CN209561427U - Photovoltaic module - Google Patents
Photovoltaic module Download PDFInfo
- Publication number
- CN209561427U CN209561427U CN201822203472.3U CN201822203472U CN209561427U CN 209561427 U CN209561427 U CN 209561427U CN 201822203472 U CN201822203472 U CN 201822203472U CN 209561427 U CN209561427 U CN 209561427U
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- China
- Prior art keywords
- battery strings
- photovoltaic module
- group
- battery
- strings group
- Prior art date
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- 238000009413 insulation Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002313 adhesive film Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- 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
Abstract
The utility model provides a kind of photovoltaic module, including foreboard, battery layers and backboard, the battery layers include the battery strings group and bypass diode of several series connections, each battery strings group includes several being connected in parallel battery strings, each battery strings group is connected in parallel a bypass diode, it is characterised in that: each battery strings include the one third slice cell piece of several series connections.The utility model is by by one third welding of battery film bunchiness, realize that the operating current inside the photovoltaic module is the one third of conventional photovoltaic component, component power loss caused by the series resistance so as to reduce the photovoltaic module internal cell piece, the power output for improving photovoltaic module；In addition, effectively can protect photovoltaic module by being connected in parallel a bypass diode with each battery strings group when photovoltaic module is blocked with hot plate effect, reduce the operating temperature and hot spot risk of the photovoltaic module, extend the service life of the photovoltaic module.
Description
Technical field
The utility model relates to photovoltaic art more particularly to a kind of photovoltaic modulies.
Background technique
In the course of work of solar cell module, if there is shadow occlusion some or certain cell pieces, it will lead to
Output with the concatenated other cell pieces of shade cell piece can all consume on the cell piece, and this energy consumption will lead to PN junction
Partial breakdown, and cause hot-spot, here it is hot spot effects.In order to prevent solar battery due to hot spot effect and by
It destroys, common solution is to install bypass diode additional on the basis of primary circuit, when light is not blocked, each diode
In reverse bias, each cell piece is being produced electricl energy.It can stop producing electricl energy when a cell piece is blocked, become one
High resistance measurement, while other cell pieces promote its reverse bias, lead to the diode current flow for connecting cell piece both ends, flow through originally
The electric current for the battery being blocked is shunted by diode.
In the prior art, solar energy half battery photovoltaic module includes multiple battery strings groups, and each battery strings group includes two
A parallel arrangement and concatenated battery strings, the general connection type that a diode is shared using two battery strings group parallel connections, this
The circuit of sample can cause component output power more defeated than full wafer battery component power when most of partial occlusion occurs for component
It is low out, thus biggish hidden danger is brought to practical application.
In view of this, it is necessary to a kind of improved photovoltaic module is designed, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of higher photovoltaic modulies of output power.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of photovoltaic module, including foreboard, battery
Layer and backboard, the battery layers include the battery strings group and bypass diode of several series connections, each battery strings group packet
Include it is several be connected in parallel battery strings, each battery strings group is connected in parallel a bypass diode, and each battery strings include several strings
The one third of connection connection is sliced cell piece.
As the further improved technical solution of the utility model, the battery strings group includes the first battery being connected in series
String group, the second battery strings group and third battery strings group, the battery strings group all have first electrode and second electrode.
As the further improved technical solution of the utility model, the first electrode of the first battery strings group is connected with
The first electrode of one lead-out wire, the second electrode of the first battery strings group and the second battery strings group is connected with the second lead-out wire,
The first electrode of the second electrode of the second battery strings group and the third battery strings group is connected with third lead-out wire, and described the
The first electrode of three battery strings groups is connected with the 4th lead-out wire, is provided between first lead-out wire and second lead-out wire
The second bypass diode, described are provided between first bypass diode, second lead-out wire and the third lead-out wire
It is provided with third bypass diode between three lead-out wires and the 4th lead-out wire, so that the bypass diode and corresponding electricity
Pond string group is connected in parallel.
As the further improved technical solution of the utility model, the first battery strings group includes three and is connected in parallel
First battery strings, the second battery strings group include three the second battery strings being connected in parallel, and the first battery strings and the second battery strings are simultaneously
Row's setting；The third battery strings group includes six third battery strings arranged side by side, six third battery strings respectively with
The first battery strings and the alignment setting of the second battery strings of first battery strings group and the second battery strings group, the third battery strings are two-by-two
It is connected in parallel again after series connection.
As the further improved technical solution of the utility model, between the first battery strings group and the second battery strings group
Busbar equipped with one end connection the first battery strings group first electrode and the second battery strings group second electrode.
As the further improved technical solution of the utility model, the first electrode is cathode, and the second electrode is
Anode.
As the further improved technical solution of the utility model, the one third is sliced cell piece and corresponding busbar
Between be equipped with insulation strip.
As the further improved technical solution of the utility model, the material of the insulation strip is pearl cotton.
As the further improved technical solution of the utility model, described in individually the bypass diode is connected in parallel
The quantity that one third is sliced cell piece is not more than 24.
As the further improved technical solution of the utility model, the second electrode of the first battery strings group is the light
The cathode output end of component is lied prostrate, the first electrode of the third battery strings group is the cathode output end of the photovoltaic module.
From the above technical scheme, the utility model is by realizing the light for one third welding of battery film bunchiness
The operating current for lying prostrate component internal is the one third of conventional photovoltaic component, so as to reduce the photovoltaic module internal cell
The loss of component power caused by the series resistance of piece, the power output for improving photovoltaic module；In addition, by with each battery strings group
It is connected in parallel a bypass diode, effectively can protect photovoltaic module when photovoltaic module is blocked with hot plate effect, is reduced
The operating temperature and hot spot risk of the photovoltaic module, extend the service life of the photovoltaic module.
Detailed description of the invention
Fig. 1 is the stacking schematic diagram of the utility model photovoltaic module；
Fig. 2 is the structural schematic diagram of battery layers in Fig. 1；
Fig. 3 is the enlarged drawing of lead-out wire and collets in Fig. 2；
Fig. 4 is the internal circuit diagram of the utility model battery layers；
Specific embodiment
In order to keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawing and it is embodied
The utility model is described in detail in example.
Shown in please referring to Fig.1 to Fig.4, a kind of photovoltaic module 100, including be cascading from top to bottom foreboard 110,
Front layer packaging adhesive film 120, battery layers 130, rear layer packaging adhesive film 140 and backboard 150.Battery layers 130 connect including several series connection
The battery strings group connect, every group of battery strings group include several battery strings being connected in parallel, if each battery strings include being connected in series
Dry one third is sliced cell piece 10.Wherein, every group of battery strings group passes through lead-out wire respectively and is connected in parallel a bypass diode.
Preferably, the battery strings group of the utility model includes three groups, respectively the first battery strings group 131, the second battery strings
Group 132 and third battery strings group 133；Each battery strings group includes three groups of battery strings being connected in parallel, specifically, first
Battery strings group 131 includes three the first battery strings 1311,1312,1313；Second battery strings group 132 includes three the second battery strings
1321,1322,1323；Third battery strings group 133 include six third battery strings 1331,1332,1333,1334,1335,
1336,1333 connect with 1334,1332 connect with 1335,1331 connect with 1336.
One third slice cell piece 10 is using dicing technique (laser cutting technique or other common cutting techniques)
Conventional batteries piece one dividing into three is formed.In the present embodiment, one third slice cell piece 10 is used into automatic string
Welder bunchiness, obtains battery strings.
Battery strings are arranged side by side, specifically, the first battery strings group 131 and the second battery strings group 132 are arranged side by side, it may be assumed that three
A first battery strings 1311,1312,1313 and three the second battery strings 1321,1322,1323 are adjacent arranged side by side, six thirds
Battery strings 1331,1332,1333,1334,1335,1336 are arranged side by side.Preferably, three the first battery strings 1311,1312,
1313 and three the second battery strings 1321,1322,1323 left side is set laterally side by side, six third battery strings 1331,1332,
1333,1334,1335,1336 are arranged in right side laterally side by side, form the battery layers 130 that global shape is rectangle.
Every string battery strings all have positive electrode and negative electrode.The cathode and anode directions phase of three the first battery strings 1311,1312,1313
Together, the anode that the anode of the first battery strings 1311,1312,1313 is connected by interconnecting strip 140 as the first battery strings group 131,
The connected cathode as the first battery strings group 131 of the cathode of first battery strings 1311,1312,1313.Three the second battery strings
1321,1322,1323 cathode and anode directions are identical, and the anode of the second battery strings 1321,1322,1323, which is connected, is used as the second battery strings
The anode of group 132, the cathode that the cathode of the second battery strings 1321,1322,1323 is connected as the second battery strings group 132.First
The cathode and anode directions of battery strings group 131 and the second battery strings group 132 are opposite.
Six 1331,1332,1333,1334,1335,1336 points of third battery strings are two groups, every group of three battery strings
Cathode and anode directions are identical, and the cathode and anode directions between two groups of battery strings correspond to series connection on the contrary, two groups of battery strings are distinguished two-by-two,
Then it is connected in parallel.Specifically, 1331,1332,1333 cathode and anode directions of third battery strings are identical, third battery strings 1334,
1335,1336 cathode and anode directions are identical, and third battery strings 1331,1332,1333 and third battery strings 1334,1335,1336 are just
Cathode direction is on the contrary, third battery strings 1331,1336 are connected in series, and third battery strings 1332,1335 are connected in series, third battery
String 1333,1334 is connected in series, then, third battery strings 1331,1336, third battery strings 1332,1335 and third battery strings
1333, it 1334 is connected in parallel again.Anode of the anode of third battery strings 1331,1332,1333 as third battery strings group, third
Cathode of the cathode of battery strings 1334,1335,1336 as third battery strings group.
Further, the cathode of the first battery strings group 131 and the anode of the second battery strings group 132 are located at the same side and by mutual
Bracing 140 is connected, and the cathode of the second battery strings group 132 and the anode of third battery strings group 133 are located at the same side and pass through interconnection
Item 140 is connected.
Photovoltaic module 100 further includes the lead-out wire connecting with the anode of three groups of battery strings groups or cathode.Specifically, draw
Outlet includes the first lead-out wire 171 for connecting of anode with the first battery strings group 131, with the cathode of the first battery strings group 131 and
Second lead-out wire 172 of the anode connection of the second battery strings group 132, cathode and third battery strings with the second battery strings group 132
The third lead-out wire 173 of the anode connection of group 133 and the 4th lead-out wire 174 being connect with the cathode of third battery strings group 133.
First lead-out wire 171 is the cathode output end of photovoltaic module 100, and the 4th lead-out wire 174 is that the cathode of photovoltaic module 100 exports
End.
Bypass diode includes the first bypass diode 181 being connected in parallel with the first battery strings group 131 and the second battery
The second bypass diode 182 and two poles of third bypass being connected in parallel with third battery strings group 133 that string group 132 is connected in parallel
Pipe 183.The one third slice cell piece 10 being connected in parallel with each bypass diode is no more than 24, it may be assumed that each first electricity
The quantity of the cell piece 10 of pond string 1311,1312,1313 is no more than 24, the three of each second battery strings 1321,1322,1323
The quantity of/mono- slice cell piece 10 no more than 24, cut by the one third of third battery strings 1331 and third battery strings 1336
The sum of quantity of piece cell piece 10 is no more than 24, the one third slice electricity of third battery strings 1332 and third battery strings 1335
The sum of quantity of pond piece 10 is no more than 24, the one third slice cell piece of third battery strings 1333 and third battery strings 1334
The sum of 10 quantity is no more than 24.It is arranged such, it is ensured that bypass diode being capable of trouble free service.
In the utility model, the first bypass diode 181, the second bypass diode 182 and third bypass diode 183
(not shown) internal in terminal box, terminal box is installed on 100 middle position of photovoltaic module, i.e. first the 131, second electricity of battery strings group
The intersection of pond string group 132 and third battery strings group 133.So set, terminal box is facilitated to connect with each battery strings group.
Preferably, photovoltaic module 100 further includes set on the remittance between the first battery strings group 131 and the second battery strings group 132
Flow item 150.150 one end of busbar is connect with the anode of the cathode of the first battery strings group 131 and the second battery strings group 132, another
The first lead-out wire 171 of end connection.So set, being respectively positioned on the first lead-out wire 171 in photovoltaic module 100 with other lead-out wires
Between position terminal box in.
Photovoltaic module 100 further includes the insulation being set between busbar 150 and corresponding one third slice cell piece 10
Item 161 realizes the insulation between one third slice cell piece 10 and busbar 150.In addition, lead-out wire and corresponding one third
It is sliced between cell piece 10 and is equipped with collets 162, realize one third slice cell piece 10 and lead-out wire and each lead-out wire
Between insulation.Between the first battery strings group 131 and the second battery strings group 132, collets 162 are located at and draw insulation strip 161
Between outlet and corresponding one third slice cell piece 10.Insulation strip 161, collets 162 material can for pearl cotton or
Other common insulating materials of person not limit herein.
Please join shown in Fig. 4, be Fig. 3 in photovoltaic module 100 equivalent circuit diagram, photovoltaic module 100 work normally when inside
Current direction is as follows: 1311,1312,1313 current direction of the first battery strings be from left to right, the second battery strings 1321,1322,
1323 current directions are that from right to left, 1331,1332,1333 current direction of third battery strings is third battery strings from right to left
1334,1335,1336 current directions are from left to right.If having one third slice in the first battery strings 1311,1312 or 1313
Cell piece is blocked, and the first bypass diode 181 becomes forward conduction state from reversely ending, battery strings 1311,1312 or
The output of 1313 inactivitys；If other battery strings are blocked, corresponding bypass diode situation is consistent with the above.
In conclusion the photovoltaic module of the utility model is by realizing photovoltaic group for one third welding of battery film bunchiness
Operating current inside part is the one third of conventional photovoltaic component, so as to reduce the photovoltaic module internal cell piece
The loss of component power caused by series resistance, the power output for improving component 100；In addition, passing through each electricity in photovoltaic module
Pond string group is connected in parallel a bypass diode, and photovoltaic group can be effectively protected when photovoltaic module is blocked with hot plate effect
Part reduces the operating temperature and hot spot risk of the photovoltaic module, extends the service life of the photovoltaic module.
It is used herein such as "upper", "lower", "left", "right", "front", "rear", representation space relative position term
It is to describe relationship of the feature relative to another feature as shown in the drawings for the purpose convenient for explanation.It can manage
Solution, according to the difference of product placement position, the term of relative space position can be intended to include other than orientation as shown in the figure
Different direction, should not be interpreted as limitations on claims.
In addition, above embodiments are merely to illustrate the utility model and not limit technical side described in the utility model
Case, understanding of this description should be based on persons of ordinary skill in the field, although this specification is referring to above-mentioned
Embodiment has been carried out detailed description to the utility model, still, those skilled in the art should understand that, affiliated skill
The technical staff in art field still can be modified or replaced equivalently the utility model, and all not depart from this practical new
The technical solution and its improvement of the spirit and scope of type, should all cover in the scope of the claims of the utility model.
Claims (10)
1. a kind of photovoltaic module, including foreboard, battery layers and backboard, it is characterised in that: the battery layers include several series connection
The battery strings group and bypass diode of connection, each battery strings group include several being connected in parallel battery strings, each battery strings group
It is connected in parallel a bypass diode, each battery strings include the one third slice cell piece of several series connections.
2. photovoltaic module according to claim 1, it is characterised in that: the battery strings group includes the first electricity being connected in series
Pond string group, the second battery strings group and third battery strings group, the battery strings group all have first electrode and second electrode.
3. photovoltaic module according to claim 2, it is characterised in that: the first electrode of the first battery strings group is connected with
The first electrode of first lead-out wire, the second electrode of the first battery strings group and the second battery strings group is connected with the second extraction
The first electrode of line, the second electrode of the second battery strings group and the third battery strings group is connected with third lead-out wire, institute
The first electrode for stating third battery strings group is connected with the 4th lead-out wire, sets between first lead-out wire and second lead-out wire
It is equipped between the first bypass diode, second lead-out wire and the third lead-out wire and is provided with the second bypass diode, institute
State and be provided with third bypass diode between third lead-out wire and the 4th lead-out wire so that the bypass diode with it is corresponding
Battery strings group be connected in parallel.
4. photovoltaic module according to claim 3, it is characterised in that: the first battery strings group includes three and is connected in parallel
The first battery strings, the second battery strings group includes three the second battery strings being connected in parallel, the first battery strings and the second battery strings
It is arranged side by side；The third battery strings group includes six third battery strings arranged side by side, six third battery strings difference
Setting, the third battery strings two are aligned with the first battery strings and the second battery strings of the first battery strings group and the second battery strings group
It is connected in parallel again after two series connections.
5. photovoltaic module according to claim 4, it is characterised in that: the first battery strings group and the second battery strings group it
Between be equipped with one end connection the first battery strings group first electrode and the second battery strings group second electrode busbar.
6. photovoltaic module according to claim 3, it is characterised in that: the first electrode is cathode, the second electrode
For anode.
7. photovoltaic module according to claim 4, it is characterised in that: the one third slice cell piece converges with corresponding
Insulation strip is equipped between item.
8. photovoltaic module according to claim 7, it is characterised in that: the material of the insulation strip is pearl cotton.
9. photovoltaic module according to claim 1, it is characterised in that: the institute being connected in parallel with the single bypass diode
The quantity of one third slice cell piece is stated no more than 24.
10. photovoltaic module according to claim 6, it is characterised in that: the second electrode of the first battery strings group is institute
The cathode output end of photovoltaic module is stated, the first electrode of the third battery strings group is the cathode output end of the photovoltaic module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822203472.3U CN209561427U (en) | 2018-12-26 | 2018-12-26 | Photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822203472.3U CN209561427U (en) | 2018-12-26 | 2018-12-26 | Photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209561427U true CN209561427U (en) | 2019-10-29 |
Family
ID=68303793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822203472.3U Active CN209561427U (en) | 2018-12-26 | 2018-12-26 | Photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209561427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113570038A (en) * | 2021-07-19 | 2021-10-29 | 中国华能集团清洁能源技术研究院有限公司 | Photovoltaic module wiring system and method based on neural network point-mounted diodes |
-
2018
- 2018-12-26 CN CN201822203472.3U patent/CN209561427U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113570038A (en) * | 2021-07-19 | 2021-10-29 | 中国华能集团清洁能源技术研究院有限公司 | Photovoltaic module wiring system and method based on neural network point-mounted diodes |
| CN113570038B (en) * | 2021-07-19 | 2023-07-28 | 中国华能集团清洁能源技术研究院有限公司 | Photovoltaic module wiring system and method based on neural network spot-mounted diode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 199, Lushan Road, Suzhou hi tech Zone, Suzhou City, Jiangsu Province Patentee after: CSI Cells Co.,Ltd. Patentee after: Changshu Artes Sunshine Power Technology Co.,Ltd. Patentee after: Atlas sunshine Power Group Co.,Ltd. Address before: No. 199, Lushan Road, Suzhou hi tech Zone, Suzhou City, Jiangsu Province Patentee before: CSI Cells Co.,Ltd. Patentee before: Changshu Artes Sunshine Power Technology Co.,Ltd. Patentee before: CSI SOLAR POWER GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |