CN108598206A - A kind of photovoltaic module - Google Patents

A kind of photovoltaic module Download PDF

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Publication number
CN108598206A
CN108598206A CN201810633203.2A CN201810633203A CN108598206A CN 108598206 A CN108598206 A CN 108598206A CN 201810633203 A CN201810633203 A CN 201810633203A CN 108598206 A CN108598206 A CN 108598206A
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CN
China
Prior art keywords
string
busbar
photovoltaic cell
diode
backboard
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
Application number
CN201810633203.2A
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Chinese (zh)
Inventor
董波
李冲
金叶
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Zhejiang Perlight Solar Co Ltd
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Zhejiang Perlight Solar Co Ltd
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Publication date
Application filed by Zhejiang Perlight Solar Co Ltd filed Critical Zhejiang Perlight Solar Co Ltd
Priority to CN201810633203.2A priority Critical patent/CN108598206A/en
Publication of CN108598206A publication Critical patent/CN108598206A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/04Semiconductor 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
    • H01L31/042PV modules or arrays of single PV cells
    • H01L31/05Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504Electrical 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30Electrical components
    • H02S40/34Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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  • 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 present invention provides a kind of photovoltaic modulies, including:Backboard, solar battery sheet, welding, cathode draw busbar, anode draws busbar, busbar;The front and back electrode of every 10 solar battery sheets passes sequentially through the welding and connects into photovoltaic cell string, and 1 to 2n+1 string photovoltaic cell string is arranged from left to right and is listed on the backboard, and n is arbitrary positive integer;1st string photovoltaic cell string string head welding cathode draw busbar, and remaining 2n string photovoltaic cell strings string is first, is connected between any two by the busbar from left to right;2n+1 string photovoltaic cell string string tail welding anodes draw busbar, are left 2n string photovoltaic cell string string tails, are connected between any two by the busbar from right to left.The present invention forms one piece of photovoltaic module using the photovoltaic cell string of odd number string, and the busbar at the both ends of entire photovoltaic module is in symmetry status, balances photovoltaic module both ends processing workload, improves processing operating efficiency.

Description

A kind of photovoltaic module
Technical field
The present invention relates to photovoltaic module preparation fields, and in particular to a kind of photovoltaic module.
Background technology
With the rapid development of social economy and the continuous improvement of living standards of the people, to the demand of the energy also increasingly Increasing, solar energy receives extensive favor as a kind of sustainable new energy, because it has the advantages that energy conservation and environmental protection, currently, Solar cell is gradually applied in daily life field.
The practical of photovoltaic module is realized using solar photovoltaic assembly is assembled into monomer solar cell, such as schemes Shown in 1, the process that existing solar cell is assembled into photovoltaic module is:First by 1 front and back electrode of several solar battery sheets according to It is secondary that battery strings are welded by welding 2, as the front electrode of " front " battery is connected to " back " cell piece by welding 2 In backplate, a plurality of battery strings welded equidistantly are arranged, then, the head and the tail of battery strings are connected with 3 welding of convergent belt It is arranged in encapsulating structure at battery component semi-finished product, just constitutes a piece of photovoltaic module.
Wherein, welding and convergent belt play connection solar cell and conductive effect.Existing welding and convergent belt Belong to the article of two kinds of different sizes, it is usually tin-coated welding strip or painting tin copper strips that welding, which generally uses copper product, convergent belt,.Mesh The photovoltaic module of preceding mainstream is 72 solar battery sheets and 60 solar battery sheet compositions.Wherein with 60 solar-electricities The photovoltaic module accounting of pond piece composition is most, and is 1640*992 in photovoltaic module size industry, or close to the size.With row Industry Development Technology is promoted.This edition type power is promoted to 280W-300W mainstream power from 250w several years ago at present, but photovoltaic electric System designer root of standing is liked being designed with 250W, to achieve the purpose that easy rounding.
But the photovoltaic module of existing 60 component at present in process its be laminated when, all cell pieces finally converge It flow to one end.So in process, the workload of component both ends employee processing is unmatched, one of employee's processing Workload wants low;As shown in Figure 1, the photovoltaic module of existing 60 component, there are four sections of convergent belts, lower end to converge with three ends for upper end Band, above and below workload be inconsistent.
Invention content
To solve the above problems, the present invention provides a kind of photovoltaic module, the present invention uses the photovoltaic cell string of odd number string One piece of photovoltaic module is formed, the busbar at the both ends of entire photovoltaic module is in symmetry status, balances the processing of photovoltaic module both ends Workload improves processing operating efficiency;Meanwhile the present invention does not change the photovoltaic module long side of traditional 60 components, only changes Its bond length, the photovoltaic module mounting means of 60 components of compatible tradition;And the present invention uses Split type connecting box, two poles in box Pipe is directly pierced by by lead-out wire by backboard trepanning, compared with traditional technology, is pooled to central area without lengthening and is being pierced by the back of the body Plate, can save the material utilization amount of busbar, while reduce line resistance and the power attenuation of entire component, while reduce because collecting Isolated insulation item needed for central area.
To realize the technical purpose, the technical scheme is that:A kind of photovoltaic module, including:Backboard, solar-electricity Pond piece, welding, cathode draw busbar, anode draws busbar, busbar;
The front and back electrode of every 10 solar battery sheets passes sequentially through the welding and connects into photovoltaic cell string, 1 to 2n+1 string photovoltaic cell string of setting from left to right is simultaneously listed on the backboard, and n is arbitrary positive integer;
1st string photovoltaic cell string string head welding cathode draw busbar, and remaining 2n string photovoltaic cell strings string is first, from left to right It is connected between any two by the busbar;
2n+1 string photovoltaic cell string string tail welding anodes draw busbar, are left 2n string photovoltaic cell string string tails, from the right side It is connected between any two by the busbar to a left side.
As a kind of preferred embodiment of the present invention, it is based on the above, unlike, the value of the n is 2, from 5 string photovoltaic cell string of left-to-right setting is simultaneously listed on the backboard;
1st string photovoltaic cell string string head welding cathode draw busbar, the 2nd string and the 3rd string, the 4th string and the 5th string photovoltaic electric Pond string string head is connected by the busbar;
5th string photovoltaic cell string string tail welding anode draws busbar, the 4th string and the 3rd string, the 2nd string and the 1st string photovoltaic electric Pond string string tail is connected by the busbar.
Further, 5 string photovoltaic cell strings are booked the backboard side by side, and the backboard size is 830*1640mm.
Further, the total generated output of photovoltaic module of 5 string photovoltaic cell string compositions is 250w.
Further, the first diode, the second diode, third diode, the 1st string and the 2nd string, the 3rd string and the 4th string are set Photovoltaic cell string string head is corresponding respectively to be connected by the connection of the first diode, the second diode, the 4th string and the 5th string photovoltaic cell String string tail is connected by third diode.
Further, first diode, the second diode, third welding diode are in adjacent two busbars or cathode It draws between busbar or anode extraction busbar.
Further, correspondence is placed in three discrete wiring respectively for first diode, the second diode, third diode In box;
The backboard is in the 1st string and the 2nd string, the 3rd string and the 4th string photovoltaic cell string string head, the 4th string and the 5th string photovoltaic electric Pond string string tail interval trepanning, discrete terminal box is set under the backboard, and two leads are arranged from discrete terminal box It draws and across hole is soldered to positive adjacent two busbars of backboard.
Preferably, negative junction box and positive terminal box are set;
First diode, the second diode are placed in negative junction box;Third diode is placed in positive terminal box;
The backboard is in the 1st string and the 2nd string, the 3rd string and the 4th string photovoltaic cell string string head, the 4th string and the 5th string photovoltaic electric Pond string string tail interval trepanning, negative junction box, positive terminal box are set under the backboard, and negative junction box is arranged four Lead, positive terminal box are arranged two leads and are soldered to positive adjacent two busbars of backboard or cathode extraction confluence across hole Item or anode are drawn between busbar.
The beneficial effects of the present invention are:
The present invention forms one piece of photovoltaic module, the confluence at the both ends of entire photovoltaic module using the photovoltaic cell string of odd number string Item is in symmetry status, balances photovoltaic module both ends processing workload, improves processing operating efficiency;Meanwhile the present invention does not change The photovoltaic module long side for becoming traditional 60 components only changes its bond length, the photovoltaic module installation side of 60 components of compatible tradition Formula;And the present invention uses Split type connecting box, diode is directly pierced by by lead-out wire by backboard trepanning in box, more traditional Technology is pooled to central area without lengthening and is being pierced by backboard, can save the material utilization amount of busbar, while reducing entire The line of component hinders and power attenuation, while reducing because collecting the isolated insulation item needed for central area.
Description of the drawings
Fig. 1 is the photovoltaic module structure schematic diagram of existing 60 component;
Fig. 2 is the structural schematic diagram of photovoltaic module of the present invention;
Fig. 3 is one of the electrical schematic diagram of photovoltaic module of the present invention;
Fig. 4 is the two of the electrical schematic diagram of photovoltaic module of the present invention.
Specific implementation mode
Technical scheme of the present invention will be clearly and completely described below.
As shown in Fig. 2, a kind of photovoltaic module, including:Backboard 4, solar battery sheet 1, welding, cathode draw busbar 5, Anode draws busbar 6, busbar 7;
The front and back electrode of every 10 solar battery sheets passes sequentially through the welding and connects into photovoltaic cell string, 1 to 2n+1 string photovoltaic cell string of setting from left to right is simultaneously listed on the backboard, and n is arbitrary positive integer;
1st string photovoltaic cell string string head welding cathode draws busbar 5, and it is first to be left 2n string photovoltaic cell string strings, from a left side to It is right to be connected between any two by the busbar 7;
2n+1 string photovoltaic cell string string tail welding anodes draw busbar 6, are left 2n string photovoltaic cell string string tails, from the right side It is connected between any two by the busbar 7 to left.The present invention forms one piece of photovoltaic module using the photovoltaic cell string of odd number string, The busbar at the both ends of entire photovoltaic module is in symmetry status, balances photovoltaic module both ends processing workload, improves processing Operating efficiency.
As a kind of preferred embodiment of the present invention, it is based on the above, unlike, as shown in Fig. 2, the n Value be 2, from left to right be arranged 5 string photovoltaic cell strings simultaneously be listed on the backboard;
1st string photovoltaic cell string string head welding cathode draw busbar, the 2nd string and the 3rd string, the 4th string and the 5th string photovoltaic electric Pond string string head is connected by the busbar;
5th string photovoltaic cell string string tail welding anode draws busbar, the 4th string and the 3rd string, the 2nd string and the 1st string photovoltaic electric Pond string string tail is connected by the busbar.
Further, 5 string photovoltaic cell strings are booked the backboard side by side, and the backboard size is 830*1640mm.Namely It says, photovoltaic module of the invention, does not change the photovoltaic module long side of traditional 60 components, only change its bond length;Due to light The general installation site of component is lied prostrate all in long side, therefore the photovoltaic module of the present invention will not change component installation difficulty, compatible tradition The photovoltaic module mounting means of 60 components.
Further, the total generated output of photovoltaic module of 5 string photovoltaic cell string compositions is 250w, is filled with 250W general components Neutral gear, and only need to ensure the consistency of 50 component solar battery sheets, so that it may to realize total generated output of 250w, entire group Part is easier to splice assembling.
Further, as shown in figure 3, the first diode 8 of setting, the second diode 9, the string of third diode the 10, the 1st and the 2nd String, the 3rd string are corresponding by the connection of the first diode, the connection of the second diode respectively with the 4th string photovoltaic cell string string head, and the 4th goes here and there It is connected by third diode with the 5th string photovoltaic cell string string tail.
Further, first diode, the second diode, third welding diode in adjacent two busbars 7 or are born It draws between busbar 5 or anode extraction busbar 6 pole.
Further, correspondence is placed in three discrete wiring respectively for first diode, the second diode, third diode In box;Wherein the 4th string is bypassed simultaneously by the third diode of the second diode of cathode and anode, if the 4th string blocks Situation, the 3rd string and the 5th string can form parallel connection, but limited 1st string and the 2nd electric current influence, and last phenomenon is still only 3 string battery strings work, this meets the mppt power optimizations of traditional hot spot effect, illustrates that the electrical design of the present invention is reasonable.
The backboard is in the 1st string and the 2nd string, the 3rd string and the 4th string photovoltaic cell string string head, the 4th string and the 5th string photovoltaic electric Pond string string tail interval trepanning, discrete terminal box is set under the backboard, and two leads are arranged from discrete terminal box Draw and across hole be soldered to positive adjacent two busbars of backboard (including) 7.The present invention uses Split type connecting box, Diode is directly pierced by by lead-out wire by backboard trepanning in box, and compared with traditional technology, central area is pooled to without lengthening It is being pierced by backboard, the material utilization amount of busbar can be saved, while reducing line resistance and the power attenuation of entire component, is being subtracted simultaneously Less because collecting the isolated insulation item needed for central area.
Preferably, negative junction box and positive terminal box are set;
First diode, the second diode are placed in negative junction box;Third diode is placed in positive terminal box;
The backboard is in the 1st string and the 2nd string, the 3rd string and the 4th string photovoltaic cell string string head, the 4th string and the 5th string photovoltaic electric Pond string string tail interval trepanning, negative junction box, positive terminal box are set under the backboard, and negative junction box is arranged four Lead, positive terminal box are arranged two leads and are soldered to positive adjacent two busbars 7 of backboard or cathode extraction remittance across hole It flows between item 5 or anode extraction busbar 6.That is, two discretes may be used in the photovoltaic module negative pole end of the present invention Terminal box is discrete by the first diode, the second diode, a negative junction box can also be used to house the first diode, second Diode.
It should be noted that the electrical connection of the present invention can also use connection type as shown in Figure 4, wherein anode to adopt With double diode, for cathode using single diode, operation principle is constant, remains to the mppt power for normally realizing traditional hot spot effect Optimization function.
For those of ordinary skill in the art, without departing from the concept of the premise of the invention, it can also do Go out several modifications and improvements, these are all within the scope of protection of the present invention.

Claims (8)

1. a kind of photovoltaic module, which is characterized in that including:Backboard, solar battery sheet, welding, cathode draw busbar, anode Draw busbar, busbar;
The front and back electrode of every 10 solar battery sheets passes sequentially through the welding and connects into photovoltaic cell string, from a left side It to 1 to 2n+1 string photovoltaic cell string of right setting and is listed on the backboard, and n is arbitrary positive integer;
1st string photovoltaic cell string string head welding cathode draw busbar, and remaining 2n string photovoltaic cell strings string is first, from left to right two-by-two Between connected by the busbar;
2n+1 string photovoltaic cell string string tail welding anodes draw busbar, are left 2n string photovoltaic cell string string tails, from right to left It is connected between any two by the busbar.
2. photovoltaic module according to claim 1, which is characterized in that the value of the n is 2, and 5 optical crosstalks volt is arranged from left to right Battery strings are simultaneously listed on the backboard;
1st string photovoltaic cell string string head welding cathode draw busbar, the 2nd string and the 3rd string, the 4th string and the 5th string photovoltaic cell string String head is connected by the busbar;
5th string photovoltaic cell string string tail welding anode draws busbar, the 4th string and the 3rd string, the 2nd string and the 1st string photovoltaic cell string String tail is connected by the busbar.
3. photovoltaic module according to claim 2, which is characterized in that 5 string photovoltaic cell strings are booked the backboard, institute side by side It is 830*1640mm to state backboard size.
4. photovoltaic module according to claim 2, which is characterized in that the photovoltaic module of 5 string photovoltaic cell string compositions is always sent out Electrical power is 250w.
5. photovoltaic module according to claim 2, which is characterized in that the first diode of setting, the second diode, the three or two Pole pipe, the 1st string and the 2nd string, the 3rd string with the 4th go here and there photovoltaic cell string string head it is corresponding respectively connect by the first diode, the two or two Pole pipe connects, and the 4th string is connected with the 5th string photovoltaic cell string string tail by third diode.
6. photovoltaic module according to claim 5, which is characterized in that first diode, the second diode, the three or two Pole pipe is welded between adjacent two busbars.
7. photovoltaic module according to claim 6, which is characterized in that
Correspondence is placed in three discrete terminal boxes respectively for first diode, the second diode, third diode;
The backboard is in the 1st string and the 2nd string, the 3rd string and the 4th string photovoltaic cell string string head, the 4th string and the 5th string photovoltaic cell string String tail interval trepanning, discrete terminal box are set under the backboard, and two leads are arranged and are drawn from discrete terminal box And it is soldered to positive adjacent two busbars of backboard or cathode extraction busbar or anode extraction busbar across hole.
8. photovoltaic module according to claim 6, which is characterized in that setting negative junction box and positive terminal box;
First diode, the second diode are placed in negative junction box;Third diode is placed in positive terminal box;
The backboard is in the 1st string and the 2nd string, the 3rd string and the 4th string photovoltaic cell string string head, the 4th string and the 5th string photovoltaic cell string String tail interval trepanning, negative junction box, positive terminal box are set under the backboard, and negative junction box is arranged four and draws Line, positive terminal box are arranged two leads and are soldered to positive adjacent two busbars of backboard or cathode extraction busbar across hole Or between anode extraction busbar.
CN201810633203.2A 2018-06-19 2018-06-19 A kind of photovoltaic module Pending CN108598206A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109950334A (en) * 2019-04-02 2019-06-28 晶澳(扬州)太阳能科技有限公司 MWT solar battery group string and preparation method thereof, component
CN111092133A (en) * 2018-10-23 2020-05-01 财团法人工业技术研究院 Solar photoelectric module
CN112531058A (en) * 2019-09-18 2021-03-19 苏州阿特斯阳光电力科技有限公司 Photovoltaic module

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JP2010034500A (en) * 2008-06-27 2010-02-12 Kyocera Corp Solar battery module
JP2014033240A (en) * 2013-11-21 2014-02-20 Mitsubishi Electric Corp Solar cell module
CN105118879A (en) * 2015-07-20 2015-12-02 安徽灿邦电气有限公司 Louver blade type photovoltaic sun-shading assembly
CN105305955A (en) * 2015-11-09 2016-02-03 张家港其辰光伏科技有限公司 Solar cell module and solar power generation system
CN105576055A (en) * 2016-02-24 2016-05-11 常州亚玛顿股份有限公司 Double-glass light transmission assembly
CN208256701U (en) * 2018-06-19 2018-12-18 浙江宝利特新能源股份有限公司 A kind of photovoltaic module

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010034500A (en) * 2008-06-27 2010-02-12 Kyocera Corp Solar battery module
JP2014033240A (en) * 2013-11-21 2014-02-20 Mitsubishi Electric Corp Solar cell module
CN105118879A (en) * 2015-07-20 2015-12-02 安徽灿邦电气有限公司 Louver blade type photovoltaic sun-shading assembly
CN105305955A (en) * 2015-11-09 2016-02-03 张家港其辰光伏科技有限公司 Solar cell module and solar power generation system
CN105576055A (en) * 2016-02-24 2016-05-11 常州亚玛顿股份有限公司 Double-glass light transmission assembly
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111092133A (en) * 2018-10-23 2020-05-01 财团法人工业技术研究院 Solar photoelectric module
CN109950334A (en) * 2019-04-02 2019-06-28 晶澳(扬州)太阳能科技有限公司 MWT solar battery group string and preparation method thereof, component
CN109950334B (en) * 2019-04-02 2024-03-26 晶澳(扬州)太阳能科技有限公司 MWT solar battery string, preparation method thereof and assembly
CN112531058A (en) * 2019-09-18 2021-03-19 苏州阿特斯阳光电力科技有限公司 Photovoltaic module
CN112531058B (en) * 2019-09-18 2022-09-02 苏州阿特斯阳光电力科技有限公司 Photovoltaic module

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