CN105047744B - Manufacturing method of solar photovoltaic assembly - Google Patents
Manufacturing method of solar photovoltaic assembly Download PDFInfo
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- CN105047744B CN105047744B CN201510524596.XA CN201510524596A CN105047744B CN 105047744 B CN105047744 B CN 105047744B CN 201510524596 A CN201510524596 A CN 201510524596A CN 105047744 B CN105047744 B CN 105047744B
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention relates to a manufacturing method of a solar photovoltaic assembly. The manufacturing method comprises the following steps that a polytetrafluoroethylene ring is arranged on one surface of a first glass substrate; a first packaging glue layer is laminate on the first glass substrate; a solar cell sheet is laid on a central section of the first packaging glue layer, and a sum of thicknesses of the solar cell sheet and the first packaging glue layer is less than a height of the polytetrafluoroethylene ring; a second packaging glue layer is laminated on the solar cell sheet and a sum of thicknesses of the second packaging glue layer, the solar cell sheet and the first packaging glue layer is greater than the height of the polytetrafluoroethylene ring; a second glass substrate is laminated on the second packaging glue layer so as to obtain a semi-finished product; hot pressing is performed on the semi-finished product and a packaging layer is accommodated in the polytetrafluoroethylene ring so as to obtain a lamination component; the polytetrafluoroethylene ring is removed, a curing glue is filled in and the solar photovoltaic assembly is obtained through curing. By using the above method, a condition that micro bubbles are generated on an edge of the solar photovoltaic assembly can be avoided and the solar photovoltaic assembly possesses good reliability.
Description
Technical field
The present invention relates to field of solar energy, more particularly to a kind of preparation method of solar photovoltaic assembly.
Background technology
Double glass photovoltaic module technologies are going into one and develop rapidly period at present, and conversion of the people to photovoltaic module is imitated
The dual requirementses of rate and reliability have promoted the continuous progress of solar double-glass assemblies technology.However, current solar double-glass assemblies had been laminated
Due to there is wall and corner effect in journey, the corner of photovoltaic module can be caused micro-bubble occur, cause the yield rate of photovoltaic module low,
It is difficult to the problem of mass production;In addition, current photovoltaic module is easily permeable, the internal circuit of photovoltaic module is caused to have rotten
The risk of erosion, affects the reliability of photovoltaic module.
The content of the invention
Based on this, it is necessary to provide a kind of preparation method of solar photovoltaic assembly, the preparation method can avoid the sun
There is micro-bubble and solar photovoltaic assembly can be made to have preferable reliability in the edge of energy photovoltaic module.
A kind of preparation method of solar photovoltaic assembly, comprises the steps:
On a surface of the first glass substrate, polytetrafluoroethylene ring is set so that first glass substrate with it is described
Polytetrafluoroethylene ring cooperatively forms a host cavity jointly;
The stacking first on first glass substrate encapsulates glue-line, and the first encapsulation glue-line is contained in described poly- four
In fluorothene ring;
In the middle part laying solar battery sheet of the described first encapsulation glue-line, and the solar battery sheet be contained in it is described
In polytetrafluoroethylene ring, the solar battery sheet is less than the politef with the thickness sum of the described first encapsulation glue-line
The height of ring;
The stacking second on the solar battery sheet encapsulates glue-line, and makes the solar battery sheet be located at described second
The middle part of encapsulation glue-line, the thickness sum of the second encapsulation glue-line, the solar battery sheet and the first encapsulation glue-line
More than the height of the polytetrafluoroethylene ring;
In folded second glass substrate in the described second encapsulation glue-line upper strata, semi-finished product are obtained;
By the semi-finished product hot pressing, so that second glass substrate is towards the direction fortune near first glass substrate
It is dynamic, and the first encapsulation glue-line and the described second encapsulation glue-line deforming contact are made, and cross-linked polymeric occurs and is formed with receipts
Hold the encapsulated layer of the containing cavity of the solar battery sheet, until second glass substrate and the polytetrafluoroethylene ring away from
One end of first glass substrate offsets, and the polytetrafluoroethylene ring prevents second glass substrate from continuing towards near institute
The direction motion of the first glass substrate is stated, the encapsulated layer is contained in the polytetrafluoroethylene ring, obtains laminate;And
The polytetrafluoroethylene ring is removed, and ring is formed between first glass substrate and second glass substrate
Around the groove of the encapsulated layer, solidification glue is filled in the groove, cured, the solidification glue, first glass substrate
Coordinate jointly the collecting encapsulated layer with second glass substrate, obtain solar photovoltaic assembly.
Wherein in one embodiment, the polytetrafluoroethylene ring is set on a surface of first glass substrate
The step of be specially:Politef bar is set for one week at the edge on a surface of first glass substrate, and is made described
Politef bar joins end to end to form the ring body of a closing.
Wherein in one embodiment, the outer surface of the polytetrafluoroethylene ring is flat with the side of first glass substrate
Together.
Wherein in one embodiment, the temperature during semi-finished product hot pressing is 135~145 DEG C.
Wherein in one embodiment, will be carried out the step of the semi-finished product hot pressing under vacuum, and vacuum
Degree is below -0.015MPa.
Wherein in one embodiment, the pressure during semi-finished product hot pressing is 0.03~0.05MPa, and hot pressing time is 5
~15 minutes.
Wherein in one embodiment, the thickness of the first encapsulation glue-line is 0.4~0.8 millimeter, second encapsulation
The thickness of glue-line is 0.4~0.8 millimeter, and the thickness of the solar battery sheet is 190~210 microns, the politef
The height of ring is 0.5~1.5 millimeter.
Wherein in one embodiment, the solidification glue is butyl rubber.
Wherein in one embodiment, it is described first encapsulation glue-line and it is described second encapsulation glue-line material be it is uncrosslinked
Ethylene-vinyl acetate copolymer.
Wherein in one embodiment, in shapes and sizes and the polytetrafluoroethylene ring of the first encapsulation glue-line
The shapes and sizes of the figure surrounded by surface are consistent, the shapes and sizes and the politef of the second encapsulation glue-line
The shapes and sizes of the figure surrounded by the inner surface of ring are consistent.
The preparation method of above-mentioned solar photovoltaic assembly is simple to operate, it is easy to industrialized production.And above-mentioned photovoltaic
The preparation method of component arranged polytetrafluoroethylene ring on the first glass substrate before the first encapsulation glue-line is formed, and made first
Encapsulation glue-line is housed in polytetrafluoroethylene ring, and the second packaging plastic is laminated on the first encapsulation glue-line, after hot pressing layer by layer, and first
Encapsulation glue-line and the second encapsulation glue-line form the encapsulated layer with the containing cavity for housing solar battery sheet, and the encapsulated layer is housed
In intracavity is housed, when polytetrafluoroethylene ring is removed, formed around encapsulated layer between the first glass substrate and the second glass substrate
The groove of one week, injects solidification glue in this groove so that solidification glue around encapsulated layer one week, it is cured after, solidification glue is fine
Wrap encapsulated layer, and solidification glue is closely connected with the first glass substrate and the second glass substrate, i.e. the first glass base
Plate, the second glass substrate and polytetrafluoroethylene ring coordinate collecting encapsulated layer jointly, so as to protect the solar-electricity of inside well
Pond piece, prevents steam from entering in solar photovoltaic assembly so that above-mentioned solar photovoltaic assembly has preferable reliability;Together
When, by polytetrafluoroethylene ring was arranged on the first glass substrate before the first encapsulation glue-line is formed, and make the first packaging plastic
Layer is housed in polytetrafluoroethylene ring, in the middle part laying solar battery sheet of the first encapsulation glue-line, on solar battery sheet
Stacking second encapsulates glue-line, and solar battery sheet also is located in the second encapsulated layer, and the second encapsulation glue-line, solar battery sheet
It is more than the height of polytetrafluoroethylene ring with the thickness sum of the first encapsulation glue-line, in hot pressing, the second glass substrate court leans on
, due to being acted on by hot pressing, deformation connects for the direction motion of nearly first glass substrate, the first encapsulation glue-line and the second encapsulation glue-line
Cross-linked polymeric is touched and occurs, when the second glass substrate is offseted away from one end of the first glass substrate with polytetrafluoroethylene ring,
Due to the barrier effect of polytetrafluoroethylene ring, the second glass substrate is prevented to continue towards the direction motion near the first glass substrate,
The encapsulated layer that the first encapsulation glue-line and the second encapsulation glue-line are formed can not only be made to be housed in polytetrafluoroethylene ring, additionally it is possible to make
First encapsulation glue-line and the second encapsulation glue-line uniform force, prevent the edge of encapsulated layer from micro-bubble occur, so as to avoid directly
The edge discontinuity of semi-finished product caused by hot pressing and the edge of encapsulated layer that causes produce the problem of micro-bubble.
Description of the drawings
Fig. 1 is the flow chart of the preparation method of the solar photovoltaic assembly of an embodiment;
Polytetrafluoroethylene ring is provided with the step of Fig. 2 is the preparation method of the solar photovoltaic assembly shown in Fig. 1 S110
The first glass substrate structural representation;
The exploded view of the semi-finished product in the step of Fig. 3 is the preparation method of the solar photovoltaic assembly shown in Fig. 1 S150;
Fig. 4 is the structural representation of solar photovoltaic assembly prepared by the preparation method of the solar photovoltaic assembly shown in Fig. 1
Figure;
Fig. 5 is the profile of the solar photovoltaic assembly shown in Fig. 4.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the preferred embodiment of the present invention.But, the present invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more saturating
It is thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technology used herein and scientific terminology and the technical field for belonging to the present invention
The implication that technical staff is generally understood that is identical.The term for being used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that of the invention in limiting.Term as used herein " and/or " including one or more phases
The arbitrary and all of combination of the Listed Items of pass.
As shown in figure 1, the preparation method of the solar photovoltaic assembly of an embodiment, comprises the steps:
Step S110:Polytetrafluoroethylene ring is set on a surface of the first glass substrate, so that the first glass substrate
A host cavity is cooperatively formed jointly with polytetrafluoroethylene ring.
Wherein, the first glass substrate is armorplate glass.The thickness of the first glass substrate is 1 millimeter~5 millimeters.
Specifically, it is specially the step of setting polytetrafluoroethylene ring on a surface of the first glass substrate:First
The edge on one surface of glass substrate arranges politef bar in one week, and makes politef bar join end to end to form an envelope
The ring body closed.More specifically, polytetrafluoroethylene ring is formed after being joined end to end by multiple politef bars.By with polytetrafluoroethyl-ne
Alkene bar forms polytetrafluoroethylene ring, is conducive to the removal of follow-up polytetrafluoroethylene ring.
Wherein, the characteristics of politef has antiacid alkali resistant, resists various organic solvents, is practically insoluble in all of molten
Agent.Meanwhile, politef has resistant to elevated temperatures feature, and has preferable lubricity and non-adhesiveness, is conducive to follow-up step
The removal of polytetrafluoroethylene ring in rapid.
Further, the outer surface of polytetrafluoroethylene ring is concordant with the side of the first glass substrate.And polytetrafluoroethylene ring
Side wall thickness be 5~30 millimeters.
Further, the height of polytetrafluoroethylene ring is 0.5~1.5 millimeter.
As shown in Figure 2, it is illustrated that embodiment in the first glass substrate 210 on be provided with polytetrafluoroethylene ring 300, it is and poly-
Tetrafluoroethene ring 300 and the first glass substrate 210 cooperatively form host cavity 400 jointly.Wherein, the first glass substrate 210 is side
Shape tabular.Polytetrafluoroethylene ring 300 is formed after being joined end to end by four politef bars.
Further, before the step of polytetrafluoroethylene ring being set on a surface of the first glass substrate, also include
The step of anti-reflection film is formed on the first glass substrate, polytetrafluoroethylene ring is arranged on the first glass substrate away from the one of anti-reflection film
On individual surface.Wherein, anti-reflection film is titanium dioxide film or silicon dioxide film.And the thickness of anti-reflection film is 90~110 nanometers.
Step S120:The stacking first on the first glass substrate encapsulates glue-line, and the first encapsulation glue-line is contained in polytetrafluoro
In ethylene ring.
Wherein, the material of the first encapsulation glue-line is uncrosslinked ethylene-vinyl acetate copolymer.The thickness of the first encapsulated layer
Spend for 0.4~0.8 millimeter.
Specifically, the shape of the first encapsulation glue-line is consistent with the shape of the surrounded figure of the inner surface of polytetrafluoroethylene ring.
Wherein, the distance between inner surface of the first encapsulation glue-line and polytetrafluoroethylene ring is below 4 millimeters.Preferably, the first encapsulation
The size of glue-line is in the same size with the surrounded figure of the inner surface of polytetrafluoroethylene ring.
Step S130:First encapsulation glue-line middle part laying solar battery sheet, and solar battery sheet be contained in it is poly-
In tetrafluoroethene ring, the thickness sum of solar battery sheet and the first encapsulation glue-line is less than the height of polytetrafluoroethylene ring.
Wherein, solar battery sheet is for multiple, and the series connection of multiple solar battery sheets.Multiple solar battery sheets are put down successively
It is layered on the first encapsulation glue-line.It is appreciated that the number and annexation of solar battery sheet can be adjusted as needed.
Wherein, the thickness of solar battery sheet is 190~210 microns.
Step S140:The stacking second on solar battery sheet encapsulates glue-line, and makes solar battery sheet be located at the second envelope
The middle part of dress glue-line, the thickness sum of the second encapsulation glue-line, solar battery sheet and the first encapsulation glue-line are more than politef
The height of ring.
By making the thickness sum of solar battery sheet and the first encapsulation glue-line less than the height of polytetrafluoroethylene ring, second
Height of the thickness sum of encapsulation glue-line, solar battery sheet and the first encapsulation glue-line more than polytetrafluoroethylene ring, so that second
Encapsulation adhesive tape sections are contained in polytetrafluoroethylene ring.
Specifically, the shape of the second encapsulation glue-line is consistent with the shape of the surrounded figure of the inner surface of polytetrafluoroethylene ring.
Wherein, the distance between inner surface of the second encapsulation glue-line and polytetrafluoroethylene ring is below 4 millimeters.Preferably, the second encapsulation
The size of glue-line is in the same size with the surrounded figure of the inner surface of polytetrafluoroethylene ring.
Specifically, the thickness of the second encapsulation glue-line is 0.4~0.8 millimeter.
Step S150:In folded second glass substrate in the second encapsulation glue-line upper strata, semi-finished product are obtained.
Now, the second glass substrate is not contacted with polytetrafluoroethylene ring.
Wherein, the second glass substrate is armorplate glass.The thickness of the second glass substrate is 1~5 millimeter.Specifically,
The size of two glass substrates is equal in magnitude with the first glass substrate.
As shown in figure 3, Fig. 3 is the exploded view of semi-finished product, on the first glass substrate 210, polytetrafluoroethylene ring 300 is provided with,
First encapsulation glue-line 220, the encapsulation glue-line 240 of solar battery sheet 230, second and the second glass substrate 250 are stacked gradually in the
On one glass substrate 210.And second glass substrate 250 away from second encapsulation glue-line 240 surface on be formed with anti-reflection film 260.
Step S160:By semi-finished product hot pressing, so that the second glass substrate is towards the direction motion near the first glass substrate, and
The first encapsulation glue-line and the second encapsulation glue-line deforming contact are made, and cross-linked polymeric is occurred and is formed with collecting solar battery sheet
Containing cavity encapsulated layer, until the one end of the second glass substrate with polytetrafluoroethylene ring away from the first glass substrate offsets,
Polytetrafluoroethylene ring prevents the second glass substrate from continuing towards the direction motion near the first glass substrate, and is contained in encapsulated layer
In polytetrafluoroethylene ring, laminate is obtained.
In semi-finished product hot pressing, towards moving near the direction of the first glass substrate, first encapsulates the second glass substrate
Glue-line and the second encapsulation glue-line due to being acted on by hot pressing, deforming contact, and cross-linked polymeric occurs, when the second glass substrate and
When polytetrafluoroethylene ring is abutted against away from one end of the first glass substrate, due to the barrier effect of polytetrafluoroethylene ring, the is prevented
Two glass substrates continue towards moving near the direction of the first glass substrate, can not only make the first encapsulation glue-line and the second packaging plastic
The encapsulated layer that layer is formed is housed in polytetrafluoroethylene ring, additionally it is possible to make the first encapsulation glue-line and the second encapsulation glue-line stress equal
It is even, prevent the edge of encapsulated layer from micro-bubble occur.
, after hot pressing, the second glass substrate is with polytetrafluoroethylene ring away from one end of the first glass substrate for semi-finished product
Contact, and cover opening of the polytetrafluoroethylene ring away from one end of the first glass substrate.And relative two surface of encapsulated layer
Closely it is bonded together with the first glass substrate and the second glass substrate respectively.
Wherein, temperature during semi-finished product hot pressing is 135~145 DEG C.
Wherein, will be carried out the step of semi-finished product hot pressing under vacuum, and vacuum is below -0.015MPa.
Wherein, pressure during semi-finished product hot pressing is 0.03~0.05MPa, and hot pressing time is 5~15 minutes.
Step S170:Polytetrafluoroethylene ring is removed, and is formed between the first glass substrate and the second glass substrate and is surround
The groove of encapsulated layer, fills solidification glue in groove, cured, and solidification glue, the first glass substrate and the second glass substrate are common
Coordinate and house encapsulated layer, obtain solar photovoltaic assembly.
Wherein, solidification glue can be silica gel, butyl rubber etc., preferably butyl rubber.
See also Figure 4 and 5, it is illustrated that embodiment be using above-mentioned solar photovoltaic assembly preparation method prepare
A kind of solar photovoltaic assembly 10 for obtaining, encapsulated layer 270 and the second glass substrate 250 are stacked gradually in the first glass substrate
On 210;Solidification glue 280 is around encapsulated layer 270 1 weeks, solidification glue 280 and the first glass substrate 210 and the second glass substrate 250
Closely connect, solidification glue 280, the first glass substrate 210 and the 250 common cooperation of the second glass substrate house encapsulated layer 270.Envelope
Dress layer 270 has the host cavity 272 for housing solar battery sheet 230.
The preparation method of above-mentioned solar photovoltaic assembly is simple to operate, it is easy to industrialized production.And above-mentioned photovoltaic
The preparation method of component arranged polytetrafluoroethylene ring on the first glass substrate before the first encapsulation glue-line is formed, and made first
Encapsulation glue-line is housed in polytetrafluoroethylene ring, and the second packaging plastic is laminated on the first encapsulation glue-line, after hot pressing layer by layer, and first
Encapsulation glue-line and the second encapsulation glue-line form the encapsulated layer with the containing cavity for housing solar battery sheet, and the encapsulated layer is housed
In intracavity is housed, when polytetrafluoroethylene ring is removed, formed around encapsulated layer between the first glass substrate and the second glass substrate
The groove of one week, injects solidification glue in this groove so that solidification glue around encapsulated layer one week, it is cured after, solidification glue is fine
Wrap encapsulated layer, and solidification glue is closely connected with the first glass substrate and the second glass substrate, i.e. the first glass base
Plate, the second glass substrate and polytetrafluoroethylene ring coordinate collecting encapsulated layer jointly, so as to protect the solar-electricity of inside well
Pond piece, prevents steam from entering in solar photovoltaic assembly so that above-mentioned solar photovoltaic assembly has preferable reliability;Together
When, by polytetrafluoroethylene ring was arranged on the first glass substrate before the first encapsulation glue-line is formed, and make the first packaging plastic
Layer is housed in polytetrafluoroethylene ring, in the middle part laying solar battery sheet of the first encapsulation glue-line, on solar battery sheet
Stacking second encapsulates glue-line, and solar battery sheet also is located in the second encapsulated layer, and the second encapsulation glue-line, solar battery sheet
It is more than the height of polytetrafluoroethylene ring with the thickness sum of the first encapsulation glue-line, in hot pressing, the second glass substrate court leans on
, due to being acted on by hot pressing, deformation connects for the direction motion of nearly first glass substrate, the first encapsulation glue-line and the second encapsulation glue-line
Cross-linked polymeric is touched and occurs, when the second glass substrate is offseted away from one end of the first glass substrate with polytetrafluoroethylene ring,
Due to the barrier effect of polytetrafluoroethylene ring, the second glass substrate is prevented to continue towards the direction motion near the first glass substrate,
The encapsulated layer that the first encapsulation glue-line and the second encapsulation glue-line are formed can not only be made to be housed in polytetrafluoroethylene ring, additionally it is possible to make
First encapsulation glue-line and the second encapsulation glue-line uniform force, prevent the edge of encapsulated layer from micro-bubble occur, so as to avoid directly
The edge discontinuity of semi-finished product caused by hot pressing and the edge of encapsulated layer that causes produce the problem of micro-bubble.
It is below specific embodiment part:
Embodiment 1
The preparation process of the solar photovoltaic assembly of the present embodiment is as follows:
(1) on a surface of the first glass substrate that thickness is 3 millimeters, formation thickness is 100 nanometers of silicon dioxide
Anti-reflection film, arranges politef bar in one week at the edge on another surface of the first glass substrate, forms the polytetrafluoro of closing
Ethylene ring, and the polytetrafluoroethylene ring and the first glass substrate cooperatively form a host cavity jointly.Wherein, polytetrafluoroethylene ring
It highly it is 1 millimeter, the thickness of the side wall of polytetrafluoroethylene ring is 20 millimeters, and the first glass substrate is tempering substrate.
(2) on the first glass substrate, stacking first encapsulates glue-line, and the first encapsulation glue-line is contained in polytetrafluoroethylene ring
It is interior.Wherein, the material of the first encapsulation glue-line is uncrosslinked ethylene-vinyl acetate copolymer, and first encapsulates the thickness of glue-line
For 0.6 millimeter, the shape of the first encapsulation glue-line is consistent with the shape of the figure surrounded by the inner surface of polytetrafluoroethylene ring, and the
The distance between inner surface of one encapsulation glue-line and polytetrafluoroethylene ring is below 4 millimeters.
(3) in the middle part laying solar battery sheet of the first encapsulation glue-line, solar battery sheet is contained in politef
In ring.And the thickness of solar battery sheet is 200 microns.
(4) on solar battery sheet, stacking thickness is 0.6 millimeter of the second encapsulation glue-line, and makes solar battery sheet position
The shape of the figure surrounded with the inner surface of polytetrafluoroethylene ring in the middle part of the second encapsulation glue-line, the shape of the second encapsulation glue-line
Shape is consistent, and the distance between the second encapsulation glue-line and inner surface of polytetrafluoroethylene ring are below 4 millimeters.Wherein, the second envelope
The material of dress glue-line is uncrosslinked ethylene-vinyl acetate copolymer.
(5) in folded second glass substrate in the second encapsulation glue-line upper strata, semi-finished product are obtained.Wherein, the second glass substrate is steel
Change glass plate, the thickness of the second glass substrate is 3 millimeters.
(6) under conditions of vacuum is -0.015MPa, by semi-finished product in 140 DEG C of hot pressing 1 minute, pressure is
0.04MPa, in hot pressing, the second glass substrate is towards the direction motion near the first glass substrate, and makes the first packaging plastic
Layer and the second encapsulation glue-line deforming contact, and cross-linked polymeric occurs and the envelope with the containing cavity for housing solar battery sheet is formed
Dress layer, until the one end of the second glass substrate with polytetrafluoroethylene ring away from the first glass substrate offsets, polytetrafluoroethylene ring
Prevent the second glass substrate from continuing towards the direction motion near the first glass substrate, and make encapsulated layer be contained in polytetrafluoroethylene ring
It is interior, obtain laminate.
(7) polytetrafluoroethylene ring is removed, and is formed around encapsulated layer between the first glass substrate and the second glass substrate
Groove, butyl rubber is filled in groove, cured, butyl rubber was around encapsulated layer one week, and butyl rubber and the first glass substrate
Closely connect with second substrate, solidification glue, the first glass substrate and the second glass substrate coordinate collecting encapsulated layer jointly, obtain
Solar photovoltaic assembly.
The bubble situation of the encapsulated layer of laminate is obtained after observation the present embodiment hot pressing.
Tested the permeable situation of the solar photovoltaic assembly of the present embodiment using double 85 environmental test chambers, test condition is
85 DEG C of temperature, humidity 85%, 3000 hours testing times.During in the preparation of solar photovoltaic assembly, in solar-electricity
A water-indicating paper is placed on the piece of pond, the two ends of water-indicating paper are clamped between the first encapsulation glue-line and the second encapsulation glue-line, width
10mm, after the completion of the test of above-mentioned test environment, water-indicating paper discoloration can just react the permeable situation of solar photovoltaic assembly.
The situation of the permeable situation and bubble of the solar photovoltaic assembly of the present embodiment is shown in Table 1.
Embodiment 2
The preparation process of the solar photovoltaic assembly of the present embodiment is as follows:
(1) on a surface of the first glass substrate that thickness is 1 millimeter, formation thickness is 90 nanometers of silicon dioxide
Anti-reflection film, arranges politef bar in one week at the edge on another surface of the first glass substrate, forms the polytetrafluoro of closing
Ethylene ring, and the polytetrafluoroethylene ring and the first glass substrate cooperatively form a host cavity jointly.Wherein, polytetrafluoroethylene ring
It highly it is 0.5 millimeter, the thickness of the side wall of polytetrafluoroethylene ring is 5 millimeters, and the first glass substrate is tempering substrate.
(2) on the first glass substrate, stacking first encapsulates glue-line, and the first encapsulation glue-line is contained in polytetrafluoroethylene ring
It is interior.Wherein, the material of the first encapsulation glue-line is uncrosslinked ethylene-vinyl acetate copolymer, and first encapsulates the thickness of glue-line
For 0.4 millimeter, the shape of the first encapsulation glue-line is consistent with the shape of the figure surrounded by the inner surface of polytetrafluoroethylene ring, and the
The distance between inwall of one encapsulation glue-line and polytetrafluoroethylene ring is below 4 millimeters.
(3) in the middle part laying solar battery sheet of the first encapsulation glue-line, solar battery sheet is contained in politef
In ring.And the thickness of solar battery sheet is 190 microns.
(4) on solar battery sheet, stacking thickness is 0.4 millimeter of the second encapsulation glue-line, and makes solar battery sheet position
The shape of the figure surrounded with the inner surface of polytetrafluoroethylene ring in the middle part of the second encapsulation glue-line, the shape of the second encapsulation glue-line
Shape is consistent, and the distance between the second encapsulation glue-line and inner surface of polytetrafluoroethylene ring are below 4 millimeters.Wherein, the second envelope
The material of dress glue-line is uncrosslinked ethylene-vinyl acetate copolymer.
(5) in folded second glass substrate in the second encapsulation glue-line upper strata, semi-finished product are obtained.Wherein, the second glass substrate is steel
Change glass plate.The thickness of the second glass substrate is 1 millimeter.
(6) under conditions of vacuum is -0.030MPa, by semi-finished product in 135 DEG C of hot pressing 15 minutes, pressure is
0.05MPa, in hot pressing, the second glass substrate is towards the direction motion near the first glass substrate, and makes the first packaging plastic
Layer and the second encapsulation glue-line deforming contact, and cross-linked polymeric occurs and the envelope with the containing cavity for housing solar battery sheet is formed
Dress layer, until the one end of the second glass substrate with polytetrafluoroethylene ring away from the first glass substrate offsets, polytetrafluoroethylene ring
Prevent the second glass substrate from continuing towards the direction motion near the first glass substrate, and make encapsulated layer be contained in polytetrafluoroethylene ring
It is interior, obtain laminate.
(7) polytetrafluoroethylene ring is removed, and is formed around encapsulated layer between the first glass substrate and the second glass substrate
Groove, butyl rubber is filled in groove, cured, butyl rubber was around encapsulated layer one week, and butyl rubber and the first glass substrate
Closely connect with second substrate, solidification glue, the first glass substrate and the second glass substrate coordinate collecting encapsulated layer jointly, obtain
Solar photovoltaic assembly.
Using 1 identical method of testing of embodiment, the permeable situation for obtaining the solar photovoltaic assembly of the present embodiment is gentle
The situation of bubble is shown in Table 1.
Embodiment 3
The preparation process of the solar photovoltaic assembly of the present embodiment is as follows:
(1) on a surface of the first glass substrate that thickness is 5 millimeters, formation thickness is 110 nanometers of silicon dioxide
Anti-reflection film, arranges politef bar in one week at the edge on another surface of the first glass substrate, forms the polytetrafluoro of closing
Ethylene ring, and the polytetrafluoroethylene ring and the first glass substrate cooperatively form a host cavity jointly.Wherein, polytetrafluoroethylene ring
It highly it is 1.5 millimeters, the thickness of the side wall of polytetrafluoroethylene ring is 30 millimeters, and the first glass substrate is tempering substrate.
(2) on the first glass substrate, stacking first encapsulates glue-line, and the first encapsulation glue-line is contained in polytetrafluoroethylene ring
It is interior.Wherein, the material of the first encapsulation glue-line is uncrosslinked ethylene-vinyl acetate copolymer, and first encapsulates the thickness of glue-line
For 0.8 millimeter, the shape of the first encapsulation glue-line is consistent with the shape of the figure surrounded by the inner surface of polytetrafluoroethylene ring, and the
The distance between inner surface of one encapsulation glue-line and polytetrafluoroethylene ring is below 4 millimeters.
(3) in the middle part laying solar battery sheet of the first encapsulation glue-line, solar battery sheet is contained in politef
In ring.And the thickness of solar battery sheet is 210 microns.
(4) on solar battery sheet, stacking thickness is 0.8 millimeter of the second encapsulation glue-line, and makes solar battery sheet position
The shape of the figure surrounded with the inner surface of polytetrafluoroethylene ring in the middle part of the second encapsulation glue-line, the shape of the second encapsulation glue-line
Shape is consistent, and the distance between the second encapsulation glue-line and inner surface of polytetrafluoroethylene ring are below 4 millimeters.Wherein, the second envelope
The material of dress glue-line is uncrosslinked ethylene-vinyl acetate copolymer.
(5) in folded second glass substrate in the second encapsulation glue-line upper strata, semi-finished product are obtained.Wherein, the second glass substrate is steel
Change glass plate.The thickness of the second glass substrate is 5 millimeters.
(6) under conditions of vacuum is -0.020MPa, by semi-finished product in 145 DEG C of hot pressing 5 minutes, pressure is
0.03MPa, in hot pressing, the second glass substrate is towards the direction motion near the first glass substrate, and makes the first packaging plastic
Layer and the second encapsulation glue-line deforming contact, and cross-linked polymeric occurs and the envelope with the containing cavity for housing solar battery sheet is formed
Dress layer, until the one end of the second glass substrate with polytetrafluoroethylene ring away from the first glass substrate offsets, polytetrafluoroethylene ring
Prevent the second glass substrate from continuing towards the direction motion near the first glass substrate, and make encapsulated layer be contained in polytetrafluoroethylene ring
It is interior, obtain laminate.
(7) polytetrafluoroethylene ring is removed, and is formed around encapsulated layer between the first glass substrate and the second glass substrate
Groove, the filling gel in the groove is cured, and falope ring was around encapsulated layer one week, and silica gel and the first glass substrate and second
Substrate closely connects, and solidification glue, the first glass substrate and the second glass substrate coordinate collecting encapsulated layer jointly, obtain solar energy
Photovoltaic module.
Using 1 identical method of testing of embodiment, the permeable situation for obtaining the solar photovoltaic assembly of the present embodiment is gentle
The situation of bubble is shown in Table 1.
Comparative example 1
The preparation process of the solar photovoltaic assembly of comparative example 1 is as follows:
(1) thickness is laminated on the first glass substrate that thickness is 3 millimeters encapsulate glue-line, and the first encapsulation glue-line for first
Size and the first glass substrate consistent size;Wherein, the material of the first encapsulation glue-line is uncrosslinked ethene-vinyl acetate
Ester copolymer.
(2) in the middle part laying solar battery sheet of the first encapsulation glue-line.And the thickness of solar battery sheet is 200 micro-
Rice.
(3) on solar battery sheet, stacking thickness is 0.6 millimeter of the second encapsulation glue-line, and makes solar battery sheet position
In the middle part of the second encapsulation glue-line, wherein, the material of the second encapsulation glue-line is uncrosslinked ethylene-vinyl acetate copolymer.
(4) in folded second glass substrate in the second encapsulation glue-line upper strata, semi-finished product are obtained.Wherein, the second glass substrate is steel
Change glass plate, the thickness of the second glass substrate is 3 millimeters.
(5) under conditions of vacuum is -0.015MPa, by semi-finished product in 140 DEG C of hot pressing 1 minute, pressure is
0.04MPa, in hot pressing, the second glass substrate and the first glass substrate move toward one another, and make the first encapsulation glue-line and
Two encapsulation glue-line deforming contacts, and cross-linked polymeric occurs and the encapsulated layer with the containing cavity for housing solar battery sheet is formed,
Obtain solar photovoltaic assembly.
Using 1 identical method of testing of embodiment, the permeable situation for obtaining the solar photovoltaic assembly of the present embodiment is gentle
The situation of bubble is shown in Table 1.
Table 1 is the permeable situation and the situation of bubble of the solar photovoltaic assembly of embodiment 1~3 and comparative example 1.
Table 1
From table 1 it follows that there is faint permeable phenomenon, and no gas in the solar photovoltaic assembly of embodiment 1~3
Bubble.And inside the solar photovoltaic assembly of comparative example 1, whole is permeable serious and there is bubble phenomenon.Obviously, embodiment 1~3 is made
Standby solar photovoltaic assembly has preferable waterproof effect, more reliably, and encapsulates in being effectively prevented from lamination process
The edge of layer produces bubble.
Each technical characteristic of embodiment described above arbitrarily can be combined, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore can not be construed as limiting the scope of the patent.It should be pointed out that for one of ordinary skill in the art comes
Say, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (9)
1. a kind of preparation method of solar photovoltaic assembly, it is characterised in that comprise the steps:
Polytetrafluoroethylene ring is set on a surface of the first glass substrate, so that first glass substrate and described poly- four
Fluorothene ring cooperatively forms a host cavity jointly;
The stacking first on first glass substrate encapsulates glue-line, and the first encapsulation glue-line is contained in the polytetrafluoroethyl-ne
In alkene ring;
In the middle part laying solar battery sheet of the described first encapsulation glue-line, and the solar battery sheet is contained in described poly- four
In fluorothene ring, the solar battery sheet is less than the polytetrafluoroethylene ring with the thickness sum of the described first encapsulation glue-line
Highly;
The stacking second on the solar battery sheet encapsulates glue-line, and makes the solar battery sheet positioned at the described second encapsulation
The middle part of glue-line, the thickness sum of the second encapsulation glue-line, the solar battery sheet and the first encapsulation glue-line are more than
The height of the polytetrafluoroethylene ring;
In folded second glass substrate in the described second encapsulation glue-line upper strata, semi-finished product are obtained;
By the semi-finished product hot pressing, so that second glass substrate is towards the direction motion near first glass substrate, and
The first encapsulation glue-line and the described second encapsulation glue-line deforming contact are made, and cross-linked polymeric is occurred and is formed described with housing
The encapsulated layer of the containing cavity of solar battery sheet, until second glass substrate and the polytetrafluoroethylene ring are away from described the
One end of one glass substrate offsets, and the polytetrafluoroethylene ring prevents second glass substrate from continuing towards close described first
The direction motion of glass substrate, and the encapsulated layer is contained in the polytetrafluoroethylene ring, obtain laminate;And
The polytetrafluoroethylene ring is removed, and is formed around institute between first glass substrate and second glass substrate
The groove of encapsulated layer is stated, and solidification glue is filled in the groove, cured, the solidification glue, first glass substrate and institute
State the second glass substrate and coordinate jointly the collecting encapsulated layer, obtain solar photovoltaic assembly;
The step of polytetrafluoroethylene ring is arranged on a surface of first glass substrate is specially:Described first
The edge on one surface of glass substrate arranges politef bar in one week, and makes the politef bar join end to end to be formed
The ring body of one closing.
2. the preparation method of solar photovoltaic assembly according to claim 1, it is characterised in that the polytetrafluoroethylene ring
Outer surface it is concordant with the side of first glass substrate.
3. the preparation method of solar photovoltaic assembly according to claim 1, it is characterised in that during the semi-finished product hot pressing
Temperature be 135~145 DEG C.
4. the preparation method of solar photovoltaic assembly according to claim 1, it is characterised in that by the semi-finished product hot pressing
The step of carry out under vacuum, and vacuum is below -0.015MPa.
5. the preparation method of solar photovoltaic assembly according to claim 1, it is characterised in that during the semi-finished product hot pressing
Pressure be 0.03~0.05MPa, hot pressing time be 5~15 minutes.
6. the preparation method of solar photovoltaic assembly according to claim 1, it is characterised in that the first encapsulation glue-line
Thickness be 0.4~0.8 millimeter, it is described second encapsulation glue-line thickness be 0.4~0.8 millimeter, the solar battery sheet
Thickness is 190~210 microns, and the height of the polytetrafluoroethylene ring is 0.5~1.5 millimeter.
7. the preparation method of solar photovoltaic assembly according to claim 1, it is characterised in that the solidification glue is butyl
Glue.
8. the preparation method of solar photovoltaic assembly according to claim 1, it is characterised in that the first encapsulation glue-line
Uncrosslinked ethylene-vinyl acetate copolymer is with the material of the described second encapsulation glue-line.
9. the preparation method of solar photovoltaic assembly according to claim 1, it is characterised in that the first encapsulation glue-line
Shapes and sizes it is consistent with the shapes and sizes of the figure surrounded by the inner surface of the polytetrafluoroethylene ring, second envelope
The shapes and sizes of dress glue-line are consistent with the shapes and sizes of the figure surrounded by the inner surface of the polytetrafluoroethylene ring.
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