CN104827742A - Laminating machine and laminating process of photovoltaic assembly - Google Patents
Laminating machine and laminating process of photovoltaic assembly Download PDFInfo
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- CN104827742A CN104827742A CN201410457263.5A CN201410457263A CN104827742A CN 104827742 A CN104827742 A CN 104827742A CN 201410457263 A CN201410457263 A CN 201410457263A CN 104827742 A CN104827742 A CN 104827742A
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- Prior art keywords
- photovoltaic module
- upper chamber
- laminating machine
- clinoplain
- lamination
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a laminating machine and a laminating process of photovoltaic assemblies and belongs to the technical field of packaging devices of the photovoltaic assemblies. The laminating machine includes an upper chamber, a lower chamber, a vacuum system and a control system, wherein the surface, which is used for allowing the photovoltaic assemblies to place thereon during lamination, of the interior of the lower chamber is an inclined plane. The laminating process comprises following steps: (A) enabling the photovoltaic assemblies to enter the laminating machine; (B) carrying out a step of pre-vacuumizing and pre-heating, in which the upper chamber is subjected to air inflation and air suction for one or more times to enable a silica gel board on the upper chamber to apply an instant pressure onto the photovoltaic assemblies; (C) performing lamination, wherein an upper cover is closed and air inflation and pressure maintenance are carried out to the upper chamber when the vacuum degree and the temperature reach preset values, and then the silica gel board applies the pressure onto the photovoltaic assemblies for a certain time to achieve lamination. The laminating machine and the laminating process are easy to achieve, can effectively improve the assembly packaging quality during the packaging of the photovoltaic assemblies and can increase product qualified rate.
Description
Technical field
The present invention relates to a kind of photovoltaic component encapsulating device and packaging technology, particularly a kind of photovoltaic module laminating machine and laminating technology, belong to photovoltaic component encapsulating equipment technical field.
Background technology
The encapsulation of photovoltaic module is the important component part of photovoltaic module manufacturing process, photovoltaic component encapsulating is by being encapsulated in glass by electricity generation module, chien shih electricity generation module and the extraneous air insulated of encapsulating film and backboard, ensure the realization of its weatherability standard, to account for the crystal silicon component of photovoltaic module maximum ratio, the main flow equipment that encapsulation adopts is laminating machine, by vacuumizing, the air in assembly is extracted out in laminating machine, then heating makes EVA melt battery, glass and backboard bond together, the primary structure of laminating machine is by upper and lower vacuum chamber, silica gel plate, heating system, vacuum system, heating control system, the formations such as control system, during encapsulation, first by cover-plate glass, the crystal-silicon battery slice connected, EVA film, backboard membrane (usually adopting the materials such as TPT or PET) stacks the lower chambers sending into laminating machine, the face that lower chambers puts photovoltaic module is a horizontal plane, heater is provided with below horizontal plane, general employing arranges oil pipe and passes through oil path heating.Generally be divided into the next stage during lamination: when assembly enters laminating machine, lower chambers is inflated, upper chamber's vacuum, after upper cover closes, lower chambers vacuumizes, and simultaneously to device heats, is substantially heated to EVA melt temperature, and upper chamber inflates, the general 5min of this process, pressurize lamination: the vacuum of upper chamber is zero, pressurize lamination a period of time, make EVA crosslinking curing, the solar components encapsulation of current main flow all adopts this technique, the main in process of production product defects of this technique is bubble, because bubble is in assembly use procedure, owing to being subject to the impact of the factor such as temperature rising in illumination and assembly use procedure, bubble can present the trend of extension, under long-term behavior, the EVA at bubble position can with backboard and glass delamination, cause the attacks components such as steam inner, affect assembly to use normally, cause assembly in use power drop even scrap, in large-scale photovoltaic power generation array, the fault of an assembly can form very large resistance in electricity generation system, affect the normal operation of whole electricity generation system, so very strict to the requirement of bubble in component package process, current solar cell package technique is mainly by vacuumizing and exhausting, to vacuum, temperature, the cooperation of the technological parameters such as time requires very high, once there is deviation little on technique or equipment, the generation of air blister defect will be caused.
Summary of the invention
Object of the present invention, for overcoming above-mentioned defect of the prior art, provides a kind of photovoltaic module laminating machine and laminating technology.
For realizing object of the present invention, the technical solution adopted in the present invention is: a kind of photovoltaic module laminating machine, comprise upper chamber, lower chambers, vacuum system, control system, the face of putting the bottom chamber of photovoltaic module during lamination is a clinoplain, this clinoplain and horizontal direction have an angle, during lamination, the placement direction of photovoltaic module is the higher position be in from the end close to lead wire outlet on this clinoplain, and further, described clinoplain and the angle of horizontal direction are 1
o-3
o, further, described clinoplain and the angle of horizontal direction are 1 .5
o-2.5
o.
A kind of photovoltaic module laminating technology, laminating machine is adopted to carry out lamination, described laminating machine comprises upper chamber, lower chambers, vacuum system, control system, the lower chambers face of putting photovoltaic module during lamination is a clinoplain, this clinoplain and horizontal direction have an angle, during lamination, the placement direction of photovoltaic module is the higher position be in from the section close to lead wire outlet in this plane, comprises the following steps:
A: photovoltaic module enters laminating machine, photovoltaic module is transferred to the bottom chamber of laminating machine by transmission system, the face of putting the bottom chamber of photovoltaic module is a clinoplain, this clinoplain and horizontal direction have an angle, and during lamination, the placement direction of photovoltaic module is the higher position be in from the end close to lead wire outlet on this clinoplain;
B: forvacuum warm-up phase, close laminating machine upper cover, vacuum system vacuumizes lower chambers, and heating system heats assembly simultaneously, in this course, upper chamber carries out one or many inflation and bleeds, make the silica gel plate in upper chamber be applied to photovoltaic module instantaneous pressure, this pressure is due to the existence of inclined plane, and assembly first receives short pressure from the end close to lead wire outlet, assembly receives short pressure behind the end away from lead wire outlet;
C: lamination stages; When vacuum and temperature reach setting value, the upper cover that closes inflates pressurize to upper chamber, and silica gel plate certain time applies pressure to assembly and completes component lamination.Further, carry out one or many inflation to upper chamber in described step B to bleed and not carry out higher than when 90 DEG C in temperature, further, carry out one or many inflation to upper chamber in described step B to bleed and not carry out higher than when 75 DEG C in temperature, further, carry out one or many inflation to upper chamber in described step B to bleed, during inflation, the pressure differential of upper chamber and lower chambers controls within 4000Pa, further, carry out one or many inflation to upper chamber in described step B to bleed, duration during inflated condition is no more than 40 seconds.
The positive technique effect that the present invention has is: the present invention has a little gradient putting the lower chambers plane of photovoltaic module, when silica gel plate inflation produces pressure to photovoltaic module, owing to there being the existence of this little gradient, assembly along stressed on laminating machine length direction be asynchronous, end close to lead wire outlet is first stressed, the pressure that this mode can be subject in component internal produces on a timeline from front to back gradually, can be that gas escape forms effective passage in component internal, particularly due to the gas of component internal convex-concave position sealing, can be extruded out under the certain pressure of temperature rise period, because applied pressure is less, time is shorter, inflation also wants extracting vacuum at once after applying pressure, just upper room is inflated after certain hour, so this technique can not have an impact to the solidification of EVA, apply pressure in short-term and also certain homogenization is played to component internal, be conducive to eliminating component internal temperature, the difference of the aspects such as geometric position, because the gradient in the face of the storing assembly in the present invention is very little, the stressed notable difference of assembly fore-and-aft direction can not be caused and produce other package quality problem in pressure maintaining period.Laminating machine provided by the present invention and laminating technology, significantly can be reduced in the generation of air blister defect in solar module encapsulation process, significantly reduce after air blister defect particularly near convergent belt and lead wire outlet adopts the present invention, the present invention easily realizes, be applied in solar components encapsulation and can effectively improve component package quality, improve yields.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Detailed description of the invention
In order to explain enforcement of the present invention more fully, provide embodiment of the present invention, these embodiments are only to elaboration of the present invention, do not limit the scope of the invention.
A kind of photovoltaic module laminating machine, comprise upper chamber, lower chambers, vacuum system, control system, the face of putting the bottom chamber of photovoltaic module during lamination is a clinoplain, this clinoplain and horizontal direction have an angle, during lamination, the placement direction of photovoltaic module is the higher position be in from the end close to lead wire outlet on this clinoplain, further, described clinoplain and the angle of horizontal direction are 1
o-3
o, further, described clinoplain and the angle of horizontal direction are 1 .5
o-2.5
o.
A kind of photovoltaic module laminating technology, laminating machine is adopted to carry out lamination, described laminating machine comprises upper chamber, lower chambers, vacuum system, control system, the lower chambers face of putting photovoltaic module during lamination is a clinoplain, this clinoplain and horizontal direction have an angle, during lamination, the placement direction of photovoltaic module is the higher position be in from the section close to lead wire outlet in this plane, comprises the following steps:
A: photovoltaic module enters laminating machine, photovoltaic module is transferred to the bottom chamber of laminating machine by transmission system, the face of putting the bottom chamber of photovoltaic module is a clinoplain, this clinoplain and horizontal direction have an angle, and during lamination, the placement direction of photovoltaic module is the higher position be in from the end close to lead wire outlet on this clinoplain;
B: forvacuum machine waste heat stage, close laminating machine upper cover, vacuum system vacuumizes lower chambers, and heating system heats assembly simultaneously, in this course, upper chamber carries out one or many inflation and bleeds, make the silica gel plate in upper chamber be applied to photovoltaic module instantaneous pressure, this pressure is due to the existence of inclined plane, and assembly first receives short pressure from the end close to lead wire outlet, assembly receives short pressure behind the end away from lead wire outlet;
C: lamination stages; When vacuum and temperature reach setting value, the upper cover that closes inflates pressurize to upper chamber, and silica gel plate certain time applies pressure to assembly and completes component lamination.Further, carry out one or many inflation to upper chamber in described step B to bleed and not carry out higher than when 90 DEG C in temperature, further, carry out one or many inflation to upper chamber in described step B to bleed and not carry out higher than when 75 DEG C in temperature, further, carry out one or many inflation to upper chamber in described step B to bleed, during inflation, the pressure differential of upper chamber and lower chambers controls within 4000Pa, further, carry out one or many inflation to upper chamber in described step B to bleed, duration during inflated condition is no more than 40 seconds.
The present invention will be further explained by reference to the accompanying drawings, is respectively labeled as in accompanying drawing: 1: lamination body, 2: lower chambers, 3: upper chamber, 4: photovoltaic module, 5: lead wire outlet, 6: photovoltaic module puts face, 7: silica gel plate, 8: vacuum system, as shown in drawings, a kind of photovoltaic module laminating machine, 1 is lamination body, heating system is provided with laminating machine is supporting, control system, top cover lifting system, transmission system, these systems all have configuration on current laminating machine, here repeat no more, 8 are depicted as the vacuum system supporting with laminating machine, vacuum system includes the inflation and exhaust pipe that are communicated to upper chamber 3 and lower chambers 2, various function valve is configured as required in vacuum system, between upper and lower chamber, isolation has silica gel plate 7, it is a clinoplain that the face of the mid-photovoltaic assembly 4 of giving out light of the present invention and photovoltaic module put face 6, in the mill, this clinoplain is without special material, the requirements such as flatness, compared with traditional laminating machine, originally the horizontal plane putting photovoltaic module is changed into the clinoplain of a slight oblique angle, corresponding heating oil pipe and loop are arranged equally, the angle of this clinoplain and horizontal direction is preferably at 1 .5
o-2.5
obetween, during lamination, the placement direction of photovoltaic module 4 is the higher position be in from the end close to lead wire outlet 5 on this clinoplain, figure medium dip plane of the present invention is from the anteriorly bottom-up inclination of laminating machine afterbody, two photovoltaic modulies have been shown in Fig. 1, laminating machine of the present invention can be the laminating machine of lamination four, and arrangement mode is two row two row.Laminating technology of the present invention is: first rely on transmission system to send into laminating machine the photovoltaic module that will encapsulate laid, photovoltaic module 4 is placed in photovoltaic module and puts on face 6, put face 6 due to photovoltaic module and have a little angle of inclination, so photovoltaic module 4 after keeping steady from front to back the absolute altitude at each position be different, after placing, the placement direction of photovoltaic module 4 is the higher position be in from the end close to lead wire outlet 5 on this clinoplain, namely the higher position of absolute altitude is positioned at from the end close to lead wire outlet 5, after photovoltaic module enters laminating machine, close upper cover, at this moment upper chamber is vacuum state, lower chambers starts to bleed, heating system starts heating simultaneously, in laminating technology, this process was at about 5 minutes, at this one-phase, upper chamber is carried out pneumatic compression in traditional laminating technology, one of defect of this technique is if go back inside in assembly have gas, to upper chamber's inflating pressure easily by gas confinement in assembly, gas can not be drawn out of, finally on assembly, form air blister defect.In the present invention, in this course of short duration gas replenishment process is carried out once to upper chamber, inflated condition is no more than 40 seconds, inflate the pressure differential of upper chamber and the lower chambers caused within 4000Pa, then fast pump, carry out within the 3min that this gas replenishment process starts to bleed in upper cover lower chambers of closing, preferably ensure that temperature is not higher than 75 DEG C, when carrying out this technical process, putting face 6 due to photovoltaic module during upper chamber's inflation is a clinoplain, inflatable photovoltaic module 4 is successively subject to an of short duration pressure from front to back in time from from the end close to lead wire outlet, be conducive to the gas of extruding place photovoltaic module inside, and the temperature that at this moment photovoltaic module 4 is own is not high, gas confinement phenomenon can not be formed in inside, this of short duration pressure is to the temperature of photovoltaic module 4 inside, medium, geometry also has homogenizing to a certain degree and repairs optimization function, be conducive to the uniformity strengthening component internal, local stress relieving, can also promote that EVA's is preliminary crosslinked, if vacuum system performance is enough excellent, this of short duration pressure can apply repeatedly, namely the process that multiple fast aeration is bled can be carried out, this technique can comparatively be easy to realize in current laminating machine vacuum system, only need configure corresponding valve, can realize by manually completing, also control system control program can being inserted laminating machine completes automatically, after this process completes, next step is identical with traditional laminating technology, upper chamber is carried out pneumatic compression, after the time reaching setting and temperature, upper chamber's vacuum is to zero, carry out pressurize lamination, starting stressed with the front and rear part of the initial component 4 of pressurize lamination at inflating pressure is also poor if having time on a timeline, the having of this time difference is beneficial to the gas got rid of and discharge in EVA heat cross-linking process in lamination process, discharge and the escape of these gases each provide the time, pressurize laminating temperature is generally set at 120 DEG C-150 DEG C, certain facilitation is had to the crosslinked of EVA in stepb in the present invention, at the laminating temperature of reduction about 3 DEG C that pressurize lamination stages can be suitable.
After detailed description embodiments of the present invention, the personage being familiar with this technology can be well understood to, do not departing under above-mentioned claim and spirit and can carry out various change and amendment, all above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all belong to the scope of technical solution of the present invention, and the present invention is not also limited to the embodiment of example in description.
Claims (8)
1. a photovoltaic module laminating machine, comprise upper chamber, lower chambers, vacuum system, control system, it is characterized in that: the face of putting the bottom chamber of photovoltaic module during lamination is a clinoplain, this clinoplain and horizontal direction have an angle, and during lamination, the placement direction of photovoltaic module is the higher position be in from the end close to lead wire outlet on this clinoplain.
2. a kind of photovoltaic module laminating machine according to claim 1, is characterized in that: described clinoplain and the angle of horizontal direction are 1
o-3
o.
3. a kind of photovoltaic module laminating machine according to claim 1, is characterized in that: described clinoplain and the angle of horizontal direction are 1 .5
o-2.5
o.
4. a photovoltaic module laminating technology, laminating machine is adopted to carry out lamination, described laminating machine comprises upper chamber, lower chambers, vacuum system, control system, the lower chambers face of putting photovoltaic module during lamination is a clinoplain, this clinoplain and horizontal direction have an angle, during lamination, the placement direction of photovoltaic module is the higher position be in from the section close to lead wire outlet in this plane, it is characterized in that: comprise the following steps:
A: photovoltaic module enters laminating machine, photovoltaic module is transferred to the bottom chamber of laminating machine by transmission system, the face of putting the bottom chamber of photovoltaic module is a clinoplain, this clinoplain and horizontal direction have an angle, and during lamination, the placement direction of photovoltaic module is the higher position be in from the end close to lead wire outlet on this clinoplain;
B: forvacuum warm-up phase, close laminating machine upper cover, vacuum system vacuumizes lower chambers, heating system heats assembly simultaneously, and in this course, upper chamber carries out one or many inflation and bleeds, the silica gel plate in upper chamber is made to be applied to photovoltaic module short pressure, this pressure is due to the existence of inclined plane, and assembly first receives short pressure from the end close to lead wire outlet, and assembly receives short pressure behind the end away from lead wire outlet;
C: lamination stages; When vacuum and temperature reach setting value, the upper cover that closes inflates pressurize to upper chamber, and silica gel plate certain time applies pressure to assembly and completes component lamination.
5. a kind of photovoltaic module laminating technology according to claim 4, is characterized in that: carry out one or many inflation to upper chamber in described step B and bleed and not carry out higher than when 90 DEG C in temperature.
6. a kind of photovoltaic module laminating technology according to claim 4, is characterized in that: carry out one or many inflation to upper chamber in described step B and bleed and not carry out higher than when 75 DEG C in temperature.
7. a kind of photovoltaic module laminating technology according to claim 4, is characterized in that: carry out one or many inflation to upper chamber in described step B and bleed, during inflation, the pressure differential of upper chamber and lower chambers controls within 4000Pa.
8. a kind of photovoltaic module laminating technology according to claim 4, is characterized in that: carry out one or many inflation to upper chamber in described step B and bleed, duration during inflated condition is no more than 40 seconds.
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| CN201410457263.5A CN104827742A (en) | 2014-09-10 | 2014-09-10 | Laminating machine and laminating process of photovoltaic assembly |
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| CN201410457263.5A CN104827742A (en) | 2014-09-10 | 2014-09-10 | Laminating machine and laminating process of photovoltaic assembly |
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Cited By (8)
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| CN105470330A (en) * | 2015-11-23 | 2016-04-06 | 浙江昱辉阳光能源江苏有限公司 | Low-cost high-yield solar assembly employing high-efficiency lamination process |
| CN107962851A (en) * | 2017-11-24 | 2018-04-27 | 河北羿珩科技有限责任公司 | Three chamber laminating system of multilayer and its application method |
| CN108269882A (en) * | 2016-12-30 | 2018-07-10 | 阿特斯阳光电力集团有限公司 | A kind of photovoltaic module laminating technology |
| CN109524507A (en) * | 2018-11-28 | 2019-03-26 | 国家电投集团西安太阳能电力有限公司 | The laminating method of solar components |
| CN111347754A (en) * | 2020-03-12 | 2020-06-30 | 成都菲斯特科技有限公司 | Automatic full-laminating device and method for optical projection screen |
| CN111653639A (en) * | 2020-04-29 | 2020-09-11 | 南昌理工学院 | Method for reducing bubbles in photovoltaic dual-glass assembly |
| CN111688326A (en) * | 2020-07-18 | 2020-09-22 | 常州富工机械设备有限公司 | Laminating system and laminating process thereof |
| CN112117348A (en) * | 2019-06-21 | 2020-12-22 | 领凡新能源科技(北京)有限公司 | Laminating machine and laminating machine hollowing method for flexible photovoltaic module |
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| CN111653639A (en) * | 2020-04-29 | 2020-09-11 | 南昌理工学院 | Method for reducing bubbles in photovoltaic dual-glass assembly |
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