic sheet 5 is unfolded along the guide rail 7, or the flexible photovoltaic sheet 5 is pulled back to the transparent reel 3, and the opening degree set by the instruction is achieved.

As shown in fig. 1, a control instruction requires the system to be fully closed, the photovoltaic panel is fully paved to perform full-power generation, the controller 2 receives the instruction and then stretches the traction wire 9 to enable the flexible photovoltaic panel 5 to be completely unfolded along the guide rail 7, when the traction limiting rod 12 is pulled, the motor stops moving to complete the setting, and sunlight 15 penetrates through the light-transmitting protective plate 14 to irradiate the flexible photovoltaic panel 5 to start full-power generation.

As shown in fig. 2, the control command requires a system opening of 50%, and the controller 2 receives the command and then determines the operating state of the driving motor 4 and the current system opening. Judging that the opening degree of the system is larger than 50%, driving the driving motor 4 to stretch the traction wire 9 to enable the flexible photovoltaic sheet 5 to be unfolded to 50% of opening degree along the guide rail 7, otherwise driving the driving motor 4 to pull the flexible photovoltaic sheet 5 to the transparent scroll 3 to enable the opening degree of the system to reach 50%, enabling the sunlight 15 to penetrate through the light-transmitting protection plate 14 to irradiate the flexible photovoltaic sheet 5 which is 50% unfolded to achieve 50% power generation, and enabling the rest 50% of sunlight 15 to penetrate through the annular concave lens 6 and then to be scattered below the photovoltaic plate to be directly used by plants in the greenhouse.

As shown in fig. 3, the control instruction requires 100% of the system aperture, and the controller 2 receives the instruction and then drives the driving motor 4 to pull the flexible photovoltaic sheet 5 to the transparent reel 3, so that the system aperture reaches 100%, but due to the existence of the shrinkage limiting rod 13 on the guide rail 7, a small part of the flexible photovoltaic sheet can always receive illumination, and the battery built in the controller 2 is continuously charged, thereby ensuring that the controller 2 and the driving motor 4 can operate in a power-off state. The rest sunlight 15 passes through the light-transmitting protective plate 14 and then passes through the annular concave lens 6, and then is scattered below the photovoltaic plate for direct utilization by plants in the greenhouse.

As shown in fig. 4, the light transmittance of the existing photovoltaic greenhouse is shown, and as can be seen, the projected light cannot be scattered, and is bright or dark; in contrast, the greenhouse uniformly illuminated by the light transmitted by the embodiment after scattering is shown in fig. 5, in which the opening is adjusted to 50%. The actual can be adjusted between 0 percent and 100 percent at will according to the requirements. Factory buildings and other buildings.

The foregoing embodiments may be modified in various ways by those skilled in the art without departing from the spirit and scope of the present invention, which is not limited by the above embodiments but is to be accorded the full scope defined by the appended claims, and all such modifications and variations are within the scope of the invention.

Claims

1. A photovoltaic panel with adjustable light transmittance, comprising: the photovoltaic panel framework, the flexible telescopic photovoltaic mechanism and the optical scattering device are sequentially arranged in the photovoltaic panel framework from top to bottom;

2. The photovoltaic panel with adjustable light transmittance according to claim 1, wherein the movable pulley mechanism comprises: pulley and guide rail, the activity that sets up in the photovoltaic board frame set up the traction head on the guide rail fixedly, wherein: the pulley and the traction head are connected through a traction wire, one end of the traction wire is fixedly arranged in the photovoltaic panel frame through a buffer spring, and the traction head is reset through the buffer spring when the driving motor emits the flexible photovoltaic sheet.

3. The photovoltaic panel with adjustable light transmittance as claimed in claim 1, wherein the driving motor is connected with a controller for controlling forward and reverse rotation.

4. The photovoltaic panel with adjustable light transmittance as claimed in claim 1 or 3, wherein the driving motor is provided with a transparent reel for accommodating the flexible photovoltaic sheet.

5. The photovoltaic panel with adjustable light transmittance as claimed in claim 2, wherein the guide rail is provided with a stretching limiting rod and a shrinking limiting rod.

6. The photovoltaic panel with adjustable light transmittance as claimed in claim 1, wherein the photovoltaic panel frame is provided with a light-transmitting protective plate.

7. The photovoltaic panel with adjustable light transmittance as claimed in claim 1, wherein the optical scattering device is an annular concave lens.

8. The adjustable photovoltaic panel as set forth in claim 2, wherein the winding axis of the pulling wire on the shaft of the driving motor has the same diameter and opposite winding direction as the winding axis of the flexible photovoltaic sheet on the shaft of the driving motor.