CN102117864A - Method for processing photovoltaic module - Google Patents
Method for processing photovoltaic module Download PDFInfo
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- CN102117864A CN102117864A CN2009102621960A CN200910262196A CN102117864A CN 102117864 A CN102117864 A CN 102117864A CN 2009102621960 A CN2009102621960 A CN 2009102621960A CN 200910262196 A CN200910262196 A CN 200910262196A CN 102117864 A CN102117864 A CN 102117864A
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a method for processing a photovoltaic module, wherein vacuum heating is maintained by utilizing a hot air convection way; in the heating process, the photovoltaic module is maintained in vacuum; and with a film being heated and melted, all parts of the photovoltaic module can be adhered under the action of atmospheric pressure to complete the processing of the photovoltaic module. According to the method for processing the photovoltaic module, which is provided by the invention, the laid photovoltaic module can be heated by utilizing the hot air convection way to ensure that the heating of the each part of the photovoltaic module is more uniform and the phenomena the periphery of the photovoltaic module is tilting and further welding strips are bent or shifted due to non-uniform heating can be avoided; therefore, the appearance of the processed photovoltaic module can be improved.
Description
Technical field
The present invention relates to field of solar thermal power generation, particularly a kind of processing method of photovoltaic module.
Background technology
Solar energy power generating is to utilize the photovoltaic effect of interface and a kind of technology of luminous energy directly being changed into electric energy.Solar cell can form large-area solar photovoltaic generating assembly through carrying out packaging protection after connecting, and cooperates parts such as going up power controller just to form photovoltaic power generation apparatus again.Two glass assemblies are a kind of of extensive use in the photovoltaic module.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of typical pair of glass assembly in the prior art.
Two glass assemblies comprise be positioned at its front can printing opacity glass 11, preceding film 12, back film 15, be positioned at the glass with weatherability 14 at its back side and the photovoltaic cell 13 by welding 131 welding series connection; Glass 11 that can printing opacity is arranged at the front of assembly, not only can make light see through glass and shine on the photovoltaic cell 13, produces electric energy, and because glass 11 has certain rigidity, therefore can support whole assembly, improves the rigidity of assembly; Film 12 before the front side of photovoltaic cell 13 is provided with, and its rear side is provided with back film 15, is used to contrast the battery that is easier to damage and protects; And in the course of processing, utilize high temperature that film is melted, glass 11, photovoltaic cell 13 and glass 14 are sticked together.
In the prior art, the general laminating apparatus that uses heats photovoltaic module, the photovoltaic module that assembles is placed on the heating plate of laminating machine, under vacuum condition, utilize heating plate that photovoltaic module is heated, film is melted, simultaneously, because an atmospheric pressure is born on the surface of assembly, assembly just carries out lamination and exhaust atmospheric under used.
Yet, in the course of processing, because glass 14 has certain thickness, and glass 14 has less conductive coefficient, in heating process, make being heated of glass 14 each position inhomogeneous easily, glass 14 and the contacted side expanded by heating of heating plate have been caused, finally cause the perk all around of glass 14, and the also perk all around under the drive of glass 14 of film that places glass 14 tops, film in the middle of making and the film all around inequality of being heated, cause the contraction inequality of film, caused the crooked or displacement of the welding that connects photovoltaic cell, influenced the outward appearance of photovoltaic module, and photovoltaic module mainly is the surface formation curtain wall that is installed on building, and the situation of its outward appearance has directly determined the situation of the outward appearance of curtain wall.
Therefore, how to improve the inequality of being heated in the photovoltaic module course of processing, and then the profile of improving photovoltaic module is the present technical issues that need to address of those skilled in the art.
Summary of the invention
The processing method that the purpose of this invention is to provide a kind of photovoltaic module, this processing method can be improved the inequality of being heated in the photovoltaic module course of processing, and then improve the profile of photovoltaic module.
For solving the problems of the technologies described above, the invention provides a kind of processing method of photovoltaic module, may further comprise the steps:
1) provides photovoltaic cell, film, postnotum and the printing opacity front panel that utilizes welding welding series connection;
2) lay described postnotum, described film, described photovoltaic cell, described film and described printing opacity front panel in order successively, and the described photovoltaic module that will lay is put in vacuum extractor, vacuumizes;
3) described photovoltaic module is put in heater, and adopts the mode of hot-air convection to keep heating in vacuum.
Preferably, in described step 2) in, lay described photovoltaic cell after, around described photovoltaic module, lay described film, and the thickness of described film is greater than the thickness of described photovoltaic module.
Described step 2) and further comprising the steps of between the described step 3) preferably:
21) described photovoltaic module is carried out electroluminescence test, the photo of photovoltaic module when taking the electroluminescence test is judged whether uniformity of described photo color everywhere, if, turn to step 3), if not, turn to step 22);
22) rejected part in the described photovoltaic module of replacing, and turn to step 2).
Preferably, further comprising the steps of after the described step 3):
4) the described photovoltaic module after will heating is put in autoclave and keeps high temperature to carry out HIGH PRESSURE TREATMENT.
Preferably, in described step 2) in, described vacuum means is changed to vacuum bag.
Preferably, in described step 2) in, described vacuum means is changed to vaccum seal ring.
Preferably, in described step 3), described heater is a baking oven.
Preferably, described baking oven is the temperature adjustment baking oven.
Preferably, in described step 1), described printing opacity front panel is a transparent glass; Described postnotum is glass or fibre-reinforced plastics plate.
The processing method of photovoltaic module provided by the present invention, postnotum at first is provided, film, utilize the photovoltaic cell and the printing opacity front panel of welding welding series connection, and lay postnotum successively according to existing processes, film, photovoltaic cell, film and printing opacity front panel, the photovoltaic module that will lay is positioned over vacuum extractor then, vacuumize, again photovoltaic module is put in heater, adopt the mode of hot-air convection to keep heating in vacuum, in this process, because photovoltaic module heats under the maintenance vacuum condition, all the time there is an atmospheric pressure to act on the photovoltaic module, along with the film thawing of being heated, just each position of photovoltaic module can be bonded together, finish the processing of photovoltaic module.The processing method of photovoltaic module provided by the present invention, adopt the mode of hot-air convection that the photovoltaic module that lays is heated, can make photovoltaic module each position be heated comparatively even, avoided owing to the inequality of being heated causes photovoltaic module perk all around, and then the phenomenon that welding is crooked and be shifted occurs, thereby improved the outward appearance of the photovoltaic module that machines.
At a kind of preferred embodiment; the processing method of photovoltaic module provided by the present invention is also laid film around photovoltaic cell and welding; and the thickness of film is greater than the thickness of photovoltaic cell; like this; the not only protection that film is arranged all around of photovoltaic cell; and film can replace photovoltaic cell to support film and the printing opacity front panel that is laid in the photovoltaic cell top; thereby make photovoltaic cell be in the state of hollow out; avoid effectively owing to the pressure of parts around the film or the generation of the photovoltaic cell fragment phenomenon that collision causes; reduce the fragment rate in the course of processing, improved the qualification rate of photovoltaic module processing.
In another kind of embodiment, the processing method of photovoltaic module provided by the present invention is also carried out the electroluminescence test to photovoltaic module, the photo of photovoltaic module when taking the electroluminescence test, judge whether consistent immaculate of described photo color everywhere, if, carry out heat again, otherwise, then change the parts that damage, lay again then, vacuumize and heat.Like this, can before together, change the parts that damage in time, not only improve the qualification rate of photovoltaic module processing, and avoid the waste of qualified parts, reduce the production cost of photovoltaic module at each adhering components.
Description of drawings
Fig. 1 is the structural representation of a kind of typical photovoltaic module in the prior art;
The schematic flow sheet of the processing method of the photovoltaic module that Fig. 2 is provided for a kind of embodiment of the present invention;
Fig. 3 is the schematic flow sheet of the processing method of second kind of photovoltaic module that embodiment provided of the present invention;
The schematic flow sheet of the processing method of the photovoltaic module that Fig. 4 is provided for the third embodiment of the present invention;
Fig. 5 is the schematic flow sheet of the processing method of the 4th kind of photovoltaic module that embodiment provided of the present invention.
Embodiment
Core of the present invention provides a kind of processing method of photovoltaic module, and this processing method can be improved the inequality of being heated in the photovoltaic module course of processing, and then improves the profile of photovoltaic module.
In order to make those skilled in the art understand the solution of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2, the schematic flow sheet of the processing method of the photovoltaic module that Fig. 2 is provided for a kind of embodiment of the present invention.
In a kind of embodiment, the processing method of photovoltaic module provided by the present invention may further comprise the steps:
Step S1: the photovoltaic cell, film, postnotum and the printing opacity front panel that utilize welding welding series connection are provided.
Photovoltaic module comprises photovoltaic cell, film, postnotum and printing opacity front panel substantially, photovoltaic cell is by welding welding series connection, so that the electric energy transmitting that each photovoltaic cell is produced is to storage battery or electrical network, film is used for protecting described photovoltaic cell in first being processed on the one hand, be used on the other hand when high temperature melt, together each adhering components of photovoltaic cell; The printing opacity front panel can guarantee irradiate light in photovoltaic cell, realizes that luminous energy is converted into electric energy; Postnotum and printing opacity front panel have the effect of supporting and protecting to the overall optical photovoltaic assembly.
Particularly, the printing opacity front panel can be transparent glass; Postnotum can be glass or fibre-reinforced plastics plate.Wherein, the fibre-reinforced plastics plate not only has enough rigidity, and has lighter quality, thereby has reduced the quality of photovoltaic module, has made things convenient for the transportation of photovoltaic module and the outside the building installation on surface, has enlarged the scope of application of photovoltaic module.Step S2: lay postnotum, film, photovoltaic cell, film and printing opacity front panel in order successively, and the photovoltaic module that will lay is put in vacuum extractor, vacuumizes.
In the course of processing, finish above-mentioned laid processes successively according to existing processes, both can lay postnotum, film, photovoltaic cell, film and printing opacity front panel from bottom to top successively, also can lay printing opacity front panel, film, photovoltaic cell, film and postnotum from bottom to top successively, as long as the relative position between each parts of photovoltaic module is determined.
The photovoltaic module integral body of laying is positioned over vacuum extractor, vacuum slot by vacuum extractor vacuumizes it, with the air between each parts of eliminating photovoltaic module, avoid the inside of the photovoltaic module of machine-shaping to have bubble, influence the quality of photovoltaic module, and photoelectric conversion efficiency and power output.
Step S3: photovoltaic module is put in heater, and adopts the mode of hot-air convection to keep heating in vacuum.
Vacuumize finish after, keeping vacuum state to be positioned over heater photovoltaic module heats, for avoiding the inequality of being heated at each position of photovoltaic module, adopt the mode of hot-air convection to heat, make each position of photovoltaic module can both thermally equivalent, thereby film is melted, each position of photovoltaic module is bonded together.Because photovoltaic module is in vacuum state all the time when heating, just its outside has an atmospheric pressure all the time, and after film melted, each position of photovoltaic module was bonding under the effect of pressure, and bubble extruded, the quality that has guaranteed photovoltaic module with and the aesthetic measure of outward appearance.
As can be seen, the processing method of photovoltaic module provided by the present invention, adopt the mode of hot-air convection that the photovoltaic module that lays is heated, can make photovoltaic module each position be heated comparatively even, avoided owing to the inequality of being heated causes photovoltaic module perk all around, and then the phenomenon that welding is crooked and be shifted occurs, thereby improved the outward appearance of the photovoltaic module that machines.
Please refer to Fig. 3, Fig. 3 is the schematic flow sheet of the processing method of second kind of photovoltaic module that embodiment provided of the present invention.
In second kind of embodiment, step S2 is replaced with step S2 ', be specially: lay postnotum, film and photovoltaic cell in order successively, and around photovoltaic module applied thickness greater than the described film of the thickness of photovoltaic module, opposite side at photovoltaic cell lays film and printing opacity front panel successively, and the photovoltaic module that will lay is put in vacuum extractor, vacuumizes.
Like this; the not only protection that film is arranged all around of photovoltaic cell; and film can replace photovoltaic cell to support film and the printing opacity front panel that is laid in the photovoltaic cell top; thereby make photovoltaic cell be in the state of hollow out; avoid effectively owing to the pressure of parts around the film or the generation of the photovoltaic cell fragment phenomenon that collision causes; reduce the fragment rate in the course of processing, improved the qualification rate of photovoltaic module processing.
Please refer to Fig. 4, the schematic flow sheet of the processing method of the photovoltaic module that Fig. 4 is provided for the third embodiment of the present invention.
In the third embodiment, the processing method of photovoltaic module provided by the present invention can also increase following steps between step S2 and step S3:
Step S21: photovoltaic module is carried out electroluminescence test, and the photo of photovoltaic module when taking the electroluminescence test is judged whether uniformity immaculate of photo color everywhere, if, turn to step S3, if not, turn to step S22;
Step S22: change the rejected part in the described photovoltaic module, and turn to step S2.
Photovoltaic module is carried out the electroluminescence test be meant,, make it luminous the energising of the photovoltaic module after vacuumizing.But, because the light that this moment, photovoltaic module sent is invisible light, therefore, use infrared camera to shine, obtain the luminous photo after photovoltaic module is switched on, whether the color of judging each position of photovoltaic module in the photo then uniformity, be speckless, if, then turn to step S3, otherwise, turn to step S22, that is: change the rejected part in the photovoltaic module.Generally, because photovoltaic cell is more frangible, therefore, the general replacement photovoltaic cell gets final product.
Like this, just can before together, change the parts that damage in time, not only improve the qualification rate of photovoltaic module processing, and avoided the waste of qualified parts in the photovoltaic module, reduce the production cost of photovoltaic module at each adhering components.
Please refer to Fig. 5, Fig. 5 is the schematic flow sheet of the processing method of the 4th kind of photovoltaic module that embodiment provided of the present invention.
In the 4th kind of embodiment, the processing method of photovoltaic module provided by the present invention can also increase following steps after step S3:
Step S4: the photovoltaic module after will heating is put in autoclave and keeps high temperature to carry out HIGH PRESSURE TREATMENT.
In autoclave, generally bear because photovoltaic module is in 1 the atmospheric pressure under the vacuum state except that need, also to bear the pressure of about 12Kg, thereby make between each parts of photovoltaic module bonding better, high pressure effect simultaneously can also be extruded the bubble of photovoltaic module inside, has further improved the quality and the aesthetics of the photovoltaic module of processing.
In a kind of embodiment, step S2, step S3 and step S4 can also be finished in autoclave simultaneously, to improve working (machining) efficiency.
Certainly; more than the step that increased in second kind to the 4th kind embodiment provided by the present invention; in the course of processing; can use simultaneously; also can only use any step wherein; perhaps all need not, the present invention does not limit this, any execution mode all falls into protection scope of the present invention.
Particularly, in step S2, vacuum extractor can be vacuum bag.The photovoltaic module that lays is positioned in the vacuum bag, vacuum slot is installed on vacuum bag, and carry out sealing, begin then to vacuumize.Like this, the area of vacuum-pumping can arbitrarily be provided with, and can not be subjected to the restriction of the platen of laminating machine; Simultaneously, because the mode of heating of the processing method of photovoltaic module provided by the present invention is a hot-air convection, avoided of the restriction of original mode of heating for the shape of photovoltaic module, this two aspect acts on simultaneously, thereby realized processing jointly for nonplanar photovoltaic module, such as the hyperboloid assembly, enlarged the scope of application of photovoltaic module.Certainly, the vacuum extractor of the processing method of photovoltaic module provided by the present invention is not limited to above-described vacuum bag, other can realize vacuumizing function device (such as: vaccum seal ring) all be fine.
In a kind of embodiment, the heater of step S3 can be baking oven.Photovoltaic module is positioned in the baking oven, utilize the hot-air convection in the baking oven that each position of photovoltaic module is heated simultaneously, not only homogeneous heating, and versatility is good, be not subjected to the restriction of the size and dimension etc. of photovoltaic module, reduced the manufacturing cost of photovoltaic module to a certain extent.
Certainly, in order to adapt to the different requirements of different materials for heating-up temperature, described baking oven can also be specially the temperature adjustment baking oven.
More than the processing method of photovoltaic module provided by the present invention is described in detail.Used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection range of claim of the present invention.
Claims (9)
1. the processing method of a photovoltaic module may further comprise the steps:
1) provides photovoltaic cell, film, postnotum and the printing opacity front panel that utilizes welding welding series connection;
2) lay described postnotum, described film, described photovoltaic cell, described film and described printing opacity front panel in order successively, and the described photovoltaic module that will lay is put in vacuum extractor, vacuumizes;
3) described photovoltaic module is put in heater, and adopts the mode of hot-air convection to keep heating in vacuum.
2. the processing method of photovoltaic module according to claim 1 is characterized in that, in described step 2) in, lay described photovoltaic cell after, around described photovoltaic module, lay described film, and the thickness of described film is greater than the thickness of described photovoltaic module.
3. the processing method of photovoltaic module according to claim 1 is characterized in that, described step 2) and described step 3) between further comprising the steps of:
21) described photovoltaic module is carried out electroluminescence test, the photo of photovoltaic module when taking the electroluminescence test is judged whether uniformity of described photo color everywhere, if, turn to step 3), if not, turn to step 22);
22) rejected part in the described photovoltaic module of replacing, and turn to step 2).
4. the processing method of photovoltaic module according to claim 1 is characterized in that, and is further comprising the steps of after the described step 3):
4) the described photovoltaic module after will heating is put in autoclave and keeps high temperature to carry out HIGH PRESSURE TREATMENT.
5. according to the processing method of each described photovoltaic module of claim 1 to 4, it is characterized in that, in described step 2) in, described vacuum means is changed to vacuum bag.
6. according to the processing method of each described photovoltaic module of claim 1 to 4, it is characterized in that, in described step 2) in, described vacuum means is changed to vaccum seal ring.
7. according to the processing method of each described photovoltaic module of claim 1 to 4, it is characterized in that in described step 3), described heater is a baking oven.
8. the processing method of photovoltaic module according to claim 7 is characterized in that, described baking oven is the temperature adjustment baking oven.
9. according to the processing method of each described photovoltaic module of claim 1 to 4, it is characterized in that in described step 1), described printing opacity front panel is a transparent glass; Described postnotum is glass or fibre-reinforced plastics plate.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544167A (en) * | 2012-02-24 | 2012-07-04 | 上饶光电高科技有限公司 | MWT (Metal Wrap-Through) solar cell assembly and manufacturing method thereof |
| CN102779876A (en) * | 2012-08-01 | 2012-11-14 | 保定嘉盛光电科技有限公司 | Full-glass assembly and manufacture method thereof |
| CN102983213A (en) * | 2012-11-16 | 2013-03-20 | 中电电气（南京）光伏有限公司 | Lamination preparation process of curved-surface double-glass photovoltaic module |
| CN102991090A (en) * | 2012-11-16 | 2013-03-27 | 中电电气（南京）光伏有限公司 | Method for manufacturing curved photovoltaic component in laminating manner by utilizing high-pressure kettle |
| CN112226169A (en) * | 2020-09-25 | 2021-01-15 | 苏州赛伍应用技术股份有限公司 | Solder strip carrier film, preparation method thereof, solder strip composite body and battery piece composite body |
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| CN101069072A (en) * | 2004-11-30 | 2007-11-07 | 国立大学法人奈良先端科学技术大学院大学 | Method and apparatus for evaluating solar cell and use thereof |
| CN101162742A (en) * | 2007-11-27 | 2008-04-16 | 上海耀华皮尔金顿玻璃股份有限公司 | Solar photovoltaic interlining curtain wall glass manufacturing process |
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| CN101069072A (en) * | 2004-11-30 | 2007-11-07 | 国立大学法人奈良先端科学技术大学院大学 | Method and apparatus for evaluating solar cell and use thereof |
| CN101162742A (en) * | 2007-11-27 | 2008-04-16 | 上海耀华皮尔金顿玻璃股份有限公司 | Solar photovoltaic interlining curtain wall glass manufacturing process |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544167A (en) * | 2012-02-24 | 2012-07-04 | 上饶光电高科技有限公司 | MWT (Metal Wrap-Through) solar cell assembly and manufacturing method thereof |
| CN102779876A (en) * | 2012-08-01 | 2012-11-14 | 保定嘉盛光电科技有限公司 | Full-glass assembly and manufacture method thereof |
| CN102983213A (en) * | 2012-11-16 | 2013-03-20 | 中电电气（南京）光伏有限公司 | Lamination preparation process of curved-surface double-glass photovoltaic module |
| CN102991090A (en) * | 2012-11-16 | 2013-03-27 | 中电电气（南京）光伏有限公司 | Method for manufacturing curved photovoltaic component in laminating manner by utilizing high-pressure kettle |
| CN112226169A (en) * | 2020-09-25 | 2021-01-15 | 苏州赛伍应用技术股份有限公司 | Solder strip carrier film, preparation method thereof, solder strip composite body and battery piece composite body |
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Assignee: Hainan Yingli New Energy Co., Ltd. Assignor: Yingli Energy (China) Co., Ltd. Contract record no.: 2010990000479 Denomination of invention: Method for processing photovoltaic module License type: Exclusive License Open date: 20110706 Record date: 20100630 |
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Application publication date: 20110706 |