CN202259368U - Large power solar energy assembly of double junction boxes - Google Patents

Large power solar energy assembly of double junction boxes Download PDF

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Publication number
CN202259368U
CN202259368U CN2011203676588U CN201120367658U CN202259368U CN 202259368 U CN202259368 U CN 202259368U CN 2011203676588 U CN2011203676588 U CN 2011203676588U CN 201120367658 U CN201120367658 U CN 201120367658U CN 202259368 U CN202259368 U CN 202259368U
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CN
China
Prior art keywords
terminal box
series loop
negative pole
lead
anodal
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Expired - Lifetime
Application number
CN2011203676588U
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Chinese (zh)
Inventor
黄朝武
陈海军
俞佳辰
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JIANGSU SHIGUANG PV CO Ltd
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JIANGSU SHIGUANG PV CO Ltd
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Priority to CN2011203676588U priority Critical patent/CN202259368U/en
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Publication of CN202259368U publication Critical patent/CN202259368U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The utility model discloses a large power solar energy assembly of double junction boxes, which is provided with an positive pole junction box (18) and a negative pole junction box (17), wherein each junction box is provided with only one lead, the lead extracted by the positive pole junction box (18) is a positive lead (20), the lead extracted by the negative pole junction box (17) is a negative lead (19), and the double junction boxes are matched to use. Battery strings (1, 2, 3, 4, 5, 6, 7 and 8) form a negative pole series loop, and five outgoing wires are extracted to penetrate through a back plate to be connected with the negative pole junction box. Battery strings (9, 10, 11, 12, 13, 14, 15 and 16) form a positive pole series loop, and five outgoing wires are extracted to penetrate through the back plate to be connected with the positive pole junction box. The positive pole series loop and the negative pole series loop are connected in the interior through a confluence strap (21) to form an integral series loop. A solar energy assembly obtained through the production method of the large power solar energy assembly of the double junction boxes is high in efficiency and low in assembly reject ratio.

Description

Two terminal box big-power solar assemblies
Technical field
The utility model relates to solar components, is specifically related to a kind of pair of terminal box big-power solar assembly.
Background technology
Solar photovoltaic assembly is the device that solar energy is converted into electric energy by photovoltaic effect, when solar irradiation is mapped to surfaces of cell, can produce photogenerated current.The solar battery sheet monomer generally can't satisfy normal user demand; Need some battery sheets be combined through the lamination encapsulation through auxiliary material welding, the band that confluxes, EVA, backboard, glass; Refill aluminum alloy frame; With the electric current output that produces, become a complete solar module through terminal box.The quantity of battery sheet is many more, and the power of solar components output is big more.
At present, solar photovoltaic assembly generally uses a photovoltaic junction box, owing to receive the restriction of terminal box internal wiring terminal, the quantity of battery strings is generally 6 strings, 8 strings or 10 strings, can't make the assembly of higher-wattage.In the process that solar components is produced; The welding that uses is generally all slightly long than actual size with the band that confluxes, and after lamination procedure has connect the welding and the tape welding that confluxes, needs the unnecessary welding and the band that confluxes are pruned; Increased operating procedure on the one hand; Do not find if the part that prunes away on the other hand falls into assembly, will cause the bad of assembly, influenced the rate of finished products of product.And the welding temperature that existing solar components uses is generally more than 340 ℃, and temperature is high more, and it is also big more to produce the latent risk of splitting of welding.
Summary of the invention
The utility model technical problem to be solved is: a kind of pair of terminal box big-power solar assembly is provided, and the more battery strings of arranging in the block assembly reduces fraction defective, improves the quality of products.
For addressing the above problem; The technical solution of the utility model is: photovoltaic module comprises photovoltaic glass, EVA glued membrane, TPT backboard, solar battery sheet, welding, the band that confluxes, photovoltaic junction box, aluminum alloy frame; It is characterized in that: solar components has anodal terminal box and negative pole terminal box, and each terminal box has only a lead, and what anodal terminal box was drawn is positive wire; What the negative pole terminal box was drawn is cathode conductor, two supporting uses of terminal box; Some battery strings constitute anodal series loop, draw five lead-out wires and pass backboard, are connected with anodal terminal box; Some battery strings constitute the negative pole series loop, draw five lead-out wires and pass backboard, are connected with the negative pole terminal box; Anodal series loop is connected through the band that confluxes in inside with the negative pole series loop, constitutes series loop.
Wherein, the production method of two terminal box big-power solar assemblies may further comprise the steps:
(1) battery sheet sorting: the outward appearance to the battery sheet is carried out sorting, chooses defective products, classifies according to the various colors grade;
(2) material is prepared: comprise welding, the band that confluxes, TPT, EVA cut the immersion of welding and oven dry; Welding cuts according to the physical length that product uses with the length of the band that confluxes, be convenient to lamination exempt from cut;
(3) battery strings welding: use the series welding template that has groove accurately to locate welding, solar battery sheet is welded into battery strings through welding for 320~330 ℃ in temperature;
(4) lamination: at first; Battery strings is arranged according to predetermined polarity, and some battery strings connect and compose anodal series loop, and some battery strings connect and compose the negative pole series loop; Anodal series loop is connected through the band that confluxes in inside with the negative pole series loop, constitutes a whole series loop; Then, glass, EVA, series loop and backboard carry out lamination in the correct order;
(5) intermediate examination and measurement: it is bad whether the good assembly of detection lamination has, and comprises electrical property and outward appearance;
(6) lamination: lamination and the good assembly of intermediate examination and measurement are put into laminating machine, and through vacuumizing, heat, pressurizeing, the EVA thawing is bonded together glass, backboard, series loop;
(7) deburring: the assembly that lamination is good is cooled to below 50 ℃, and EVA that glass edge is overflowed and unnecessary TPT backboard cut, and make glass edge smooth;
(8) frame is installed: the laminate after the deburring is loaded onto aluminum alloy frame, and frame glue is wanted evenly fully, plays the effect of sealing;
(9) terminal box is installed: load onto two terminal boxes according to polarity, one is anodal terminal box, and one is the negative pole terminal box;
(10) power test: the assembly behind the installation connection box was placed four hours on the curing line, carried out power test, preserve power test data and power;
(11) the infrared latent detection of splitting: use the latent tester that splits, whether the inspection assembly exists latent splitting, to guarantee the quality of product;
(12) cleaning surfaces: the foreign matter on clean-out assembly surface comprises that frame plastic film, unnecessary silica gel and other are dirty, to guarantee the presentation quality of product;
(13) visual inspection: quality personnel inspection assembly outward appearance, choose defective product;
(14) packing warehouse-in:, stick corresponding outer container sign with the assembly packing case of packing into.
The utility model has the advantages that: 1, adopt two terminal boxes to increase the quantity of battery strings in the assembly, improved the power of monolithic solar module; 2, use the fixed-length welding-band and the band that confluxes, remove shearing procedure from, reduced the generation of defective products in the production process, improve throughput rate; 3, adopt soldered, reduce the latent generation of splitting of welding, improve rate of finished products.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further narration.
Fig. 1 is the two terminal box big-power solar modular construction sketch mapes of the utility model.
Fig. 2 is the stacked graph of two terminal box big-power solar assemblies.
Fig. 3 is the circuit diagram that two terminal box big-power solar assemblies are implemented.
Fig. 4 is two terminal box big-power solar assembly series welding template sketch mapes.
Embodiment
Below in conjunction with accompanying drawing with through specific embodiment the utility model is described in further detail.
Shown in Fig. 1-4; Photovoltaic module comprises photovoltaic glass, EVA glued membrane, TPT backboard, solar battery sheet, welding, conflux band and photovoltaic junction box, aluminum alloy frame; It is characterized in that: solar components has anodal terminal box 18 and negative pole terminal box 17, and each terminal box has only a lead, and what anodal terminal box 18 was drawn is positive wire 20; What negative pole terminal box 17 was drawn is 19, two supporting uses of terminal box of cathode conductor; Battery strings 1,2,3,4,5,6,7,8 constitutes the negative pole series loop, draws five lead-out wires and passes backboard, is connected with the negative pole terminal box; Battery strings 9,10,11,12,13,14,15,16 constitutes anodal series loop, draws five lead-out wires and passes backboard, is connected with anodal terminal box; Anodal series loop is with 21 to be connected in inside through confluxing with the negative pole series loop, constitutes a whole series loop.
Embodiment: produce two terminal box big-power solar assemblies according to following steps:
(1) battery sheet sorting: the outward appearance to the battery sheet is carried out sorting, chooses defective products, classifies according to the various colors grade;
(2) material is prepared: comprise welding, the band that confluxes, TPT, EVA cut the immersion of welding and oven dry; According to two terminal box solar components stacked graphs of Fig. 2, the physical length of the welding that calculate to use and the band that confluxes cuts welding and confluxes band according to this size, be convenient to lamination exempt from cut;
(3) battery strings welding: like Fig. 4, use the series welding template of band groove 22 accurately to locate welding, solar battery sheet is welded into battery strings through welding for 320~330 ℃ in temperature;
(4) lamination: like Fig. 2; At first; Battery strings is arranged according to predetermined polarity, and some battery strings 1-8 connect and compose the negative pole series loop, and some battery strings 9-16 connect and compose anodal series loop; Anodal series loop is with 21 to be connected in inside through confluxing with the negative pole series loop, constitutes a whole series loop; Then, glass, EVA, series loop and backboard carry out lamination in the correct order;
(5) intermediate examination and measurement: it is bad whether the good assembly of detection lamination has, and comprises electrical property and outward appearance;
(6) lamination: lamination and the good assembly of intermediate examination and measurement are put into laminating machine, and through vacuumizing, heat, pressurizeing, the EVA thawing is bonded together glass, backboard, series loop;
(7) deburring: the assembly that lamination is good is cooled to below 50 ℃, and EVA that glass edge is overflowed and unnecessary TPT backboard cut, and make glass edge smooth;
(8) frame is installed: the laminate after the deburring is loaded onto aluminum alloy frame, and frame glue is wanted evenly fully, plays the effect of sealing;
(9) terminal box is installed: like Fig. 1, load onto two terminal boxes according to polarity, one is that 18, one of anodal terminal boxes are negative pole terminal box 17;
(10) power test: the assembly behind the installation connection box was placed four hours on the curing line, carried out power test, preserve power test data and power;
(11) the infrared latent detection of splitting: use the latent tester that splits, whether the inspection assembly exists latent splitting, to guarantee the quality of product;
(12) cleaning surfaces: the foreign matter on clean-out assembly surface comprises that frame plastic film, unnecessary silica gel and other are dirty, to guarantee the presentation quality of product;
(13) visual inspection: quality personnel inspection assembly outward appearance, choose defective product;
(14) packing warehouse-in:, stick corresponding outer container sign with the assembly packing case of packing into.

Claims (1)

1. two terminal box big-power solar assemblies; Photovoltaic module comprises photovoltaic glass, EVA glued membrane, TPT backboard, solar battery sheet, welding, conflux band and photovoltaic junction box, aluminum alloy frame; It is characterized in that: solar components has anodal terminal box (18) and negative pole terminal box (17), and each terminal box has only a lead, and what anodal terminal box (18) was drawn is positive wire (20); What negative pole terminal box (17) was drawn is cathode conductor (19), two supporting uses of terminal box; Battery strings (1,2,3,4,5,6,7,8) constitutes the negative pole series loop, draws five lead-out wires and passes backboard, is connected with the negative pole terminal box; Battery strings (9,10,11,12,13,14,15,16) constitutes anodal series loop, draws five lead-out wires and passes backboard, is connected with anodal terminal box; Anodal series loop is connected through the band (21) that confluxes in inside with the negative pole series loop, constitutes series loop.
CN2011203676588U 2011-09-29 2011-09-29 Large power solar energy assembly of double junction boxes Expired - Lifetime CN202259368U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203676588U CN202259368U (en) 2011-09-29 2011-09-29 Large power solar energy assembly of double junction boxes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203676588U CN202259368U (en) 2011-09-29 2011-09-29 Large power solar energy assembly of double junction boxes

Publications (1)

Publication Number Publication Date
CN202259368U true CN202259368U (en) 2012-05-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102315303A (en) * 2011-09-29 2012-01-11 江苏石光光伏有限公司 High-power solar assembly with dual junction boxes and production method thereof
CN108921252A (en) * 2018-07-13 2018-11-30 汉能移动能源控股集团有限公司 The identifying system and method for solar components identification code
CN110112239A (en) * 2019-03-21 2019-08-09 国家电投集团西安太阳能电力有限公司 A method of reducing solar cell module power loss

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102315303A (en) * 2011-09-29 2012-01-11 江苏石光光伏有限公司 High-power solar assembly with dual junction boxes and production method thereof
CN108921252A (en) * 2018-07-13 2018-11-30 汉能移动能源控股集团有限公司 The identifying system and method for solar components identification code
CN108921252B (en) * 2018-07-13 2021-10-26 北京晖宏科技有限公司 Identification system and method for solar module identification code
CN110112239A (en) * 2019-03-21 2019-08-09 国家电投集团西安太阳能电力有限公司 A method of reducing solar cell module power loss

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Granted publication date: 20120530