CN111129216B - Equipment for preparing double-sided passivation film of PERC battery and using method thereof - Google Patents
Equipment for preparing double-sided passivation film of PERC battery and using method thereof Download PDFInfo
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- CN111129216B CN111129216B CN201911303645.1A CN201911303645A CN111129216B CN 111129216 B CN111129216 B CN 111129216B CN 201911303645 A CN201911303645 A CN 201911303645A CN 111129216 B CN111129216 B CN 111129216B
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- 102100028961 Peroxisome proliferator-activated receptor gamma coactivator 1-beta Human genes 0.000 title claims 8
- 238000002360 preparation method Methods 0.000 claims abstract description 19
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/186—Particular post-treatment for the devices, e.g. annealing, impurity gettering, short-circuit elimination, recrystallisation
- H01L31/1868—Passivation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
- H01L31/02168—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells the coatings being antireflective or having enhancing optical properties for the solar cells
Abstract
The invention discloses equipment for preparing a double-sided passive film of a PERC (Positive electrode collector) battery and a using method thereof. The method comprises the steps of feeding and conveying, primary sheet inserting, preparation of a back laminated film, primary sheet unloading, secondary sheet inserting, front antireflection passivation film, secondary sheet unloading and feeding. The invention can complete the preparation of a back passivation film, a back covering layer and a front antireflection passivation film in the same equipment.
Description
Technical Field
The invention relates to the field of solar cell preparation, in particular to equipment for preparing a double-sided passivation film of a PERC cell and a using method thereof.
Background
The photovoltaic power generation system is a novel power generation system which directly converts solar radiation energy into electric energy by utilizing the photovoltaic effect of a solar cell semiconductor material. Solar cells, also called photovoltaic cells, are the most central devices in photovoltaic power generation systems. PERC (passivated Emitter and reader cell), the passivated Emitter and back cell technology, was first proposed in 1983 by Australian scientist Martin Green, and is currently becoming the conventional technology for a new generation of solar cells.
The preparation process of the PERC battery comprises the following steps: cleaning a silicon wafer, texturing, phosphorus diffusion, phosphorus removal of silicon glass, single-side polishing, back deposition of a passivation film (AlOx film), back deposition of a covering layer (one or a combination of more of SiONx, SiNx and SiOx films), front deposition of an antireflection passivation film (one or a combination of two of SiONx and SiNx films), back laser scribing of a contact region, back printing of an aluminum grid line, front printing of a silver grid line and high-temperature sintering. The influence of the back deposition passivation film, the back deposition covering layer and the front deposition antireflection passivation film on the electrical performance parameters, the internal defect rate test and the appearance yield of the battery is particularly important, and the three films are prepared in the current market in the following modes:
(1) an ALD (Atomic Layer Deposition) device deposits a back passivation film, a PECVD (Plasma Enhanced Chemical Vapor Deposition) device deposits a back covering Layer, and another PECVD device deposits a front antireflection passivation film;
(2) depositing a back passivation film and a back covering layer by using a plate-type PECVD (plasma enhanced chemical vapor deposition), and depositing a front antireflection passivation film by using a tubular PECVD device;
(3) and depositing a back passivation film by tubular PECVD, and depositing a front antireflection passivation film by tubular PECVD of another machine.
When the three modes are used for depositing the back passivation film, the back covering layer and the front antireflection passivation film, after one type of equipment is used for preparing one type of film, the film needs to be secondarily transferred to another type of equipment or another type of equipment to prepare a second film, a battery piece needs to pass through a transmission belt, a battery piece basket, a battery piece storage rack, a piece inserting and taking manipulator and the like for many times in the process of secondarily transferring the battery piece, certain scratch and pollution to the battery piece cannot be avoided, the electrical performance parameters, the internal defect rate, the fragment rate, the appearance yield and the like of the battery piece are influenced, and more working load of personnel or robots can be consumed when the battery piece is transferred among different equipment or different equipment and machines of the same type. The existing method for completing the preparation of the back passivation film, the back covering layer and the front antireflection passivation film usually needs two or three processes, and has the advantages of high equipment investment, large occupied area, high maintenance cost and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides equipment for preparing a double-sided passivation film of a PERC (Positive electrode resistance) battery, which can finish preparation of a back passivation film, a back covering layer and a front antireflection passivation film in the same equipment, wherein a sheet inserting and taking method can greatly reduce scratches and pollution caused by transfer of a battery sheet between different equipment or different machines of the same equipment, and a using method of the equipment.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an equipment for preparing two-sided passive film of PERC battery, includes first clean bench, second clean bench, first boiler tube, second boiler tube, first graphite boat, second graphite boat, inserts and gets piece manipulator, material loading transfer chain and unloading transfer chain, first boiler tube, first clean bench, first graphite boat and material loading transfer chain set gradually, second boiler tube, second clean bench, second graphite boat and unloading transfer chain set gradually, first clean bench, second clean bench position correspond, first graphite boat corresponds with second graphite boat position, insert and get in the region that piece manipulator is located first clean bench, second clean bench, first graphite boat and second graphite boat enclose, the material loading transfer chain is including the material loading basket of flowers, material loading transmission band and the material loading storage frame that set gradually, the material loading storage frame is adjacent with first boat graphite, the unloading is including material loading basket of flowers, material, Unloading transmission band and unloading storage frame, the unloading storage frame is adjacent with the second graphite boat, be equipped with first transfer storage frame between material loading storage frame and the unloading storage frame.
As a further improvement of the above technical solution:
a feeding buffer storage frame used for buffering the battery pieces is arranged between the feeding flower basket and the feeding storage frame, and a discharging buffer storage frame used for buffering the battery pieces is arranged between the discharging flower basket and the discharging storage frame.
Still be equipped with second transfer storage frame between material loading storage frame and the unloading storage frame, one side of material loading transfer chain is equipped with first sorting mechanism, first sorting mechanism is through selecting separately the transmission band and the butt joint of second transfer storage frame, first sorting mechanism includes that first colour selects separately module and first rejects module, first colour is selected separately the module and is used for discerning the battery piece that accords with colour definition requirement and the battery piece that does not accord with colour definition requirement, first rejects module is used for rejecting the battery piece of unqualified colour.
The sorting conveying belt is composed of a front section, a middle section and a rear section, the front section is parallel to the rear section, the conveying directions of the front section and the rear section are opposite, and the middle section is located between the front section and the rear section and used for connecting the front section and the rear section; and one end of the sorting conveying belt, which is close to the second transfer storage rack, is provided with a sorting buffer rack.
The first sorting mechanism is also provided with a first waste rejecting and collecting box.
One side of unloading transfer chain is equipped with second sorting mechanism, second sorting mechanism locates between unloading storage frame and the unloading basket of flowers, second sorting mechanism includes that the second colour is selected separately module and second rejects the module, the second colour is selected separately the module and is used for discerning the battery piece that accords with the colour definition requirement and the battery piece that does not accord with the colour definition requirement, the second rejects the module and is used for rejecting the battery piece that does not accord with the colour definition requirement.
The second sorting mechanism is also provided with a second waste rejecting and collecting box.
The use method of the equipment for preparing the double-sided passivation film of the PERC battery comprises the following steps:
s1, feeding and conveying: the battery pieces in the feeding flower basket are conveyed to a feeding storage rack through a feeding conveying belt;
s2, primary sheet insertion: the battery piece inserting and taking manipulator takes out the battery pieces in the feeding storage rack and inserts the battery pieces into the first graphite boat;
s3, preparation of back side laminate film: the first purification platform sends the first graphite boat into the first furnace tube to complete the preparation of the back laminated film, wherein the back laminated film comprises two film layer structures of a back passivation film and a back cover film;
s4, primary unloading: the battery piece inserting and taking manipulator is used for adsorbing and taking out the battery pieces in the first graphite boat and inserting the battery pieces into the first transfer storage rack;
s5, secondary inserting sheet: the battery piece inserting and taking manipulator takes out the battery pieces in the first transfer storage rack and inserts the battery pieces into the second graphite boat;
s6, front antireflection passivation film: the second purification platform sends the second graphite boat into a second furnace tube to complete the preparation of the front antireflection passivation film;
s7, secondary unloading: taking out the battery piece in the second graphite boat of the piece inserting and taking manipulator, and inserting the battery piece into the blanking storage rack;
s8, blanking and conveying: the battery piece is transported to the unloading basket of flowers through the unloading transmission band in the unloading storage frame.
After step S4, before step S5, the method further includes a first sorting, where the first sorting includes: the first color sorting module firstly identifies the battery pieces meeting the color definition requirement and the battery pieces not meeting the color definition requirement in the first transfer storage frame, the battery pieces not meeting the color definition requirement are removed to the first waste removing and collecting box through the first waste removing module, and the battery pieces meeting the color definition requirement are conveyed to the second transfer storage frame through the sorting conveying belt.
After step S7, before step S8, the method further includes a second sorting, wherein the second sorting comprises: the second color sorting module firstly identifies the battery pieces meeting the color definition requirement and the battery pieces not meeting the color definition requirement in the second transfer storage rack, the battery pieces not meeting the color definition requirement are removed to the second waste removing and collecting box through the second waste removing module, and the battery pieces meeting the color definition requirement are conveyed to the discharging basket through the discharging conveying belt.
Compared with the prior art, the invention has the advantages that:
the equipment for preparing the double-sided passive film of the PERC battery has reasonable arrangement of two lines, the inserting and taking mechanical arm can flexibly move among the feeding storage rack, the first graphite boat, the discharging storage rack and the second graphite boat, compared with the prior art that two or three pieces of equipment are needed to finish the preparation of the double-sided passive film of the PERC battery, three kinds of film preparation of a back passive film, a back covering layer and a front antireflection passive film can be finished in the same equipment, the inserting and taking method can greatly reduce scratch and pollution caused by the transfer of the battery piece among different equipment or different machine tables of the same equipment, effectively improve the electrical performance parameters, the appearance yield and the like of the battery piece, reduce the fragment rate and the internal defect rate of the battery piece, reduce the workload of personnel or robots, influence the electrical performance parameters, the internal defect rate, the fragment rate, the appearance yield and the like of the battery piece, reduce the equipment investment and the maintenance cost, reducing the floor area of the equipment, etc.
Drawings
Fig. 1 is a schematic structural view of an apparatus for preparing a double-sided passivation film of a PERC cell according to example 1 of the present invention.
Fig. 2 is a schematic structural view of an apparatus for preparing a double-sided passivation film of a PERC cell according to example 2 of the present invention.
Fig. 3 is a schematic structural view of an apparatus for preparing a double-sided passivation film of a PERC cell according to example 3 of the present invention.
The reference numerals in the figures denote:
1. feeding a flower basket; 2. a feeding conveying belt; 3. a sorting conveyor belt; 4. a feeding buffer rack; 5. a first reject collection box; 6. a first reject module; 7. a first color sorting module; 8. a feeding storage rack; 9. a first transfer storage rack; 10. a first graphite boat; 11. a first clean bench; 12. a first furnace tube; 13. an air source cabinet; 14. a second furnace tube; 15. a second clean bench; 16. a slice inserting and taking manipulator; 17. a second graphite boat; 18. a second transfer storage rack; 19. a blanking storage rack; 20. a second color sorting module; 21. a second reject module; 22. a second reject collection box; 23. a sorting buffer frame; 24. a blanking cache frame; 26. a blanking conveying belt; 27. and (5) blanking the flower basket.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples of the specification.
Example 1
As shown in fig. 1, the apparatus for preparing a double-sided passivation film of a PERC battery according to this embodiment includes a first clean bench 11, a second clean bench 15, a first furnace tube 12, a second furnace tube 14, a first graphite boat 10, a second graphite boat 17, a sheet inserting manipulator 16, a feeding conveyor line and a discharging conveyor line, where the first furnace tube 12, the first clean bench 11, the first graphite boat 10 and the feeding conveyor line are sequentially disposed, the second furnace tube 14, the second clean bench 15, the second graphite boat 17 and the discharging conveyor line are sequentially disposed, the first clean bench 11 and the second clean bench 15 are corresponding in position, preferably parallel, and the first graphite boat 10 and the second graphite boat 17 are corresponding in position, preferably parallel, and the sheet inserting manipulator 16 is located in an area surrounded by the first clean bench 11, the second clean bench 15, the first graphite boat 10 and the second graphite boat 17, and the feeding conveyor line includes a feeding flower basket 1, and a feeding conveyor line that are sequentially disposed, Material loading transmission band 2 and material loading storage rack 8, material loading transmission band 2 carries material loading basket of flowers 1's battery piece to material loading storage rack 8 on, material loading storage rack 8 is adjacent with first graphite boat 10, inserts and gets a slice manipulator 16 and can put into first graphite boat 10 after adsorbing the battery piece in material loading storage rack 8, and first graphite boat 10 is pushed into to first boiler tube 12 by first clean bench 11 (first clean bench 11 has and pushes away a boat mechanism), carries out the back membrane manufacturing.
The blanking conveying line comprises a blanking flower basket 27, a blanking conveying belt 26 and a blanking storage rack 19 in sequence, the blanking conveying belt 26 conveys the battery pieces on the blanking storage rack 19 into the blanking flower basket 27, the blanking storage rack 19 is adjacent to the second graphite boat 17, and the piece inserting and taking manipulator 16 can adsorb the battery pieces of the second graphite boat 17 and then place the battery pieces into the blanking storage rack 19;
be equipped with first transfer storage rack 9 between material loading storage rack 8 and the unloading storage rack 19, treat that the battery piece on the first graphite boat 10 is after the membrane of back in first boiler tube 12, insert and get a slice manipulator 16 and can put into first transfer storage rack 9 with the battery piece is accomplished in the membrane of back, later rethread inserts and gets a slice manipulator 16 and accomplish the battery piece with the membrane of back and put into second graphite boat 17, second graphite boat 17 is pushed to second boiler tube 14 by second clean bench 15 (second clean bench 15 has and pushes away a boat mechanism) and is carried out the positive membrane. After the front film making is completed, the second graphite boat 17 is withdrawn from the second furnace tube 14, and the sheet inserting and taking manipulator 16 adsorbs the battery sheets of the second graphite boat 17, then the battery sheets are placed into the discharging storage rack 19, and finally the battery sheets are sent into the discharging basket 27.
This an equipment for preparing two-sided passive film of PERC battery, two line arrangement are reasonable, insert and get a piece manipulator 16 and can move about in a flexible way between material loading storage rack 8, first graphite boat 10, unloading storage rack 19 and second graphite boat 17. Compared with the prior art that two or three devices are needed to complete the preparation of the double-sided passivation film of the PERC battery, the preparation of the back passivation film, the back covering layer and the front antireflection passivation film can be completed in the same device; the method for inserting and taking the battery piece can greatly reduce scratches and pollution caused by transfer of the battery piece between different equipment or different machines of the same type of equipment, effectively improve electrical performance parameters, appearance yield and the like of the battery piece, reduce the fragment rate and the internal defect rate of the battery piece, reduce the workload of personnel or robots, influence the electrical performance parameters, the internal defect rate, the fragment rate, the appearance yield and the like of the battery piece, reduce equipment investment and maintenance cost, reduce equipment floor area and the like.
In this embodiment, a feeding buffer rack 4 for buffering the battery pieces is arranged between the feeding basket 1 and the feeding storage rack 8, when the feeding storage rack 8 is full, the battery pieces can be temporarily stored in the feeding buffer rack 4, a discharging buffer rack 24 for buffering the battery pieces is arranged between the discharging basket 27 and the discharging storage rack 19, and when the discharging basket 27 is full, the battery pieces can be temporarily stored in the discharging buffer rack 24. Each stores the structure of frame, each buffer memory frame the same, all is the shelf that has multilayer draw-in groove from last to having down, drives lead screw drive mechanism through the motor and drives the shelf and reciprocate, realizes that the draw-in groove reciprocates to take away the battery piece on the transmission band.
In this embodiment, still be equipped with second transfer storage rack 18 between material loading storage rack 8 and the unloading storage rack 19, one side of material loading transfer chain is equipped with first sorting mechanism, first sorting mechanism docks with second transfer storage rack 18 through selecting separately transmission band 3, first sorting mechanism includes first colour and selects separately module 7 and first inspection rejects module 6, first colour is selected separately module 7 and is used for discerning the battery piece that accords with colour definition requirement and the battery piece that does not accord with colour definition requirement, first inspection rejects module 6 is used for rejecting the battery piece of unqualified colour, and collect with first inspection rejects collection box 5.
The sorting conveying belt 3 consists of a front section, a middle section and a rear section, the front section is parallel to the rear section, the conveying directions of the front section and the rear section are opposite, and the middle section is positioned between the front section and the rear section and is used for connecting the front section and the rear section; and a sorting buffer frame 23 is arranged at one end of the sorting conveying belt 3 close to the second transfer storage frame 18. When the second transfer storage rack 18 is full, the battery pieces may be temporarily stored in the sorting buffer rack 23.
In this embodiment, one side of unloading transfer chain is equipped with second sorting mechanism, and second sorting mechanism locates between unloading storage rack 19 and unloading basket of flowers 27, and second sorting mechanism includes that second colour selects separately module 20 and second inspection rejects module 21, and second colour selects separately module 20 and is used for discerning the battery piece that accords with the colour definition requirement and the battery piece that does not accord with the colour definition requirement, and second inspection rejects module 21 is used for rejecting the battery piece that does not accord with the colour definition requirement to collect with second inspection rejects collection box 22.
The use method of the equipment for preparing the double-sided passivation film of the PERC battery comprises the following steps:
s1, feeding and conveying: the battery pieces in the feeding flower basket 1 are conveyed to a feeding storage rack 8 through a feeding conveying belt 2, and when the feeding storage rack 8 is full of the battery pieces, the battery pieces can be temporarily stored in a feeding cache rack 4;
s2, inserting sheet: the sheet inserting and taking manipulator 16 takes out the battery sheets in the loading and storing rack 8 and inserts the battery sheets into the first graphite boat 10;
s3, preparation of back side laminate film: the first purification platform 11 sends the first graphite boat 10 into the first furnace pipe 12 to complete the preparation of the back laminated film, wherein the back laminated film comprises two film layer structures of a back passivation film and a back covering film;
s4, primary unloading: the sheet inserting and taking manipulator 16 is used for sucking and taking out the battery sheets in the first graphite boat 10 and inserting the battery sheets into the first transfer storage rack 9;
s5, secondary inserting sheet: the sheet inserting and taking manipulator 16 takes out the battery sheets in the first transfer storage rack 9 and inserts the battery sheets into the second graphite boat 17;
s6, front antireflection passivation film: the second purification platform 15 sends the second graphite boat 17 into the second furnace tube 14 to complete the preparation of the front antireflection passivation film;
s7, secondary unloading: the sheet inserting and taking manipulator 16 takes out the battery sheets in the second graphite boat 17 and inserts the battery sheets into the blanking storage rack 19;
s8, blanking and conveying: the battery pieces in the blanking storage rack 19 are conveyed to the blanking flower basket 27 by the blanking conveying belt 26, and when the blanking flower basket 27 is full of the battery pieces, the battery pieces can be temporarily stored in the blanking cache rack 24.
In this embodiment, after the primary sheet unloading in step S4 and before the secondary sheet inserting in step S5, the method further includes a first sorting step, where the first sorting step includes: the first color sorting module 7 firstly identifies the battery pieces meeting the color definition requirement and the battery pieces not meeting the color definition requirement in the first transfer storage rack 9, the battery pieces not meeting the color definition requirement are rejected to the first reject collecting box 5 through the first reject module 6, the battery pieces meeting the color definition requirement are conveyed to the second transfer storage rack 18 through the sorting conveying belt 3, and when the second transfer storage rack 18 is full, the battery pieces can be temporarily stored on the sorting cache rack 23.
In this embodiment, after the second sheet unloading in step S7 and before the blanking conveying in step S8, the method further includes a second sorting, where the second sorting includes: the second color sorting module 20 firstly identifies the battery pieces meeting the color definition requirement and the battery pieces not meeting the color definition requirement in the second transfer storage rack 18, the battery pieces not meeting the color definition requirement are rejected to the second reject collection box 22 through the second reject module 21, and the battery pieces meeting the color definition requirement are conveyed to the discharging basket 27 through the discharging conveyor belt 26.
It should be noted that, during the transportation of the feeding conveyor belt 2, the back surface of the battery piece faces upward, the front surface contacts the belt, and the battery piece is conveyed to the feeding storage rack 8, and the back surface of the battery piece in the feeding storage rack 8 faces upward. The sheet inserting/taking robot 16 sucks the back surface of the cell and puts it into the first graphite boat 10. After the process is finished, the inserting and taking mechanical arm 16 adsorbs the back surface of the battery piece and is placed into the first transfer storage rack 9, and the back surface of the battery piece in the first transfer storage rack 9 faces upwards. The battery pieces in the first transfer storage rack 9 pass through the first color sorting module 7, the first waste removing module 6 and the sorting conveyor belt 3 and are conveyed to the second transfer storage rack 18, and the back surfaces of the battery pieces in the second transfer storage rack 18 are placed upwards. The sheet inserting and taking manipulator 16 adsorbs the front surface of the cell and puts it into the second graphite boat 17. If the prepared film backing process does not need color sorting, the inserting and taking mechanical arm 16 can absorb the battery pieces with the back surfaces facing upwards in the storage rack 9 and insert the battery pieces with the front surfaces into the graphite boat 17, and the conversion of the front surfaces and the back surfaces of the battery pieces can be completed through the inserting and taking mechanical arm 16.
In this embodiment, the first furnace tube 12 and the second furnace tube 14 share one gas source cabinet 13, and all process gas pipelines are integrated in the gas source cabinet 13 and connected to the peripheral gas storage tank to provide the process gas required in the process of the first furnace tube 12 and the second furnace tube 14.
Example 2
As shown in fig. 2, the apparatus for preparing a double-sided passivation film of a PERC cell of the present example is different from that of example 1 in that:
in this embodiment, only the second sorting mechanism is provided, and the first sorting mechanism is not provided, and accordingly, the first reject collecting box 5, the first reject module 6, the first color sorting module 7, the sorting conveyor belt 3, the second transfer storage rack 18, and the like do not need to be provided.
After the battery pieces in the first graphite boat 10 are adsorbed and taken out by the piece inserting and taking manipulator 16, the battery pieces are inserted into the first transfer storage rack 9, no sorting work is performed, and directly, the battery pieces in the first transfer storage rack 9 are taken out by the piece inserting and taking manipulator 16 and are inserted into the second graphite boat 17, and the second graphite boat 17 enters the second furnace tube 15 to perform the front-side film making process.
The rest is the same as embodiment 1, and the description is omitted here.
Example 3
As shown in fig. 3, the apparatus for preparing a double-sided passivation film of a PERC cell of the present example is different from that of example 1 in that:
in this embodiment, there is no first sorting mechanism and no second sorting mechanism, and accordingly, there is no need to provide the first reject collecting box 5, the first reject module 6, the first color sorting module 7, the sorting conveyor 3, the second transfer storage rack 18, the second color sorting module 20, the second reject module 21, and the second reject collecting box 22.
After the battery pieces in the first graphite boat 10 are adsorbed and taken out by the inserting and taking-out mechanical arm 16, the battery pieces are inserted into the first transfer storage rack 9, no sorting work is performed, the battery pieces in the first transfer storage rack 9 are directly taken out by the inserting and taking-out mechanical arm 16 and are inserted into the second graphite boat 17, the second graphite boat 17 enters the second furnace tube 15 to perform a front film making process, after the front film making process is completed, the battery pieces on the second graphite boat 17 are taken out by the inserting and taking-out mechanical arm 16 and are placed into the discharging storage rack 19, and then the battery pieces are conveyed to the discharging basket 27.
The rest is the same as embodiment 1, and the description is omitted here.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (8)
1. The utility model provides an equipment for preparing two-sided passive film of PERC battery, a serial communication port, including first clean bench (11), second clean bench (15), first boiler tube (12), second boiler tube (14), first graphite boat (10), second graphite boat (17), insert and get piece manipulator (16), material loading transfer chain and unloading transfer chain, first boiler tube (12), first clean bench (11), first graphite boat (10) and material loading transfer chain set gradually, second boiler tube (14), second clean bench (15), second graphite boat (17) and unloading transfer chain set gradually, first clean bench (11), second clean bench (15) position correspond, first graphite boat (10) corresponds with second graphite boat (17) position, insert and get piece manipulator (16) and be located first clean bench (11), second clean bench (15), In the region that first graphite boat (10) and second graphite boat (17) enclose, the material loading transfer chain is including material loading basket of flowers (1), material loading transmission band (2) and material loading storage rack (8) that set gradually, material loading storage rack (8) are adjacent with first graphite boat (10), the unloading transfer chain is including material unloading basket of flowers (27), unloading transmission band (26) and unloading storage rack (19) in proper order, unloading storage rack (19) are adjacent with second graphite boat (17), be equipped with first transfer storage rack (9) between material loading storage rack (8) and unloading storage rack (19), still be equipped with second transfer storage rack (18) between material loading storage rack (8) and unloading storage rack (19), one side of material loading transfer chain is equipped with first sorting mechanism, first sorting mechanism docks with second transfer storage rack (18) through sorting transmission band (3), the first sorting mechanism comprises a first color sorting module (7) and a first waste removing module (6), the first color sorting module (7) is used for identifying battery pieces meeting color definition requirements and battery pieces not meeting the color definition requirements, the first waste removing module (6) is used for removing battery pieces with unqualified colors, the sorting conveying belt (3) is composed of a front section, a middle section and a rear section, the front section and the rear section are parallel and opposite in conveying direction, and the middle section is located between the front section and the rear section and used for connecting the front section and the rear section; and a sorting buffer frame (23) is arranged at one end of the sorting conveying belt (3) close to the second transfer storage frame (18).
2. The equipment for preparing the double-sided passivation film of the PERC battery as claimed in claim 1, wherein a loading buffer storage rack (4) for buffering the battery pieces is arranged between the loading flower basket (1) and the loading storage rack (8), and a blanking buffer storage rack (24) for buffering the battery pieces is arranged between the blanking flower basket (27) and the blanking storage rack (19).
3. The apparatus for preparing a double-sided passivation film of a PERC battery according to claim 1, wherein the first sorting mechanism is further provided with a first reject collection box (5).
4. The equipment for preparing the double-sided passivation film of the PERC battery as claimed in any one of claims 1 to 3, wherein a second sorting mechanism is arranged on one side of the blanking conveying line, the second sorting mechanism is arranged between the blanking storage rack (19) and the blanking basket (27), the second sorting mechanism comprises a second color sorting module (20) and a second rejecting module (21), the second color sorting module (20) is used for identifying the battery pieces meeting the color definition requirement and the battery pieces not meeting the color definition requirement, and the second rejecting module (21) is used for rejecting the battery pieces not meeting the color definition requirement.
5. The apparatus for preparing a double-sided passivation film for a PERC battery according to claim 4, wherein the second sorting mechanism is further provided with a second reject collection box (22).
6. The use method of the equipment for preparing the double-sided passivation film of the PERC battery based on any one of claims 1 to 5 is characterized by comprising the following steps:
s1, feeding and conveying: the battery pieces in the feeding flower basket (1) are conveyed into a feeding storage rack (8) through a feeding conveying belt (2);
s2, primary sheet insertion: the battery piece inserting and taking manipulator (16) takes out the battery pieces in the feeding and storing rack (8) and inserts the battery pieces into the first graphite boat (10);
s3, preparation of back side laminate film: the first purification platform (11) sends the first graphite boat (10) into a first furnace tube (12) to finish the preparation of the back laminated film, wherein the back laminated film comprises two film structures of a back passivation film and a back covering film;
s4, primary unloading: the first purifying platform (11) sends the first graphite boat (10) out of the first furnace tube (12), and the sheet inserting and taking manipulator (16) adsorbs and takes out the battery sheets in the first graphite boat (10) and inserts the battery sheets into the first transfer storage rack (9);
s5, secondary inserting sheet: the chip inserting and taking manipulator (16) takes out the battery chips in the first transfer storage rack (9) and inserts the battery chips into a second graphite boat (17);
s6, front antireflection passivation film: the second purification table (15) sends the second graphite boat (17) into the second furnace tube (14) to finish the preparation of the front antireflection passivation film;
s7, secondary unloading: the second purifying table (15) sends the second graphite boat (17) out of the second furnace tube (14), and the battery plate in the second graphite boat (17) is taken out by the plate inserting and taking manipulator (16) and inserted into the blanking storage rack (19);
s8, blanking and conveying: the battery pieces in the blanking storage rack (19) are conveyed into a blanking flower basket (27) through a blanking conveying belt (26).
7. The use method of the apparatus for preparing a double-sided passivation film of a PERC battery as claimed in claim 6, wherein after the step S4 and before the step S5, further comprising the step of first sorting, wherein the first sorting comprises: the first color sorting module (7) firstly identifies the battery pieces meeting the color definition requirement and the battery pieces not meeting the color definition requirement in the first transfer storage rack (9), the battery pieces not meeting the color definition requirement are rejected to the first reject collection box (5) through the first reject module (6), and the battery pieces meeting the color definition requirement are conveyed to the second transfer storage rack (18) through the sorting conveying belt (3).
8. The method as claimed in claim 7, further comprising a second sorting step after step S7 and before step S8, wherein the second sorting step comprises: the second color sorting module (20) identifies the battery pieces meeting the color definition requirement and the battery pieces not meeting the color definition requirement in the second transfer storage rack (19), the battery pieces not meeting the color definition requirement are rejected to a second reject collection box (22) through a second reject module (21), and the battery pieces meeting the color definition requirement are conveyed to a discharging basket (27) through a discharging conveying belt (26).
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