CN115394867A - Solar photovoltaic module - Google Patents
Solar photovoltaic module Download PDFInfo
- Publication number
- CN115394867A CN115394867A CN202211138287.5A CN202211138287A CN115394867A CN 115394867 A CN115394867 A CN 115394867A CN 202211138287 A CN202211138287 A CN 202211138287A CN 115394867 A CN115394867 A CN 115394867A
- Authority
- CN
- China
- Prior art keywords
- positioning
- battery
- photovoltaic module
- solar photovoltaic
- adhesive film
- 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.)
- Granted
Links
- 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 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 38
- 239000005038 ethylene vinyl acetate Substances 0.000 description 38
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 38
- 238000000034 method Methods 0.000 description 11
- 230000004308 accommodation Effects 0.000 description 4
- 239000000306 component Substances 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 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
- 230000004438 eyesight 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
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- H01L31/048—
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- H01L31/049—
-
- H01L31/0508—
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- 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 structural positioning does not exist among all layers of components of the existing solar photovoltaic module, potential shifting hazards exist in a battery string, and 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: positioning columns are respectively arranged at four corners of the glass, a first positioning through hole, a second positioning through hole and a positioning blind hole are respectively arranged at the front EVA adhesive film, the back EVA adhesive film and the four corners of the back plate, and the positioning columns penetrate through the first positioning through hole and the second positioning through hole and then are inserted into the positioning blind holes of the back plate; the front longitudinal protrusions extending along the width direction and the front transverse protrusions extending along the length direction are formed on the surface of the front EVA adhesive film, the front longitudinal protrusions and the front transverse protrusions are crossed to form latticed accommodating grooves, and each battery piece of the battery string is positioned and accommodated in an independent accommodating groove unit.
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 (ethylene vinyl acetate) adhesive film, a battery string, a back EVA adhesive film and a back plate/glass; and the components of each layer are not structurally positioned, and the positioning among the components is realized through CDD vision equipment of each station during production. Therefore, during the conveying process, any vibration can cause the battery strings to shift, so that the intervals between the battery strings are different, and the problems of parallel strings or overlarge strings exist.
Therefore, a solar photovoltaic module is provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a solar photovoltaic module which can solve the technical problems that all layers of components of the conventional solar photovoltaic module are not structurally positioned, the potential displacement hazard exists in a battery string, and the string spacing is influenced.
(II) technical scheme
In order to achieve the 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, the back EVA glued membrane and the backplate of range upon range of setting, the back of first battery piece and the front of adjacent second battery piece are established ties its characterized in that through interconnection area in the battery cluster:
the four corners of the glass are respectively provided with positioning columns, the four corners of the front EVA adhesive film, the four corners of the back EVA adhesive film and the four corners of the back plate are respectively provided with a first positioning through hole, a second positioning through hole and a positioning blind hole, and the positioning columns of the glass penetrate through the first positioning through hole of the front EVA adhesive film and the second positioning through hole 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, front longitudinal protrusions extending along the width direction are formed between the two adjacent battery pieces of the same battery string, front transverse protrusions extending along the length direction are formed between the adjacent battery strings of the same vertical row, the front longitudinal protrusions and the front transverse protrusions are crossed to form latticed accommodating grooves, and the battery pieces of the battery string are respectively positioned and accommodated in independent accommodating groove units.
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 disappearing ink.
Furthermore, the zero marks are linear, and each transverse battery string corresponds to one zero mark.
Furthermore, the bent part of the interconnection belt between two adjacent battery pieces is abutted against the front longitudinal bulge;
the front side EVA adhesive film and the back side EVA adhesive film are embedded with a front side conductive film and a back side conductive film which are in one-to-one correspondence with the interconnection belts and are attached to the interconnection belts respectively, the front side conductive film extends from one end of the interconnection belts to the front side longitudinal protrusion, the back side conductive film extends from the other end of the interconnection belts to the upper side of the front side longitudinal protrusion, and the front side conductive film and the back side conductive film are overlapped in vertical projection between the first battery piece and the second battery piece.
Furthermore, the main grid lines on the front and back of the first cell piece and the second cell piece are respectively provided with a first positioning groove in a scribing way, and the interconnection belt can be positioned and installed in the first positioning grooves.
Further, the depth of the first positioning groove is one third to one half of the diameter of the interconnection belt.
Furthermore, a back longitudinal protrusion is formed between two adjacent battery pieces of the same battery string on the back EVA adhesive film, and the back longitudinal protrusion and the front longitudinal protrusion are matched to clamp a bent part of the interconnection belt between the two adjacent battery pieces.
Furthermore, the end parts of the back longitudinal bulge and the front longitudinal bulge 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 arranged at intervals with the first battery piece and the second battery piece.
Furthermore, adjacent front conductive films and adjacent back conductive films on the same straight line are arranged at intervals.
(III) advantageous effects
The invention provides a method which has the following beneficial effects:
(1) The positioning is realized by the inserting and matching of the positioning columns, the positioning through holes and the positioning blind holes among the glass, the front EVA adhesive film, the back EVA adhesive film and the back plate, and the effective positioning between each layer of component of the solar photovoltaic module can be realized by the positioning of the positioning accommodating grooves between the front EVA adhesive film and the battery string, so that the displacement of the battery string is effectively avoided, and the space between the battery string and the string is ensured to meet the design requirement;
(2) In addition, the front longitudinal protrusion and the front transverse protrusion which form the accommodating groove are distributed on the surface of the front EVA adhesive film in a latticed manner, so that the strength of the front EVA adhesive film can be improved, and the displacement of the battery string caused by the shrinkage of the front EVA adhesive film in the laminating 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 stacked from bottom to top according to the present invention.
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 view of a solar photovoltaic module according to the present invention in a laminated state before a laminating process, wherein the cross-section extends along the length of the interconnection tape;
fig. 4 is a schematic cross-sectional view of the laminated state of the backside EVA film, the interconnection tape, and the first cell sheet, wherein the cross section extends along the radial direction of the interconnection tape.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached drawings 1 and 2, the solar photovoltaic module comprises glass 1, a front EVA (ethylene vinyl acetate) film 2, a battery string 3, a back EVA film 4 and a back plate 5 which are arranged in a stacked mode, two adjacent battery pieces in the battery string 3 are named as a first battery piece and a second battery piece for distinguishing, and the back face of the first battery piece 3-1 is connected with the front face of the second battery piece 3-2 in series through an interconnection belt 6;
four corners of the glass 1 are respectively provided with positioning columns 1a, 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 through hole 2b, a second positioning through hole 4b and a positioning blind hole 5a, and the positioning columns 1a of the glass penetrate through the first positioning through hole 2b of the front EVA adhesive film and the second positioning through hole 4b of the back EVA adhesive film and then are inserted into the positioning blind holes 5a of the back plate;
the side surface of the front EVA adhesive film facing the battery string is positioned between two adjacent battery pieces of the same battery string 3, namely a front longitudinal protrusion 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 protrusion 2c extending along the length direction of the adhesive film is formed between the adjacent battery strings 3 in the same vertical row, the front longitudinal protrusion 2a and the front transverse protrusion 2c are crossed to form a containing groove, and each battery piece of the battery string is positioned and contained in an independent containing groove unit. The accommodation groove in this embodiment, as shown by the dashed line frame selection portion in fig. 2, includes a first accommodation groove monomer 2e-1 whose two sides are not closed, a second accommodation groove monomer 2e-2 whose one side is not closed, and a third accommodation groove monomer 2e-3 whose periphery is closed.
In this embodiment, a zero mark 2d is arranged on one side of the front EVA adhesive film in the length direction, and the zero mark 2d is formed by coating high-temperature disappearing ink. Preferably, the zero position mark 2d is a linear type, and each horizontal battery string corresponds to one zero position mark. Because the front EVA adhesive film is white, even though the front longitudinal protrusion 2a and the containing groove structure are formed, the CDD equipment is still inaccurate, the effective positioning and containing of each battery piece in the containing groove cannot be realized, the technical problem can be effectively solved by designing the zero mark, meanwhile, the zero mark 2d is formed by coating high-temperature disappearing ink (namely high-temperature disappearing temperature-sensitive ink), in the laminating process, the internal environment temperature of the laminating cavity reaches more than 100 ℃, the zero mark 2d disappears, and the influence on the sunlight transmission and utilization is avoided.
Referring to fig. 3 and 4, in this embodiment, the bending portion 6a of the interconnection tape 6 between two adjacent battery pieces abuts against the front longitudinal protrusion 2 a;
the front side EVA adhesive film 2 and the back side EVA adhesive film 4 are respectively embedded with a front side conductive film 7 and a back side conductive film 8 which are in one-to-one correspondence with the interconnection belt 6 and are jointed with the interconnection belt, the front side conductive film 7 extends from one end of the interconnection belt 6 to the front side longitudinal bulge 2a, the back side conductive film 8 extends from the other end of the interconnection belt 6 to the upper part of the front side longitudinal bulge 2a, the front side conductive film 7 and the back side conductive film 8 are vertically projected and overlapped between the first battery piece 3-1 and the second battery piece 3-2, namely, after lamination, the front side conductive film and the back side conductive film are jointed with 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 good toughness and are not easy to tear.
Each interconnection belt is adhered with a front conductive film and a back conductive film, and if the interconnection belt is broken, the interconnection belts can still be electrically connected under the condition that the conductive films exist, so that the reliability of the solar photovoltaic module is effectively improved.
The front conductive films 7 and the back conductive films 8 adjacent to each other on the same straight line are provided at intervals, that is, at intervals similar to those of the bus bars on the same straight line.
The main grid lines on the front and back of the first cell piece 3-1 and the second cell piece 3-2 are all carved with first positioning grooves, the depth of each 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 grooves. The placement of the front EVA adhesive film, the back EVA adhesive film, the first battery piece and the second battery piece can be positioned visually through the CCD, the placement of the interconnection belt can be positioned through the first positioning groove, the position relation of the front conductive film and the back conductive film and the interconnection belt is ensured, and the front conductive film and the back conductive film are effectively attached to the periphery of the interconnection belt after lamination.
In this embodiment, a back longitudinal protrusion 5a is formed between two adjacent battery pieces on the back EVA adhesive film 4, the back conductive film extends from the other end of the interconnection belt to the back longitudinal protrusion 5a, that is, is located above the front longitudinal protrusion, and the back longitudinal protrusion 5a and the front longitudinal protrusion 2a cooperate to clamp the bent portion of the interconnection belt, so as to further reduce the stress effect of the interconnection belt on the edge portion of the battery piece. In other embodiments, the ends of the back longitudinal protrusion 5a and the front longitudinal protrusion 2a are provided with second positioning grooves cooperating with the interconnection belt 6, and the bending portion of the interconnection belt is positioned in the positioning cavity formed by splicing the upper and lower second positioning grooves.
In this embodiment, the two sides of the back longitudinal protrusion 5a and the front longitudinal protrusion 2a are spaced apart from the first battery piece 3-1 and the second battery piece 3-2, so as to prevent the first battery piece and the second battery piece from tilting due to being lapped on the front longitudinal protrusion 2a, and ensure effective adhesion between the first battery piece and the interconnection belt and between the first battery piece and the second battery piece.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a solar photovoltaic module, includes glass, positive EVA glued membrane, battery cluster, the back EVA glued membrane and the backplate of range upon range of setting, the back of first battery piece and the front of adjacent second battery piece are established ties its characterized in that through interconnection area in the battery cluster:
the four corners of the glass are respectively provided with positioning columns, the four corners of the front EVA adhesive film, the four corners of the back EVA adhesive film and the four corners of the back plate are respectively provided with a first positioning through hole, a second positioning through hole and a positioning blind hole, and the positioning columns of the glass penetrate through the first positioning through hole of the front EVA adhesive film and the second positioning through hole 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, front longitudinal protrusions extending along the width direction are formed between the two adjacent battery pieces of the same battery string, front transverse protrusions extending along the length direction are formed between the adjacent battery strings of the same vertical row, the front longitudinal protrusions and the front transverse protrusions are crossed to form latticed accommodating grooves, and the battery pieces of the battery string are respectively positioned and accommodated in independent accommodating groove units.
2. The solar photovoltaic module of claim 1, wherein: 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 disappearing ink.
3. The solar photovoltaic module of claim 2, wherein: the zero marks are linear, and each battery string in each transverse row corresponds to one zero mark.
4. The solar photovoltaic module of claim 1, wherein: the bent part of the interconnection belt between two adjacent battery pieces is abutted against the front longitudinal bulge;
the front side EVA adhesive film and the back side EVA adhesive film are embedded with a front side conductive film and a back side conductive film which are in one-to-one correspondence with the interconnection belts and are attached to the interconnection belts respectively, the front side conductive film extends from one end of the interconnection belts to the front side longitudinal protrusion, the back side conductive film extends from the other end of the interconnection belts to the upper side of the front side longitudinal protrusion, and the front side conductive film and the back side conductive film are overlapped in vertical projection between the first battery piece and the second battery piece.
5. The solar photovoltaic module of claim 4, wherein: the main grid lines on the front and back sides of the first battery piece and the second battery piece are respectively carved with a first positioning groove, and the interconnection belt can be positioned and installed in the first positioning grooves.
6. The solar photovoltaic module of claim 5, wherein: the depth of the first positioning groove is one third to one half of the diameter of the interconnection belt.
7. The solar photovoltaic module of claim 4, wherein: the back EVA adhesive film is positioned between two adjacent battery pieces to form a back longitudinal protrusion, and the back longitudinal protrusion and the front longitudinal protrusion are matched to clamp the bending part of the interconnection belt between the two adjacent battery pieces.
8. The solar photovoltaic module of claim 7, wherein: and the end parts of the back longitudinal bulge and the front longitudinal bulge are respectively provided with a second positioning groove matched with the interconnection belt.
9. The solar photovoltaic module of claim 7, wherein: the two sides of the back longitudinal bulge and the front longitudinal bulge are arranged at intervals with the first battery piece and the second battery piece.
10. The solar photovoltaic module of claim 4, wherein: and adjacent front conductive films and adjacent back conductive films on the same straight line are 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 true CN115394867A (en) | 2022-11-25 |
| CN115394867B CN115394867B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211138287.5A Active CN115394867B (en) | 2022-09-19 | 2022-09-19 | Solar photovoltaic module |
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| CN (1) | CN115394867B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140090687A1 (en) * | 2010-04-26 | 2014-04-03 | Guardian Industries Corp. | Multifunctional static or semi-static photovoltaic skylight and/or methods of making the same |
| 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 |
-
2022
- 2022-09-19 CN CN202211138287.5A patent/CN115394867B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140090687A1 (en) * | 2010-04-26 | 2014-04-03 | Guardian Industries Corp. | Multifunctional static or semi-static photovoltaic skylight and/or methods of making the same |
| 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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| Publication number | Publication date |
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| CN115394867B (en) | 2024-01-30 |
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