CN211480048U - Photovoltaic module - Google Patents
Photovoltaic module Download PDFInfo
- Publication number
- CN211480048U CN211480048U CN202020160625.5U CN202020160625U CN211480048U CN 211480048 U CN211480048 U CN 211480048U CN 202020160625 U CN202020160625 U CN 202020160625U CN 211480048 U CN211480048 U CN 211480048U
- Authority
- CN
- China
- Prior art keywords
- battery
- string group
- photovoltaic module
- assembly
- sub
- 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.)
- Active
Links
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 238000005336 cracking Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a photovoltaic module, photovoltaic module includes: the battery pack comprises a first battery string group and a second battery string group which are connected in series and arranged along the short side direction of the assembly, each battery string group comprises three battery strings which are connected in parallel and arranged along the short side direction of the assembly, each battery string comprises two battery sub-strings which are connected in series and arranged along the long side direction of the assembly, each battery sub-string comprises a plurality of battery slices which are equal in number and connected in series, and each battery slice is a battery slice formed by cutting a whole battery slice; in each battery string group, three battery substrings along the short side direction of the assembly form a first battery substring group, and the other three battery substrings form a second battery substring group; each battery sub-string group is reversely connected with a bypass diode in parallel, and the four bypass diodes are arranged in a gap between the first battery string group and the second battery string group and are close to the short sides of the assembly. The utility model discloses a photovoltaic module does benefit to the anti load-carrying capacity who improves the backplate under the condition that improves output.
Description
Technical Field
The utility model belongs to the technical field of the photovoltaic power generation technique and specifically relates to a photovoltaic module is related to.
Background
With the rapid development of photovoltaic technology, solar power stations occupy a large market at home and abroad, and the demand for high-power photovoltaic modules is higher and higher.
The conventional circuit design not only brings difficulty in the manufacture process of the front panel glass, but also reduces the load resistance of the back panel such as glass by arranging the diode and the junction box in the middle of the assembly, and easily causes cracking of the back panel.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model aims to provide a photovoltaic module can reduce the circuit loss, does benefit to the anti load capacity who improves the backplate.
In order to achieve the above object, an embodiment of the present invention provides a photovoltaic module including: the battery pack comprises a first battery string group and a second battery string group which are connected in series and arranged along the short side direction of the assembly, wherein each battery string group comprises three battery strings which are connected in parallel and arranged along the short side direction of the assembly, each battery string comprises two battery sub-strings which are connected in series and arranged along the long side direction of the assembly, each battery sub-string comprises a plurality of battery pieces which are equal in number and connected in series, and each battery piece is a battery piece formed by cutting a whole battery piece; in each battery string group, three battery substrings along the short side direction of the assembly form a first battery substring group, and the other three battery substrings form a second battery substring group; each battery sub-string group is reversely connected with a bypass diode in parallel, and the four bypass diodes are arranged in a gap between the first battery string group and the second battery string group and are close to the short sides of the components.
According to the utility model discloses a photovoltaic module, through adopting the section battery, can reduce the electric current of battery cluster, reduce the internal loss of circuit, and each battery cluster group is connected in parallel by three battery clusters and constitutes, adopt the section battery piece and carry out the circuit design of connecting in parallel promptly, can avoid adopting the module output current reduction that the section battery caused, guarantee module output power, and, through the reverse parallelly connected bypass diode of each battery cluster group, can reduce photovoltaic module's hot spot temperature in order to protect photovoltaic module; and the four bypass diodes are arranged in the gap between the first battery string group and the second battery string group and along the short sides of the assembly, so that the through holes of the back plate can be arranged on two sides of the back plate when the junction box is connected, and compared with the through holes arranged in the middle, the possibility of cracking of the back plate, particularly the glass back plate of the double-sided assembly can be reduced, and the load resistance of the back plate is improved.
In some embodiments, the battery piece is one half of a battery piece cut from a whole battery piece, and the number of the battery pieces of each battery sub-string is 8-12.
In some embodiments, the number of battery slices per battery sub-string is 12.
In some embodiments, the battery pieces are one third battery pieces cut from a whole battery piece, and the number of the battery pieces of each battery sub-string is 8-25.
In some embodiments, the number of battery slices per battery sub-string is 18.
In some embodiments, a first lead bus bar extending parallel to a long side direction of the module is provided between the first cell string group and the second cell string group, the first lead bus bar being adjacent to the first cell string group; in the first battery string group, the first battery sub-string group is reversely connected with a first bypass diode in parallel through the first lead bus bar, the first bypass diode is arranged at one end, close to the short side of the assembly, of the first battery sub-string group, the second battery sub-string group is reversely connected with a second bypass diode in parallel through the first lead bus bar, and the second bypass diode is arranged at one end, close to the short side of the assembly, of the second battery sub-string group.
In some embodiments, a second lead bus bar extending parallel to a long side direction of the module is provided between the first cell string group and the second cell string group, the second lead bus bar being adjacent to the second cell string group; in the second battery string group, the first battery sub-string group is reversely connected with a third bypass diode in parallel through the second lead bus bar, the third bypass diode is arranged at one end, close to the short side of the assembly, of the first battery sub-string group, the second battery sub-string group is reversely connected with a fourth bypass diode in parallel through the second lead bus bar, and the fourth bypass diode is arranged at one end, close to the short side of the assembly, of the second battery sub-string group.
In some embodiments, in the first battery string group, a first center bus bar extending parallel to a short side direction of the pack is provided between the first battery sub-string group and the second battery sub-string group, and one end of the first center bus bar is connected to the first lead bus bar.
In some embodiments, in the second battery string group, a second center bus bar extending parallel to a short side direction of the pack is provided between the first battery sub-string group and the second battery sub-string group, and one end of the second center bus bar is connected to the second lead bus bar.
In some embodiments, the photovoltaic module further comprises: the two ends of the back plate close to the short side of the assembly are respectively provided with a through hole, and the lead bus bar is connected with a lead of the bypass diode and penetrates through the through holes to extend out of the surface of the back plate.
In some embodiments, the backing plate is a glass plate.
In some embodiments, the photovoltaic module further comprises: the photovoltaic module is provided with a first junction box, the first junction box is arranged on one side, close to the short side of the module, of the photovoltaic module, and a first bypass diode and a third bypass diode are arranged in the first junction box.
In some embodiments, the photovoltaic module further comprises: the second junction box is arranged on the other side, close to the short side of the assembly, of the photovoltaic assembly, and the second bypass diode and the fourth bypass diode are arranged in the second junction box.
In some embodiments, a first terminal and a second terminal are further arranged in the second junction box, the first terminal is used for leading out a first electrode wire of the photovoltaic module, and the second terminal is used for leading out a second electrode wire of the photovoltaic module.
In some embodiments, the photovoltaic module further comprises: the second junction box is arranged on the other side, close to the short side of the assembly, of the photovoltaic assembly, and the second bypass diode is arranged in the second junction box; the third junction box is arranged on the other side, close to the short side of the assembly, of the photovoltaic assembly, and the fourth bypass diode is arranged on the third junction box.
In some embodiments, a first terminal is further arranged in the second junction box, and the first terminal is used for leading out a first electrode wire of the photovoltaic module; and a second wiring terminal is further arranged in the third wiring box and used for leading out a second electrode wire of the photovoltaic module.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of an equivalent circuit of a photovoltaic module according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a photovoltaic module circuit arrangement according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a circuit diagram of a photovoltaic module according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a junction box location according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a junction box location according to an embodiment of the invention.
Detailed Description
Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.
A schematic diagram of a photovoltaic module according to an embodiment of the present invention is described below with reference to fig. 1-5.
As shown in fig. 1, is a schematic view of a photovoltaic module according to an embodiment of the present invention. The utility model discloses photovoltaic module 100 of embodiment includes first battery cluster group 1 and second battery cluster group 2.
The battery pack comprises a first battery string group 1, a second battery string group 2, a battery pack and a battery pack, wherein the first battery string group 1 and the second battery string group 2 are connected in series and are arranged along the short side direction of the pack, each battery string group comprises three battery strings 3 which are connected in parallel and are arranged along the short side direction of the pack, each battery string 3 comprises two battery substrings 4 which are connected in series and are arranged along the long side direction of the pack, and each battery substring 4 comprises a plurality of battery slices 5 which are equal; in each battery string group, three battery substrings 4 along the short side direction of the assembly form a first battery substring group 6, and the other three battery substrings 4 form a second battery substring group 7; each battery sub-string group is reversely connected with a bypass diode in parallel, and the four bypass diodes are arranged in a gap between the first battery string group 1 and the second battery string group 2 and are close to the short sides of the components.
Specifically, as shown in fig. 1, the photovoltaic module 100 includes two battery string sets connected in series, each battery string set is formed by connecting three battery strings 3 in parallel, each battery string 3 is connected in series with 12 sliced battery pieces 5, for example, because the current value of adopting a large-size battery piece assembly is very large, and the small-size battery piece is not easy to reach the module power requirement, in the embodiment of the present invention, a slice such as a half or a third battery piece is adopted, the internal power loss of the large-size battery piece can be reduced, and the circuit is arranged to connect three battery strings 3 in parallel, that is, the circuit arrangement of cutting two and three or cutting three and three is adopted, which is beneficial to improving the module output power. Fig. 2 is according to the utility model discloses a schematic diagram is laid to battery piece of an embodiment, as shown in fig. 2, with two battery string groups according to such mode of laying, circuit connection is simple, both can reduce the electric current of every battery string, reduces the circuit loss, can guarantee subassembly output again, also can not bring the change of equipment lectotype for the unit mount.
And each battery string group consists of two battery sub-string groups, each battery sub-string group is reversely connected with a bypass diode in parallel, each bypass diode can protect the battery piece 5 in the battery sub-string connected with the bypass diode in parallel, when a certain battery piece is shielded, the power of other battery pieces 5 reacting on the battery piece is reduced, so that the hot spot temperature of the photovoltaic module 100 is reduced, the bypass diode is reversely connected with the battery sub-string groups in parallel to prevent current from flowing back, and the photovoltaic module 100 is protected. And simultaneously, the utility model discloses four bypass diodes set up in the clearance of two battery cluster groups and be close to the subassembly minor face, and bypass diode's position corresponds with front bezel trompil position usually, sets up the tip near the subassembly, that is to say that the trompil position of backplate is located the both sides of backplate, compares in the intermediate position trompil, can reduce the probability of backplate fracture, improves the anti bearing capacity of backplate.
According to the utility model discloses a photovoltaic module 100, through adopting the section battery, can reduce the electric current of battery cluster, reduce the internal loss of circuit, and every battery cluster group is parallelly connected by three battery cluster 3 and is constituteed, adopt the section battery piece and carry out the parallel circuit design promptly, can avoid adopting the section battery for example half or the module output current reduction that the section battery caused of third, guarantee module output, through the reverse parallel bypass diode of every battery cluster group, can reduce photovoltaic module's hot spot temperature in order to protect photovoltaic module; and the four bypass diodes are arranged in the gap between the first battery string group and the second battery string group and along the short sides of the assembly, so that the through holes of the back plate can be arranged on two sides of the back plate when the junction box is connected, and compared with the through holes arranged in the middle, the possibility of cracking of the back plate, particularly the glass back plate of the double-sided assembly can be reduced, and the load resistance of the back plate is improved.
In some embodiments, the battery plates 5 are half of battery plates cut from a whole battery plate, and the number of the battery plates 5 of each battery sub-string 4 is 8-12.
For example, the photovoltaic module 100 employs one-half cell pieces, each cell sub-string 4 employs 12 one-half cell pieces, and the arrangement of the cell pieces 5 is shown in fig. 1. In the first battery string group 1 on the left side, the battery pieces 5 are consistent in direction and comprise six battery substrings 4 formed by connecting 12 half battery pieces in series, wherein two battery substrings 4 arranged along the long side direction of the assembly are connected in series to form one battery string 3, and the three battery strings 3 are connected in parallel to form the first battery string group 1. Similarly, in the second battery string group 2 on the right side, the battery piece 5 has the same direction, but the direction is opposite to the direction of the battery piece 5 in the first battery string group 1 on the left side, and the battery string group comprises six battery strings 4 formed by connecting 12 half battery pieces in series, wherein two battery strings 4 arranged in the long side direction of the module are connected in series to form one battery string 3, three battery strings 3 are connected in parallel to form the second battery string group 2, and the battery strings in the first battery string group 1 and the battery strings in the second battery string group 2 are connected in series.
In some embodiments, the battery plates 5 are one third of battery plates cut from a whole battery plate, and the number of battery plates of each battery sub-string 4 is 8-25.
For example, the photovoltaic module 100 employs one-third cell pieces, each cell sub-string 4 employs 18 one-third cell pieces, and the arrangement of the cell pieces 5 is shown in fig. 1. In the first battery string group 1 on the left side, the battery pieces 5 are consistent in direction and comprise six battery substrings 4 formed by connecting 18 one-third battery pieces in series, wherein two battery substrings 4 arranged along the long side direction of the assembly are connected in series to form one battery string 3, and the three battery strings 3 are connected in parallel to form the first battery string group 1. Similarly, in the second battery string group 2 on the right, the battery sheet 5 has the same direction, but the direction is opposite to the direction of the battery sheet 5 in the first battery string group 1 on the left, and the battery string group comprises six battery strings 4 formed by connecting 18 one-third battery sheets in series, wherein two battery strings 4 arranged in the long side direction of the module are connected in series to form one battery string 3, three battery strings 3 are connected in parallel to form the second battery string group 2, and the battery strings in the first battery string group 1 and the battery strings in the second battery string group 2 are connected in series.
In some embodiments, as shown in fig. 3, for a schematic diagram of a circuit according to an embodiment of the present invention, a first lead bus bar 8 extending parallel to the long side direction of the module is disposed between the first battery string set 1 and the second battery string set 2, and the first lead bus bar 8 is close to the first battery string set 1; in the first battery string set 1, the first battery sub-string set 6 is connected in reverse parallel with the first bypass diode 10 through the first lead bus bar 8, the first bypass diode 10 is disposed at one end of the first battery sub-string set 6 close to the short side of the module, the second battery sub-string set 7 is connected in reverse parallel with the second bypass diode 11 through the first lead bus bar 8, and the second bypass diode 11 is disposed at one end of the second battery sub-string set 7 close to the short side of the module.
Specifically, the first lead bus bar 8 can realize that the first battery sub-string group 6 and the second battery sub-string group 7 are respectively connected in parallel with the first bypass diode 10 and the second bypass diode 11 in an inverse direction, the first bypass diode 10 and the second bypass diode 11 can protect the battery pieces 5 in the battery sub-strings connected in parallel therewith, and the hot spot effect of the first battery sub-string group 6 and the second battery sub-string group 7 can be reduced to play a role in protecting the photovoltaic module 100.
And, the first lead bus bar 8 is generally a conductor made of a conductive material, and when there is overlap with the array of other battery pieces 5, the normal operation of the photovoltaic module 100 is affected, therefore, an insulating layer is provided between the first lead bus bar 8 and the array of battery pieces 5, the insulating layer may be provided in the overlapping region of the first lead bus bar 8 and the array of battery pieces 5, or may be provided in the surrounding region, to ensure the normal operation of the photovoltaic module 100, and the width of the insulating layer is at least two times greater than the width of the first lead bus bar 8 by the displacement length of the process error, for example, the difference between the width of the insulating layer and the width of the first lead bus bar 8 may be equal to 5mm by the conventional process error setting.
In some embodiments, as shown in fig. 3, a second lead bus bar 9 extending parallel to the long side direction of the module is provided between the first cell string group 1 and the second cell string group 2, the second lead bus bar 9 being close to the second cell string group 2; in the second battery string set 2, the first battery sub-string set 6 is connected in reverse parallel with a third bypass diode 12 through a second lead bus bar 9, the third bypass diode 12 is disposed at one end of the first battery sub-string set 6 near the short side of the module, the second battery sub-string set 7 is connected in reverse parallel with a fourth bypass diode 13 through the second lead bus bar 9, and the fourth bypass diode 13 is disposed at one end of the second battery sub-string set 7 near the short side of the module.
Specifically, an insulating layer may also be disposed between the second lead bus bar 9 and another conductive structure, or the structure of the second lead bus bar 9 is configured as an insulating layer wrapped outside the central wire, so as to ensure insulation between the second lead bus bar 9 and the cell array, and ensure normal operation of the photovoltaic module 100. The second lead bus bar 9 can also realize that the first battery sub-string group 6 and the second battery sub-string group 7 are respectively connected in parallel with the third bypass diode 12 and the fourth bypass diode 13 in an inverse manner, the third bypass diode 12 and the fourth bypass diode 13 can protect the battery pieces 5 connected in parallel therewith, and the hot spot effect of the first battery sub-string group 6 and the second battery sub-string group 7 can be reduced to play a role in protecting the photovoltaic module 100.
It should be noted that, too large thickness of each lead bus bar may affect the overall thickness of the photovoltaic module 100, too small thickness of the lead bus bar may affect the electrical performance of the lead bus bar, and too wide width of the lead bus bar may cause large occupied space, which increases the probability of electrical connection between the lead bus bar and the cell matrix, and too small width of the lead bus bar may affect the electrical connection characteristics between the lead bus bar and the bypass diode, so that the thickness of the lead bus bar in the preferred embodiment ranges from 0.05 mm to 0.15mm, for example, 0.10mm, and the width ranges from 1 mm to 5mm, for example, 3 mm.
In some embodiments, in the first cell string group 1, a first center bus bar 14 extending parallel to the short side direction of the module is provided between the first cell sub-string group 6 and the second cell sub-string group 7, and one end of the first center bus bar 14 is connected to the first lead bus bar 8. Each battery sub-string can be reversely connected with a bypass diode in parallel by connecting the first central bus bar 14 and the first lead bus bar 8, which is beneficial to reducing the design and process difficulty and has less influence on the normal work of the photovoltaic assembly 100.
In some embodiments, in the second cell string 2, a second center bus bar 15 parallel to the extending direction of the short side of the module is provided between the first cell sub-string 6 and the second cell sub-string 7, and one end of the second center bus bar 15 is connected to the second lead bus bar 9. Each battery sub-string group can be reversely connected with a bypass diode in parallel by connecting the second central bus bar 15 with the second lead bus bar 9, so that the design and process difficulty is reduced, and the influence on the normal work of the photovoltaic assembly 100 is small.
It should be noted that each central bus bar normally passes current, the cross-sectional area is not too small, the required thickness range is 0.2-0.4mm, such as 0.3mm, and the width range is 5-8mm, such as 6mm or 7 mm. Each of the center line bus bar and the lead bus bar can be formed in the same process, so that the effect of simplifying process steps is achieved.
In some embodiments, the photovoltaic module 100 further includes a back plate disposed on the lower surface of the cell 5, through holes 16 are respectively disposed at two ends of the back plate near the short side of the module, and the lead bus bar is connected to the lead wires of the bypass diodes and penetrates through the through holes to protrude out of the surface of the back plate.
Specifically, through arranging the through holes 16 at two ends of the back plate, such as a glass plate, compared with arranging the through holes 16 at the middle position, the possibility of cracking of the back plate, particularly the double-sided assembly glass back plate, can be reduced, and the load resistance of the back plate is favorably improved. And the process is simple and easy to realize.
In some embodiments, as shown in fig. 4, a schematic diagram of a junction box is shown according to an embodiment of the present invention. The photovoltaic module 100 further comprises a first junction box 17, the first junction box 17 is arranged on one side of the photovoltaic module 100 close to the short side of the module, and a first bypass diode 10 and a third bypass diode 12 are arranged in the first junction box 17. Two bypass diodes are arranged in the first junction box 17, so that the installation is convenient, and the number of the junction boxes is reduced. In some embodiments, the first terminal box 17 may be a cordless terminal box.
In the embodiment, a three-part junction box or a two-part junction box can be adopted.
For example, as shown in fig. 4, the photovoltaic module 100 further includes a second junction box 18, the second junction box 18 is disposed on the other side of the photovoltaic module 100 near the short side of the module, and a second bypass diode 11 and a fourth bypass diode 13 are disposed in the second junction box 18.
Specifically, a first terminal 20 and a second terminal 21 are further disposed in the second junction box 18, the first terminal 20 is used for leading out a first electrode wire of the photovoltaic module 100, and the second terminal 21 is used for leading out a second electrode wire of the photovoltaic module 100. The design of the bipartite junction box is realized.
In some embodiments, as shown in fig. 5, the position of the junction box is schematically illustrated according to an embodiment of the present invention. The photovoltaic module 100 further comprises a second junction box 18, the second junction box 18 is arranged on the other side, close to the short side of the module, of the photovoltaic module 100, and a second bypass diode 11 is arranged in the second junction box 18; and the third junction box 19 is arranged on the other side of the photovoltaic module 100 close to the short side of the module, and the fourth bypass diode 13 is arranged on the third junction box 19.
Specifically, a first terminal 20 is further disposed in the second junction box 18, and the first terminal 20 is used for leading out a first electrode wire of the photovoltaic module 100; a second terminal 21 is further arranged in the third junction box 19, and the second terminal 21 is used for leading out a second electrode wire of the photovoltaic module 100. The design of the three-split junction box is realized.
In summary, according to the photovoltaic module 100 of the embodiment of the present invention, by using the sliced battery, for example, one third or one half sliced battery piece, the current of the battery string can be reduced, the internal loss of the circuit is reduced, and the first battery string group 1 and the second battery string group 2 are connected in series, each battery string group is formed by connecting three battery strings 3 in parallel, that is, by using the sliced battery piece and performing the parallel circuit design, the reduction of the module output current caused by using the sliced battery can be avoided, the module output power is ensured, and the hot spot temperature of the photovoltaic module can be reduced to protect the photovoltaic module through the reverse parallel bypass diode of each battery string group; and four bypass diodes are arranged in the gap between the first battery string group 1 and the second battery string group 2 and along the short sides of the assembly, so that the backboard through holes 16 can be arranged on two sides of the backboard when the junction box is connected, and compared with the through holes 16 arranged in the middle position, the possibility of cracking of the backboard, particularly the glass backboard of the double-sided assembly can be reduced, and the load-resisting capacity of the backboard can be improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (16)
1. A photovoltaic module, comprising:
the battery pack comprises a first battery string group and a second battery string group which are connected in series and arranged along the short side direction of the assembly, wherein each battery string group comprises three battery strings which are connected in parallel and arranged along the short side direction of the assembly, each battery string comprises two battery sub-strings which are connected in series and arranged along the long side direction of the assembly, each battery sub-string comprises a plurality of battery pieces which are equal in number and connected in series, and each battery piece is a battery piece formed by cutting a whole battery piece;
in each battery string group, three battery substrings along the short side direction of the assembly form a first battery substring group, and the other three battery substrings form a second battery substring group;
each battery sub-string group is reversely connected with a bypass diode in parallel, and the four bypass diodes are arranged in a gap between the first battery string group and the second battery string group and are close to the short sides of the components.
2. The photovoltaic module according to claim 1, wherein the cell slice is a half cell slice cut from a whole cell slice, and the number of the cell slices of each cell sub-string is 8-12.
3. The photovoltaic module of claim 2, wherein the number of cells per cell sub-string is 12.
4. The photovoltaic module according to claim 1, wherein the cell pieces are one third of the cell pieces cut from a whole cell piece, and the number of the cell pieces of each cell sub-string is 8-25.
5. The photovoltaic module of claim 4, wherein the number of cells per cell sub-string is 18.
6. The photovoltaic module of claim 1,
a first lead bus bar extending parallel to the long side direction of the assembly is arranged between the first battery string group and the second battery string group, and the first lead bus bar is close to the first battery string group;
in the first battery string group, the first battery sub-string group is reversely connected with a first bypass diode in parallel through the first lead bus bar, the first bypass diode is arranged at one end, close to the short side of the assembly, of the first battery sub-string group, the second battery sub-string group is reversely connected with a second bypass diode in parallel through the first lead bus bar, and the second bypass diode is arranged at one end, close to the short side of the assembly, of the second battery sub-string group.
7. The photovoltaic module of claim 6,
a second lead bus bar extending parallel to the long side direction of the assembly is arranged between the first battery string group and the second battery string group, and the second lead bus bar is close to the second battery string group;
in the second battery string group, the first battery sub-string group is reversely connected with a third bypass diode in parallel through the second lead bus bar, the third bypass diode is arranged at one end, close to the short side of the assembly, of the first battery sub-string group, the second battery sub-string group is reversely connected with a fourth bypass diode in parallel through the second lead bus bar, and the fourth bypass diode is arranged at one end, close to the short side of the assembly, of the second battery sub-string group.
8. The photovoltaic module of claim 6,
in the first battery string group, a first central bus bar extending in parallel to the short side direction of the assembly is arranged between the first battery sub string group and the second battery sub string group, and one end of the first central bus bar is connected with the first lead bus bar.
9. The photovoltaic module of claim 7,
in the second battery string group, a second central bus bar extending in parallel to the short side direction of the assembly is arranged between the first battery sub string group and the second battery sub string group, and one end of the second central bus bar is connected with the second lead bus bar.
10. The photovoltaic module of claim 7, further comprising:
the two ends of the back plate close to the short side of the assembly are respectively provided with a through hole, and the lead bus bar is connected with a lead of the bypass diode and penetrates through the through holes to extend out of the surface of the back plate.
11. The photovoltaic module of claim 10 wherein the backsheet is a glass sheet.
12. The photovoltaic module of claim 10, further comprising:
the photovoltaic module is provided with a first junction box, the first junction box is arranged on one side, close to the short side of the module, of the photovoltaic module, and a first bypass diode and a third bypass diode are arranged in the first junction box.
13. The photovoltaic module of claim 12, further comprising:
the second junction box is arranged on the other side, close to the short side of the assembly, of the photovoltaic assembly, and the second bypass diode and the fourth bypass diode are arranged in the second junction box.
14. The photovoltaic module according to claim 13, wherein a first terminal and a second terminal are further disposed in the second junction box, the first terminal is used for leading out a first electrode wire of the photovoltaic module, and the second terminal is used for leading out a second electrode wire of the photovoltaic module.
15. The photovoltaic module of claim 12, further comprising:
the second junction box is arranged on the other side, close to the short side of the assembly, of the photovoltaic assembly, and the second bypass diode is arranged in the second junction box;
the third junction box is arranged on the other side, close to the short side of the assembly, of the photovoltaic assembly, and the fourth bypass diode is arranged on the third junction box.
16. The photovoltaic module of claim 15,
a first wiring terminal is further arranged in the second wiring box and used for leading out a first electrode wire of the photovoltaic module;
and a second wiring terminal is further arranged in the third wiring box and used for leading out a second electrode wire of the photovoltaic module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020160625.5U CN211480048U (en) | 2020-02-11 | 2020-02-11 | Photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020160625.5U CN211480048U (en) | 2020-02-11 | 2020-02-11 | Photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211480048U true CN211480048U (en) | 2020-09-11 |
Family
ID=72360246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020160625.5U Active CN211480048U (en) | 2020-02-11 | 2020-02-11 | Photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211480048U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635605A (en) * | 2020-12-28 | 2021-04-09 | 常州时创能源股份有限公司 | Preparation method of M10 cell photovoltaic module |
| CN112635606A (en) * | 2020-12-28 | 2021-04-09 | 常州时创能源股份有限公司 | Preparation method of M12 cell photovoltaic module |
| CN112803888A (en) * | 2021-04-14 | 2021-05-14 | 浙江晶科能源有限公司 | Photovoltaic module |
| WO2022057944A1 (en) * | 2020-09-18 | 2022-03-24 | 深圳市中旭新能源有限公司 | Regional intelligent optimized photovoltaic module and power generation system thereof |
| DE102021103099A1 (en) | 2021-02-10 | 2022-08-11 | Hanwha Q Cells Gmbh | Photovoltaic module and a method for its manufacture |
-
2020
- 2020-02-11 CN CN202020160625.5U patent/CN211480048U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022057944A1 (en) * | 2020-09-18 | 2022-03-24 | 深圳市中旭新能源有限公司 | Regional intelligent optimized photovoltaic module and power generation system thereof |
| CN112635605A (en) * | 2020-12-28 | 2021-04-09 | 常州时创能源股份有限公司 | Preparation method of M10 cell photovoltaic module |
| CN112635606A (en) * | 2020-12-28 | 2021-04-09 | 常州时创能源股份有限公司 | Preparation method of M12 cell photovoltaic module |
| DE102021103099A1 (en) | 2021-02-10 | 2022-08-11 | Hanwha Q Cells Gmbh | Photovoltaic module and a method for its manufacture |
| CN112803888A (en) * | 2021-04-14 | 2021-05-14 | 浙江晶科能源有限公司 | Photovoltaic module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211480048U (en) | Photovoltaic module | |
| CN210926043U (en) | Photovoltaic module | |
| AU2017417637B2 (en) | Solar cell photovoltaic module and solar cell photovoltaic array | |
| CN211828789U (en) | Photovoltaic module | |
| CN214505507U (en) | Photovoltaic module | |
| CN215644532U (en) | Photovoltaic module | |
| CN206099880U (en) | Photovoltaic module | |
| CN211828801U (en) | Photovoltaic module | |
| CN214505517U (en) | Photovoltaic module | |
| CN211480063U (en) | Photovoltaic module | |
| CN211480061U (en) | Photovoltaic module | |
| CN211828799U (en) | Photovoltaic module | |
| CN215771175U (en) | Photovoltaic module | |
| CN211828786U (en) | Photovoltaic module | |
| CN211480062U (en) | Photovoltaic module | |
| CN215184014U (en) | Photovoltaic module | |
| CN211480064U (en) | Photovoltaic module | |
| CN212342649U (en) | Photovoltaic module | |
| CN214505505U (en) | Photovoltaic module | |
| CN211828798U (en) | Photovoltaic module | |
| CN210926042U (en) | Photovoltaic module | |
| CN114927591A (en) | Photovoltaic module | |
| CN210379066U (en) | Photovoltaic module | |
| CN110600566B (en) | Photovoltaic module and preparation method thereof | |
| CN210156389U (en) | Half series-parallel back contact photovoltaic module |
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, deer mountain road, Suzhou high tech Zone, 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, deer mountain road, Suzhou high tech Zone, 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 |