CN115394867B - Solar photovoltaic module - Google Patents
Solar photovoltaic module Download PDFInfo
- Publication number
- CN115394867B CN115394867B CN202211138287.5A CN202211138287A CN115394867B CN 115394867 B CN115394867 B CN 115394867B CN 202211138287 A CN202211138287 A CN 202211138287A CN 115394867 B CN115394867 B CN 115394867B
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- CN
- China
- Prior art keywords
- positioning
- battery
- adhesive film
- photovoltaic module
- solar photovoltaic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002313 adhesive film Substances 0.000 claims abstract description 43
- 239000011521 glass Substances 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 7
- 238000005452 bending Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 11
- 238000003475 lamination Methods 0.000 description 7
- 239000000306 component Substances 0.000 description 4
- 239000003550 marker Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000036413 temperature sense Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- H01L31/048—
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- H01L31/049—
-
- H01L31/0508—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
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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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The invention provides a solar photovoltaic module, which can solve the technical problems that the existing solar photovoltaic module has no structural positioning among all layers of components, the battery strings have shift hidden danger, and the string spacing is influenced. The utility model provides a solar photovoltaic module, includes glass, front EVA glued membrane, battery cluster, back EVA glued membrane and the backplate of range upon range of setting, its characterized in that: the four corners of the glass are respectively provided with a positioning column, the four corners of the front EVA adhesive film, the rear EVA adhesive film and the backboard are respectively provided with a first positioning perforation, a second positioning perforation and a positioning blind hole, and the positioning columns penetrate through the first positioning perforation and the second positioning perforation and then are inserted into the positioning blind holes of the backboard; the front EVA adhesive film surface is provided with a front longitudinal bulge extending along the width direction and a front transverse bulge extending along the length direction, the front longitudinal bulge and the front transverse bulge are crossed to form a grid-shaped accommodating groove, and each battery piece of the battery string is respectively positioned and accommodated in an independent accommodating groove single body.
Description
Technical Field
The invention relates to the technical field of solar energy, in particular to a solar photovoltaic module.
Background
The solar photovoltaic module is a core component of a solar power generation system and mainly comprises glass, a front EVA adhesive film, a battery string, a back EVA adhesive film and a back plate/glass; the components of each layer are positioned in a non-structural way, and the positioning among the components is realized through CDD vision equipment of each station during production. Therefore, any vibration may cause the battery strings to shift during the conveying process, so that the intervals between the battery strings are different, and the problem of parallel strings or overlarge strings exists.
For this purpose, we propose a solar photovoltaic module.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a solar photovoltaic module, which can solve the technical problems that the existing solar photovoltaic module has no structural positioning among all layers of components, the battery strings have shift hidden danger, and the string spacing is influenced.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the utility model provides a solar photovoltaic module, includes glass, positive EVA glued membrane, battery cluster, back EVA glued membrane and the backplate of range upon range of setting, the back of first battery piece in the battery cluster is established ties through interconnection area with the front of adjacent second battery piece, its characterized in that:
the four corners of the glass are respectively provided with a positioning column, the four corners of the front EVA adhesive film, the rear EVA adhesive film and the rear EVA adhesive film are respectively provided with a first positioning perforation, a second positioning perforation and a positioning blind hole, and the positioning columns of the glass penetrate through the first positioning perforation of the front EVA adhesive film and the second positioning perforation of the rear EVA adhesive film and then are inserted into the positioning blind holes of the rear EVA adhesive film;
front longitudinal bulges extending along the width direction are formed between two adjacent battery pieces of the same battery string, front transverse bulges extending along the length direction are formed between the adjacent battery strings of the same vertical row, the front longitudinal bulges and the front transverse bulges are crossed to form a grid-shaped accommodating groove, and each battery piece of the battery string is respectively positioned and accommodated in an independent accommodating groove single body.
Furthermore, at least one side of the front EVA adhesive film is provided with a zero mark, and the zero mark is formed by coating high-temperature vanishing ink.
Further, the zero marks are linear, and each horizontal battery string corresponds to one zero mark.
Further, the bending part of the interconnecting belt between two adjacent battery pieces is abutted against the longitudinal protrusions on the front surface;
the front EVA adhesive film and the back EVA adhesive film are respectively embedded with a front conductive film and a back conductive film which are in one-to-one correspondence and are attached to the interconnection belt, the front conductive film extends from one end of the interconnection belt to the front longitudinal bulge, the back conductive film extends from the other end of the interconnection belt to the upper part of the front longitudinal bulge, and vertical projections of the front conductive film and the back conductive film between the first battery piece and the second battery piece are overlapped.
Further, the main grid lines on the front surface and the back surface of the first battery piece and the second battery piece are all scored to form a first positioning groove, and the interconnection strip can be positioned and installed in the first positioning groove.
Further, the depth of the first positioning groove is one third to one half of the diameter of the interconnection belt.
Further, a back longitudinal bulge is formed between two adjacent battery pieces of the same battery string, and the back longitudinal bulge and the front longitudinal bulge are matched to clamp the bending part of the interconnection belt between the two adjacent battery pieces.
Further, the ends of the back longitudinal protrusion and the front longitudinal protrusion are respectively provided with a second positioning groove matched with the interconnection belt.
Furthermore, the two sides of the back longitudinal bulge and the front longitudinal bulge are respectively arranged at intervals with the first battery piece and the second battery piece.
Further, the adjacent front conductive films and the adjacent back conductive films on the same straight line are all arranged at intervals.
(III) beneficial effects
The invention provides a method for preparing the composite material, which has the following beneficial effects:
the glass, the front EVA adhesive film, the back EVA adhesive film and the back plate are matched with each other in a penetrating way through the positioning column and each positioning perforation and the positioning blind hole to realize positioning, and the front EVA adhesive film and the battery strings are positioned through the positioning accommodating grooves, so that the components of each layer of the solar photovoltaic module can be positioned effectively, the displacement of the battery strings is avoided effectively, and the intervals between the battery strings are ensured to meet the design requirements;
in addition, the front longitudinal protrusions and the front transverse protrusions forming the accommodating grooves are distributed on the surface of the front EVA adhesive film in a grid shape, so that the strength of the front EVA adhesive film can be improved, and the battery string displacement caused by shrinkage of the front EVA adhesive film in the lamination process is greatly reduced or avoided.
Drawings
Fig. 1 is a schematic top view of a solar photovoltaic module glass, a front EVA film and a battery string of the present invention after being stacked from bottom to top.
Fig. 2 is a schematic top view of the front EVA film of the solar photovoltaic module of the present invention.
Fig. 3 is a schematic cross-sectional structure of a stacked state of the solar photovoltaic module of the present invention before a lamination process, wherein the cross-section extends along the length direction of the interconnection tape;
fig. 4 is a schematic cross-sectional structure of the back EVA film, interconnect tape, and first battery sheet of the present invention in a laminated state, wherein the cross-section extends along the radial direction of the interconnect tape.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, a solar photovoltaic module comprises glass 1, a front EVA adhesive film 2, a battery string 3, a back EVA adhesive film 4 and a back plate 5 which are stacked, wherein two adjacent battery pieces in the battery string 3 are respectively named as a first battery piece and a second battery piece for distinguishing, and the back of the first battery piece 3-1 and the front of the adjacent second battery piece 3-2 are connected in series through an interconnection belt 6;
the four corners of the glass 1 are respectively provided with a positioning column 1a, the four corners of the front EVA adhesive film 2, the back EVA adhesive film 4 and the back plate 5 are respectively provided with a first positioning perforation 2b, a second positioning perforation and a positioning blind hole, and the positioning columns 1a of the glass penetrate through the first positioning perforation 2b of the front EVA adhesive film and the second positioning perforation of the back EVA adhesive film and then are inserted into the positioning blind holes of the back plate;
the front EVA adhesive film is positioned between two adjacent battery pieces of the same battery string 3 towards one side surface of the battery string, namely, a front longitudinal bulge 2a extending along the width direction of the adhesive film is formed between the first battery piece 3-1 and the second battery piece 3-2, a front transverse bulge 2c extending along the length direction of the adhesive film is formed between the adjacent battery strings 3 positioned in the same vertical row, the front longitudinal bulge 2a and the front transverse bulge 2c are intersected to form a containing groove, and each battery piece of the battery string is respectively positioned and contained in an independent containing groove single body. The accommodating groove in this embodiment, as shown in the dashed box selection part of fig. 2, comprises a first accommodating groove monomer 2e-1 with two unsealed sides, a second accommodating groove monomer 2e-2 with one unsealed side, and a third accommodating groove monomer 2e-3 with all sealed peripheries.
In this embodiment, a zero mark 2d is disposed on one side of the front EVA film in the length direction, and the zero mark 2d is formed by coating high-temperature vanishing ink. Preferably, the zero marks 2d are linear, and each horizontal battery string corresponds to one zero mark. Because the front EVA glued membrane is white, even indicate to form front vertical protruding 2a, storage tank structure, CDD equipment still is still inaccurate, can't realize that every battery piece is effective to be fixed a position the holding in the storage tank, and through designing the zero marker, can effectively solve this technical problem, simultaneously, zero marker 2d is by high temperature vanishing printing ink (i.e. high Wen Xiaoshi temperature sense printing ink) coating formation, in the lamination process, the internal environment temperature in lamination chamber reaches more than 100 ℃, zero marker 2d disappears, avoid causing the influence to sunlight transmission, utilization.
Referring to fig. 3 and 4, in this embodiment, the bending portion 6a of the interconnection tape 6 between two adjacent battery sheets abuts against the front longitudinal protrusion 2 a;
the front face EVA adhesive film 2 and the inner side surface of the back face EVA adhesive film 4 are respectively embedded with a front face conductive film 7 and a back face conductive film 8 which are in one-to-one correspondence and attached to the interconnection belt 6, the front face conductive film 7 extends onto the front face longitudinal bulge 2a from one end of the interconnection belt 6, the back face conductive film 8 extends onto the upper side of the front face longitudinal bulge 2a from the other end of the interconnection belt 6, and vertical projection of the front face conductive film 7 and the back face conductive film 8 between the first battery piece 3-1 and the second battery piece 3-2 is overlapped, namely after lamination, the front face conductive film and the back face conductive film are attached to the whole interconnection belt along the length direction;
the front conductive film 7 and the back conductive film 8 are flexible films made of conductive materials, preferably have better toughness and are not easy to tear.
Each interconnecting strip is coated with a front conductive film and a back conductive film, and if the interconnecting strips are broken, the electrical connection can be still kept under the condition that the conductive films exist, so that the reliability of the solar photovoltaic module is effectively improved.
The adjacent front conductive films 7 and the adjacent back conductive films 8 on the same line are arranged at intervals, that is, the same as the bus bars on the same line, and are arranged at intervals.
The main grid lines of the front and back surfaces of the first battery piece 3-1 and the second battery piece 3-2 are respectively carved with a first positioning groove, the depth of the first positioning groove is one third to one half of the diameter of the interconnection belt 6, and the interconnection belt 6 can be positioned and installed in the first positioning groove. The front EVA adhesive film, the back EVA adhesive film, the first battery piece and the second battery piece can be placed through CCD visual positioning, and the interconnection belt can be placed through the first positioning groove positioning, so that the position relation between the front conductive film, the back conductive film and the interconnection belt is ensured, and after lamination, the front conductive film and the back conductive film are effectively attached to the periphery of the interconnection belt.
In this embodiment, a back longitudinal protrusion 5a is formed between two adjacent battery pieces of the back EVA film 4, and the back conductive film extends from the other end of the interconnection tape to the back longitudinal protrusion 5a, that is, above the front longitudinal protrusion, where the back longitudinal protrusion 5a and the front longitudinal protrusion 2a cooperate to clamp the bending part of the interconnection tape, so as to further reduce the stress effect of the interconnection tape on the edge part of the battery piece. In other embodiments, the ends of the back longitudinal protrusion 5a and the front longitudinal protrusion 2a are respectively provided with a second positioning groove matched with the interconnection belt 6, and the bending part of the interconnection belt is positioned in the positioning cavity spliced by the upper second positioning groove and the lower second positioning groove.
In this embodiment, both sides of the back longitudinal protrusion 5a and the front longitudinal protrusion 2a are spaced from the first battery piece 3-1 and the second battery piece 3-2, so as to avoid the first battery piece and the second battery piece from being lapped on the front longitudinal protrusion 2a and tilting, and ensure the effective lamination of the first battery piece and the second battery piece with the interconnection strip.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a solar photovoltaic module, includes glass, positive EVA glued membrane, battery cluster, back EVA glued membrane and the backplate of range upon range of setting, the back of first battery piece in the battery cluster is established ties through interconnection area with the front of adjacent second battery piece, its characterized in that:
the four corners of the glass are respectively provided with a positioning column, the four corners of the front EVA adhesive film, the rear EVA adhesive film and the rear EVA adhesive film are respectively provided with a first positioning perforation, a second positioning perforation and a positioning blind hole, and the positioning columns of the glass penetrate through the first positioning perforation of the front EVA adhesive film and the second positioning perforation of the rear EVA adhesive film and then are inserted into the positioning blind holes of the rear EVA adhesive film;
front longitudinal bulges extending in the width direction are formed between two adjacent battery pieces of the same battery string, front transverse bulges extending in the length direction are formed between the adjacent battery strings of the same vertical row, the front longitudinal bulges and the front transverse bulges are crossed to form a grid-shaped accommodating groove, and each battery piece of the battery string is respectively positioned and accommodated in an independent accommodating groove single body;
the bending part of the interconnecting belt between two adjacent battery pieces is abutted against the longitudinal protrusions on the front surface;
the front EVA adhesive film and the back EVA adhesive film are respectively embedded with a front conductive film and a back conductive film which are in one-to-one correspondence and are attached to the interconnection belt, the front conductive film extends to the front longitudinal bulge, the back conductive film extends to the upper side of the front longitudinal bulge, the front conductive film and the back conductive film are located in a spacing area between the first battery piece and the second battery piece, and vertical projections of the front conductive film and the back conductive film overlap.
2. A solar photovoltaic module according to claim 1, wherein: and at least one side of the front EVA adhesive film is provided with a zero mark, and the zero mark is formed by coating high-temperature vanishing ink.
3. A solar photovoltaic module as claimed in claim 2, wherein: the zero marks are linear, and each horizontal battery string corresponds to one zero mark.
4. A solar photovoltaic module according to claim 1, wherein: the front and back main grid lines of the first battery piece and the second battery piece are respectively scored to form a first positioning groove, and the interconnecting strip can be positioned and installed in the first positioning grooves.
5. A solar photovoltaic module according to claim 4, wherein: the depth of the first positioning groove is one third to one half of the diameter of the interconnection belt.
6. A solar photovoltaic module according to claim 1, wherein: the back EVA adhesive film is positioned between two adjacent battery pieces and is provided with a back longitudinal bulge, and the back longitudinal bulge and the front longitudinal bulge are matched to clamp the bending part of the interconnection belt between the two adjacent battery pieces.
7. A solar photovoltaic module according to claim 6, wherein: and the ends of the back longitudinal bulge and the front longitudinal bulge are respectively provided with a second positioning groove matched with the interconnection belt.
8. A solar photovoltaic module according to claim 1, wherein: the adjacent front conductive films and the adjacent back conductive films on the same straight line are all arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211138287.5A CN115394867B (en) | 2022-09-19 | 2022-09-19 | Solar photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211138287.5A CN115394867B (en) | 2022-09-19 | 2022-09-19 | Solar photovoltaic module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115394867A CN115394867A (en) | 2022-11-25 |
| CN115394867B true CN115394867B (en) | 2024-01-30 |
Family
ID=84127206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211138287.5A Active CN115394867B (en) | 2022-09-19 | 2022-09-19 | Solar photovoltaic module |
Country Status (1)
| Country | Link |
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| CN (1) | CN115394867B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977341A (en) * | 2016-07-01 | 2016-09-28 | 常州亿晶光电科技有限公司 | Double-glass solar assembly lamination positioning device |
| CN111146302A (en) * | 2019-12-18 | 2020-05-12 | 英利能源（中国）有限公司 | Laying method of photovoltaic module and photovoltaic module |
| WO2021227283A1 (en) * | 2020-05-09 | 2021-11-18 | 杭州福斯特应用材料股份有限公司 | Reflective packaging adhesive film and solar cell module comprising same |
| CN216488111U (en) * | 2021-12-22 | 2022-05-10 | 山东腾晖新能源技术有限公司 | Corner protector for laminating photovoltaic module |
| KR20220082609A (en) * | 2020-12-10 | 2022-06-17 | 김동광 | Solar module interconnection ribbon |
| CN217280803U (en) * | 2022-05-12 | 2022-08-23 | 晶科能源股份有限公司 | Photovoltaic module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9574352B2 (en) * | 2010-04-26 | 2017-02-21 | Guardian Industries Corp. | Multifunctional static or semi-static photovoltaic skylight and/or methods of making the same |
-
2022
- 2022-09-19 CN CN202211138287.5A patent/CN115394867B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977341A (en) * | 2016-07-01 | 2016-09-28 | 常州亿晶光电科技有限公司 | Double-glass solar assembly lamination positioning device |
| CN111146302A (en) * | 2019-12-18 | 2020-05-12 | 英利能源（中国）有限公司 | Laying method of photovoltaic module and photovoltaic module |
| WO2021227283A1 (en) * | 2020-05-09 | 2021-11-18 | 杭州福斯特应用材料股份有限公司 | Reflective packaging adhesive film and solar cell module comprising same |
| KR20220082609A (en) * | 2020-12-10 | 2022-06-17 | 김동광 | Solar module interconnection ribbon |
| CN216488111U (en) * | 2021-12-22 | 2022-05-10 | 山东腾晖新能源技术有限公司 | Corner protector for laminating photovoltaic module |
| CN217280803U (en) * | 2022-05-12 | 2022-08-23 | 晶科能源股份有限公司 | Photovoltaic module |
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| CN115394867A (en) | 2022-11-25 |
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