阅读说明：本技术 一种太阳能电池 (Solar cell ) 是由 齐长红 邵国专 陆成荣 邵高瞻 汪斌 于 2019-07-03 设计创作，主要内容包括：本发明涉及光伏技术领域,公开了一种太阳能电池。包括上隔板、下隔板、外壁和电池组件,上隔板、下隔板和外壁共同围出封闭空腔,电池组件设于封闭空腔中,电池组件包括电池片和支架,支架侧壁上设有安装槽,电池片安装在安装槽中,若干电池组件垂直堆叠形成柱体；支架中间设有通槽,若干通槽在柱体中心堆叠出通道,电池片受光面朝向通道内部；柱体与上隔板和下隔板垂直。支架为六边形支架,六边形支架每一侧壁上皆设有安装槽,若干电池组件垂直堆叠出六棱柱,电池片受光面和六边形支架表面共同组成通道内壁。本发明能够充分利用光能产生电能,能源利用率高。能够避免电池破裂、进水和热斑等问题,使用寿命长。能够进行自清洁,清理过程方便。(The invention relates to the technical field of photovoltaics and discloses a solar cell. The battery pack comprises an upper partition plate, a lower partition plate, an outer wall and a battery assembly, wherein the upper partition plate, the lower partition plate and the outer wall jointly enclose a closed cavity, the battery assembly is arranged in the closed cavity, the battery assembly comprises a battery piece and a support, a mounting groove is formed in the side wall of the support, the battery piece is mounted in the mounting groove, and a plurality of battery assemblies are vertically stacked to form a cylinder; through grooves are formed in the middle of the support, a plurality of through grooves are stacked in the center of the column body to form a channel, and the light receiving surface of the battery piece faces the inside of the channel; the column body is vertical to the upper clapboard and the lower clapboard. The support is the hexagon support, all is equipped with the mounting groove on each lateral wall of hexagon support, and hexagonal prism is piled up perpendicularly to a plurality of battery packs, and the battery piece sensitive surface constitutes the passageway inner wall jointly with the hexagon support surface. The invention can fully utilize the light energy to generate the electric energy and has high energy utilization rate. Can avoid the problems of battery rupture, water inflow, hot spot and the like, and has long service life. Can carry out automatically cleaning, the cleaning process is convenient.)

1. The utility model provides a solar cell, includes baffle (1), lower baffle (2), outer wall (3) and battery pack (4), goes up baffle (1), lower baffle (2) and outer wall (3) and encloses out closed cavity jointly, and battery pack (4) are located in closed cavity, its characterized in that: the battery pack (4) comprises battery sheets (41) and a support (42), wherein the side wall of the support (42) is provided with a mounting groove (43), the battery sheets (41) are mounted in the mounting groove (43), and if the battery packs (4) are vertically stacked, a cylinder (5) is formed; a through groove (44) is formed in the middle of the support (42), a plurality of through grooves (44) are stacked to form a channel (51) in the center of the column body (5), and the light receiving surface of the battery piece (41) faces the inside of the channel (51); the column body (5) is vertical to the upper clapboard (1) and the lower clapboard (2).

2. A solar cell according to claim 1, characterized in that: the support (42) is a hexagonal support, each side wall of the hexagonal support is provided with a mounting groove (43), the battery pieces (41) are mounted in the mounting grooves (43), and if the dry battery modules (4) are vertically stacked into a hexagonal prism, the light receiving surfaces of the battery pieces (41) and the surface of the hexagonal support jointly form the inner wall of the channel (51).

3. A solar cell according to claim 2, characterized in that: a plurality of hexagonal prisms are mutually attached to form a honeycomb structure.

4. A solar cell according to claim 1, characterized in that: the battery pieces (41) in the same battery pack (4) are connected in series to form a battery string, the battery strings of the battery packs (4) with the same height are connected in series to form a large series group, and the large series groups of the battery packs (4) with different heights are connected in parallel.

5. A solar cell according to claim 1, characterized in that: the battery plates (41) in the same battery assembly (4) are connected in series to form a battery string, the battery strings of the battery assemblies (4) in the same cylinder (5) are connected in series to form a large series group, and the large series groups of the battery assemblies (4) in different cylinders (5) are connected in parallel.

6. A solar cell according to claim 1, characterized in that: the upper partition board (1) is provided with a plurality of convex lens panels (11) with cambered surfaces and a lighttight reflector panel (12), the convex lens panels (11) are fixedly connected with the reflector panel (12), the convex lens panels (11) are transparent and colorless, and the surfaces of the convex lens panels are covered with antireflection films.

7. A solar cell according to claim 1, characterized in that: the protective cover (6) is also arranged, and the protective cover (6) is arranged on the upper partition plate (1) and covers the whole upper partition plate (1); the protective cover (6) is in a pyramid shape, a frustum of a pyramid shape or a semicircle shape, and an anti-reflection film is coated on the outer surface of the protective cover (6).

8. A solar cell according to claim 1, characterized in that: the surface of the lower partition plate (2) is communicated with the channel (51), and the surface of the lower partition plate (2) is provided with a mirror surface; or the surface of the lower clapboard (2) is provided with a plurality of convex mirrors (21), and the positions of the convex mirrors (21) correspond to the positions of the channels (51).

9. A solar cell according to claim 1, characterized in that: the cell (41) comprises a front electrode layer, a photoelectric conversion layer and a rear electrode layer, wherein the front electrode layer is a transparent electrode layer, and the front electrode layer is a light receiving surface of the cell (41).

10. A solar cell according to claim 1, characterized in that: the outer wall (3) is provided with a supporting layer (31) and a heat insulation layer (32), the heat insulation layer (32) is wrapped on the supporting layer (31), the heat insulation layer (32) is a composite material layer of silicon rubber-hollow glass beads, and the surface of the heat insulation layer (32) is coated with a hydrophobic coating.

Technical Field

The invention relates to the technical field of photovoltaics, in particular to a design of a solar cell.

Background

Solar energy is inexhaustible clean energy, has the advantages of incomparable cleanness, safety, resource universality and sufficiency and the like compared with fossil energy such as coal, petroleum and the like, and is considered as the most important energy in the twenty-first century. Converting sunlight into electricity is an effective way to generate energy continuously for a long time. Since the solar cell is an attractive energy technology, a rapid development has been achieved in the last two decades. In 2014, the loading quantities of H markets in China, Japan and the United states are 10.5GW, 9GW and 6.5GW respectively. The accumulated loading capacity of China is reduced to 28.05GW, and the accumulated photovoltaic power generation reaches 250 hundred million kilowatt hours all the year round second in Germany and living in the world. The scale of the Chinese photovoltaic industry is continuously enlarged, the industry development is generally good, and the continuous 8-year photovoltaic cell and module yield is the first of the global photovoltaic cell and module yield.

In order to further improve the power generation efficiency, an invention patent with the publication number of CN109450361A discloses a light-gathering film photovoltaic power generation plate, which comprises a transparent cylindrical plate, a film solar cell panel and a substrate, wherein the transparent cylindrical plate, the film solar cell panel and the substrate are distributed from top to bottom; the transparent cylinder in the transparent cylinder plate is a cylinder or an oval cylinder with uniform medium, and the cross section of the transparent cylinder plate is circular or oval; a connecting plate is connected between two adjacent transparent cylinders, and the connecting plate is a panel with a transparent plane or a transparent curved surface; the transparent cylindrical plate is a plane or cambered convex lens plate, and two ends of the transparent cylindrical plate are fixed through a clamping groove and a buckle; the thin-film solar cell panel is of a continuously distributed wavy curved surface or an independent arc curved surface structure; the thin-film solar cell panel is connected with the controller, the inverter and the storage battery through power lines to perform photovoltaic power generation; the solar photovoltaic collector is not influenced by the change of the sunlight irradiation angle, can always have a stable light condensation effect, and is beneficial to high-efficiency photovoltaic power generation. Although the patent improves the power generation efficiency of the battery through the light condensation effect, the light irradiated on the surface of the panel is partially absorbed and then reflected, wherein part of the light enters the air through the convex lens panel. The energy of the light is not utilized, and the problem of energy waste exists.

Disclosure of Invention

The invention provides a solar cell aiming at the defect of low energy utilization rate in the prior art.

The invention solves the problem of low energy utilization rate, the design scheme utilizes the convex lens panel to increase the light collection rate, the light energy is absorbed by the cylinder stacked by the battery component, and the light is continuously absorbed and reflected on the inner wall of the channel after entering the cylinder channel, thereby utilizing the light energy as much as possible and reducing the energy waste.

In order to solve the technical problem, the invention is solved by the following technical scheme:

A solar cell comprises an upper partition plate, a lower partition plate, an outer wall and a cell module, wherein the upper partition plate, the lower partition plate and the outer wall jointly enclose a closed cavity, the cell module is arranged in the closed cavity, the cell module comprises a cell and a support, a mounting groove is formed in the side wall of the support, the cell is mounted in the mounting groove, and a plurality of cell modules are vertically stacked to form a cylinder; through grooves are formed in the middle of the support, a plurality of through grooves are stacked in the center of the column body to form a channel, and the light receiving surface of the battery piece faces the inside of the channel; the column body is vertical to the upper clapboard and the lower clapboard. According to the principle of the optical fiber, sunlight penetrates through the upper partition plate and enters the cylinder channel, and is continuously absorbed and reflected in the channel, so that the energy conversion efficiency is improved, and the energy utilization rate is high. In addition, the battery piece is not exposed outside, so that the generation of hot spots is effectively avoided, the problems of water inflow and breakage of the battery piece are also prevented, and the service life of the battery is prolonged. The user can adjust the quantity and the height of each cylinder according to site conditions and actual needs, and the degree of flexibility is high.

Preferably, the support is a hexagonal support, each side wall of the hexagonal support is provided with a mounting groove, the battery pieces are mounted in the mounting grooves, the plurality of battery assemblies are vertically stacked to form a hexagonal prism, and the light receiving surfaces of the battery pieces and the surface of the hexagonal support jointly form the inner wall of the channel.

Preferably, a plurality of hexagonal prisms are mutually attached to form a honeycomb structure. The honeycomb structure enables the prisms to be mutually supported and is less prone to lodging. Compare cylindrically, the hexagon can be inseparabler of iron box, reduces the space, and space utilization is higher. Compared with a triangle and a quadrangle, the hexagon is more circular, and the irradiation dead angle is less, so that the light can be more easily transmitted downwards.

Preferably, the battery pieces in the same battery module are connected in series to form a battery string, the battery strings of the battery modules at the same height are connected in series to form a large series group, and the large series groups of the battery modules at different heights are connected in parallel with each other. The connection is performed in units of layers.

Preferably, the battery sheets in the same battery assembly are connected in series to form a battery string, the battery strings of the battery assemblies in the same column are connected in series to form a large series group, and the large series groups of the battery assemblies in different columns are connected in parallel. The connection is made in units of a single body.

Preferably, the upper partition plate is provided with a plurality of convex lens panels with cambered surfaces and lightproof reflecting plates, the convex lens panels are fixedly connected with the reflecting plates, the convex lens panels are transparent and colorless, and the surfaces of the convex lens panels are covered with antireflection films. The convex lens is used for enhancing the capture of light rays, particularly the light rays with large incident angles, and the working efficiency of the battery is improved. The light-emitting plate is used for reflecting out light rays which do not enter, and heat accumulation is reduced.

Preferably, a protective cover is further arranged, and the protective cover is arranged on the upper partition plate and covers the whole upper partition plate; the protective cover is pyramid-shaped or truncated pyramid-shaped or semicircular, and an antireflection film is coated on the outer surface of the protective cover. The visor plays the effect similar to greenhouse's "closing light" on the one hand, and the visor inner wall can the reflection light, increases the incident light of battery, improves work efficiency. Another surface that conveniently has inclination can avoid ponding deposition, prevents that the battery from being sheltered from. Under the action of gravity, the protective cover can play a self-cleaning function in the rainy days, or a user can spray water to complete the cleaning process, so that the operation is convenient.

Preferably, the surface of the lower partition plate is communicated with the channel, and the surface of the lower partition plate is provided with a mirror surface; or the surface of the lower clapboard is provided with a plurality of convex mirrors, and the positions of the convex mirrors correspond to the positions of the channels. The mirror surface and the convex mirror are used for reflecting the light from the static mirror to the bottom back to the channel again, and reflecting and absorbing the light again, so that the energy utilization rate is improved.

Preferably, the cell comprises a front electrode layer, a photoelectric conversion layer and a rear electrode layer, wherein the front electrode layer is a transparent electrode layer, and the front electrode layer is a light receiving surface of the cell.

Preferably, the outer wall is provided with a supporting layer and a heat insulating layer, the heat insulating layer is wrapped on the supporting layer and is a composite material layer of silicon rubber-hollow glass beads, and the surface of the heat insulating layer is coated with a hydrophobic coating. The silicon rubber-hollow glass bead heat insulating material is one kind of environment friendly material with excellent performance. The heat-insulating material is applied to the outer surfaces of objects such as buildings and equipment, can effectively prevent heat from being conducted to the inside of the objects, and reduces the temperature of the inside of the objects.

Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: the light energy can be fully utilized to generate electric energy, and the energy utilization rate is high. The problems of battery rupture, water inflow, hot spot and the like can be avoided, and the service life is long. Can carry out automatically cleaning, the cleaning process is convenient.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 3 is a schematic structural view of a battery pack according to embodiment 2 of the present invention.

Fig. 4 is a circuit connection diagram according to embodiment 3 of the present invention.

Fig. 5 is a circuit connection diagram according to embodiment 4 of the present invention.

FIG. 6 is a schematic structural view of an upper separator in example 5 of the present invention.

FIG. 7 is a schematic view of the structure of a lower separator in example 6 of the present invention.

Fig. 8 is a first schematic structural diagram of embodiment 7 of the present invention.

Fig. 9 is a second schematic structural diagram of embodiment 7 of the present invention.

Fig. 10 is a schematic structural view of an outer wall in embodiment 7 of the present invention.

The names of the parts indicated by the numerical references in the above figures are as follows: the solar cell module comprises 1-an upper partition board, 11-a convex lens panel, 12-a reflector board, 2-a lower partition board, 21-a convex lens, 3-an outer wall, 31-a supporting layer, 32-a heat insulation layer, 4-a battery assembly, 41-a battery piece, 42-a support, 43-a mounting groove, 44-a through groove, 5-a column, 51-a channel and 6-a protective cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.