CN102664205A - Anti-shielding solar battery assembly based on multi-diode module - Google Patents
Anti-shielding solar battery assembly based on multi-diode module Download PDFInfo
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- CN102664205A CN102664205A CN2012101590399A CN201210159039A CN102664205A CN 102664205 A CN102664205 A CN 102664205A CN 2012101590399 A CN2012101590399 A CN 2012101590399A CN 201210159039 A CN201210159039 A CN 201210159039A CN 102664205 A CN102664205 A CN 102664205A
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Abstract
The invention discloses an anti-shielding solar battery assembly based on a multi-diode module. The solar battery assembly comprises a plurality of circuits (30), wherein each circuit (30) comprises at least two battery strings (20); any two adjacent battery strings (20) are connected in series; each circuit (30) is connected in parallel with at least one diode D; and the battery strings (20) are parallelly arranged in the solar battery assembly along a preset direction. The vertically arranged solar battery assembly can normally perform photoelectric conversion operation even if partially shielded by shielding objects such as dust and accumulated snow, so that generating capacity in unit time is increased, the overall using performance and working efficiency of the solar battery assembly are improved, and a great production and practice significance is provided for expanding the market application prospect of solar battery products.
Description
Technical field
The present invention relates to photovoltaic product manufacturing technology field, particularly relate to a kind of anti-solar module that blocks based on the multiple diode module.
Background technology
At present, traditional fossil energy supply day is becoming tight, and is being faced with the stern reality challenge.Therefore, this clean reproducible energy of solar energy has obtained people's great attention.If change solar energy into electric energy, offer people and use, must realize opto-electronic conversion through the device such as the solar cell that produce photovoltaic effect to solar energy.Because solar module uses of both can being incorporated into the power networks, also can independent utility, and the use that can combine with photovoltaic system or construction wall, so have wide development space.
Current; Known crystal silicon solar battery component is to carry out circuit through zinc-plated copper strips according to specific forms by the crystal silicon battery sheet to connect; (for example comprise toughened glass with encapsulating material then; Adhesive, backboard etc.) form laminated compenent, pass through the photovoltaic product that terminal box is connected with outside power consumption equipment at last.
In order to reduce the shared space of silicon solar battery assembly, practice thrift land use area, generally adopt vertical mode of installing that solar cell (being the long limit vertical level of rectangle solar module) is installed at present.But; Seeing that no matter be the photovoltaic system that is positioned at remote open area; Still be applied to the intensive BIPV of city middle-high building (BIPV) building; All maybe be because extraneous former thereby the situation that photovoltaic module is partly blocked occur, for example blocked by the dust of the fallen leaves of flying bird ight soil, tree, winter accumulated snow and accumulation etc.For receiving the solar battery sheet that blocks influence, it is placed in reverse-bias state easily, easily heating and consumed power.
Because conventional solar module is when encapsulation; Each battery strings that wherein contains all is that the long limit along rectangle upper cover plate (being generally glass) is arranged in parallel; Be connected in series each battery strings through the band that confluxes at last, and extract electrode through terminal box.In order to reduce the be blocked power loss that causes and to the injury of assembly of light, the existing conventional solar module is 3 diodes of configuration (6 string battery strings are formed three loops) usually.Usually on each loop, set up diode and carry out bypass protection; Each diode evenly distributes and (for example is respectively applied for several battery sheets of protection; For the solar module that comprises 60 and 72 battery sheets, 20 of corresponding respectively protections of each diode and 24 battery sheet).
But; For existing solar module; When vertical installation (being the long limit vertical level of rectangle solar module); Itself in case by dust, accumulated snow etc. laterally shelter shelter from be arranged in parallel because each battery strings all is long limit along rectangle solar module upper cover plate, therefore at horizontal shelter such as dust, accumulated snow to the part (like the bottom) of solar module when horizontal partial occlusion is arranged; If some is lived the bottom of any battery strings by shelter partial occlusions such as dust, accumulated snow; Then the be blocked battery sheet of part of this battery strings will not receive solar energy and can't work, because a battery strings is cascaded by a plurality of battery sheets again and forms, therefore; Be in reverse-bias state as long as battery strings has the locational battery sheet of part because block, just will cause the entire cell string can't operate as normal.Therefore; When the situation that shelters such as dust, accumulated snow all block the part (like the bottom) of whole solar cell assembly occurring; All battery strings are blocked some battery sheet; This will cause all battery strings can't operate as normal, thereby make whole solar cell assembly cisco unity malfunction.
Therefore, this design of existing solar module makes when vertically solar module being installed; Its power loss is comparatively serious; Even the whole solar cell assembly all is in off position, influences the generating efficiency of photovoltaic system, thereby can't bring into play the function of photovoltaic system fully.This situation continues generation can make assembly produce " hot spot effect ", influences its useful life.
In view of when the daily use solar module; Owing to need expose solar module; Therefore covered and to avoid fully by shelters such as the dust of outside, accumulated snow, therefore, press for a kind of technology of developing at present; It can be when vertically installing solar module, even solar module is blocked by shelter parts such as dust, accumulated snow.Still can normally carry out opto-electronic conversion work, improve the whole serviceability and the operating efficiency of solar module greatly.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of anti-solar module that blocks based on the multiple diode module, it is when vertical the installation; Even blocked by shelter parts such as dust, accumulated snow; Still can normally carry out opto-electronic conversion work, improve the energy output in the unit interval, help improving the whole serviceability and the operating efficiency of solar module; Market application foreground for enlarging solar battery product is of great practical significance.
For this reason; The invention provides a kind of anti-solar module that blocks based on the multiple diode module; Said solar module includes a plurality of loops, and each said loop includes at least two battery strings, and two adjacent battery strings are cascaded each other arbitrarily;
Each loop all is parallel with at least one diode D;
Said battery strings is arranged in parallel within the said solar module along preset direction.
Wherein, said battery strings is arranged in parallel within the solar module along the minor face of said solar module.
Wherein, each loop all is parallel with a said diode D or is in parallel with a plurality of said diode D that are connected in parallel.
Wherein, each battery strings includes a plurality of solar battery sheets that are cascaded.
Wherein, link together through interconnecting strip between any two adjacent solar battery sheets in each battery strings;
Be cascaded through the band that confluxes between two adjacent arbitrarily battery strings.
Wherein, the loop that is positioned at said solar module bottom includes two battery strings, and the loop that is positioned at said solar module middle part and top includes at least two battery strings.
Visible by above technical scheme provided by the invention; Compared with prior art, a kind of anti-solar module that blocks provided by the invention based on the multiple diode module, it is when vertical the installation; Even blocked by shelter parts such as dust, accumulated snow; Still can normally carry out opto-electronic conversion work, improve the energy output in the unit interval, help improving the whole serviceability and the operating efficiency of solar module; Market application foreground for enlarging solar battery product is of great practical significance.
Description of drawings
Fig. 1 is a kind of anti-circuit theory diagrams that block solar module based on the multiple diode module provided by the invention;
Fig. 2 is a kind of anti-structural representation that blocks solar module embodiment one based on the multiple diode module provided by the invention;
Fig. 3 is a kind of anti-structural representation that blocks solar module embodiment two based on the multiple diode module provided by the invention;
Fig. 4 is a kind of anti-structural representation that blocks solar module embodiment three based on the multiple diode module provided by the invention;
Fig. 5 is a kind of anti-structural representation that blocks solar module embodiment four based on the multiple diode module provided by the invention;
Fig. 6 is a kind of anti-structural representation that blocks solar module embodiment five based on the multiple diode module provided by the invention;
Fig. 7 is a kind of anti-structural representation that blocks solar module embodiment six based on the multiple diode module provided by the invention;
Fig. 8 is based on a kind of anti-structural representation that blocks the laminate of solar module based on the multiple diode module provided by the invention;
Fig. 9 is a kind of sketch map when blocking terminal box that solar module has and diode (led) module integrated setting based on multiple diode module anti-provided by the invention;
Figure 10 a kind ofly blocks terminal box that solar module has and the diode (led) module split sketch map when being provided with based on multiple diode module anti-for provided by the invention;
Among the figure: 1 is upper cover plate, and 2 is adhesive, and 3 is backboard, and 4 is terminal box, and 5 is the bypass diode module, and 10 is solar battery sheet, and 20 is battery strings, and 30 is the loop, and 40 is contact conductor, and 50 is interconnecting strip, and 60 are the band that confluxes.
Embodiment
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing and execution mode.
Referring to Fig. 1 to Fig. 4; The invention provides a kind of anti-solar module that blocks based on the multiple diode module, said solar module is that the assembly of rectangle is (certainly, according to user's needs; Can also be the assembly of other shapes); It includes a plurality of loops 30, and each said loop 30 includes at least two battery strings 20, and two adjacent battery strings 20 are cascaded each other arbitrarily; Said battery strings 20 is arranged in parallel within the solar module along the minor face of said solar module, and each battery strings 20 includes a plurality of solar battery sheets that are cascaded 10.
Need to prove; For the present invention; The minor face (being the broadside of rectangle solar module) that said battery strings 20 is not limited to along said solar module is arranged in parallel within the solar module; According to user's needs, can also be direction arbitrarily, for example be parallel to cornerwise direction of said rectangle solar module.
In the present invention, each loop 30 all is parallel with a diode D, perhaps is in parallel with a plurality of diode D that are connected in parallel.For example; Referring to Fig. 1, form a loop 30 by per two battery strings 20, each loop 30 is parallel with a diode D respectively; By said diode D bypass protection is carried out in each loop 30, the power loss of solar module when being blocked light to reduce solar battery sheet 10.
In the present invention,, connect (being specially welding) together through interconnecting strip 50 between any two adjacent solar battery sheets 10 in each battery strings 20, realize series connection each other referring to Fig. 2; Conflux through one between two arbitrarily adjacent battery strings 20 and be with 60 to be cascaded, realize series connection each other.
In the present invention, need to prove, be not limited to form a loop 30 by two battery strings 20, referring to Fig. 5 to Fig. 7, can also be that the battery strings by four battery strings and other arbitrary numbers forms a loop 30.And, also need to prove, for solar module provided by the invention; The battery strings that each loop 30 wherein has both can be all identical; Also can be inequality, for example can include two battery strings for the loop 30 that has, the loop 30 that has includes four battery strings.
For the present invention; In view of being blocked by horizontal shelter such as dust, accumulated snow easily the bottom of common solar module; Therefore; On concrete the realization, the loop 30 that is positioned at said solar module bottom includes two battery strings 20, and the loop 30 that is positioned at said solar module middle part and top includes at least two battery strings 20.In addition, can also include two battery strings 20, be positioned on the loop of said other parts of solar module 30 and include at least two battery strings 20 for the loop 30 that is positioned at the some parts of said solar module (top, middle part or bottom).
On concrete the realization, for example referring to Fig. 5, for solar module provided by the invention, the said loop 30 of wherein each all includes four battery strings 20;
On concrete the realization, for example referring to Fig. 6, the loop 30 of said solar module bottom includes two battery strings 20, and remaining loop 30 includes four battery strings 20.
On concrete the realization, for example referring to Fig. 7, the loop at said solar module top has included four battery strings 20, and the loop of said solar module middle part and bottom has included two battery strings 20.
Need to prove; For the solar module based on the multiple diode module provided by the invention, it is installed when placing vertical, if dust, accumulated snow etc. are when laterally shelter carries out horizontal partial occlusion to the part (like the bottom) of solar module; Owing to block direction for horizontal; Identical with the orientation of battery strings 20, so these horizontal shelters only can block on limited several battery strings, the problem of a plurality of battery strings can not occur as prior art, sheltering from simultaneously; Therefore can there be the solar battery sheet problem that is blocked in most battery strings; Therefore most of battery strings can operate as normal, and the major part of solar module still can normally be carried out opto-electronic conversion work, has guaranteed the operating efficiency and the whole serviceability of solar module.
For solar module provided by the invention; When it is placed in vertical installation; Even when situation that shelters such as dust, accumulated snow carry out laterally all blocking to the part (like the bottom) of whole solar cell assembly occurring, these horizontal shelters only can block on limited several battery strings equally, compared with prior art; A part of battery sheet in all battery strings can not occur as prior art, sheltering from simultaneously and make the problem that the whole solar cell assembly can't operate as normal; The present invention still can operate as normal, makes most battery strings normally carry out opto-electronic conversion, has good work efficiency and serviceability.
For solar module provided by the invention; It all is parallel with a diode and carries out bypass protection on each loop; Can be applicable to well to cause solar module (for example to be abominable natural environment) in the various environment of partial occlusion easily, guarantee that battery can normally use in round-the-clock, full location by battery component.
Referring to Fig. 8; For the solar module based on the multiple diode module provided by the invention; Said a plurality of battery strings 20 is arranged between the two-layer adhesive 2, is provided with upper cover plate 1 directly over the said two-layer adhesive 2, is provided with backboard 3 under the said two-layer adhesive 2.
In the present invention, said solar battery sheet can comprise the crystal silicon battery sheet of general all types of, each size in markets such as monocrystalline, polycrystalline and accurate monocrystalline.
In the present invention, said upper cover plate 1 can be for adopting toughened glass, polyacrylic acid resinoid, PEP, transparent polyester or gathering the cover plate that carbon ester material is processed.
In the present invention, said adhesive 2 can be room curing silicon rubber, PEP, polyvinyl butyral resin (PVB), transparent dioxygen resin or polyvinyl acetate (EVA).
In the present invention, said backboard 3 can be the backboard that adopts polyvinyl fluoride composite membrane (TPT) or thermoplastic elastomer (TPE) (TPE, BBF, PET or PVDF) material to process.
In the present invention, said conflux with 60 with the material of interconnecting strip 50 for adopting any one or a plurality of conducting metals, zinc-plated copper strips etc. for example.And, said conflux with 60 and interconnecting strip 50 both with solar battery sheet between be connected and can adopt machine or various connected modes such as manual welding, conductive adhesive.
In the present invention, said bypass diode can be that single diode also can be a plurality of diodes that are connected in parallel.
Referring to Fig. 9, Figure 10; Solar module provided by the invention also includes at least one terminal box 4; All loops 30 parallelly connected a plurality of diode D form a bypass diode module 5 together, said terminal box 4 is pasted with bypass diode module 5 and is arranged on the lateral surface of backboard 3.
On concrete the realization, said bypass diode module 5 can be installed on said terminal box 4 inside, and is integrated with terminal box; In addition, said bypass diode module 5 can also be installed on said terminal box 4 outsides, opens independent installation in 4 minutes with terminal box.
Below in conjunction with six specific embodiments technical scheme of the present invention and technique effect are described.
Embodiment 1
Referring to Fig. 2, the solar module based on the multiple diode module provided by the invention, the battery sheet on it is arranged according to 6 * 10, selects for use long and wide 6 cun (156mm) 3 grid single crystal battery sheets pedestrian's work point of going forward side by side that is to select.According to preset sheet spacing 6 battery sheets (10) are in series through the interconnecting strip manual welding.On the EVA adhesive, carry out lamination operation, along the parallel placement 10 string battery strings 20 of the short side direction of rectangle solar module.According to preset string spacing, per 2 crosstalk ponds were ganged up the conflux mode of band of spot welding and were connected, thereby formed 5 loops 30, and the contact conductor 40 that inserts a bypass diode is all reserved in each loop.Order is laid dielectric film, EVA adhesive, TPT backboard and is processed laminate subsequently.2 of the terminal boxes that the circuit module have 3 bypass diodes is installed, has 1 diode and 2 binding posts on the assembly backboard are with reservation conflux band and binding post firm welding.
Black box carries out bypass protection by 5 diodes.When horizontal shelter or shade cover 1～2 crosstalk pond sheet; The battery sheet of 60%～80% (36 or 48) can operate as normal among this embodiment 1; When horizontal shelter or shade covered 3～4 crosstalk pond sheets, the battery sheet of 40%～60% (24 or 36) still can operate as normal among this embodiment.When horizontal shelter or shade cover 5～6 crosstalk pond sheets, still have at least the battery sheet of 20% (12) can operate as normal among this embodiment.Have only when horizontal shelter or shade covering >=9 strings, the solar module of the embodiment of the invention 1 just might quit work.
And existing traditional solar module, in a single day its some part receives laterally all covers, the equal cisco unity malfunction of all batteries sheet.
Therefore, through above-mentioned data, but knowledge capital is invented the quantity that can effectively reduce affected battery sheet when solar module is masked, and has reduced the risk of component failures.
Embodiment 2
Referring to Fig. 3, the solar module based on the multiple diode module provided by the invention, the battery sheet on it is arranged according to 6 * 12, and solar module selects for use long and wide 5 cun (125mm) 2 grid single crystal battery sheets pedestrian's work point of going forward side by side that is to select.Per 6 battery sheets (10) are connected into battery strings 20 through the interconnecting strip manual welding.On the EVA adhesive, carry out lamination operation, place 12 string battery strings 20 with reference to preset design direction along the glass minor face.Per 2 crosstalk ponds were ganged up the conflux mode of band of spot welding and are connected and form 6 loops 30, and the contact conductor 40 that inserts a bypass diode is all reserved in each loop.Order is laid dielectric film, EVA adhesive, TPT backboard and is processed laminate subsequently.Installation has the circuit module of 4 bypass diodes, 2 terminal boxes that have 1 diode and 2 binding posts on the assembly backboard, reservation is confluxed be with and the binding post firm welding.
Referring to Fig. 4, the solar module based on the multiple diode module provided by the invention, the battery sheet on it is arranged according to 7 * 12, selects for use long and widely to be 5 cun (125mm) 2 grid single crystal battery sheets and to carry out sorting.Per 7 battery sheets 10 are connected into battery strings 20 through the interconnecting strip manual welding.On the EVA adhesive, carry out lamination operation, place 12 string battery strings 20 along the glass short side direction.According to preset string spacing, per 2 crosstalk ponds were ganged up the conflux mode of band of spot welding and are connected and form 6 loops 30, and the contact conductor 40 that inserts a bypass diode is all reserved in each loop.Order is laid dielectric film, EVA adhesive, TPT backboard and is processed laminate subsequently.Installation has the circuit module of 4 bypass diodes, 2 terminal boxes that have 1 diode and 2 binding posts on the assembly backboard, will reserve contact conductor and binding post firm welding.
At the solar module based on the multiple diode module provided by the invention shown in Figure 5, the battery sheet on it is arranged according to 7 * 12, and solar module is selected long and wide 5 cun (125mm) batteries of monocrystalline sheet that is for use, carries out sorting before the use.Carry out welding operation then, battery strings by 7 battery sheets 10 through the interconnecting strip manual welding and be in series.On the EVA adhesive, carry out lamination operation, the string spacing is arranged and suitably adjusted to 12 battery strings 20 along the glass minor face.Per 4 crosstalk ponds were ganged up the band series connection of confluxing and were formed 3 loops 30, and the contact conductor 40 that inserts a bypass diode is all reserved in each loop.Order is laid dielectric film, EVA adhesive, TPT backboard and is put into laminating machine and carry out lamination subsequently, processes laminate.The terminal box that has 3 bypass diodes and 4 binding posts is installed, terminal box terminal and reservation contact conductor firm welding on the assembly backboard.
Black box carries out bypass protection by 3 diodes, and the protection of diode pair battery sheet realizes evenly arranging.When horizontal shelter block≤during 4 crosstalk pond sheets; There is the battery sheet of 33%～67% (28 or 56) can operate as normal among this embodiment; This embodiment prevents that equally assembly from laterally blocking, and present embodiment is applicable to that coming from the upper, middle and lower receives laterally to block the similar installation environment of frequency.
Embodiment 5
Referring to Fig. 6, among the asymmetric embodiment that arranges of shown diode, the solar module based on the multiple diode module provided by the invention, the battery sheet on it is arranged according to 6 * 10.Solar module is selected long and wide 6 cun (156mm) the 2 grid polycrystalline battery sheets that are for use, carries out the sorting of battery sheet before the use.According to preset sheet spacing 6 battery sheets 10 are carried out craft series connection welding through interconnecting strip.During lamination, 10 battery strings 20 are arranged battery strings and adjustment string spacing along the glass short side direction.Two crosstalk ponds, bottom were ganged up the conflux mode of band of spot welding and are connected and form 1 loop 30, and the per 4 string battery strings 20 in top and middle part are composed in series 2 loops 30 through the spot welding mode of being with of confluxing.The contact conductor 40 that inserts a bypass diode is all reserved in each loop.Order is laid dielectric film, EVA adhesive, TPT backboard and is processed laminate subsequently.The terminal box have 3 diodes and 4 binding posts is installed on the assembly backboard, and terminal box terminal and the reservation tape welding that confluxes connects firmly.
Black box carries out bypass protection by 3 diodes, and the protection of diode pair battery sheet realizes inhomogeneous arranging.The number that this embodiment controls the battery sheet with diode is redistributed and is reached the situation that prevents assembly bottom serious shielding.When accumulated snow etc. covers bottom 1～2 crosstalk pond sheet, 20% (12) battery sheet non-normal working is only arranged.Present embodiment is applicable to that frequent accumulated snow or ground object wait frequency that solar module that environment installs and other positions the are blocked assembly much smaller than the 159mm altitude range (with assembly setting angle α=30 ° of calculating, altitude range is 318mm * sin α) apart from ground in a jumble.
Embodiment 6
Referring to Fig. 7, among the asymmetric embodiment that arranges of shown diode, the solar module based on the multiple diode module provided by the invention, the battery sheet on it is arranged according to 6 * 10.Solar module is selected long and wide 6 cun (156mm) the 2 grid polycrystalline battery sheets that are for use, carries out the sorting of battery sheet before the use.According to preset sheet spacing 6 battery sheets 10 are carried out craft series connection welding through interconnecting strip.During lamination, 10 battery strings 20 are arranged battery strings and adjustment string spacing along the glass short side direction.6 battery strings 20 per 2 in bottom were ganged up the conflux mode of band of spot welding and are connected and form 1 loop 30, formed 3 loops 30 altogether, and 4 crosstalk ponds, top were ganged up the conflux mode of band of spot welding and are composed in series 1 loop.The contact conductor 40 that inserts a bypass diode is all reserved in each loop.Order is laid dielectric film, EVA adhesive, TPT backboard and is processed laminate subsequently.The terminal box have 2 diodes and 2 binding posts is installed on the assembly backboard, terminal box terminal and the reservation tape welding that confluxes is connect firmly.Present embodiment is applicable to the higher assembly of frequency that is blocked at certain several position.
In the present invention, for a kind of anti-solar module that blocks based on the multiple diode module provided by the invention, its preparation method is following:
1, monolithic battery sheet sorting: a plurality of battery sheets are classified according to shade; Pick out bad battery sheet wherein and make it to get into follow-up production and prepare process;
2, the single weldering and the series welding of battery sheet: well-graded battery sheet is welded, and the positive pole that makes each sheet battery links to each other with the negative pole of adjacent battery sheet, forms so-called " battery strings ".This connection is accomplished through above-mentioned interconnecting strip, and the main grid line of interconnecting strip and battery sheet front and back is welded to each other together, forms good Ohmic contact.This welding operation can be accomplished through machine automatically, also can use the mode of manual welding to accomplish.Ohm between interconnecting strip and the battery sheet main grid line is connected also can be through the conducting resinl completion;
3, range upon range of: as to lay toughened glass, adhesive, battery strings, dielectric film, adhesive and backboard successively.Couple together arranging good battery strings with busbar, and through between each battery sheet (string) whether good electrical connection being arranged on the voltage tester check assembly under the illumination.Then, with the assembly that the lays range estimation (system of laying of battery strings sees that embodiment one, embodiment two, embodiment are third-class) of overturning;
4, defective EL test: after the hand inspection stacked wafer module outward appearance, utilize the indiscoverable sliver of electronic equipment observation human eye, latently split, defective such as blackspot and in time replacing problem battery sheet or battery strings;
5, lamination: assembly makes the encapsulating material crosslinking curing form the stabilized zone casting die through lamination process;
6, EL rechecks: defectives the such as whether assembly that inspection layer presses has the battery sheet to conceal splits, fragment; Need to prove; Said EL test is the electroluminescence test, behind the solar module on-load voltage, makes it luminous; Utilize its luminous image of near infrared camera picked-up again; Because of electroluminescence brightness is proportional to minority diffusion length, fault location sends more weak light because of having lower minority diffusion length, thereby forms darker image.Through to the product defects image observation, can effectively find defects of battery plate;
7, general assembly: outside appurtenancess such as aluminium frame, terminal box and bypass diode module are installed;
8, component insulation voltage-withstand test: between the non-conductive aluminium frame of assembly junction box exit and exposure, apply the direct voltage of 3000V and continue 1 minute (voltage rose to 3000V with stable and uniform speed in 10 seconds, and the leakage current between two parts can not surpass 50uA).Observe cell panel in the process of the test and whether produce electric arc or spark;
9, component power test: before the test suite; At first use nominal power tester through certification authority's " standard package " that demarcate, qualified (also claiming " mark sheet "); After parameters such as the power of the feasible mark of adjusting power measuring sheet, voltage, electric current reach calibration value; Use this power measuring to continue again to mark sheet continuous measurement 5 times, if 5 measured values is poor≤± 0.2W, then power measuring is demarcated and is accomplished.Simultaneously assembly is tested and is write down numerical value.
Visible by above technical scheme provided by the invention; Compared with prior art; The invention provides a kind of anti-solar module that blocks based on the multiple diode module; It passes through to change the composing and the connected mode of battery strings, and a plurality of bypass diodes are set, and can effectively remedy because of light blocks the energy output that causes to lose.
The present invention only adopts the diode protection element in the diverter branch of battery strings; Cost gain simultaneously is not obvious; Remain on original level, just can realize greatly reducing because light takes place and block the power loss that causes, thereby make the actual power amount of assembly improve greatly.
For the solar module based on the multiple diode module provided by the invention; It makes whole assembly form a plurality of loops 30; Thereby under occlusion state, even because shelter makes that the battery sheet in its cocircuit still can normally carry out opto-electronic conversion when battery sheet in certain several loop wherein can't operate as normal; Avoided whole assembly when blocking, to lose efficacy, reached and improve charge efficiency and prolong the assembly effect in useful life.
Therefore, in sum, compared with prior art; A kind of anti-solar module that blocks provided by the invention based on the multiple diode module, it is when vertical the installation, even blocked by shelter parts such as dust, accumulated snow; Still can normally carry out opto-electronic conversion work, improve the energy output in the unit interval, help improving the whole serviceability and the operating efficiency of solar module; Market application foreground for enlarging solar battery product is of great practical significance.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (6)
1. anti-solar module that blocks based on the multiple diode module; It is characterized in that; Said solar module includes a plurality of loops (30); Each said loop (30) includes at least two battery strings (20), and adjacent two battery strings (20) are cascaded each other arbitrarily;
Each loop (30) all is parallel with at least one diode D;
Said battery strings (20) is arranged in parallel within the said solar module along preset direction.
2. as claimed in claim 1ly anti-block solar module, it is characterized in that said battery strings (20) is arranged in parallel within the solar module along the minor face of said solar module.
3. as claimed in claim 1ly anti-block solar module, it is characterized in that each loop (30) all are parallel with a said diode D or are in parallel with a plurality of said diode D that are connected in parallel.
4. as each describedly anti-blocks solar module in the claim 1 to 3, it is characterized in that each battery strings (20) includes a plurality of solar battery sheets that are cascaded (10).
5. as claimed in claim 4ly anti-block solar module, it is characterized in that, link together through interconnecting strip (50) between any two adjacent solar battery sheets (10) in each battery strings (20);
Be cascaded through the band (60) that confluxes between adjacent arbitrarily two battery strings (20).
6. the anti-solar module that blocks as claimed in claim 1; It is characterized in that; The loop (30) that is positioned at said solar module bottom includes two battery strings (20), and the loop (30) that is positioned at said solar module middle part and top includes at least two battery strings (20).
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931241A (en) * | 2012-11-26 | 2013-02-13 | 晶科能源有限公司 | Crystalline silicon component |
| CN103390672A (en) * | 2013-08-02 | 2013-11-13 | 北京汉能创昱科技有限公司 | Integrated thin-film solar battery component and preparation method thereof |
| CN104646788A (en) * | 2015-02-28 | 2015-05-27 | 李忠炎 | Process and equipment for manually welding solar components |
| CN105655431A (en) * | 2016-01-04 | 2016-06-08 | 河海大学常州校区 | Photovoltaic assembly and method based on optimal allocation of bypass diodes |
| CN107293608A (en) * | 2017-05-25 | 2017-10-24 | 河北曹妃甸汉能薄膜太阳能有限公司 | Cylinder manifold, double glass Thinfilm solar cell assemblies and preparation method thereof |
| CN107611211A (en) * | 2017-09-20 | 2018-01-19 | 山东拜科通新材料科技有限公司 | The method and circuit of a kind of enhancing electrical safety performance for solar energy back contacts |
| CN107690708A (en) * | 2017-08-28 | 2018-02-13 | 通威太阳能（合肥）有限公司 | A kind of photovoltaic module internal protection circuitry structure with independent generator unit |
| CN108281499A (en) * | 2018-03-09 | 2018-07-13 | 天合光能股份有限公司 | Novel circuit design's photovoltaic cell subassembly |
| CN109103288A (en) * | 2018-10-09 | 2018-12-28 | 黄石金能光伏有限公司 | A kind of photovoltaic module manufacturing method and photovoltaic module |
| CN109244187A (en) * | 2018-09-21 | 2019-01-18 | 北京恒信卓元科技有限公司 | A kind of manufacturing method of highly reliable photovoltaic module |
| CN109920873A (en) * | 2019-04-11 | 2019-06-21 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | A kind of total bypass protection crystalline silicon solar cell modules |
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| WO2020253717A1 (en) * | 2019-06-18 | 2020-12-24 | 苏州携创新能源科技有限公司 | Hot-spot-resistant super-dense arrangement-based photovoltaic assembly |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931241A (en) * | 2012-11-26 | 2013-02-13 | 晶科能源有限公司 | Crystalline silicon component |
| CN102931241B (en) * | 2012-11-26 | 2015-11-11 | 晶科能源有限公司 | A kind of crystalline silicon component |
| CN110707110A (en) * | 2013-02-15 | 2020-01-17 | 瑞吉恩资源有限公司 | Battery module |
| CN110707110B (en) * | 2013-02-15 | 2023-11-03 | 瑞吉恩资源有限公司 | battery module |
| JP2021170930A (en) * | 2013-07-05 | 2021-10-28 | アールイーシー ソーラー プライベート リミテッド | Solar cell assembly |
| CN103390672A (en) * | 2013-08-02 | 2013-11-13 | 北京汉能创昱科技有限公司 | Integrated thin-film solar battery component and preparation method thereof |
| CN103390672B (en) * | 2013-08-02 | 2016-08-10 | 北京汉能创昱科技有限公司 | A kind of integrated thin-film solar battery component and preparation method thereof |
| CN104646788A (en) * | 2015-02-28 | 2015-05-27 | 李忠炎 | Process and equipment for manually welding solar components |
| CN105655431A (en) * | 2016-01-04 | 2016-06-08 | 河海大学常州校区 | Photovoltaic assembly and method based on optimal allocation of bypass diodes |
| CN107293608B (en) * | 2017-05-25 | 2019-08-16 | 河北曹妃甸汉能薄膜太阳能有限公司 | Cylinder manifold, double glass Thinfilm solar cell assemblies and preparation method thereof |
| CN107293608A (en) * | 2017-05-25 | 2017-10-24 | 河北曹妃甸汉能薄膜太阳能有限公司 | Cylinder manifold, double glass Thinfilm solar cell assemblies and preparation method thereof |
| CN107690708A (en) * | 2017-08-28 | 2018-02-13 | 通威太阳能（合肥）有限公司 | A kind of photovoltaic module internal protection circuitry structure with independent generator unit |
| CN107611211A (en) * | 2017-09-20 | 2018-01-19 | 山东拜科通新材料科技有限公司 | The method and circuit of a kind of enhancing electrical safety performance for solar energy back contacts |
| CN108281499A (en) * | 2018-03-09 | 2018-07-13 | 天合光能股份有限公司 | Novel circuit design's photovoltaic cell subassembly |
| CN108281499B (en) * | 2018-03-09 | 2023-10-13 | 天合光能股份有限公司 | Novel photovoltaic cell assembly with circuit design |
| CN109244187A (en) * | 2018-09-21 | 2019-01-18 | 北京恒信卓元科技有限公司 | A kind of manufacturing method of highly reliable photovoltaic module |
| CN109103288A (en) * | 2018-10-09 | 2018-12-28 | 黄石金能光伏有限公司 | A kind of photovoltaic module manufacturing method and photovoltaic module |
| CN109920873A (en) * | 2019-04-11 | 2019-06-21 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | A kind of total bypass protection crystalline silicon solar cell modules |
| CN109920873B (en) * | 2019-04-11 | 2024-04-05 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | Full bypass protection crystalline silicon solar cell module |
| WO2020253717A1 (en) * | 2019-06-18 | 2020-12-24 | 苏州携创新能源科技有限公司 | Hot-spot-resistant super-dense arrangement-based photovoltaic assembly |
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