CN210668400U

CN210668400U - Photovoltaic power generation device used under weak radiation condition

Info

Publication number: CN210668400U
Application number: CN201922402054.1U
Authority: CN
Inventors: 韩璐; 施磊
Original assignee: BEIJING STATE GRID POWER TECHN
Current assignee: BEIJING STATE GRID POWER TECHNOLOGY Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-06-02
Anticipated expiration: 2029-12-27

Abstract

The utility model belongs to the photovoltaic board field, especially be a photovoltaic power generation device for under weak radiation condition, including the photovoltaic power generation board, the photovoltaic power generation board includes the frame and fixes the electricity generation subassembly in the frame inside, the electricity generation subassembly includes lens board, solar chip and the TPT notacoria that distributes from top to bottom in proper order, it has the encapsulation glue to fill between solar chip and lens board, the TPT notacoria, the surface of lens board is equipped with a plurality of protruding convex lens and the sunken convex lens of evenly distributed; through the lens on the lens board, can gather sunshine, get up light energy in the light and heat energy gathering, improve the energy that light arrived on the solar chip, consequently can improve the efficiency that solar chip received solar energy under the low radiation condition, and unevenness's lens board surface, gather heat energy more easily, reduce the heat and be blown away by the condition of wind, be favorable to thermal gathering, by the efficiency improvement of the thermoelectric conversion of solar chip.

Description

Photovoltaic power generation device used under weak radiation condition

Technical Field

The utility model relates to a photovoltaic board field specifically is a photovoltaic power generation device for under the weak radiation condition.

Background

The solar cell is a photoelectric semiconductor slice which directly generates electricity by utilizing sunlight, a single solar cell can not be directly used as a power supply, a plurality of single solar cells are required to be connected in series and in parallel and tightly packaged into a module as the power supply, and a plurality of solar cells of the solar panel are assembled into an assembly part, which is a core part in a solar power generation system and is also the most important part in the solar power generation system.

The solar panel mainly converts light-heat energy absorbing solar rays into electric energy, but the electric energy generated by the solar panel is greatly influenced by the solar radiation intensity, the surface of the existing solar panel is basically a smooth plane, and the absorption and conversion efficiency of the solar panel is greatly reduced under the condition of low solar radiation intensity. Accordingly, one skilled in the art provides a photovoltaic power generation device for weak radiation conditions to solve the problems set forth in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a photovoltaic power generation device for under the weak radiation condition to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a photovoltaic power generation device used under the weak radiation condition comprises a photovoltaic power generation panel, wherein the photovoltaic power generation panel comprises a frame and a power generation assembly fixed inside the frame, the power generation assembly comprises a lens plate, a solar chip and a TPT (thermoplastic vulcanizate) back film which are sequentially distributed from top to bottom, packaging glue is filled between the solar chip and the lens plate as well as between the solar chip and the TPT back film, a plurality of convex lenses and concave lenses which are uniformly distributed are arranged on the surface of the lens plate, the convex lenses and the concave lenses are distributed at intervals, a regular hexagonal connecting part is arranged between the convex lenses and the concave lenses, the convex lenses and the concave lenses are fixedly connected through the connecting part, the distance between the convex lenses and the solar chip is larger than the distance between the concave lenses and the solar chip, and a heat collection groove is arranged at the top of the concave lenses, the top of electricity generation subassembly is equipped with cleans the subassembly, frame one side fixedly connected with lead screw slip table actuating mechanism, lead screw slip table actuating mechanism's output rotates and is connected with and cleans the brush roll, the spout has been seted up at the top of frame, clean the brush roll slide in the spout, lead screw slip table actuating mechanism and external power source electric connection.

As a further aspect of the present invention: the output end of the screw rod sliding table driving mechanism is in transmission connection with two sliding tables, the number of the sliding grooves is two, the sliding grooves are symmetrically distributed at two ends of the top of the frame, the sliding tables slide in one of the sliding grooves, and the sliding tables slide on the other sliding groove.

As a further aspect of the present invention: two ends of the cleaning brush roll are respectively and rotatably connected with the two sliding tables.

As a further aspect of the present invention: and a driving motor is arranged on one side of the cleaning brush roll and fixedly arranged on one of the sliding tables, and the output end of the driving motor is fixedly connected with the cleaning brush roll.

As a further aspect of the present invention: the seal membrane is installed to the inboard of spout, the seal membrane with frame fixed connection.

As a further aspect of the present invention: the refractive index of the convex lens is smaller than that of the concave convex lens.

As a further aspect of the present invention: the length of the bristles of the cleaning brush roll is larger than the depth of the heat collecting groove.

Compared with the prior art, the beneficial effects of the utility model are that:

through the lens on the lens board, can gather sunshine, get up light energy in the light and heat energy gathering, improve the energy that light arrived on the solar chip, consequently can improve the efficiency that solar chip received solar energy under the low radiation condition, and unevenness's lens board surface, gather heat energy more easily, reduce the heat and be blown away by the condition of wind, be favorable to thermal gathering, by the efficiency improvement of the thermoelectric conversion of solar chip.

Drawings

FIG. 1 is a schematic diagram of a photovoltaic power plant for use under low radiation conditions;

FIG. 2 is a schematic perspective view of a power generation module for use in a photovoltaic power generation apparatus under weak radiation conditions;

FIG. 3 is an enlarged, partially cut-away, schematic view of a photovoltaic panel for use in a photovoltaic power plant under low radiation conditions;

fig. 4 is a schematic structural view of a lens plate used in a photovoltaic power generation device under weak radiation conditions.

In the figure: 100. a photovoltaic power generation panel; 1. a frame; 101. a chute; 11. a sealing film; 2. a power generation assembly; 21. a lens plate; 211. a convex lens; 212. a concave convex lens; 213. a heat collection tank; 214. a connecting portion; 22. a solar chip; 23. a TPT backing film; 24. packaging glue; 3. a sweeping assembly; 31. a cleaning brush roll; 32. a sliding table; 33. a drive motor; 34. lead screw slip table actuating mechanism.

Detailed Description

Referring to fig. 1 to 4, in an embodiment of the present invention, a photovoltaic power generation device for use under weak radiation conditions includes a photovoltaic power generation panel 100, the photovoltaic power generation panel 100 includes a frame 1 and a power generation component 2 fixed inside the frame 1, the power generation component 2 includes a lens plate 21, a solar chip 22 and a TPT back film 23 which are sequentially distributed from top to bottom, an encapsulation adhesive 24 is filled between the solar chip 22 and the lens plate 21, the TPT back film 23, a plurality of convex lenses 211 and concave convex lenses 212 are uniformly distributed on a surface of the lens plate 21, the convex lenses 211 and the concave convex lenses 212 are distributed at intervals, a regular hexagonal connection portion 214 is provided between the convex lenses 211 and the concave convex lenses 212, the convex lenses 211 and the concave convex lenses 212 are fixedly connected through the connection portion 214, an interval between the convex lenses 211 and the solar chips 22 is greater than an interval between the concave convex lenses 212 and the solar chips 22, the top of the concave convex lens 212 is provided with a heat collection groove 213, the top of the power generation assembly 2 is provided with a cleaning assembly 3, one side of the frame 1 is fixedly connected with a screw rod sliding table driving mechanism 34, the output end of the screw rod sliding table driving mechanism 34 is rotatably connected with a cleaning brush roll 31, the top of the frame 1 is provided with a sliding groove 101, the cleaning brush roll 31 slides in the sliding groove 101, and the screw rod sliding table driving mechanism 34 is electrically connected with an external power supply.

In fig. 1: the top of the power generation assembly 2 is provided with a cleaning assembly 3, one side of the frame 1 is fixedly connected with a screw rod sliding table driving mechanism 34, the output end of the screw rod sliding table driving mechanism 34 is rotatably connected with a cleaning brush roll 31, the top of the frame 1 is provided with sliding grooves 101, the cleaning brush roll 31 slides in the sliding grooves 101, the screw rod sliding table driving mechanism 34 is electrically connected with an external power supply, the output end of the screw rod sliding table driving mechanism 34 is in transmission connection with two sliding tables 32, the number of the sliding grooves 101 is two, the two sliding grooves 101 are symmetrically distributed at two ends of the top of the frame 1, the sliding tables 32 slide in one of the sliding grooves 101, the sliding tables 32 slide on the other sliding groove 101, two ends of the cleaning brush roll 31 are respectively and rotatably connected with the two sliding tables 32, one side of the cleaning brush roll 31 is provided with a, seal membrane 11 is installed to the inboard of spout 101, seal membrane 11 and frame 1 fixed connection, lens board 21 through setting up the surface and having protruding convex lens 211 and sunken convex lens 212, set up at lens board 21 top simultaneously and cleaned subassembly 3, clean brush roll 31 and rotate by the driving motor 33 (the model is 28-HBS) drive of one side, clean brush roll 31 both ends and rotate and connect slip table 32, slip table 32 is driven by lead screw slip table actuating mechanism 34, reciprocating motion in the length direction of lens board 21, clean brush roll 31 simultaneously and rotate, clean the dust on lens board 21 surface, avoid lens board 21 to lead to efficiency reduction because of the dust is crossed.

In fig. 2: the surface of the lens plate 21 is provided with a plurality of convex lenses 211 and concave convex lenses 212 which are uniformly distributed, the convex lenses 211 and the concave convex lenses 212 are distributed at intervals, a regular hexagonal connecting part 214 is arranged between the convex lenses 211 and the concave convex lenses 212, the convex lenses 211 and the concave convex lenses 212 are fixedly connected through the connecting part 214, the distance between the convex lenses 211 and the solar chip 22 is larger than the distance between the concave convex lenses 212 and the solar chip 22, the top of the concave convex lenses 212 is provided with a heat collecting groove 213, the power generation assembly 2 comprises the lens plate 21, the solar chip 22 and a TPT (thermoplastic vulcanizate) back film 23 which are sequentially distributed from top to bottom, an encapsulation adhesive 24 is filled between the solar chip 22 and the lens plate 21 and the TPT back film 23, sunlight can be collected through the lenses on the lens plate 21, light energy and heat energy in the light rays can be collected, and the energy of the light rays reaching the solar chip 22 is improved, therefore, the efficiency of the solar chip 22 for receiving solar energy under the condition of low radiation can be improved, the uneven surface of the lens plate 21 can gather heat energy more easily, the condition that the heat is blown away by wind is reduced, the heat gathering is facilitated, and the efficiency of thermoelectric conversion of the solar chip 22 is improved.

In fig. 3 and 4: the refractive index of the convex lens 211 is smaller than that of the concave lens 212, so that the focal point of the convex lens 211 and the focal point of the concave lens 212 are both arranged on the solar chip 22, heat is collected on the solar chip 22, the length of the bristles of the cleaning brush roller 31 is larger than the depth of the heat collecting groove 213, dust on the lens plate 21 and in the heat collecting groove 213 can be swept away, and sunlight shielding is avoided.

The utility model discloses a theory of operation is: by arranging the lens plate 21 with the convex lenses 211 and the concave convex lenses 212 on the surface, sunlight can be gathered through the lenses on the lens plate 21, light energy and heat energy in light are gathered, and the energy of the light reaching the solar chip 22 is improved, so that the efficiency of the solar chip 22 for receiving the solar energy under the condition of low radiation can be improved, the heat energy is more easily gathered on the surface of the lens plate 21 with unevenness, the condition that the heat is blown away by wind is reduced, the heat gathering is facilitated, the efficiency of thermoelectric conversion of the solar chip 22 is improved, meanwhile, the cleaning component 3 is arranged on the top of the lens plate 21, the cleaning brush roll 31 is driven to rotate by the driving motor 33 on one side, the driving motor 33 and the screw rod sliding table driving mechanism 34 are both connected with a controller, the driving motor 33 and the sliding table driving mechanism 34 are started intermittently at regular time by the controller, the screw rod 32 is driven by the sliding table driving mechanism 34, the cleaning brush roller 31 rotates while reciprocating in the longitudinal direction of the lens plate 21, so that dust on the surface of the lens plate 21 is cleaned, and the lens plate 21 is prevented from being reduced in efficiency due to excessive dust.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a photovoltaic power generation device for under weak radiation condition, includes photovoltaic power generation board (100), photovoltaic power generation board (100) includes frame (1) and fixes power generation subassembly (2) inside frame (1), its characterized in that, power generation subassembly (2) are including lens board (21), solar chip (22) and TPT notacoria (23) that from top to bottom distributes in proper order, it has encapsulation glue (24) to fill between solar chip (22) and lens board (21), TPT notacoria (23), the surface of lens board (21) is equipped with a plurality of evenly distributed's protruding convex lens (211) and sunken convex lens (212), protruding convex lens (211) and sunken convex lens (212) interval distribution, positive hexagon connecting portion (214) have between protruding convex lens (211) and sunken convex lens (212), protruding convex lens (211) and sunken convex lens (212) pass through connecting portion (214) fixed connection, interval between protruding convex lens (211) and solar chip (22) is greater than interval between sunken convex lens (212) and solar chip (22), the top of sunken convex lens (212) has heat collection groove (213), the top of electricity generation subassembly (2) is equipped with cleans subassembly (3), frame (1) one side fixedly connected with lead screw slip table actuating mechanism (34), the output of lead screw slip table actuating mechanism (34) rotates and is connected with and cleans brush roll (31), spout (101) have been seted up at the top of frame (1), clean brush roll (31) slide in spout (101), lead screw slip table actuating mechanism (34) and external power source electric connection.

2. The photovoltaic power generation device used under the weak radiation condition according to claim 1, wherein the output end of the screw rod sliding table driving mechanism (34) is connected with two sliding tables (32) in a transmission manner, the number of the sliding grooves (101) is two, the two sliding grooves (101) are symmetrically distributed at two ends of the top of the frame (1), the sliding tables (32) slide in one of the sliding grooves (101), and the sliding tables (32) slide on the other sliding groove (101).

3. The photovoltaic power generation device for weak radiation conditions according to claim 2, characterized in that the two ends of the sweeping brush roller (31) are respectively and rotatably connected with two sliding tables (32).

4. The photovoltaic power generation device for weak radiation conditions according to claim 3, characterized in that a driving motor (33) is arranged on one side of the cleaning brush roller (31), the driving motor (33) is fixedly arranged on one of the sliding tables (32), and the output end of the driving motor (33) is fixedly connected with the cleaning brush roller (31).

5. A photovoltaic generator for weak radiation conditions, according to claim 1, characterized by the fact that inside said chute (101) is fitted with a sealing membrane (11), said sealing membrane (11) being fixedly connected to said frame (1).

6. The photovoltaic power generation device for weak radiation conditions according to claim 1, characterized in that the refractive index of the convex lens (211) is smaller than the refractive index of the concave convex lens (212).

7. Photovoltaic power plant for weak radiation conditions, according to claim 1, characterized by the fact that the length of the bristles of the sweeping brush roller (31) is greater than the depth of the heat collection grooves (213).