CN114650006A - Photovoltaic module convenient to arrange - Google Patents
Photovoltaic module convenient to arrange Download PDFInfo
- Publication number
- CN114650006A CN114650006A CN202210306303.0A CN202210306303A CN114650006A CN 114650006 A CN114650006 A CN 114650006A CN 202210306303 A CN202210306303 A CN 202210306303A CN 114650006 A CN114650006 A CN 114650006A
- Authority
- CN
- China
- Prior art keywords
- battery
- photovoltaic module
- series
- shunt
- battery strings
- 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.)
- Pending
Links
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000011900 installation process Methods 0.000 description 3
- 230000000739 chaotic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a photovoltaic module convenient to arrange, which comprises a first battery unit and a second battery unit, wherein the first battery unit comprises a plurality of first battery strings, the second battery unit comprises a plurality of second battery strings, the first battery strings and the second battery strings both comprise a plurality of unit battery pieces connected in series, a plurality of junction boxes are connected and arranged between the first battery unit and the second battery unit, a first shunt diode and a second shunt diode are arranged inside each junction box, the first shunt diodes in the plurality of junction boxes are connected in series through first connecting wires, and the second shunt diodes in the plurality of junction boxes are connected in series through second connecting wires; the photovoltaic module is formed by connecting a plurality of groups of first battery strings and second battery strings, so that the first battery strings and the second battery strings which are connected in series can be prevented from generating hot spot effect when being shielded by an object, and the condition that unit battery pieces in the photovoltaic module are burnt out is avoided.
Description
Technical Field
The invention relates to the technical field of photovoltaic industry, in particular to a photovoltaic module convenient to arrange.
Background
In the solar cell module, the shaded solar cell module in the serial cell branch is used as a load to consume energy generated by other solar cell modules with illumination, and the shaded solar cell module generates heat at the moment, which is a hot spot effect. The heat generated by this effect can severely damage the photovoltaic module.
Secondly, the existing photovoltaic modules are both positive and negative, the length of a lead is long when the positive and negative electrodes are connected in the system installation process, the field layout is disordered, meanwhile, the increase of the length of the lead is accompanied with the improvement of the installation cost, in addition, the photovoltaic modules cannot be applied when special requirements are provided for the installation direction in certain special installation places such as roofs, curtain walls and the like, at this time, two types of modules with opposite positive and negative electrodes are required to be additionally designed, commonly called AB pieces, but the product management is difficult.
Disclosure of Invention
The invention aims to provide a photovoltaic module convenient to arrange so as to solve the problems in the background.
The purpose of the invention can be realized by the following technical scheme:
a photovoltaic module convenient to arrange comprises a first battery unit and a second battery unit, wherein a plurality of junction boxes are connected between the first battery unit and the second battery unit;
the first battery unit comprises a plurality of first battery strings, and the second battery unit comprises a plurality of second battery strings;
and a first shunt diode and a second shunt diode are arranged in the junction box.
As a further scheme of the invention: the first battery strings are respectively connected with first shunt diodes inside the junction boxes in series;
the second battery strings are respectively connected with second shunt diodes in the junction boxes in series.
As a further scheme of the invention: the first shunt diode and the second shunt diode are arranged in the junction box in a centrosymmetric mode.
As a further scheme of the invention: the first shunt diodes in the plurality of junction boxes are connected in series through first connecting wires;
and the second shunt diodes in the plurality of junction boxes are connected in series through second wiring.
As a further scheme of the invention: the first battery string and the second battery string both comprise a plurality of unit battery pieces connected in series.
As a further scheme of the invention: the positive end of the first connection wire and the negative end of the second connection wire are positioned on the same side;
the negative terminal of the first connection wire and the positive terminal of the second connection wire are positioned on the same side.
The invention has the beneficial effects that:
(1) according to the photovoltaic module, the first battery strings and the second battery strings are connected to form a plurality of groups, so that the first battery strings and the second battery strings which are connected in series can be prevented from generating a hot spot effect when being shielded by an object, and the condition that unit battery pieces in the photovoltaic module are burnt out is avoided;
(2) this photovoltaic module is through setting up the positive negative pole of two connections relatively for this photovoltaic module's both sides all are provided with positive terminal and negative pole end, and in the installation, the effectual photovoltaic module connecting wire overall arrangement of having solved is chaotic, the increase of wire length, the problem that the installation cost promoted, simultaneously, need not to make AB spare, has improved the production efficiency of product.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a circuit schematic of the present invention;
FIG. 2 is a prior art circuit schematic;
FIG. 3 is a first prior art electrical connection schematic;
FIG. 4 is a prior art circuit connection diagram two;
FIG. 5 is a prior art circuit connection diagram three;
FIG. 6 is a first schematic diagram of the circuit of the present invention;
FIG. 7 is a second schematic circuit diagram of the present invention;
FIG. 8 is a third schematic circuit diagram of the present invention.
In the figure: 1. a first battery cell; 11. a first battery string; 2. a second battery cell; 21. a second battery string; 3. a unit cell; 4. a first shunt diode; 41. a first wiring; 5. a second shunt diode; 51. a second wiring; 6. a junction box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the photovoltaic module of the present invention includes a first battery unit 1 and a second battery unit 2, wherein the first battery unit 1 includes a plurality of first battery strings 11, the second battery unit 2 includes a plurality of second battery strings 21, and each of the first battery strings 11 and the second battery strings 21 includes a plurality of unit cells 3 connected in series.
A plurality of junction boxes 6 are connected between the first battery unit 1 and the second battery unit 2, a first shunt diode 4 and a second shunt diode 5 are arranged inside each junction box 6, the first shunt diode 4 and the second shunt diode 5 are arranged in the junction box 6 in a central symmetry manner, then the first shunt diodes 4 in the junction boxes 6 are connected in series through first connecting wires 41, and the second shunt diodes 5 in the junction boxes 6 are connected in series through second connecting wires 51;
finally, the plurality of first battery strings 11 are respectively connected in series with the first shunt diodes 4 inside the plurality of junction boxes 6; then, the plurality of second battery strings 21 are respectively connected with the second shunt diodes 5 in the plurality of junction boxes 6 in series;
the photovoltaic module is formed by connecting a plurality of groups of first battery strings 11 and second battery strings 21, so that the first battery strings 11 and the second battery strings 21 which are connected in series can be ensured not to generate hot spot effect when being shielded by an object, and the burning-out of the unit battery pieces 3 in the photovoltaic module is avoided;
the positive end of the first connection wire 41 and the negative end of the second connection wire 51 in the photovoltaic module are positioned on the same side of the photovoltaic module; the negative terminal of the first wire 41 and the positive terminal of the second wire 51 are located at the other side of the photovoltaic module.
The photovoltaic module receives light source irradiation on a single side, splicing, wire connection and the like are needed in the installation process of the photovoltaic module, a conventional photovoltaic module is shown in figure 2, one side of the conventional photovoltaic module is a negative electrode end, and the other side of the conventional photovoltaic module is a positive electrode end, the conventional photovoltaic module is often longer in wire length when the positive electrode and the negative electrode are connected in the system installation process, the conventional photovoltaic module is easily disordered in layout as shown in figures 3 and 4, meanwhile, the wire length is increased along with the improvement of installation cost, and secondly, the conventional photovoltaic module can be arranged according to the figure 5, but the method can cause the upside-down arrangement of the upper row of modules, and places with special requirements on the installation direction, such as roofs, curtain walls and the like, cannot be suitable for places with special requirements on the installation direction, and at this time, two modules with opposite positive electrodes and negative electrodes need to be additionally designed, the conventional photovoltaic module is called as an AB element, and causes great difficulty in product management;
and this photovoltaic module is through setting up the positive negative pole of two connections relatively for this photovoltaic module's both sides all are provided with positive terminal and negative pole end, and in the installation, the effectual photovoltaic module connecting wire overall arrangement of having solved is chaotic, the increase of wire length, the problem that the installation cost promoted, simultaneously, need not to make AB spare, has improved the production efficiency of product, like figure 6, figure 7 and figure 8.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (4)
1. The photovoltaic module convenient to arrange is characterized by comprising a first battery unit (1) and a second battery unit (2), wherein a plurality of junction boxes (6) are connected between the first battery unit (1) and the second battery unit (2);
the first battery unit (1) comprises a plurality of first battery strings (11), and the second battery unit (2) comprises a plurality of second battery strings (21);
a first shunt diode (4) and a second shunt diode (5) are arranged in the junction box (6);
the first battery strings (11) are respectively connected with the first shunt diodes (4) in the junction boxes (6) in series;
the second battery strings (21) are respectively connected with the second shunt diodes (5) in the junction boxes (6) in series;
the first shunt diode (4) and the second shunt diode (5) are arranged in the junction box (6) in a centrosymmetric mode.
2. The photovoltaic module with convenient arrangement as claimed in claim 1, characterized in that the first shunt diodes (4) in a plurality of the junction boxes (6) are connected in series through first wires (41);
the second shunt diodes (5) in the plurality of junction boxes (6) are connected in series through second connecting wires (51).
3. An easy-to-arrange photovoltaic module according to claim 1, characterized in that the first cell string (11) and the second cell string (21) each comprise a plurality of unit cells (3) connected in series.
4. An easy-to-arrange photovoltaic module according to claim 2, characterized in that the positive terminal of the first wiring (41) is located on the same side as the negative terminal of the second wiring (51);
the negative terminal of the first connection line (41) and the positive terminal of the second connection line (51) are located on the same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210306303.0A CN114650006A (en) | 2022-03-25 | 2022-03-25 | Photovoltaic module convenient to arrange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210306303.0A CN114650006A (en) | 2022-03-25 | 2022-03-25 | Photovoltaic module convenient to arrange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114650006A true CN114650006A (en) | 2022-06-21 |
Family
ID=81995967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210306303.0A Pending CN114650006A (en) | 2022-03-25 | 2022-03-25 | Photovoltaic module convenient to arrange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114650006A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115101630A (en) * | 2022-08-04 | 2022-09-23 | 保定嘉盛光电科技股份有限公司 | Photovoltaic assembly for curtain wall |
-
2022
- 2022-03-25 CN CN202210306303.0A patent/CN114650006A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115101630A (en) * | 2022-08-04 | 2022-09-23 | 保定嘉盛光电科技股份有限公司 | Photovoltaic assembly for curtain wall |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8723370B2 (en) | Photovoltaic string sub-combiner | |
| JP3572265B2 (en) | Photovoltaic module, photovoltaic power generation system and construction method thereof | |
| CN216981865U (en) | Photovoltaic module convenient to arrange | |
| JP5740172B2 (en) | Solar cell string, solar power generation system, and solar cell module electrical connection method | |
| EP4210117A1 (en) | Intelligent solar photovoltaic assembly | |
| CN104852682A (en) | Photovoltaic assembly | |
| CN114650006A (en) | Photovoltaic module convenient to arrange | |
| CN115347865A (en) | Special junction box for parallel connection and series connection of photovoltaic cell assemblies | |
| CN115842503A (en) | BIPV photovoltaic tile | |
| CN211929508U (en) | Photovoltaic module | |
| CN112186057B (en) | Parallel-series structure photovoltaic module | |
| CN110460304B (en) | Photovoltaic module, system and photovoltaic curtain wall | |
| CN111710741A (en) | Photovoltaic power generation device | |
| CN209896083U (en) | Photovoltaic module circuit unit, photovoltaic module circuit and photovoltaic module | |
| CN110335917B (en) | Welding method of battery string | |
| CN217361609U (en) | Photovoltaic module cell arrangement structure | |
| CN209859961U (en) | Solar cell module | |
| CN216056928U (en) | Photovoltaic module | |
| CN111755550A (en) | Circuit arrangement mode of solar photovoltaic module | |
| CN212342647U (en) | Photovoltaic power generation device | |
| CN116346027B (en) | Junction box applied to ultra-high power photovoltaic module | |
| CN217641363U (en) | Photovoltaic module convenient to arrange | |
| JP2004241789A (en) | Photovoltaic power generating system, solar cell module and method for constructing photovoltaic power generating system | |
| CN216819797U (en) | Five-string side-wiring large cell half-piece assembly | |
| CN218603444U (en) | Special junction box for parallel connection and series connection of photovoltaic cell modules |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |