CN204031066U - Photovoltaic junction box and the photovoltaic module thereof with photovoltaic module substring level optimizational function - Google Patents
Photovoltaic junction box and the photovoltaic module thereof with photovoltaic module substring level optimizational function Download PDFInfo
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- CN204031066U CN204031066U CN201420492787.3U CN201420492787U CN204031066U CN 204031066 U CN204031066 U CN 204031066U CN 201420492787 U CN201420492787 U CN 201420492787U CN 204031066 U CN204031066 U CN 204031066U
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- photovoltaic module
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- 238000005457 optimization Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 230000013011 mating Effects 0.000 abstract 1
- 239000000306 component Substances 0.000 description 9
- 238000010248 power generation Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a kind of photovoltaic junction box and photovoltaic module thereof with photovoltaic module substring level optimizational function, photovoltaic junction box comprises box body and a plurality of photovoltaic module substring level power optimization device, is provided with two wiring outputs and many group binding post groups on box body; Wherein, every group of binding post group, it is corresponding one by one with the assembly substring of photovoltaic module, and has positive terminal and negative terminal, and positive terminal is for the positive pole of coupling assembling substring, and negative terminal is for the negative pole of coupling assembling substring; Photovoltaic module substring level power optimization utensil has input wires port group and output connection port group, input wires port group comprises anodal input wires port and negative pole input wires port, anodal input wires port is connected with corresponding positive terminal, and negative pole input wires port is connected with corresponding negative terminal.The utility model not only can reduce not mating and the impact on photovoltaic module energy output such as assembly shade blocks between electrical component performance, and can reduce the hot spot failure risk of photovoltaic module.
Description
Technical Field
The utility model relates to a photovoltaic terminal box and photovoltaic module thereof with photovoltaic module sublevel optimization function.
Background
At present, the solar energy industry is vigorously developed in the world as a low-carbon renewable energy source, and the installation amount of each country is increased year by year. The photovoltaic module in the photovoltaic system is the most important core component, and takes on the function of converting light energy into electric energy. The conventional photovoltaic module usually adopts a conventional junction box design, a certain number of diodes are configured in the junction box, and the diodes only play a role in protecting hot spot failure of the module, and usually have no function of optimizing performance.
In system design, photovoltaic modules with the same or completely similar electrical performance parameters are generally selected to be connected in series and parallel to form a system. If unmatched assemblies are selected or shadow shielding occurs at assembly installation positions, the shielded assemblies are influenced, the generated energy is reduced, other assemblies in the same circuit are influenced, the output of a system array is greatly reduced, and the generated energy of the system is seriously influenced. Meanwhile, an MPPT maximum power point tracking function is generally provided in a photovoltaic system, and an inverter in the system generally performs automatic tracking of a maximum power point so as to work a photovoltaic module at the maximum power point position, thereby maximizing power generation. The larger the number of MPPTs in a system of the same capacity size, the larger the gain on the power generation amount.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a photovoltaic terminal box with photovoltaic module sublevel optimization function, it not only can reduce the influence to photovoltaic module generated energy such as mismatching between the subassembly electrical property and subassembly shadow shelter from, can reduce photovoltaic module's hot spot inefficacy risk moreover, has promoted photovoltaic module's in complicated occasion, different installation environment suitability and reliability widely, improves its generated energy.
In order to solve the technical problem, the technical scheme of the utility model is that: a photovoltaic junction box with a photovoltaic module sub-cascade optimization function comprises a box body and a plurality of photovoltaic module sub-cascade power optimizers, wherein two wiring output ends and a plurality of groups of wiring column groups are arranged on the box body; wherein,
each group of the lug groups corresponds to the assembly substrings of the photovoltaic assembly one by one and is provided with a positive terminal and a negative terminal, the positive terminal is used for connecting the positive poles of the assembly substrings, and the negative terminal is used for connecting the negative poles of the assembly substrings;
the photovoltaic module sub-string level power optimizer is also in one-to-one correspondence with the photovoltaic module sub-strings and is provided with an input wiring port group and an output wiring port group, the input wiring port group comprises a positive input wiring port and a negative input wiring port, the positive input wiring port is connected with a corresponding positive wiring terminal, the negative input wiring port is connected with a corresponding negative wiring terminal, the output wiring port group comprises a positive output wiring port and a negative output wiring port, the photovoltaic module sub-string level power optimizer is sequentially connected in series through a connecting body between the output wiring port groups, and the negative output wiring port of the first photovoltaic component sub-cascade power optimizer is electrically connected with one of the wiring output ends, and the positive output wiring port of the last photovoltaic component sub-cascade power optimizer is electrically connected with the other wiring output end.
Further in order to make its connection switch on conveniently and need not the connection of working a telephone switchboard in addition, the box body in be provided with a plurality of installation positions, photovoltaic module substring level power optimizer installs in corresponding installation position, all is provided with the card notch on positive input wiring port, negative pole input wiring port, positive output wiring port and the negative pole output wiring port of photovoltaic module substring level power optimizer, positive terminal, negative terminal, connector and the wiring output on the box body corresponding position all be provided with the card protruding corresponding with the card notch, realize mutual conducting connection between the two through the cooperation of card protruding and card notch.
Furthermore, the wiring terminal groups are provided with three groups, and the photovoltaic module substring-level power optimizer is provided with three groups.
The utility model also provides a photovoltaic module, it adopts this photovoltaic terminal box that has photovoltaic module sublevel optimization function to have a plurality of subassembly substrings that are connected with the post group one-to-one of photovoltaic terminal box.
After the technical scheme is adopted, the photovoltaic module sub-string level power optimizer in the photovoltaic junction box of the utility model has the photovoltaic module sub-string level optimization function, the sub-string level optimization function decomposes the module sub-strings in the photovoltaic module into reasonable number, at present, the battery slice in each photovoltaic module is generally divided into 3 module sub-strings, the photovoltaic module sub-string level power optimizer can increase the MPPT number in the system, the output current and the output voltage of each module sub-string in the photovoltaic module are adjusted and optimized, thereby generating the best power, leading the module to achieve the best balance of power generation gain and cost, obviously improving the power generation amount of the module in the system, solving the problems of obviously reducing the influence of mismatch between the electrical performance of the module, module shadow shielding and the like on the power generation amount of the photovoltaic system, and simultaneously reducing the hot spot failure risk of the module, the applicability and the reliability of the photovoltaic module in complex occasions and different installation environments are greatly improved. Meanwhile, the terminal box and the component thereof have the function of optimizing the grade of the battery slice substring, so that the generating capacity of the system can be effectively improved.
Drawings
Fig. 1 is an internal schematic view of a photovoltaic junction box with a photovoltaic module sub-cascade optimization function according to the present invention;
fig. 2 is a schematic structural diagram of the photovoltaic module of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1, a photovoltaic junction box with photovoltaic module sub-cascade optimization function comprises a box body 1 and a plurality of photovoltaic module sub-cascade power optimizers 2, wherein two junction output ends 1-1 and a plurality of groups of junction post groups are arranged on the box body 1; wherein,
each group of the lug groups corresponds to the assembly substrings of the photovoltaic assembly 3 one by one and is provided with a positive terminal 1-2 and a negative terminal 1-3, the positive terminal 1-2 is used for connecting the positive electrodes of the assembly substrings, and the negative terminal 1-3 is used for connecting the negative electrodes of the assembly substrings;
the photovoltaic module sub-string level power optimizer 2 is also in one-to-one correspondence with the module sub-strings of the photovoltaic module 3 and is provided with an input wiring port group and an output wiring port group, the input wiring port group comprises a positive input wiring port 2-1 and a negative input wiring port 2-2, the positive input wiring port 2-1 is connected with the corresponding positive wiring terminal 1-2, the negative input wiring port 2-2 is connected with the corresponding negative wiring terminal 1-3, the output wiring port group comprises a positive output wiring port 2-3 and a negative output wiring port 2-4, the photovoltaic module sub-string level power optimizer 2 is sequentially connected in series through a connecting body 4 between the output wiring port groups, and the negative output wiring port 2-4 of the first photovoltaic module sub-string level power optimizer 2 is electrically connected with one wiring output end 1-1, and the positive output wiring port 2-3 of the last photovoltaic module sub-string level power optimizer 2 is electrically connected with the other wiring output end 1-1.
As shown in fig. 1, a plurality of installation positions are arranged in a box body 1, a photovoltaic module sub-string level power optimizer 2 is installed in the corresponding installation positions, clamping notches 23 are respectively arranged on a positive input wiring port 2-1, a negative input wiring port 2-2, a positive output wiring port 2-3 and a negative output wiring port 2-4 of the photovoltaic module sub-string level power optimizer 2, clamping protrusions corresponding to the clamping notches 23 are respectively arranged on the corresponding positions of the positive wiring terminal 1-2, the negative wiring terminal 1-3, the connecting body 4 and the wiring output end 1-1 on the box body 1, and mutual conduction connection between the clamping protrusions and the clamping notches 23 is achieved through matching of the clamping protrusions and the clamping notches 23.
The terminal groups are provided with three groups, and the photovoltaic module sub-string level power optimizers 2 are provided with three groups, but the terminal groups are not limited to three groups, and different numbers of the terminal groups and the corresponding numbers of the photovoltaic module sub-string level power optimizers 2 can be selected according to the module specification.
As shown in fig. 2, a photovoltaic module employs a photovoltaic junction box having a photovoltaic module sub-string level optimization function, and has a plurality of module sub-strings connected to a plurality of terminal groups of the photovoltaic junction box in a one-to-one correspondence.
As shown in fig. 1, a wiring window 1-4 for the input wiring of the component sub-string is designed on the box body 1, and the input wiring of the component sub-string is correspondingly connected to a wiring terminal below the input window 1-4; positions convenient for mounting and fixing the photovoltaic module sub-string power optimizer 2 are designed on the box body, and a small bulge-clamping bulge is designed on each position, so that the photovoltaic module sub-string power optimizer 2 is convenient to position, place and fix; after the photovoltaic module sub-string level power optimizer 2 is placed and fixed, the wiring ports of the photovoltaic module sub-string level power optimizer 2 can be conducted with other corresponding ports, namely, the wiring column group is connected with the input wiring port group corresponding to the photovoltaic module sub-string level power optimizer 2 and conducted, and the connection between the photovoltaic module sub-string level power optimizer 2 and the photovoltaic module sub-string level power optimizer 2 is conducted through the connecting body 4.
Figure 1 shows a sub-string power optimizer 2 of a photovoltaic module placed in a box 1 fixed to a junction box, the size and the dimension of the power optimizer are matched with the installation position and the space dimension in the box body 1, four clamping grooves 23 which are convenient to position and install are arranged on the photovoltaic module sub-string power optimizer 2, the main working principle of the photovoltaic module sub-string power optimizer 2 is that, the corresponding positive input wiring port 2-1, negative input wiring port 2-2, positive output wiring port 2-3 and negative output wiring port 2-4 are designed on the box body, after being arranged on the box body, the connection ports are in conductive connection with the component substrings, the photovoltaic component substring power optimizer 2 is in conductive connection with the photovoltaic component substring power optimizer 2, and the photovoltaic component substring power optimizer 2 is in conductive connection with the connection output end 1-1.
The box body 1 is also provided with a junction box cover, the conventional sealing and protecting functions are realized, the use function is satisfied, no special requirement is required, the structure of the internal utility model is not shown in the drawing, and the box cover is not drawn.
As shown in FIG. 2, in the photovoltaic module installed by the junction box, the module sub-strings are output in a circuit laminating mode of six-electrode output, and the six electrodes are connected to corresponding positions of the junction box through an input window of the junction box. And specific circuit connection is formed between corresponding sub-strings of the assembly and the photovoltaic assembly sub-string level power optimizer 2, so that the function of optimizing the performance of the battery string is realized.
The photovoltaic module sub-string level power optimizer 2 can adopt VT8020/VT8024 photovoltaic module sub-string level optimizer intelligent chips produced by Meixin semiconductor company.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages to be solved by the present invention, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. The utility model provides a photovoltaic terminal box with photovoltaic module sublink optimizing capability, includes box body (1), its characterized in that: the photovoltaic module power optimization device comprises a box body (1) and is characterized by further comprising a plurality of photovoltaic module sub-cascade power optimizers (2), wherein two wiring output ends (1-1) and a plurality of groups of wiring column sets are arranged on the box body (1); wherein,
each group of the terminal post groups corresponds to the component substrings of the photovoltaic components (3) one by one and is provided with a positive terminal post (1-2) and a negative terminal post (1-3), the positive terminal post (1-2) is used for connecting the positive pole of the component substrings, and the negative terminal post (1-3) is used for connecting the negative pole of the component substrings;
the photovoltaic module sub-string power optimizer (2) is in one-to-one correspondence with the module sub-strings of the photovoltaic module (3) and is provided with an input wiring port group and an output wiring port group, the input wiring port group comprises a positive input wiring port (2-1) and a negative input wiring port (2-2), the positive input wiring port (2-1) is connected with the corresponding positive wiring terminal (1-2), the negative input wiring port (2-2) is connected with the corresponding negative wiring terminal (1-3), the output wiring port group comprises a positive output wiring port (2-3) and a negative output wiring port (2-4), the photovoltaic module sub-string power optimizer (2) is sequentially connected in series through a connecting body (4) between the output wiring port groups, and the negative output wiring port (2-4) of the first photovoltaic module sub-string power optimizer (2) is connected with one of the photovoltaic module sub-string power optimizer (2) The line output ends (1-1) are electrically connected, and the positive output wiring port (2-3) of the last photovoltaic module sub-string level power optimizer (2) is electrically connected with the other wiring output end (1-1).
2. The photovoltaic junction box with photovoltaic module sub-cascade optimization function of claim 1, wherein: the photovoltaic module sub-cascade power optimizer is characterized in that a plurality of installation positions are arranged in the box body (1), the photovoltaic module sub-cascade power optimizer (2) is installed in the corresponding installation positions, clamping notches (23) are formed in a positive input wiring port (2-1), a negative input wiring port (2-2), a positive output wiring port (2-3) and a negative output wiring port (2-4) of the photovoltaic module sub-cascade power optimizer (2), clamping protrusions corresponding to the clamping notches (23) are arranged at corresponding positions of the positive wiring terminal (1-2), the negative wiring terminal (1-3), the connector (4) and the wiring output end (1-1) on the box body (1), and mutual conduction connection between the clamping protrusions and the clamping notches (23) is achieved through matching of the clamping protrusions and the clamping notches (23).
3. The photovoltaic junction box with photovoltaic module sub-cascade optimization function of claim 1, wherein: the wiring terminal groups are provided with three groups, and the photovoltaic module sub-cascade power optimizer (2) is provided with three groups.
4. A photovoltaic module, characterized by: the photovoltaic junction box with the photovoltaic component sub-string level optimization function is adopted, and the photovoltaic junction box is provided with a plurality of component sub-strings which are connected with the photovoltaic junction box in a one-to-one correspondence mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492787.3U CN204031066U (en) | 2014-08-28 | 2014-08-28 | Photovoltaic junction box and the photovoltaic module thereof with photovoltaic module substring level optimizational function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492787.3U CN204031066U (en) | 2014-08-28 | 2014-08-28 | Photovoltaic junction box and the photovoltaic module thereof with photovoltaic module substring level optimizational function |
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| CN204031066U true CN204031066U (en) | 2014-12-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184408A (en) * | 2014-08-28 | 2014-12-03 | 常州天合光能有限公司 | Photovoltaic junction box with photovoltaic module substring level optimizing function and photovoltaic module thereof |
| CN107846038A (en) * | 2017-09-15 | 2018-03-27 | 珠海格力电器股份有限公司 | Photovoltaic wiring device, power optimization system and method |
| CN110729964A (en) * | 2018-07-17 | 2020-01-24 | 浙江英达威芯电子有限公司 | Photovoltaic system and photovoltaic module thereof |
-
2014
- 2014-08-28 CN CN201420492787.3U patent/CN204031066U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184408A (en) * | 2014-08-28 | 2014-12-03 | 常州天合光能有限公司 | Photovoltaic junction box with photovoltaic module substring level optimizing function and photovoltaic module thereof |
| CN107846038A (en) * | 2017-09-15 | 2018-03-27 | 珠海格力电器股份有限公司 | Photovoltaic wiring device, power optimization system and method |
| CN107846038B (en) * | 2017-09-15 | 2019-12-31 | 珠海格力电器股份有限公司 | Photovoltaic wiring device, power optimization system and method |
| CN110729964A (en) * | 2018-07-17 | 2020-01-24 | 浙江英达威芯电子有限公司 | Photovoltaic system and photovoltaic module thereof |
| CN110729964B (en) * | 2018-07-17 | 2021-09-21 | 浙江英达威芯电子有限公司 | Photovoltaic system and photovoltaic module thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: TRINASOLAR Co.,Ltd. Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee before: trina solar Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: trina solar Ltd. Address before: Tianhe Electronic Industrial Park Road 213022 north of Jiangsu Province, Changzhou City, No. 2 Patentee before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. |
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| CP03 | Change of name, title or address |