CN108809252A - A kind of preventing hot spot imbrication component and its integrated framework and production method - Google Patents
A kind of preventing hot spot imbrication component and its integrated framework and production method Download PDFInfo
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- CN108809252A CN108809252A CN201711250660.5A CN201711250660A CN108809252A CN 108809252 A CN108809252 A CN 108809252A CN 201711250660 A CN201711250660 A CN 201711250660A CN 108809252 A CN108809252 A CN 108809252A
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- 239000000178 monomer Substances 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 5
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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
- H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
-
- 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
- H01L31/048—Encapsulation of modules
-
- 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
-
- 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
-
- 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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- 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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a kind of preventing hot spot imbrication component and its integrated framework and production methods, including：Two battery modules are in series to form a plane device, and a battery module draws positive wire end, and another battery module then draws negative wire end, middle leads end is drawn between two battery modules；One intelligent wiring box, including two diodes and three stems, diode described in two of which are connected by the stem；An and integrated framework.
Description
Technical field
The present invention relates to solar cell module field more particularly to a kind of preventing hot spot imbrication components and its integrated framework knot
Structure and production method.
Background technology
With the development that science and technology is with rapid changepl. never-ending changes and improvements, photovoltaic power generation technology is at home and abroad widely used, photovoltaic group
Part can convert light energy into electric energy, and the cell piece being encapsulated in photovoltaic module is the photoelectric conversion unit of photovoltaic module.It is answered
Varied with form, application places are widely distributed, are mainly used for the room of large-scale ground photovoltaic plant, house and commercial buildings
Top, building Photovoltaic Building Integration, optical road lamp etc..In practical applications, solar cell is usually by polylith battery component
It is together in series or parallel, to obtain desired voltage or electric current.In order to reach higher photoelectric conversion efficiency, battery component
In each piece of cell piece must all have similar characteristic.
In use, when any a piece of cell piece is blocked in battery strings, being taken as load consumption, other have
Energy caused by the solar module of illumination, this piece cell piece cannot generate electricity, the resistance meeting for the cell piece that cannot be generated electricity
Become larger, if not installing diode, this piece cell piece can consume the electric energy that remaining cell piece is sent out, and so that solder joint is melted, and generate heat
Component is burnt, hot spot effect is generated, hot spot is extremely unstable, it will usually which gradually aggravation is indicated until with generated energy and/or safety
Assembly property it is entirely ineffective.Install diode after, diode plays the role of forward conduction backward stop, this piece cell piece by
Become larger in blocking resistance, electric current can not pass through so that there are pressure drops at diode both ends, open diode, by battery strings short circuit, no
Hot spot effect is will produce, photovoltaic module will not be burnt.
The cell piece that grid line redesigns is cut into the small pieces of reasonable figure using microtomy by imbrication battery component, will
The superposition arrangement per small pieces, welding production bunchiness, using being laminated into component after connection in series-parallel typesetting.In this way so that battery is with closer
Mode interlink, increase the distribution of unit area battery, it is excellent to increase component efficiency, and due to this modular construction
Change, greatly reduces the line loss of component, better heat resistanceheat resistant spot and anti-hatching effect, the output power of component is greatly improved.
The technical threshold of imbrication component is higher, and the performance of solar battery sheet is to influence a key factor of photoelectric conversion efficiency, light
Photoelectric transformation efficiency is higher, and the electric current that the more solar battery sheets of grid line are collected is more.Busbar is one in photovoltaic module
Part, mainly as the circuit connection unit of collected current in photovoltaic component encapsulating technique, specially between battery strings
Joining unit and internal electric energy are output to the lead-out wire unit of intelligent wiring box.Since the lamination between battery strings needs, confluence
It will appear intersection between item, have and contact between the materials such as busbar and other batteries, EVA or backboard, to avoid occurring not
Necessary accident needs to insulate between busbar or between busbar and other materials.Since busbar is integrally electrically conductive, institute
With the insulation between busbar in the prior art or between busbar and other materials generally by insulation strip mutually every
From mode be achieved, need to increase additional packaging technology, and busbar and insulation strip are narrower, it is fixed to be not easy to realize
Position prevents, and consumes manpower and time significantly, causes production efficiency low.
Currently, most of photovoltaic module manufacturer all realizes automated production, i.e., by assembly line form by tempering
Glass, EVA are flowed on the platform beside manipulator after laying and are stopped under infrared induction, in addition an automation flowing water
The multiple cell pieces of bundle of lines carry out single weldering with welding, and series welding is transported at cell piece string beside manipulator, and manipulator is cell piece string
It conveys and positions and be placed on the EVA laid just now；It is artificial to be laid with busbar and insulation strip after cell piece string is placed,
Wait for busbar welding after, assembly line operation and by EVA, backboard is laid with successively, by after test inflow laminating machine into
Row lamination, finally automates deburring again, fills aluminium frame, fills intelligent wiring box.Therefore occur during automation
Manual operation, and this manual operation easily occurs between busbar and busbar, busbar, insulating trip and outermost battery
Between piece placement offset, it is a series of deviate eventually lead to photovoltaic module electrical property or appearance it is unqualified, and it is this not
Qualified component can not do over again.And to accurately position placement and welding, then and manpower and time are consumed significantly, lead
Cause production efficiency low, this has become the bottleneck of entire automatic production line.
In view of this, it would be highly desirable in view of the above technical problems, design and make a kind of preventing hot spot imbrication component, can avoid producing
There is higher working efficiency again while raw hot spot effect, it is cost-effective.
Invention content
The object of the present invention is to provide a kind of preventing hot spot imbrication components, wherein by improving in the preventing hot spot imbrication component
Portion's electric connecting mode overcomes existing solar battery sheet to be caused what generating efficiency was greatly lowered to ask by hot spot effects
Topic.
It is a further object of the present invention to provide a kind of preventing hot spot imbrication components, wherein the preventing hot spot imbrication component includes two
A battery module is serially connected composition, wherein the battery module includes an at least battery strings, the battery conspires to create matrix arrangement,
Between the row head and row head of adjacent two battery strings, all it is connected in parallel by welding between row tail and row tail.
It is a further object of the present invention to provide a kind of preventing hot spot imbrication components, wherein it is identical that a cell piece is cut into area
At least one slice battery, it is preceding it is a piece of it is described slice battery the back side snap into it is rear it is a piece of it is described slice battery front, successively
Superposition, the battery strings bond at least all piece battery compositions by conducting resinl, and conducting resinl is by the cathode main grid of previous slice battery
It is bonded with the positive main grid of latter slice battery, the slice is concatenated without reusing interconnecting strip by such imbricated texture
Battery reduces influence of the interconnecting strip resistance to component power, ensures the minimum power loss during component package.
It is a further object of the present invention to provide a kind of preventing hot spot imbrication components, wherein the preventing hot spot imbrication component includes one
Intelligent wiring box, there are two diode and three stems for tool, and three stems are two side stems and one respectively
Middle leads column, diode described in two of which are connected by the stem, connect a side simultaneously per the diode
Stem and described middle leads column；One battery module draws positive wire end, and another battery module is then drawn
Negative wire end, middle leads are drawn between two battery modules, and three leads are connected to the intelligent wiring
Three stems of box, the positive wire end and the negative wire end are separately connected two side stems, described
Middle leads end connects the middle leads column；When component works normally, the diode is in cut-off state, to arbitrary phase
Any effect does not occur for the circuit of the battery module even；And when hot spot effect occurs, in order to avoid burning the solar heat protection
Spot imbrication component, the electricity of the short-circuit battery module of the diode breakdown being connected with the battery module that hot spot occurs
Road, the diode being connected with the normal battery module is in running order, while middle leads replacement is short
That lead on road, to ensure that the battery module that hot spot does not occur can work normally.
It is a further object of the present invention to provide a kind of integrated frameworks of preventing hot spot imbrication component, due to the battery strings
Circuit it is more, traditional line connection is complex, need manually carefully operation, and by be arranged an integrated framework make institute
Preventing hot spot imbrication establishment of component process simplification is stated, and can guarantee circuit accurately connection and guarantee busbar and irrelevant slice electricity
Pool insulation, error and raising working efficiency when can reduce manual operation.
It is a further object of the present invention to provide a kind of integrated frameworks of preventing hot spot imbrication component, wherein the cell piece
Front be arranged at intervals with several cathode main grids and several thin grid, the cathode main grid intersects vertically with the thin grid and is connected to, institute
Cathode main grid is stated by the electric current collection on each thin grid to being transferred out together by the integrated framework, further by right
The vertical river outlet of the grid line carries out widening treatment so that the cathode main grid collects more electric currents, to improve photovoltaic
Imbrication component efficiency.
It is a further object of the present invention to provide a kind of integrated frameworks of preventing hot spot imbrication component, integrated by setting one
Frame neither influences the light-receiving area of the preventing hot spot imbrication component in the back side of the preventing hot spot imbrication component, is also easy to return
It repaiies.
It is a further object of the present invention to provide a kind of preventing hot spot imbrication component and its integrated framework and production method,
Described in preventing hot spot imbrication component lines it is few easy to operate, it is not only cost-saved using intelligent wire box, but also component can be made more
Safety, preventing hot spot, and generated energy higher.
It is a further object of the present invention to provide a kind of preventing hot spot imbrication component and its integrated framework and production method,
Described in the delivery efficiency of preventing hot spot imbrication component be further enhanced relative to the delivery efficiency of common component.
It is a further object of the present invention to provide a kind of preventing hot spot imbrication component and its integrated framework and production method, systems
It is simple, time saving and energy saving to make method, it is easy to spread, avoid the security risks such as fire.
In order to realize above-mentioned at least one purpose, the present invention provides a kind of preventing hot spot imbrication components comprising：
Two battery modules are in series to form a plane device, and a battery module draws positive wire end, another
The battery module then draws negative wire end, and middle leads end is drawn between two battery modules；
One intelligent wiring box, including two diodes and three stems, diode described in two of which are drawn by described
Terminal is connected；And
One integrated framework,
The wherein described positive wire end, the negative wire end, the middle leads end are separately connected the stem；?
When component works normally, the diode is in cut-off state, does not make to the circuit of the arbitrarily connected battery module
With；And when hot spot effect occurs, short-circuit this is described with the diode breakdown that is connected of the battery module that hot spot occurs
The circuit of battery module, another diode being connected with the normal battery module are in running order while described
Middle leads end substitutes the lead end for the battery module being short-circuited, to ensure that the battery module that hot spot does not occur can
Normal work.
In some embodiments, the battery module includes an at least battery strings, and the battery conspires to create matrix arrangement, adjacent
Between the row head and row head of two battery strings, all it is connected in parallel by welding between row tail and row tail.
In some embodiments, at least one battery strings are preferably 5.
In some embodiments, a cell piece is cut into the identical at least one slice battery of area, it is preceding a piece of described to cut
The back side of piece battery snaps into the front of the rear a piece of slice battery, and the battery strings bond at least all pieces electricity by conducting resinl
Pond forms, and the cathode main grid of previous slice battery bonds the positive main grid of latter slice battery, two adjacent slice batteries
The positive main grid and the cathode main grid be electrically connected according to imbrication form, by such imbricated texture without reusing
Interconnecting strip concatenates the slice battery, reduces influence of the interconnecting strip resistance to component power, ensures during component package most
Little power loss.
In some embodiments, the front of the slice battery is evenly equipped with several spaced thin grid, the cathode
Main grid intersects vertically to converge with the thin grid and be connected to, and passes through all grid lines between main grid and thin grid, between thin grid and thin grid
River outlet carries out widening treatment, is widened at least 0.1mm from traditional 0.04mm so that the cathode main grid is collected into more
Electric current.
In some embodiments, at least one slice battery is preferably 34 pieces.
In some embodiments, the slice battery quilt of row head is located in each battery strings of a battery module
Positive wire is drawn, opposite, the slice battery positioned at row tail is brought out negative wire；Another battery module it is each
The slice battery in the battery strings positioned at row head is brought out negative wire, opposite, is located at the slice electricity of row tail
Pond is brought out positive wire；The anode and cathode of adjacent two battery strings in the battery module are in the same mounting plane
Longitudinal direction on arrange in the same direction, to keep the position of the anode of the positive battery strings adjacent thereto per the battery strings mutual
Close, the position of the cathode of the cathode battery strings adjacent thereto per the battery strings is close to each other.
In some embodiments, the integrated framework is set to the back side of the battery module, and the integrated framework uses
The compound busbar of EPE insulation strips positions after accurately cutting to be pasted, and the electricity of the slice battery is drawn by the busbar
Stream, the EPE insulation strips play the isolation slice battery and are not in contact with the busbar to avoid short circuit is caused, and pass through institute
Integrated framework is stated to simplify the operating procedure of staff and shorten the time of laminating technology.
In some embodiments, the welding positioned at row head and row tail is folded into the back side of the battery module to connect
It is separated in the busbar and by the EPE insulation strips and avoids short circuit.
In some embodiments, the positive wire and negative wire of the battery strings pass through the remittance with the integrated framework
After flowing item welding, positive wire positive wire electrically in parallel, negative wire negative wire electrically in parallel；One battery module is from parallel connection
In circuit afterwards positive wire end, another battery module position from the circuit after parallel connection are drawn positioned at the battery strings of the first ranks head
Negative wire end is drawn in the battery strings of last ranks head, two battery modules are located in the series circuit of row tail in extraction
Between lead end.
In some embodiments, three stems of the intelligent wiring box are divided into two side stems and one
Middle leads column connects a side stem and the middle leads column, the positive wire end per the diode simultaneously
Two side stems are separately connected with the negative wire end, the middle leads end connects the middle leads column.
Preferably, the integrated framework is H-type design structure, and the length of integrated framework two sides section is matched with described
The longitudinal length of preventing hot spot imbrication component, the intermediate segment length of the integrated framework are matched with the cross of the preventing hot spot imbrication component
To length.
According to another aspect of the present invention, a kind of production method of preventing hot spot imbrication component is additionally provided, same control gauge is compared
The existing battery component of lattice, by the way that the structure of two battery modules and two diodes is arranged, to solve the problems, such as the mode of hot spot.
Overall construction of the present invention comprising installation base plate, frame, intelligent wiring box does not change, and area need not also increase, in material
The part of integrated framework is increased only in cost, and uses monomer intelligent wiring box, can save the material cost of nearly half.Together
When present invention reduces the security risk brought of component area is increased, the technical solution made is such, which is characterized in that
It is carried out by following steps：Cell piece scribing, slice battery carry out lamination and form battery strings, welding strip soaking processing, tempering glass
Glass-EVA-battery module-integrated framework-EVA-backboard, intermediate survey, lamination, burr removing, installation aluminum alloy frame, peace
Fill monomer intelligent wiring box, appearance cleaning, module testing, voltage-withstand test, appearance test.
Preferably, the backboard can select glass material.
Description of the drawings
Fig. 1 is a kind of circuit diagram of preventing hot spot imbrication component in the embodiment of the present invention.
Fig. 2 is a kind of battery strings front printing figure of preventing hot spot imbrication component in the embodiment of the present invention.
Fig. 3 is the partial enlarged view of Fig. 2.
Fig. 4 is a kind of battery modular structure schematic diagram of preventing hot spot imbrication component in the embodiment of the present invention.
Fig. 5 is a kind of integrated framework schematic diagram of preventing hot spot imbrication component in the embodiment of the present invention.
Fig. 6 is a kind of preventing hot spot imbrication component positive structure schematic in the embodiment of the present invention.
Fig. 7 is a kind of intelligent wiring box scheme of installation of preventing hot spot imbrication module backside in the embodiment of the present invention.
It is in figure：
Preventing hot spot imbrication component 100；
Battery module 10, battery strings 110, slice battery 111, positive main grid 112, cathode main grid 113, thin grid 114, grid line
River outlet 115, positive wire end 11, negative wire end 12, middle leads end 13, welding 14；
Intelligent wiring box 20, diode 21；
Integrated framework 30, busbar 31, EPE insulation strips 32；
Specific implementation mode
It is described below for disclosing the present invention so that those skilled in the art can realize the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description
The present invention basic principle can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
As shown in Figures 1 to 7, a kind of preventing hot spot imbrication component 100 is provided according to one preferred embodiment of the present invention, is wrapped
It includes：Two battery modules 10 are in series to form a plane device, and a battery module 10 draws positive wire end 11, another
The battery module 10 then draws negative wire end 12, and middle leads end 13 is drawn between two battery modules 10；One intelligence
Terminal box 20, including two diodes 21 and three stems, diode 21 described in two of which are connected by the stem；
And an integrated framework 30, wherein the positive wire end 11, the negative wire end 12, the middle leads end 13 connect respectively
Connect the stem；When component works normally, the diode 21 is in cut-off state, to the arbitrarily connected battery mould
The circuit of block 10 is not had an effect；And when hot spot effect occurs, with occur hot spot the battery module 10 be connected described in
The circuit of 21 puncture short of the diode battery module 10, another described two to be connected with the normal battery module 10
Pole pipe 21 is in running order, while the middle leads end 13 substitutes the lead end for the battery module 10 being short-circuited, with
Ensure that the battery module 10 that hot spot does not occur can work normally.
Circuit diagram as shown in Figure 1, two battery modules 10 are in series, and each battery module 10 includes 5 row electricity
Pond string 110, the battery strings 110 are in parallel between battery strings and battery strings at matrix arrangement, between battery module and battery module
Series connection forms the circuit theory of five and two strings.
Specifically, between the row head and row head of adjacent two battery strings 110, all pass through welding 14 between row tail and row tail
It is connected in parallel.Specifically, a cell piece is cut into the identical 34 pieces of slices battery 111 of area, the preceding a piece of slice battery
111 back side snaps into the front of the rear a piece of slice battery 111, and the battery strings 110 are by 34 pieces of slices of conductive gluing knot
Battery 111 form, it is previous slice battery 111 cathode main grid 113 bond it is latter slice battery 111 positive main grid 112, two
The positive main grid 112 and the cathode main grid 113 of the adjacent slice battery 111 are electrically connected according to imbrication form, are passed through
Such imbricated texture concatenates the slice battery 111 without reusing interconnecting strip, reduces interconnecting strip resistance to component power
Influence, ensure component package during minimum power loss.What is particularly worth mentioning is that although various embodiments of the present invention
In mainly illustrate 5 row battery strings 110 construction battery module 11 mode, but battery strings 110 and be sliced battery 111 number
Amount is not limited thereto, because according to the invention discloses method and structure, need to only increase the quantity of battery module 11, Ke Yishi
Answer more demands.
The slice battery 111 in each battery strings 110 of the battery module 10 positioned at row head is brought out anode
Lead, opposite, the slice battery 111 positioned at row tail is brought out negative wire；Each institute of another battery module 10
It states in battery strings 110 and is brought out negative wire positioned at the slice battery 111 of row head, it is opposite, positioned at being cut described in row tail
Piece battery 111 is brought out positive wire；The anode and cathode of adjacent two battery strings 110 in the battery module 10 are same
It is arranged in the same direction on the longitudinal direction of one mounting plane, to make per the anode of the battery strings 110 battery strings adjacent thereto
The position of 110 anode is close to each other, the cathode per the cathode battery strings 110 adjacent thereto of the battery strings 110
Position is close to each other.
In the imbrication component of this structure, when all slice batteries 111 are blocked, the slice battery that is blocked
111 resistance will become larger, and electric current can not pass through so that the two poles of the earth of the battery strings 110 there are pressure drop, this pressure drop can puncture with
This 110 concatenated diode 21 of battery strings, the slice battery 111 being only blocked are short by the diode 21 of series connection with it
Road, remaining described slice battery 111 export electric energy since the effect of another diode can work normally.It can keep away
Exempt from preventing hot spot imbrication component 100 described in this slice 111 heating burnout of battery, that is, avoids the slice battery 111 being blocked
Generate hot spot effect.And in the prior art, it is when there is the slice battery 111 to be blocked in photovoltaic module, short circuit is all
Battery strings 110.Preventing hot spot imbrication component 100 provided by the invention is blocked compared with prior art, when there is slice battery 111
When, another piece of battery module 11 not blocked can also work on, and have higher working efficiency.
As shown in Figure 2 to Figure 3, the front of the slice battery 111 is evenly equipped with several spaced thin grid 114, institute
It states cathode main grid 113 and the thin grid 114 confluence that intersects vertically to be connected to, the cathode main grid 113 will be on each thin grid 114
Electric current collection to together, added by all grid line river outlets 115 between main grid and thin grid, between thin grid and thin grid
Width processing, is widened at least 0.1mm so that the cathode main grid 113 collects more electric currents from traditional 0.04mm.Through experiment
100 maximum power of preventing hot spot imbrication component of the test present invention is 293.94, is calculated with size of components 1623*1048,
Component efficiency=293.94/ (1623*1048) * 1000=17.28% (retain two-decimal), and the efficiency of common component is
16.9%.
The integrated framework 30 is set to the back side of the battery module 10, as shown in figure 5, the integrated framework 30 uses
Compound busbar 31 positions after accurately cutting to be pasted, and the electric current of the slice battery 111 is drawn by the busbar 31,
The EPE insulation strips 32 play the isolation slice battery 111 and are not in contact with the busbar 31 to avoid short circuit is caused, logical
The integrated framework 30 is crossed to simplify the operating procedure of staff and shorten the time of laminating technology.
Specifically, the welding 14 positioned at row head and row tail is folded into the back side of the battery module 10 to be connected to
It states busbar 31 and is separated by the EPE insulation strips 32 and avoid short circuit.
Specifically, the positive wire and negative wire of the battery strings 110 pass through the busbar with the integrated framework 30
After 31 welding, positive wire positive wire electrically in parallel, negative wire negative wire electrically in parallel；One battery module 10 is from parallel connection
Positive wire end 11 is drawn positioned at the battery strings 110 of the first ranks head in circuit afterwards, another battery module 10 is after parallel connection
Negative wire end 12 is drawn positioned at the battery strings 110 of last ranks head in circuit, two battery modules 10 are located at row tail
Middle leads end 13 is drawn in series circuit.
Preferably, the integrated framework 30 is H-type design structure, and the length of 30 two sides of integrated framework section is matched with
The longitudinal length of the preventing hot spot imbrication component 100, the intermediate segment length of the integrated framework 30 are matched with the preventing hot spot and fold
The lateral length of watt component 100.
Specifically, three stems of the intelligent wiring box 20 are divided into two side stems and a centre is drawn
Terminal connects a side stem and the middle leads column, 11 He of positive wire end simultaneously per the diode 21
The negative wire end 12 is separately connected two side stems, and the middle leads end 13 connects the middle leads
Column.
According to another aspect of the present invention, a kind of production method of preventing hot spot imbrication component is additionally provided, same control gauge is compared
The existing battery component of lattice, by the way that the structure of two battery modules and two diodes is arranged, to solve the problems, such as the mode of hot spot.
Overall construction of the present invention comprising installation base plate, frame, intelligent wiring box does not change, and area need not also increase, in material
The part of integrated framework is increased only in cost, and uses monomer intelligent wiring box, can save the material cost of nearly half.Together
When present invention reduces the security risk brought of component area is increased, the technical solution made is such, this is described below
The specific process of invention：Cell piece scribing, slice battery carry out lamination and form battery strings, welding strip soaking processing, tempering glass
Glass-EVA-battery module-integrated framework-EVA-backboard, intermediate survey, lamination, burr removing, installation aluminum alloy frame, peace
Fill monomer intelligent wiring box, appearance cleaning, module testing, voltage-withstand test, appearance test.
Preferably, the backboard can select glass material.
(1) cell piece scribing：Scribing is carried out using the traditional photovoltaic cell of laser or diamond pair one, in photovoltaic cell
It is upper to form 50~150 μm of depth, then solar cell is carried out to break piece along the place of scribing using breaking sheet devices, forms strip
It is sliced battery；As shown in Fig. 2, several cathode main grids and thin grid are equidistantly printed on the slice battery front side, it is described negative
Pole main grid width is 1mm, and the width of the thin grid is 0.4mm, and the anode main grid width is 1.8mm, the vertical river outlet of grid line
It is widened to 0.1mm than traditional 0.04mm.
(2) imbrication：Several described slice batteries are bonded to the rectangular battery strings of planar shaped with conducting resinl；
(3) welding strip soaking is handled：Suitable welding is taken to be laid in special immersion basket, welding placement wants straight, then falls
Enter to be less than or equal to the special scaling powder for impregnating 2/3 volume of basket to impregnate 6 minutes~8 minutes, impregnates welding weight every time and be no more than
6KG；The welding taking-up impregnated in basket is placed in iron net box and is filtered dry 2 minutes~3 minutes；It is at the uniform velocity swung with hair-dryer or so again
Welding (hair-dryer is 2cm~5cm or so with welding vertical height) is dried up, so that welding is heated evenly, until welding surface should be sent out
Until white.Qualified welding surface residue area coverage is 80% or more；Welding must use winding film to wrap up, and avoid
Oxidation.
(4) front welding：The row head and row tail of adjacent two battery strings are burn-on the welding handled by step 3 respectively,
Welding must be connected to battery front side row head and row tail with conducting resinl as early as possible after step 3 processing, and it is small to must not exceed 8 at the latest
When；
(5) row's weldering：A certain number of battery series-parallel connections by front welding are got up according to circuit diagram, form a band
There is the battery module of positive and negative lead wires；It is provided with middle leads between two battery modules；
(6) it is laminated：According to component electric current, the demanded power output of voltage, battery strings are subjected to the combination that is arranged in parallel, and will
Battery module, tempered glass and the EVA cut, integrated framework are laid according to certain requirement；This method passes through integrated framework
The structure of integrated bus bars and insulation strip, the step of busbar and insulation strip need to be positioned manually when simplifying traditional operation, shorten
Stacking time.
(7) intermediate survey：Whether there is or not bad defects for the component to be laminated that inspection layer is folded, it is ensured that component lamination is once qualified
Rate；
(8) component lamination：The product being laminated is put into laminating machine, by vacuumizing the air extraction in component,
Then heating makes EVA fusings that battery, glass and backboard to bond together；
(9) deburring：Extended outwardly due to pressure after EVA fusings when lamination and be formed by curing flash, so lamination is finished and answered
It is cut off；
(10) it frames up：Aluminum alloy frame is installed to glass assembly, is expired with silicone filler in frame, the strong of component can be increased
Degree, further sealed cell component, and extend the service life of battery；
(11) intelligent wiring box is installed：One monomer intelligent wiring box is installed at module backside lead, in favor of component
Being reliably connected between component or between other equipment；
(12) appearance is cleared up：The protective film outside aluminium frame is removed, clean-out assembly surface is dirty；
(13) module testing：It tests it and exports electrical characteristics, the output power of component is demarcated；
(14) voltage-withstand test：Apply certain voltage between module frame and contact conductor, the resistance to pressure of test suite and
Dielectric strength, to ensure that component is not damaged under severe natural conditions (lightning stroke etc.)；
(15) appearance test：Check that with the presence of zero defect, grade judgement is carried out to appearance for component facade；
(16) packaging and storage：By component by same specification, same to power, ad eundem requirement carry out packaging and storage.
It should be understood by those skilled in the art that the embodiment of the present invention shown in foregoing description and attached drawing is only used as illustrating
And it is not intended to limit the present invention.The purpose of the present invention has been fully and effectively achieved.The function and structural principle of the present invention exists
It shows and illustrates in embodiment, under without departing from the principle, embodiments of the present invention can have any deformation or modification.
Claims (10)
1. a kind of preventing hot spot imbrication component, which is characterized in that including：
Two battery modules are in series to form a plane device, and a battery module draws positive wire end, another described
Battery module then draws negative wire end, and middle leads end is drawn between two battery modules；
One intelligent wiring box, including two diodes and three stems, diode described in two of which pass through the stem
Series connection；And
One integrated framework,
The wherein described positive wire end, the negative wire end, the middle leads end are separately connected the stem；In component
When normal work, the diode is in cut-off state, does not have an effect to the circuit of the arbitrarily connected battery module；And
When hot spot effect occurs, with occur hot spot the battery module be connected the diode breakdown short circuit battery mould
The circuit of block, another diode being connected with the normal battery module is in running order, while the centre is drawn
Line end substitutes the lead end for the battery module being short-circuited, to ensure that the battery module that hot spot does not occur being capable of normal work
Make.
2. preventing hot spot imbrication component according to claim 1, which is characterized in that the battery module includes an at least battery
String, the battery conspire to create matrix arrangement and all pass through between row tail and row tail between the row head and row head of adjacent two battery strings
Welding is connected in parallel.
3. preventing hot spot imbrication component according to claim 1, which is characterized in that the preventing hot spot imbrication component passes through an electricity
Pond piece cuts into the identical at least one slice battery of area, and the back side of the preceding a piece of slice battery snaps into rear a piece of described cut
The front of piece battery, the battery strings bond at least all piece battery compositions, the cathode main grid of previous slice battery by conducting resinl
The positive main grid of latter slice battery is bonded, two adjacent positive main grids for being sliced battery and the cathode main grid are pressed
It is electrically connected according to imbrication form；The front of the slice battery is evenly equipped with several spaced thin grid, the cathode main grid with
The thin grid intersect vertically to converge and be connected to, and pass through all grid line river outlets between main grid and thin grid, between thin grid and thin grid
Widening treatment is carried out at least 0.1mm so that the cathode main grid is collected into more electric currents.
4. preventing hot spot imbrication component according to claim 2, which is characterized in that each battery of a battery module
The slice battery in string positioned at row head is brought out positive wire, and opposite, the slice battery positioned at row tail is brought out
Negative wire；Cathode is brought out in each battery strings of another battery module positioned at the slice battery of row head to draw
Line, opposite, the slice battery positioned at row tail is brought out positive wire；Adjacent two battery in the battery module
The anode and cathode of string are arranged in the same direction on the longitudinal direction of the same mounting plane, to make the anode per the battery strings and its phase
The position of the anode of the adjacent battery strings is close to each other, and the cathode battery strings adjacent thereto per the battery strings are born
The position of pole is close to each other.
5. preventing hot spot imbrication component according to claim 4, which is characterized in that the integrated framework is set to the battery
The back side of module, the integrated framework is positioned after accurately being cut using the compound busbar of EPE insulation strips to be pasted, by described
Busbar draws the electric current of the slice battery, and the EPE insulation strips play the isolation slice battery and the busbar not
It is in contact to avoid short circuit is caused, the operating procedure of staff is simplified by the integrated framework and shortens laminating technology
Time.
6. preventing hot spot imbrication component according to claim 5, which is characterized in that the welding for being located at row head and row tail is curved
It folds to the back side of the battery module and avoids short circuit to be connected to the busbar and be separated by the EPE insulation strips.
7. preventing hot spot imbrication component according to claim 6, which is characterized in that the positive wire and cathode of the battery strings
Lead is by the way that with after the welding of the busbar of the integrated framework, electrically parallel connection positive wire, negative wire are electric for positive wire
Property parallel connection negative wire；One battery module draws positive wire from the circuit after parallel connection positioned at the battery strings of the first ranks head
End, another battery module draws negative wire end from the circuit after parallel connection positioned at the battery strings of last ranks head, described in two
Battery module, which is located in the series circuit of row tail, draws middle leads end.
8. preventing hot spot imbrication component according to claim 7, which is characterized in that the integrated framework is H-type design structure,
The length of integrated framework two sides section is matched with the longitudinal length of the preventing hot spot imbrication component, in the integrated framework
Between segment length be matched with the lateral length of the preventing hot spot imbrication component.
9. preventing hot spot imbrication component according to claim 1, which is characterized in that draw described in three of the intelligent wiring box
Terminal is divided into two side stems and a middle leads column, connects a side stem and institute simultaneously per the diode
Middle leads column is stated, the positive wire end and the negative wire end are separately connected two side stems, in described
Between lead end connect the middle leads column.
10. a kind of production method of preventing hot spot imbrication component, which is characterized in that carried out by following steps：Cell piece scribing is cut
Piece battery carries out lamination and forms battery strings, welding strip soaking processing, tempered glass-EVA-battery module-integrated framework-EVA-
Backboard, intermediate survey, lamination, burr removing, installation aluminum alloy frame, installation monomer intelligent wiring box, appearance cleaning, component are surveyed
Examination, voltage-withstand test, appearance test.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711250660.5A CN108809252A (en) | 2017-12-01 | 2017-12-01 | A kind of preventing hot spot imbrication component and its integrated framework and production method |
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| CN201711250660.5A CN108809252A (en) | 2017-12-01 | 2017-12-01 | A kind of preventing hot spot imbrication component and its integrated framework and production method |
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