CN211507655U

CN211507655U - Solar cell with multistage grid line

Info

Publication number: CN211507655U
Application number: CN202020526481.0U
Authority: CN
Inventors: 杨世豪; 顾夏斌; 赖玮晟
Original assignee: Suzhou Aojing Photovoltaic Technology Co ltd
Current assignee: Suzhou Aojing Photovoltaic Technology Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-09-15
Anticipated expiration: 2030-04-13

Abstract

The utility model discloses a solar wafer with multistage grid line belongs to solar cell technical field, including the aluminum alloy frame, the inside fixed mounting of aluminum alloy frame has a plurality of monolithic battery pieces, be provided with many transmission lines on the monolithic battery piece, the horizontal fixedly connected with multistage grid line on the transmission line surface, aluminum alloy frame upper end fixed mounting has the silica nano-plate, silica nano-plate upper end fixed mounting has washes silk textile fabric board, wash silk textile fabric board upper end laminating and install the carbon fiber gusset plate. The utility model relates to a novelty, the operation of being convenient for and excellent in use effect can collect the produced slight electric current of battery piece effectively, have improved solar cell panel's work efficiency to toughness and the ultraviolet resistance oxidability that have improved solar cell piece prevent to cause solar cell piece bending, break, damage and solar cell sheet matter oxidation breakage, prolonged solar cell piece life.

Description

Solar cell with multistage grid line

Technical Field

The utility model relates to a solar cell technical field especially relates to a solar wafer with multistage grid line.

Background

The solar cell is divided into a crystalline silicon type and an amorphous silicon type, wherein the crystalline silicon type cell can be divided into a single crystal cell and a polycrystalline cell; single crystal silicon differs more efficiently than crystalline silicon. At present, a solar panel is a device which directly or indirectly converts solar radiation energy into electric energy through a photoelectric effect or a photochemical effect by absorbing sunlight, but the grid line on the front side of the existing battery has certain defects for collecting fine current due to the fact that the electrode coverage density is small, and the current collecting capacity cannot be better improved.

Patent No. CN109713054A discloses a novel solar wafer, need use the probe to contact the main bars when solving the wafer test that exists among the prior art, and the positive electrode among the prior art all is at the edge, causes the wafer to break limit and piece during the test very easily. The invention relates to a novel solar cell, which comprises: the front electrode comprises a front main grid I, a front main grid II and a front fine grid which are connected with each other, and the back electrode comprises a back main grid; the front electrode and the back electrode are of asymmetric design. The front electrodes are all designed on the inner side of the cell, so that the design on the edge of the cell is avoided, edge breakage and fragments can be avoided during testing of the cell, the testing is easy, and the solar cell is suitable for the novel solar cell of the laminated assembly.

The above patents have the following disadvantages: 1. the tiny current generated by the cell can not be effectively collected, and the working efficiency of the solar cell panel is reduced; 2. the solar cell has poor toughness, and is easy to bend, crack and damage; 3. the solar cell has poor ultraviolet oxidation resistance, and ultraviolet rays have super oxidation to the solar cell under the irradiation of long-time external sunlight, so that the solar cell is easy to oxidize and break, and the service life of the solar cell is shortened. Therefore, a solar cell with multi-stage grid lines is provided.

Disclosure of Invention

The utility model provides a solar cell with multistage grid lines, which has novel design, convenient operation and good use effect, and aims to effectively collect the fine current generated by the cell through a transmission line and the multistage grid lines and improve the working efficiency of the solar cell panel; the carbon fiber reinforcing plate can improve the toughness of the solar cell and prevent the solar cell from being bent, cracked and damaged; the polyester-spun fabric plate can improve the ultraviolet oxidation resistance of the solar cell, prevent the solar cell from being oxidized and broken, and prolong the service life of the solar cell.

The utility model provides a specific technical scheme as follows:

the utility model provides a solar cell with multistage grid line, including the aluminum alloy frame, the inside fixed mounting of aluminum alloy frame has a plurality of monolithic battery pieces, monolithic battery piece inside upper end covers bonding PVDF, PVDF upper end covers installation optical glass, monolithic battery piece inside lower extreme bonding EVA, monolithic battery piece is last to be provided with many transmission lines, horizontal fixed connection has multistage grid line on the transmission line surface, the transmission line is connected to the wiring end of fixed mounting on the aluminum alloy frame left end lateral wall, be provided with a plurality of terminals on the wiring end left end lateral wall, aluminum alloy frame upper end fixed mounting has the silica nano-plate, silica nano-plate upper end fixed mounting has washing silk spinning cloth plate, washing silk spinning cloth plate comprises fluorocarbon paint coating and washing silk spinning cloth layer, the fluorocarbon paint coating is coated and stuck on the upper end of the polyester-spun cloth layer, a carbon fiber reinforcing plate is mounted on the upper end of the polyester-spun cloth plate in a laminating manner and consists of epoxy resin and carbon fibers, the epoxy resin is coated and stuck on two sides of the carbon fibers in a covering manner, and EVA is fixedly stuck on the upper end of the carbon fiber reinforcing plate.

The utility model has the advantages as follows:

1. the utility model relates to a novelty, be convenient for operation and excellent in use effect, through being equipped with transmission line and multistage grid line, can effectively increase the density of coverage of grid line through multistage grid line, can effectually collect slight electric current, the transmission efficiency of the multiplicable slight electric current of transmission line that sets up, avoid the power loss that causes in the transmission course, the connection of circuit that the wiring end can be convenient for, aluminum alloy frame and bottom plate can further increase the structural stability of whole device, so, can collect the produced slight electric current of battery piece effectively, solar cell panel's work efficiency has been improved. 2. The utility model discloses a be equipped with the carbon fiber gusset plate, the carbon fiber gusset plate is wrapped up the cover by epoxy and is scribbled to glue and constitute, and epoxy has very strong thermosetting and corrosion resistance. The carbon fiber is high-strength high-modulus fiber with carbon content of more than 90 percent, is high-temperature resistant at the head of all chemical fibers, is prepared by taking acrylic fiber and viscose fiber as raw materials and carrying out high-temperature oxidation carbonization. Carbon fibers with extremely high tensile strength are presoaked by epoxy resin to form a composite reinforced material (unidirectional continuous fibers); the carbon fiber reinforced plate is manufactured and used for being adhesively mounted on the solar cell to reinforce the solar cell, so that the toughness of the solar cell can be improved, and the solar cell is prevented from being bent, cracked and damaged.

The utility model discloses a be equipped with and wash silk textile fabric board, wash silk textile fabric board and be formed with fluorocarbon paint coating spraying on washing silk textile fabric layer, fluorocarbon paint coating refers to the coating that uses fluororesin as main film forming material, also known as fluorocarbon paint, fluorine coating, fluororesin coating etc. has weatherability, heat resistance, low temperature resistance, chemical resistance nature, has unique inadhesion and low frictional property moreover, absorption ultraviolet ray that can be very strong. The polyester fiber spinning cloth layer is made of silk spun by polyester fiber. The flat fabric is light, thin and stiff in texture, good in crease resistance after shaping, high in fabric strength, easy to wash and quick to dry, and the weight of the flat fabric is 69-749/m 2. The fabric can be used as base cloth of various coating products, is particularly finished by a waterproof coating, has excellent waterproofness and good strength, is a main textile fabric for manufacturing raincoats and poncho, and can be waterproof and also used for protecting ultraviolet rays. The polyester-spun cloth plate is adhered and installed on the solar cell piece, when the solar cell piece is irradiated by sunlight, the fluorocarbon paint coating can absorb ultraviolet rays strongly, and the polyester-spun cloth layer can also absorb residual ultraviolet rays and has a waterproof effect, so that the solar cell piece can resist the oxidation of the ultraviolet rays, the ultraviolet oxidation resistance of the solar cell piece can be improved, the solar cell piece is prevented from being oxidized and broken, and the service life of the solar cell piece is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a solar cell with multiple stages of grid lines according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of components of a solar cell having multiple stages of gate lines according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a polyester-spun fabric plate of a solar cell having multi-stage grid lines according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a carbon fiber reinforced plate structure of a solar cell with multi-stage grid lines according to an embodiment of the present invention.

In the figure: 1. a binding post; 2. a terminal; 3. a transmission line; 4. an aluminum alloy frame; 5. a plurality of stages of gate lines; 6. a single cell; 7. a silica nanoplate; 8. polyester spinning cloth plate; 9. a carbon fiber reinforcing plate; EVA; PVDF; 12. an optical glass; 13. a fluorocarbon paint coating; 14. a polyester spun fabric layer; 15. an epoxy resin; 16. carbon fibers.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The solar cell with multi-stage grid lines according to the embodiments of the present invention will be described in detail with reference to fig. 1 to 4.

Referring to fig. 1 to 4, a solar cell with multilevel grid lines provided in an embodiment of the present invention includes an aluminum alloy frame 4, a plurality of monolithic cells 6 are fixedly mounted inside the aluminum alloy frame 4, PVDF 11 is bonded to the upper end inside the monolithic cells 6, optical glass 12 is mounted to the upper end of the PVDF 11, EVA 10 is bonded to the lower end inside the monolithic cells 6, a plurality of transmission lines 3 are disposed on the monolithic cells 6, the surface of the transmission lines 3 is transversely and fixedly connected with a multilevel grid line 5, the transmission lines 3 are connected to a wiring terminal 2 fixedly mounted on the outer side wall of the left end of the aluminum alloy frame 4, a plurality of terminals 1 are disposed on the outer side wall of the left end of the wiring terminal 2, a silica nano plate 7 is fixedly mounted on the upper end of the aluminum alloy frame 4, a polyester-spun fabric plate 8 is fixedly mounted on the upper end of the silica nano plate 7, wash silk textile fabric board 8 and constitute by fluorocarbon paint coating 13 and wash silk textile fabric layer 14, fluorocarbon paint coating 13 covers to scribble and glues at washing silk textile fabric layer 14 upper end, wash silk textile fabric board 8 upper end laminating and install carbon fiber reinforcing plate 9, carbon fiber reinforcing plate 9 comprises epoxy 15 and carbon fiber 16, epoxy 15 parcel covers to scribble and glues in carbon fiber 16 both sides, carbon fiber reinforcing plate 9 upper end fixed bonding EVA 10.

The embodiment of the utility model provides a solar wafer with multistage grid line, during the use, through being equipped with transmission line 3 and multistage grid line 5, can effectively increase the coverage density of grid line through multistage grid line 5, can effectively collect slight electric current, transmission line 3 that sets up can increase the transmission efficiency of slight electric current, avoid the power loss that causes in the transmission course, wiring end 2 can be convenient for the connection of circuit, aluminum alloy frame 4 and bottom plate can further increase the structural stability of whole device, so, can collect the slight electric current that the battery piece produced effectively, the work efficiency of solar cell panel has been improved; by arranging the carbon fiber reinforcing plate 9, the carbon fiber reinforcing plate 9 is formed by coating, covering and gluing the carbon fibers 16 by the epoxy resin 15, and the epoxy resin 15 has strong thermosetting property and corrosion resistance. The carbon fiber 16 is a high-strength high-modulus fiber with the carbon content of more than 90 percent, is a high-temperature resistant fiber which accounts for the head of all chemical fibers, is prepared by taking acrylic fibers and viscose as raw materials and carrying out high-temperature oxidation and carbonization. Carbon fibers 16 with extremely high tensile strength are pre-impregnated with epoxy resin 15 to form a composite reinforcing material (unidirectional continuous fibers); the epoxy resin 15 adhesive is adhered to a structure to be reinforced along the tensile direction or the direction vertical to the crack direction to form a new complex, and the carbon fiber reinforcing plate 9 is manufactured and is used for being adhered and installed on the solar cell to reinforce the solar cell, so that the toughness of the solar cell can be improved, and the solar cell is prevented from being bent, cracked and damaged; the polyester-silk fabric plate 8 is provided, the polyester-silk fabric plate 8 is formed by spraying a fluorocarbon paint coating 13 on a polyester-silk fabric layer 14, the fluorocarbon paint coating 13 is a paint taking fluororesin as a main film forming substance, and is also called fluorocarbon paint, fluorine paint, fluororesin paint and the like, and the coating has weather resistance, heat resistance, low temperature resistance, chemical medicine resistance, unique non-adhesiveness and low friction, and can absorb ultraviolet rays strongly. The polyester fiber layer 14 is a spun silk made of polyester fiber. The flat fabric is light, thin and stiff in texture, good in crease resistance after shaping, high in fabric strength, easy to wash and quick to dry, and the weight of the flat fabric is 69-749/m 2. The fabric can be used as base cloth of various coating products, is particularly finished by a waterproof coating, has excellent waterproofness and good strength, is a main textile fabric for manufacturing raincoats and poncho, and can be waterproof and also used for protecting ultraviolet rays. The polyester-spun fabric plate 8 is adhered and installed on the solar cell, when the solar cell is irradiated by sunlight, the fluorocarbon paint coating 13 can absorb ultraviolet rays strongly, and the polyester-spun fabric layer 14 can also absorb residual ultraviolet rays and has a waterproof effect, so that the solar cell resists the oxidation of the ultraviolet rays, the ultraviolet oxidation resistance of the solar cell can be improved, the solar cell is prevented from being oxidized and broken, and the service life of the solar cell is prolonged.

It should be noted that the utility model relates to a solar cell with multi-stage grid lines, which comprises a binding post 1, a wiring terminal 2, a transmission line 3, an aluminum alloy frame 4, a multi-stage grid line 5, a single cell 6, a silica nano-plate 7, a polyester-spun fabric plate 8, a carbon fiber reinforced plate 9, EVA 10, PVDF 11, optical glass 12, a fluorocarbon paint coating 13, a polyester-spun fabric layer 14, epoxy resin 15 and carbon fibers 16, the components are all products in the prior art, the debugging operation of the components is selected, installed and completed by the technical personnel in the field according to the use requirement to ensure that all the components can work normally, the components are all general standard components or components known by the technical personnel in the field, the structure and principle are known to the skilled person through technical manuals or through routine experimentation, and the applicant is not specifically limited herein.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a solar wafer with multistage grid line which characterized in that: the solar photovoltaic cell comprises an aluminum alloy frame (4), wherein a plurality of single cell pieces (6) are fixedly arranged inside the aluminum alloy frame (4), PVDF (11) is covered and bonded at the upper end inside the single cell pieces (6), optical glass (12) is covered and mounted at the upper end of the PVDF (11), EVA (ethylene-vinyl acetate copolymer) is bonded at the lower end inside the single cell pieces (6), a plurality of transmission lines (3) are arranged on the single cell pieces (6), a multi-stage grid line (5) is transversely and fixedly connected onto the surface of each transmission line (3), the transmission lines (3) are connected onto a wiring terminal (2) fixedly mounted on the outer side wall of the left end of the aluminum alloy frame (4), a plurality of wiring terminals (1) are arranged on the outer side wall of the left end of the wiring terminal (2), a silicon dioxide nano plate (7) is fixedly mounted at the upper end of the aluminum alloy frame (4), a, wash silk textile fabric board (8) and constitute by fluorocarbon paint coating (13) and wash silk textile fabric layer (14), fluorocarbon paint coating (13) cover to scribble and is being washed silk textile fabric layer (14) upper end, wash silk textile fabric board (8) upper end laminating and install carbon fiber gusset plate (9), carbon fiber gusset plate (9) comprise epoxy (15) and carbon fiber (16), epoxy (15) parcel cover is scribbled and is being glued in carbon fiber (16) both sides, carbon fiber gusset plate (9) upper end fixed bonding EVA (10).