CN109801981A

CN109801981A - Solar battery sheet L shape connector and its application

Info

Publication number: CN109801981A
Application number: CN201910067972.5A
Authority: CN
Inventors: 常振宇; 符黎明
Original assignee: Changzhou Shichuang Energy Technology Co Ltd
Current assignee: Changzhou Shichuang Energy Technology Co Ltd
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2019-05-24
Anticipated expiration: 2039-01-24
Also published as: CN109801981B

Abstract

The present invention provides a kind of solar battery sheet L shape connector, including L shape conductive base, which includes extending in the same direction: the first side for reclining with cell piece side, and the second side for reclining with cell piece front or the back side；First while with second integrally connected and structure it is at L-shaped；Insulating cement is covered on the medial surface on first side；Scolding tin or conducting resinl are covered on the medial surface on second side.The present invention also provides the applications of L shape connector.L shape connector of the present invention has specially designed stereochemical structure, and the front electrode of cell piece, rear electrode can be made to extend to cell piece side, concatenates convenient for cell piece, and be easily achieved the solid matter of cell piece.

Description

Solar battery sheet L shape connector and its application

Technical field

The present invention relates to solar battery sheet L shape connectors and its application.

Background technique

Solar cell module (being also solar panel, photovoltaic module) is the core in solar power system Point.Solar cell module refers to outer enclosure and internal connection, the minimum inseparable of direct current electricity output can be provided separately The solar battery group cut, which attaches together, sets, and is mainly made of solar battery sheet, tempered glass, EVA, backboard and frame etc..

The production method of solar cell module mainly comprises the steps that cell piece concatenates, component stack, component layer Pressure, frames up.

Wherein, cell piece concatenation is mainly: the multiple cell pieces of the concatenation that successively tiles along a certain orientation, by multiple electricity Pond piece is connected into battery strings；The back side (rear electrode) of latter cell piece passes through the front of conducting connecting part and previous cell piece (front electrode) series connection；Alternatively, the front (front electrode) of latter cell piece passes through the back of conducting connecting part and previous cell piece Face (rear electrode) series connection；Conducting connecting part is generally welding wire or welding.

Component stack is mainly: stacking gradually laying tempered glass, EVA, battery strings, EVA, backboard.

Component lamination is mainly: by hot pressing, bonding each layer assembly of stacking under certain temperature, pressure condition and melts It is combined, forms an entirety.

As described above, two tiling cell pieces adjacent in battery strings need to concatenate by conducting connecting part, and conduction is even Fitting needs are connect with the front (front electrode) of one of cell piece, therefore to block the cell piece positive for conducting connecting part The positive sunlight of cell piece (is blocked) in light area, influences the efficiency of cell piece and component.

Moreover, the both ends of each conducting connecting part will be respectively and fixedly connected with (as welded with the counter electrode of two neighboring cell piece Connect), this considerably increases the working hour of battery strings concatenation and costs.

In addition, being connected using conducting connecting part, two neighboring tiling cell piece needs to be arranged a fixed spacing, so that cell piece Tiling is unable to solid matter, wastes component area, influences the efficiency of component.

In addition, multiple cell pieces are first generally concatenated into battery strings at present, then the battery strings concatenated are transferred to component Lamination station is laid.In battery strings transfer process, cell piece influences vulnerable to external force and increases crack probability, cell piece crack It will affect the performance of solar cell module.Moreover, conducting connecting part can bear certain drawing in battery strings transfer process Power, (junction of conducting connecting part and cell piece) can also bear certain pulling force at concatenation, if the tension of conducting connecting part Intensity is inadequate, and conducting connecting part may tear or be broken in battery strings transfer process, if tensile strength is inadequate at concatenation, Conducting connecting part and cell piece (on electrode) may also will become that virtual connection is even detached from or even electrode can be also damaged, these feelings Condition can all seriously affect the performance of battery strings.In order to guarantee that conducting connecting part, concatenation are in battery strings transfer process and are not damaged, Just need to improve conducting connecting part, the tensile strength at concatenation, this provides for improved the performances to conducting connecting part, electrode slurry to want It asks, will increase the cost of conducting connecting part and electrode slurry.

Summary of the invention

An object of the present invention is to provide a kind of solar battery sheet L shape connector, which can make The front electrode of cell piece, rear electrode extend to cell piece side, concatenate convenient for cell piece, and be easily achieved the close of cell piece Row.

One of to achieve the above object, the present invention provides a kind of solar battery sheet L shape connector, including L shape conduction Substrate, which includes extending in the same direction: the first side for reclining with cell piece side, and is used for and battery The second side that piece front (or front electrode) or the back side (or rear electrode) reclines；First integrally connected and is constituted while with second L shape；

Insulating cement is covered on the medial surface on first side；

Scolding tin or conducting resinl are covered on the medial surface on second side.

Preferably, the insulating cement be acrylate pressure sensitive adhesive, epoxy glue, silica gel, acryl resin, hot melt adhesive, silicone resin, Polyurethane, phenolic resin, polyamide, polyimide resin or polycarbonate.

L shape connector of the present invention has specially designed stereochemical structure, and the front electrode of cell piece, rear electrode can be made to prolong Cell piece side is extended to, is concatenated convenient for cell piece, and be easily achieved the solid matter of cell piece, the application of L shape connector is done below It illustrates.

The second object of the present invention is to provide the solar battery sheets that the first applies L shape connector, on the cell piece It is additionally provided with a pair of L-shaped connector, the front electrode of cell piece, rear electrode are extended respectively to cell piece to L shape connector by this The side that is disposed opposite to each other of a pair, with the cell piece come tile concatenation preparation battery strings when, it may not be necessary to using it is additional it is conductive even Fitting (such as welding wire, welding, conductive tape) series connection, the first L shape connector, the 2nd L shape connector of two neighboring cell piece The complex steps concatenated using additional conductive connector can be saved, battery strings are substantially reduced by the conductive adhesive of outer painting The working hour of concatenation and cost；And two adjacent cell pieces can make two adjacent cell pieces by the conductive adhesive of outer painting Against solid matter, utilizes component area more fully, component efficiency can be improved.

To achieve the above object two, the present invention provides the first solar battery sheet for applying L shape connector, the battery Piece includes: front, the back side, and a pair of side being disposed opposite to each other；A pair of L-shaped connector is additionally provided on the cell piece, this is to L shape Connector is above-mentioned solar battery sheet L shape connector；

Above-mentioned a pair of side includes first side and second side；

Above-mentioned a pair of L-shaped connector includes the first L shape connector and the 2nd L shape connector；

The medial surface on the first side reclines with cell piece first side on the first L shape connector, and the medial surface on first side It is affixed by the insulating cement and cell piece first side of its own covering；

The medial surface on the second side reclines with cell piece front electrode on the first L shape connector, and the medial surface on second side By the conducting resinl of its own covering and cell piece front electrode is affixed or the medial surface on second side passes through its own covering Scolding tin weld together with cell piece front electrode；

The medial surface on the first side reclines with cell piece second side on the 2nd L shape connector, and the medial surface on first side It is affixed by the insulating cement and cell piece second side of its own covering；

The medial surface on the second side reclines with cell piece rear electrode on the 2nd L shape connector, and the medial surface on second side By the conducting resinl of its own covering and cell piece rear electrode is affixed or the medial surface on second side passes through its own covering Scolding tin weld together with cell piece rear electrode.

The first applies the solar battery sheet of L shape connector to the present invention, is configured with a pair of L-shaped connector: the first L shape Connector and the 2nd L shape connector；

Second side of the first L shape connector is electrically connected with cell piece front electrode, the first side of the first L shape connector and cell piece First side reclines, and (insulating cement on first side can prevent the first L shape connector and cell piece first side, the cell piece back side Short circuit), and the first of the first L shape connector while, second while integrally connected and conduction, it is seen then that the first L shape connector can be by battery Piece front electrode extends to the first side of cell piece, i.e. lateral surface Yu cell piece the front electricity on the first the first side of L shape connector Pole electrical connection；

Second side of the 2nd L shape connector is electrically connected with cell piece rear electrode, the first side of the 2nd L shape connector and cell piece Second side reclines, and (insulating cement on first side can prevent the 2nd L shape connector and cell piece second side, cell piece front Short circuit), and the first of the 2nd L shape connector while, second while integrally connected and conduction, it is seen then that the 2nd L shape connector can be by battery Piece rear electrode extends to the second side of cell piece, the i.e. lateral surface on the 2nd the first side of L shape connector and cell piece back side electricity Pole electrical connection.

Based on above-mentioned specially designed structure: lateral surface and cell piece the front electrode electricity on the first the first side of L shape connector It connects (i.e. cell piece front electrode is extended to cell piece first side by the first L shape connector), the 2nd the first side of L shape connector Lateral surface be electrically connected that (i.e. cell piece rear electrode is extended to cell piece by the 2nd L shape connector with cell piece rear electrode Two side faces)；When using the present invention, the first concatenation that tiles using the solar battery sheet of L shape connector prepares battery strings, string The mode of connecing can be different from existing cell piece.

The method of the first concatenation preparation battery strings that tile using the solar battery sheet of L shape connector using the present invention It is as follows:

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece all faces upward or downward setting, latter battery The second side of piece and the first side of previous cell piece are oppositely arranged, and the 2nd the first side of L shape connector on latter cell piece Lateral surface it is Nian Jie with the lateral surface on the first the first side of L shape connector on previous cell piece by the conducting resinl of outer painting；

Alternatively,

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece all faces upward or downward setting, latter battery The first side of piece and the second side of previous cell piece are oppositely arranged, and the first the first side of L shape connector on latter cell piece Lateral surface it is Nian Jie with the lateral surface on the 2nd the first side of L shape connector on previous cell piece by the conducting resinl of outer painting.

From the foregoing, it will be observed that the first concatenation preparation electricity that tiles using the solar battery sheet of L shape connector using the present invention When pond is gone here and there, it may not be necessary to it is connected using additional conducting connecting part (such as welding wire, welding, conductive tape), two neighboring cell piece The first L shape connector, the 2nd L shape connector can save by the conductive adhesive of outer painting using additional conductive connector The complex steps of concatenation substantially reduce working hour and the cost of battery strings concatenation；And two adjacent cell piece leading by outer painting Electric glue sticking can make two adjacent cell pieces against solid matter, utilize component area more fully, and component effect can be improved Rate.

It needs to state herein, it is above-mentioned to say that the first be used additionally using the solar battery sheet of L shape connector Conducting connecting part series connection, additional conduction cannot be used even by being not offered as the first using the solar battery sheet of L shape connector Fitting series connection, therefore additional conducting connecting part (such as welding wire, welding, conductive tape) is used to apply L shape connector to the first Solar battery sheet connect, also within protection scope of the present invention.

The third object of the present invention is to provide the solar battery sheet of second of above-mentioned L shape connector of application, the batteries On piece is additionally provided with a pair of L-shaped connector, this respectively constitutes three-dimensional front electrode, three-dimensional rear electrode to L shape connector, with the electricity When pond piece tiling series connection preparation battery strings, two adjacent cell pieces can pass through conducting connecting part (such as welding wire, welding, conducting resinl Band etc.) series connection, and conducting connecting part can be only in the gap of two neighboring cell piece, it is not necessary to the front of cell piece is extended to, Avoidable conducting connecting part blocks the positive sunlight of cell piece, and the efficiency of cell piece and component can be improved.

To achieve the above object three, the present invention provides the solar battery sheet of second of above-mentioned L shape connector of application, should Cell piece includes: front, the back side, and a pair of side being disposed opposite to each other；A pair of L-shaped connector is additionally provided on the cell piece, it should It is above-mentioned solar battery sheet L shape connector to L shape connector；

Above-mentioned a pair of side includes first side and second side；

The medial surface on the second side reclines with cell piece front on the first L shape connector, and the medial surface on second side passes through Conducting resinl of its own covering and cell piece front is affixed or the medial surface on second side is covered by its own scolding tin and Cell piece front welds together；Using the second side on the first L shape connector as the front electrode of cell piece；

The medial surface on the second side reclines with the cell piece back side on the 2nd L shape connector, and the medial surface on second side passes through Conducting resinl of its own covering and the cell piece back side is affixed or the medial surface on second side is covered by its own scolding tin and The cell piece back side welds together；Using the second side on the 2nd L shape connector as the rear electrode of cell piece.

The solar battery sheet of second of application L shape connector of the present invention, has specially designed stereo electrod structure:

First L shape connector may make up three-dimensional front electrode: the second side on the first L shape connector is the front electricity of cell piece Pole, and the first of the first L shape connector while, second while integrally connected and conduction, and the first side of the first L shape connector and battery Piece first side reclines, it is seen then that front electrode can be extended to the first side of cell piece, i.e. the first L shape by the first L shape connector Connector constitutes three-dimensional front electrode；

Insulating cement on first the first side of L shape connector can be by the first L shape connector and cell piece first side, the cell piece back side Isolation, prevent the first L shape connector and cell piece first side, the short circuit of the cell piece back side (that is, prevent three-dimensional front electrode with Cell piece first side, the short circuit of the cell piece back side)；

2nd L shape connector may make up three-dimensional rear electrode: the second side on the 2nd L shape connector is the back side electricity of cell piece Pole, and the first of the 2nd L shape connector while, second while integrally connected and conduction, and the first side of the 2nd L shape connector and battery Piece second side reclines, it is seen then that rear electrode can be extended to the second side of cell piece, i.e. the 2nd L shape by the 2nd L shape connector Connector constitutes three-dimensional rear electrode；

Insulating cement on 2nd the first side of L shape connector can be by the 2nd L shape connector and cell piece second side, cell piece front Isolation, prevent the 2nd L shape connector and cell piece second side, the short circuit of cell piece front (that is, prevent three-dimensional rear electrode with Cell piece second side, the short circuit of cell piece front).

Based on above-mentioned specially designed stereo electrod structure, using the solar energy of second of application L shape connector of the present invention When cell piece prepares battery strings come the concatenation that tiles, the link position of conducting connecting part (such as welding wire, welding, conductive tape) can have Not in existing cell piece.

The method for the concatenation preparation battery strings that tiled using the solar battery sheet of second of application L shape connector of the present invention It is as follows:

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece all faces upward or downward setting, latter battery The second side of piece and the first side of previous cell piece are oppositely arranged, and the 2nd the first side of L shape connector on latter cell piece Lateral surface connected with the lateral surface on the first the first side of L shape connector on previous cell piece by conducting connecting part；

Alternatively,

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece all faces upward or downward setting, latter battery The first side of piece and the second side of previous cell piece are oppositely arranged, and the first the first side of L shape connector on latter cell piece Lateral surface connected with the lateral surface on the 2nd the first side of L shape connector on previous cell piece by conducting connecting part.

Preferably, the conducting connecting part is welding wire, welding, conductive tape, the connector coated with conducting resinl or coating There is the connector of scolding tin.

From the foregoing, it will be observed that the concatenation preparation electricity that tiled using the solar battery sheet of second of application L shape connector of the present invention When pond is gone here and there, conducting connecting part (such as welding wire, welding, conductive tape) is only needed and the lateral surface on the first the first side of L shape connector, the The lateral surface on two the first sides of L shape connector connects, and conducting connecting part can be only in the gap of two neighboring cell piece, it is not necessary to prolong The front of cell piece is extended to, avoidable conducting connecting part blocks the positive sunlight of cell piece, the effect of cell piece and component can be improved Rate.

It needs to state herein, above-mentioned sayed conducting connecting part needs not necessarily extend into the front of cell piece, is not offered as conductive connect Fitting cannot extend to cell piece front and connect, therefore conducting connecting part is extended to cell piece front and is connected, and also exist Within protection scope of the present invention.

The fourth object of the present invention is to provide the third solar battery sheet for applying above-mentioned L shape connector, the battery On piece is additionally provided with a pair of L-shaped connector, this respectively constitutes three-dimensional front electrode, three-dimensional rear electrode, and first to L shape connector The first of L shape connector while with the 2nd L shape connector first while be symmetrical arranged, with the cell piece tile series connection preparation battery strings When, two adjacent cell pieces can symmetrically splice, and by the affixed series connection of the conducting resinl of outer painting, without using additional conduction Connector (such as welding wire, welding, conductive tape) series connection, can save the complex steps concatenated using additional conductive connector, greatly The big working hour for reducing battery strings concatenation and cost；And the conducting resinl applied outside can be only in the gap of two neighboring cell piece, no It must be applied to cell piece front, the conducting resinl that can avoid applying outside blocks the positive sunlight of cell piece, cell piece and component can be improved Efficiency；And two adjacent cell pieces symmetrically splice can form solid matter, so that component area is fully used, group also can be improved Part efficiency.

To achieve the above object four, the present invention provides the third solar battery sheet for applying above-mentioned L shape connector, should Cell piece includes: front, the back side, and a pair of side being disposed opposite to each other；A pair of L-shaped connector is additionally provided on the cell piece, it should It is above-mentioned solar battery sheet L shape connector to L shape connector；

Above-mentioned a pair of side includes first side and second side；

The medial surface on the second side reclines with the cell piece back side on the 2nd L shape connector, and the medial surface on second side passes through Conducting resinl of its own covering and the cell piece back side is affixed or the medial surface on second side is covered by its own scolding tin and The cell piece back side welds together；Using the second side on the 2nd L shape connector as the rear electrode of cell piece；

Above-mentioned a pair of side is parallel to each other and is symmetrical arranged；First side of the first L shape connector and the 2nd L shape connector First side is symmetrical arranged.

Preferably, the cell piece generally rectangle；Above-mentioned a pair of side is the side at cell piece length direction both ends； Alternatively, above-mentioned a pair of side is the side at cell piece width direction both ends.

Preferably, the first side of the first side covering cell piece of the first L shape connector；The 2nd L shape connection The second side of the first side covering cell piece of part.

Preferably, the first side of the first L shape connector is equipped with several first area of absence, the 2nd L shape connector First side is equipped with several second area of absence；Second area of absence and the first area of absence correspond, and the second area of absence It is symmetrical arranged with corresponding first area of absence.

The third applies the solar battery sheet of L shape connector to the present invention, has specially designed stereo electrod structure:

The third applies the solar battery sheet of L shape connector to the present invention, right on the basis of above-mentioned stereo electrod structure Cell piece has carried out advanced optimizing design, so that cell piece first side, second side is parallel to each other and is symmetrical arranged, and makes The first of one L shape connector while with the 2nd L shape connector first while be symmetrical arranged, obtain the cell piece that can symmetrically splice.

It, can when using the present invention, the third concatenation that tiles using the solar battery sheet of L shape connector prepares battery strings Additional conducting connecting part (such as welding wire, welding, conductive tape) need not be used to connect, further be different from existing cell piece.

The method of the third concatenation preparation battery strings that tile using the solar battery sheet of L shape connector using the present invention It is as follows:

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece all faces upward or downward setting, latter battery The second side of piece and the first side of previous cell piece are oppositely arranged, the first side of the 2nd L shape connector on latter cell piece Symmetrically splice with the first side of the first L shape connector on previous cell piece, and the 2nd the first side of L shape connector on latter cell piece Lateral surface it is affixed by the conducting resinl of outer painting and the lateral surface on the first the first side of L shape connector on previous cell piece；

Alternatively,

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece all faces upward or downward setting, latter battery The first side of piece and the second side of previous cell piece are oppositely arranged, the first side of the first L shape connector on latter cell piece Symmetrically splice with the first side of the 2nd L shape connector on previous cell piece, and the first the first side of L shape connector on latter cell piece Lateral surface it is affixed by the conducting resinl of outer painting and the lateral surface on the 2nd the first side of L shape connector on previous cell piece.

From the foregoing, it will be observed that the third concatenation preparation electricity that tiles using the solar battery sheet of L shape connector using the present invention When pond is gone here and there, it may not be necessary to it is connected using additional conducting connecting part (such as welding wire, welding, conductive tape), two neighboring cell piece The first L shape connector, the 2nd L shape connector (i.e. three-dimensional front electrode, three-dimensional rear electrode) can symmetrically splice, and by outer The affixed series connection of the conducting resinl of painting can save the complex steps concatenated using additional conductive connector, substantially reduce battery strings concatenation Working hour and cost；And the conducting resinl applied outside can be only in the gap of two neighboring cell piece, the conducting resinl of such as outer painting only needs Coat the first L shape connector first while lateral surface and/or the 2nd L shape connector the first while lateral surface, it is not necessary to be applied to electricity Pond piece front, the conducting resinl that can avoid applying outside block the positive sunlight of cell piece, the efficiency of cell piece and component can be improved；And phase Two adjacent cell pieces, which symmetrically splice, can form solid matter, so that component area is fully used, component efficiency also can be improved.

It needs to state herein, it is above-mentioned to say that the third be used additionally using the solar battery sheet of L shape connector Conducting connecting part series connection, additional conduction cannot be used even by being not offered as the third using the solar battery sheet of L shape connector Fitting series connection, therefore additional conducting connecting part (such as welding wire, welding, conductive tape) is used to apply L shape connector to the third Solar battery sheet connect, also within protection scope of the present invention.

The fifth object of the present invention is to provide a kind of production method of solar cell module, uses the present invention the The solar battery sheet of three kinds of application L shape connectors is come the series connection preparation battery strings that tile, and with this, the third applies L shape connector When solar battery sheet prepares battery strings come series connection of tiling, two adjacent cell pieces can symmetrically splice, and leading by outer painting The electric affixed series connection of glue can be saved and be adopted without using additional conducting connecting part (such as welding wire, welding, conductive tape) to connect The complex steps concatenated with additional conductive connector substantially reduce working hour and the cost of battery strings concatenation；And the conducting resinl applied outside It can be only in the gap of two neighboring cell piece, it is not necessary to be applied to cell piece front, the conducting resinl that can avoid applying outside blocks electricity The positive sunlight of pond piece, can be improved the efficiency of cell piece and component；And two adjacent cell pieces symmetrically splice can form solid matter, So that component area is fully used, component efficiency also can be improved；And the tiling of cell piece is directly carried out in component stack station Concatenation eliminates battery strings are transferred to component stack station by cell piece in the prior art again transfer step after concatenating, avoids The problem of cell piece crack may be produced in the transfer step, also reduces the requirement for externally applying conducting resinl adhesion strength；And Before component lamination step, the conducting resinl not applied externally carries out thermosetting, but the external thermosetting for applying conducting resinl is placed on component Implement in lamination step, heated by the hot pressing of component lamination step, realizes the layer of the solidification and component that apply conducting resinl outside together Pressure carries out the step of applying conducting resinl thermosetting outside, production efficiency can be improved, reduces production cost before can saving component lamination.

To achieve the above object five, the present invention provides a kind of production method of solar cell module, including component is folded Layer and component lamination；The component stack includes battery strings laying step；

By the present invention, the third applies the solar battery sheet tiling of L shape connector to be spliced to battery strings, and in above-mentioned battery Cell piece tiling splicing is carried out in string laying step；Cell piece tiling splicing includes the following steps:

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece all faces upward or downward setting, latter battery The second side of piece and the first side of previous cell piece are oppositely arranged, the first side of the 2nd L shape connector on latter cell piece Symmetrically splice with the first side of the first L shape connector on previous cell piece, and the 2nd the first side of L shape connector on latter cell piece Lateral surface it is Nian Jie with the lateral surface on the first the first side of L shape connector on previous cell piece by the conducting resinl of outer painting；

Alternatively,

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece all faces upward or downward setting, latter battery The first side of piece and the second side of previous cell piece are oppositely arranged, the first side of the first L shape connector on latter cell piece Symmetrically splice with the first side of the 2nd L shape connector on previous cell piece, and the first the first side of L shape connector on latter cell piece Lateral surface it is Nian Jie with the lateral surface on the 2nd the first side of L shape connector on previous cell piece by the conducting resinl of outer painting；

In said modules lamination step, each layer assembly of stacking is made by an entirety by hot pressing, and above-mentioned outer painting is led Electric glue is solidified by the heating of above-mentioned hot pressing.

From the foregoing, it will be observed that the present invention prepares solar battery using the solar battery sheet of L shape connector using the third Component, when cell piece concatenates, two adjacent cell pieces can symmetrically splice, and by the affixed series connection of the conducting resinl of outer painting, can not Additional conducting connecting part (such as welding wire, welding, conductive tape) must be used to connect, can saved using additional conductive connector string The complex steps connect substantially reduce working hour and the cost of battery strings concatenation；And the conducting resinl applied outside can only be set to two neighboring electricity In the gap of pond piece, it is not necessary to be applied to cell piece front, the conducting resinl that can avoid applying outside blocks the positive sunlight of cell piece, can mention The efficiency of high cell piece and component；And two adjacent cell pieces symmetrically splice can form solid matter, obtain component area sufficiently It utilizes, component efficiency also can be improved.

And the present invention directly carries out the tiling concatenation of cell piece in component stack station, eliminates cell piece in the prior art Battery strings are transferred to the transfer step of component stack station again, cell piece may be produced by avoiding in the transfer step after concatenation The problem of crack, also reduces the requirement for externally applying conducting resinl adhesion strength；And before component lamination step, do not apply externally Conducting resinl carries out thermosetting, but the external thermosetting for applying conducting resinl is placed in component lamination step and is implemented, and is walked by component lamination Rapid hot pressing heating is realized the lamination of the solidification and component that apply conducting resinl outside together, is applied outside before can saving component lamination Production efficiency can be improved in the step of conducting resinl thermosetting, reduces production cost.

Detailed description of the invention

Fig. 1 is the schematic diagram for the L shape connector that embodiment 1 provides；

Fig. 2 is the schematic diagram for the cell piece that embodiment 2 provides；

Fig. 3 is the schematic diagram that cell piece concatenates in embodiment 3；

Fig. 4 is the schematic diagram that cell piece concatenates in embodiment 4；

Fig. 5 is the schematic diagram for the cell piece that embodiment 5 provides；

Fig. 6 is the schematic diagram that cell piece concatenates in embodiment 10；

Fig. 7 is the schematic diagram that cell piece concatenates in embodiment 11；

Fig. 8 is the schematic diagram that cell piece concatenates in embodiment 12；

Fig. 9 is the schematic diagram that cell piece concatenates in embodiment 13；

Figure 10 is the schematic diagram that cell piece concatenates in embodiment 14；

Figure 11 is the schematic diagram that cell piece concatenates in embodiment 15.

Specific embodiment

With reference to the accompanying drawings and examples, further description of the specific embodiments of the present invention.Following embodiment is only For clearly illustrating technical solution of the present invention, and not intended to limit the protection scope of the present invention.

Embodiment 1

As shown in Figure 1, the present invention provides a kind of solar battery sheet L shape connector, including L shape conductive base 100, the L shape Conductive base 100 includes extending in the same direction: the first side 101 for reclining with cell piece side, and is used for cell piece just The second side 102 that face (or front electrode) or the back side (or rear electrode) recline；First at 101 and second 102 integrally connecteds And structure is at L-shaped；

Insulating cement 200 is covered on the medial surface on first side 101；

Scolding tin 300 or conducting resinl 300 are covered on the medial surface on second side 102.

Preferably, the insulating cement 200 is acrylate pressure sensitive adhesive, epoxy glue, silica gel, acryl resin, hot melt adhesive, silicon tree Rouge, polyurethane, phenolic resin, polyamide, polyimide resin or polycarbonate.

L shape connector of the present invention has specially designed stereochemical structure, and the front electrode of cell piece, rear electrode can be made to prolong Cell piece side is extended to, is concatenated convenient for cell piece, and be easily achieved the solid matter of cell piece, subsequent embodiment is to L shape connector Using illustrating.

Embodiment 2

As shown in Fig. 2, the present invention provides a kind of solar battery sheet, which includes: that front, the back side, and a pair are opposite The side of setting；A pair of L-shaped connector is additionally provided on the cell piece, this is that the L shape that embodiment 1 provides connects to L shape connector Part；

Above-mentioned a pair of side includes first side and second side；

Above-mentioned a pair of L-shaped connector includes the first L shape connector 40 and the 2nd L shape connector 50；

The medial surface on the first side 41 reclines with cell piece first side on the first L shape connector 40, and first side 41 The insulating cement 200 and cell piece first side that medial surface is covered by its own are affixed；

The medial surface on the second side 42 and cell piece front electrode (front electrode is not shown in the figure) on the first L shape connector 40 It reclines, and the conducting resinl 300 that is covered by its own of the medial surface on second side 42 and cell piece front electrode are affixed, or should The scolding tin 300 that the medial surface on the second side 42 is covered by its own welds together with cell piece front electrode；

The medial surface on the first side 51 reclines with cell piece second side on the 2nd L shape connector 50, and first side 51 The insulating cement 200 and cell piece second side that medial surface is covered by its own are affixed；

The medial surface on the second side 52 and cell piece rear electrode (rear electrode is not shown in the figure) on the 2nd L shape connector 50 It reclines, and the conducting resinl 300 that is covered by its own of the medial surface on second side 52 and cell piece rear electrode are affixed, or should The scolding tin 300 that the medial surface on the second side 52 is covered by its own welds together with cell piece rear electrode.

The solar battery sheet that embodiment 2 provides, is configured with a pair of L-shaped connector: the first L shape connector 40 and the 2nd L Shape connector 50；

Second side 42 of the first L shape connector 40 is electrically connected with cell piece front electrode, the first side 41 of the first L shape connector 40 Reclining with cell piece first side, (insulating cement 200 on first side 41 can prevent the first L shape connector 40 and cell piece first Side, the short circuit of the cell piece back side), and the first of the first L shape connector 40 42 integrally connecteds and conduction at 41, second, it is seen then that Cell piece front electrode can be extended to the first side of cell piece, i.e. the first L shape connector 40 first by the first L shape connector 40 The lateral surface on side 41 is electrically connected with cell piece front electrode；

Second side 52 of the 2nd L shape connector 50 is electrically connected with cell piece rear electrode, the first side 51 of the 2nd L shape connector 50 Reclining with cell piece second side, (insulating cement 200 on first side 51 can prevent the 2nd L shape connector 50 and cell piece second Side, the short circuit of cell piece front), and the first of the 2nd L shape connector 50 52 integrally connecteds and conduction at 51, second, it is seen then that Cell piece rear electrode can be extended to the second side of cell piece, i.e. the 2nd L shape connector 50 first by the 2nd L shape connector 50 The lateral surface on side 51 is electrically connected with cell piece rear electrode.

Based on above-mentioned specially designed structure: lateral surface and cell piece the front electricity on 40 first side 41 of the first L shape connector Pole is electrically connected (i.e. cell piece front electrode is extended to cell piece first side by the first L shape connector 40), the 2nd L shape connector The lateral surface on 50 first sides 51 is electrically connected that (i.e. the 2nd L shape connector 50 prolongs cell piece rear electrode with cell piece rear electrode Extend to cell piece second side)；When the concatenation that tiled using the solar battery sheet that embodiment 2 provides preparation battery strings, concatenation Mode can be different from existing cell piece, detailed in Example 3 and embodiment 4.

Embodiment 3

As shown in figure 3, conducting connecting part (such as welding wire, welding, conductive tape) is not used, using only the conducting resinl 70 of outer painting, And the method for the concatenation preparation battery strings that tiled using the cell piece that embodiment 2 provides is as follows:

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece is all arranged upward, latter cell piece 62 Second side and the first side of previous cell piece 61 are oppositely arranged, and the 2nd L shape connector 50 first on latter cell piece 62 While lateral surface by the first L shape connector 40 firstth on the conducting resinl 70 of outer painting and previous cell piece 61 while lateral surface it is viscous It connects.

Obviously, the front of each cell piece is all arranged downward, can also accordingly be concatenated, therefore details are not described herein.

Embodiment 4

As shown in figure 4, conducting connecting part (such as welding wire, welding, conductive tape) is not used, using only the conducting resinl 70 of outer painting, And the method for the concatenation preparation battery strings that tiled using the cell piece that embodiment 2 provides is as follows:

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece is all arranged upward, latter cell piece 62 First side and the second side of previous cell piece 61 are oppositely arranged, and the first L shape connector 40 first on latter cell piece 62 While lateral surface by the 2nd L shape connector 50 firstth on the conducting resinl 70 of outer painting and previous cell piece 61 while lateral surface it is viscous It connects.

By embodiment 3 and embodiment 4 it is found that the concatenation preparation electricity that tiled using the solar battery sheet that embodiment 2 provides When pond is gone here and there, it may not be necessary to it is connected using additional conducting connecting part (such as welding wire, welding, conductive tape), two neighboring cell piece The first L shape connector 40, the 2nd L shape connector 50 can be bonded by the conducting resinl 70 of outer painting, can save using additional conductive The complex steps of connector concatenation substantially reduce working hour and the cost of battery strings concatenation；And two adjacent cell pieces are outside The conducting resinl 70 of painting is bonded, and two adjacent cell pieces can be made against solid matter, component area is utilized more fully, can mention High component efficiency.

It needs to state herein, the solar battery sheet that above-mentioned sayed embodiment 2 provides need not use additional conductive connection Part series connection, the solar battery sheet for being not offered as the offer of embodiment 2 cannot use additional conducting connecting part to connect, therefore use volume The solar battery sheet that outer conducting connecting part (such as welding wire, welding, conductive tape) provides embodiment 2 is connected, Within protection scope of the present invention.

Embodiment 5

As shown in figure 5, the cell piece includes: front, the back side, and a pair of of phase the present invention also provides a kind of solar battery sheet Carry on the back the side of setting；A pair of L-shaped connector is additionally provided on the cell piece, this is to the L shape that L shape connector is that embodiment 1 provides Connector；

Above-mentioned a pair of side includes first side and second side；

The medial surface on the second side 42 reclines with cell piece front on the first L shape connector 40, and the inside on second side 42 The conducting resinl 300 that face is covered by its own and cell piece front be affixed or the medial surface on second side 42 passes through its own The scolding tin 300 of covering welds together with cell piece front；With the second side 42 on the first L shape connector 40 for cell piece just Face electrode；

The medial surface on the second side 52 reclines with the cell piece back side on the 2nd L shape connector 50, and the inside on second side 52 The conducting resinl 300 that face is covered by its own and the cell piece back side is affixed or the medial surface on second side 52 passes through its own The scolding tin 300 of covering welds together with the cell piece back side；It is the back of cell piece with the second side 52 on the 2nd L shape connector 50 Face electrode.

Embodiment 6

The present invention also provides a kind of solar battery sheets, and on the basis of embodiment 5, difference is:

Above-mentioned a pair of side is parallel to each other and is symmetrical arranged；First side 41 of the first L shape connector 40 is connect with the 2nd L shape First side 51 of part 50 is symmetrical arranged.

Embodiment 7

The present invention also provides a kind of solar battery sheets, and on the basis of embodiment 6, difference is:

The cell piece generally rectangle；Above-mentioned a pair of side is the side at cell piece length direction both ends；Alternatively, above-mentioned one It is the side at cell piece width direction both ends to side.

Embodiment 8

The present invention also provides a kind of solar battery sheets, and on the basis of embodiment 6 or embodiment 7, difference is:

The first side of the first side 41 covering cell piece of the first L shape connector 40；The of the 2nd L shape connector 50 The second side of 51 covering cell pieces on one side.

Embodiment 9

First side 41 of the first L shape connector 40 is equipped with several first area of absence, the first side of the 2nd L shape connector 50 51 are equipped with several second area of absence；Second area of absence and the first area of absence correspond, and the second area of absence with it is right The first area of absence answered is symmetrical arranged.

The solar battery sheet that any embodiment provides in embodiment 5 to 9 has specially designed stereo electrod structure:

First L shape connector 40 may make up three-dimensional front electrode: the second side 42 on the first L shape connector 40 be cell piece just Face electrode, and the first of the first L shape connector 40 42 integrally connecteds and conduction at 41, second, and the first L shape connector 40 First side 41 reclines with cell piece first side, it is seen then that front electrode can be extended to the of cell piece by the first L shape connector 40 One side, i.e. the first L shape connector 40 constitute three-dimensional front electrode；

Insulating cement 200 on first L shape connector, 40 first side 41 can by the first L shape connector 40 and cell piece first side, Cell piece back side isolated prevents the first L shape connector 40 and cell piece first side, the short circuit of the cell piece back side from (that is, preventing from standing Body front electrode and cell piece first side, the short circuit of the cell piece back side)；

2nd L shape connector 50 may make up three-dimensional rear electrode: the second side 52 on the 2nd L shape connector 50 is the back of cell piece Face electrode, and the first of the 2nd L shape connector 50 52 integrally connecteds and conduction at 51, second, and the 2nd L shape connector 50 First side 51 reclines with cell piece second side, it is seen then that rear electrode can be extended to the of cell piece by the 2nd L shape connector 50 Two side faces, i.e. the 2nd L shape connector 50 constitute three-dimensional rear electrode；

Insulating cement 200 on 2nd L shape connector, 50 first side 51 can by the 2nd L shape connector 50 and cell piece second side, The isolation of cell piece front prevents the 2nd L shape connector 50 and cell piece second side, cell piece front are short-circuit from (that is, preventing from standing Body rear electrode and cell piece second side, the short circuit of cell piece front).

Based on above-mentioned specially designed stereo electrod structure, the solar energy provided using any embodiment in embodiment 5 to 9 Cell piece come tile concatenation preparation battery strings when, conducting connecting part 80(such as welding wire, welding, conductive tape etc.) link position can It is different from existing cell piece, detailed in Example 10 and embodiment 11.

Embodiment 10

As shown in fig. 6, being not extend to the front of cell piece using conducting connecting part 80(conducting connecting part 80), and use embodiment The cell piece that any embodiment provides in 5 to 9 is as follows come the method for the concatenation preparation battery strings that tile:

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece is all arranged upward, latter cell piece 62 Second side and the first side of previous cell piece 61 are oppositely arranged, and the 2nd L shape connector 50 first on latter cell piece 62 While lateral surface connected by conducting connecting part 80 with lateral surface when the first L shape connector 40 firstth on previous cell piece 61.

Preferably, the conducting connecting part 80 is welding wire, welding, conductive tape, the connector coated with conducting resinl or painting It is covered with the connector of scolding tin.

Embodiment 11

As shown in fig. 7, being not extend to the front of cell piece using conducting connecting part 80(conducting connecting part 80), and use embodiment The cell piece that any embodiment provides in 5 to 9 is as follows come the method for the concatenation preparation battery strings that tile:

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece is all arranged upward, latter cell piece 62 First side and the second side of previous cell piece 61 are oppositely arranged, and the first L shape connector 40 first on latter cell piece 62 While lateral surface connected by conducting connecting part 80 with lateral surface when the 2nd L shape connector 50 firstth on previous cell piece 61.

By embodiment 10 and embodiment 11 it is found that being made using what any embodiment in embodiment 5 to 9 provided come the concatenation that tiles When standby battery strings, conducting connecting part 80(such as welding wire, welding, conductive tape etc.) it only needs and 40 first side of the first L shape connector The lateral surface connection of lateral surface, 50 first side of the 2nd L shape connector, conducting connecting part 80 can be only set on two neighboring cell pieces In gap, it is not necessary to extend to the front of cell piece, can avoid conducting connecting part 80 and block the positive sunlight of cell piece, electricity can be improved The efficiency of pond piece and component.

It needs to state herein, above-mentioned sayed conducting connecting part 80 needs not necessarily extend into the front of cell piece, is not offered as conduction Connector 80 cannot extend to cell piece front and connect, therefore conducting connecting part 80 is extended to cell piece front and is gone here and there Connection, also within protection scope of the present invention.

In addition, the solar battery sheet that any embodiment provides in embodiment 6 to 9, in the base of above-mentioned stereo electrod structure On plinth, cell piece is carried out to advanced optimize design, so that cell piece first side, second side is parallel to each other and symmetrically sets Set, and make the first of the first L shape connector 40 while with the 2nd L shape connector 50 first while be symmetrical arranged, obtain symmetrically spelling The cell piece connect.

It, can when the concatenation that tiled using the solar battery sheet that any embodiment in embodiment 6 to 9 provides preparation battery strings Additional conducting connecting part (such as welding wire, welding, conductive tape) need not be used to connect, further be different from existing cell piece, Detailed in Example 12 and embodiment 13.

Embodiment 12

As shown in figure 8, conducting connecting part (such as welding wire, welding, conductive tape) is not used, using only the conducting resinl 70 of outer painting, And the method for the concatenation preparation battery strings that tiled using the cell piece that any embodiment in embodiment 6 to 9 provides is as follows:

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece all faces upward or downward setting, latter battery The second side of piece 62 and the first side of previous cell piece 61 are oppositely arranged, the 2nd L shape connector 50 on latter cell piece 62 First while on previous cell piece 61 the first L shape connector 40 first while symmetrically splice, and the 2nd L on latter cell piece 62 First L shape connector 40 first on the conducting resinl 70 and previous cell piece 61 that the lateral surface on 50 first side of shape connector passes through outer painting The lateral surface on side is affixed.

Embodiment 13

As shown in figure 9, conducting connecting part (such as welding wire, welding, conductive tape) is not used, using only the conducting resinl 70 of outer painting, And the method for the concatenation preparation battery strings that tiled using the cell piece that any embodiment in embodiment 6 to 9 provides is as follows:

It successively tiles multiple cell pieces along a certain orientation, the front of each cell piece all faces upward or downward setting, latter battery The first side of piece 62 and the second side of previous cell piece 61 are oppositely arranged, the first L shape connector 40 on latter cell piece 62 First while on previous cell piece 61 the 2nd L shape connector 50 first while symmetrically splice, and the first L on latter cell piece 62 2nd L shape connector 50 first on the conducting resinl 70 and previous cell piece 61 that the lateral surface on 40 first side of shape connector passes through outer painting The lateral surface on side is affixed.

By embodiment 12 and embodiment 13 it is found that the solar battery sheet provided using any embodiment in embodiment 6 to 9 When preparing battery strings come the concatenation that tiles, it may not be necessary to be gone here and there using additional conducting connecting part (such as welding wire, welding, conductive tape) Connection, the first L shape connector 40, the 2nd L shape connector 50(of two neighboring cell piece are three-dimensional front electrode, three-dimensional back side electricity Pole) can symmetrically it splice, and by the affixed series connection of the conducting resinl of outer painting 70, the complexity concatenated using additional conductive connector can be saved Step substantially reduces working hour and the cost of battery strings concatenation；And the conducting resinl 70 applied outside can be only set on two neighboring cell piece In gap, the conducting resinl 70 of such as outer painting only needs lateral surface and/or the connection of the 2nd L shape on coating 40 first side of the first L shape connector The lateral surface on 50 first side of part, it is not necessary to be applied to cell piece front, it is positive that the conducting resinl 70 that can avoid applying outside blocks cell piece The efficiency of cell piece and component can be improved in sunlight；And two adjacent cell pieces symmetrically splice can form solid matter, make component area It is fully used, component efficiency also can be improved.

It needs to state herein, the solar battery sheet that any embodiment provides in above-mentioned sayed embodiment 6 to 9 need not use Additional conducting connecting part series connection, being not offered as the solar battery sheet that any embodiment provides in embodiment 6 to 9 cannot use Additional conducting connecting part series connection, therefore use additional conducting connecting part (such as welding wire, welding, conductive tape) to embodiment 6 It connects to the sun energy cell piece that any embodiment in 9 provides, also within protection scope of the present invention.

Embodiment 14

The present invention also provides a kind of production methods of solar cell module, mainly include the following steps:

1) component stack mainly includes the following steps:

Tempered glass (tempered glass horizontal) first is laid, then lays the first EVA layer on tempered glass, then on the first EVA layer The concatenation and laying for carrying out cell piece complete the laying of battery strings directly on the first EVA layer；

The cell piece tiling that battery strings are provided by any embodiment in embodiment 6 to 9 is spliced, and cell piece tiling splicing includes Following steps:

As shown in Figure 10, it successively tiles multiple cell pieces along a certain orientation, the front of each cell piece is all arranged downward, latter The second side of cell piece 62 and the first side of previous cell piece 61 are oppositely arranged, and the 2nd L shape connects on latter cell piece 62 The first of part 50 while on previous cell piece 61 the first L shape connector 40 first while symmetrically splice, and on latter cell piece 62 First L shape connector on the conducting resinl 70 and previous cell piece 61 that the lateral surface on 50 first side of the 2nd L shape connector passes through outer painting The lateral surface on 40 first sides is bonded；

After the completion of battery strings laying, then the second EVA layer is laid in battery strings, then lay backboard on the second EVA layer；

2) component lamination mainly includes the following steps:

The laminated module laid is put into component laminator, by hot pressing, makes each layer assembly of stacking in certain temperature, pressure Bonding is fused together under the conditions of power, forms an entirety；And the conducting resinl 70 applied outside is solidified by the heating of above-mentioned hot pressing； The temperature of hot pressing is 100~200 DEG C, and the time of hot pressing is 30~1800s；

3) it frames up, mainly includes the following steps:

To component layer casting die installation frame, the part silica gel sealing of component layer casting die and bezel contact, then in module backside Terminal box is installed.

Embodiment 15

1) component stack mainly includes the following steps:

As shown in figure 11, it successively tiles multiple cell pieces along a certain orientation, the front of each cell piece, which all faces upward or downward, to be set It sets, the first side of latter cell piece 62 and the second side of previous cell piece 61 are oppositely arranged, the first L on latter cell piece 62 The first of shape connector 40 while on previous cell piece 61 the 2nd L shape connector 50 first while symmetrically splice, and latter battery 2nd L shape on the conducting resinl 70 and previous cell piece 61 that the lateral surface on 40 first side of the first L shape connector passes through outer painting on piece 62 The lateral surface on 50 first side of connector is bonded；

2) component lamination mainly includes the following steps:

3) it frames up, mainly includes the following steps:

By embodiment 14 and embodiment 15 it is found that being prepared using the cell piece that any embodiment in embodiment 6 to 9 provides Solar cell module, when cell piece concatenates, two adjacent cell pieces can symmetrically splice, and solid by the conducting resinl of outer painting 70 Connect series connection, it may not be necessary to connect, can be saved using additional using additional conducting connecting part (such as welding wire, welding, conductive tape) The complex steps of conducting connecting part concatenation substantially reduce working hour and the cost of battery strings concatenation；And the conducting resinl 70 applied outside can be only In the gap of two neighboring cell piece, it is not necessary to be applied to cell piece front, the conducting resinl 70 that can avoid applying outside blocks battery The positive sunlight of piece, can be improved the efficiency of cell piece and component；And two adjacent cell pieces symmetrically splice can form solid matter, make Component area is fully used, and component efficiency also can be improved.

And solar cell module is prepared using the cell piece that any embodiment in embodiment 6 to 9 provides, it can be in component Lamination station carries out the tiling concatenation of cell piece, and battery strings are transferred to component again after eliminating cell piece concatenation in the prior art The transfer step of lamination station avoids the problem of may producing cell piece crack in the transfer step, also reduces external painting The requirement of conducting resinl adhesion strength；And before component lamination step, the conducting resinl 70 not applied externally carries out thermosetting, but will be right The outer thermosetting for applying conducting resinl, which is placed in component lamination step, to be implemented, and is heated by the hot pressing of component lamination step, is realized together outer The solidification of conducting resinl and the lamination of component are applied, the step of applying conducting resinl thermosetting outside is carried out before component lamination can be saved, can be improved Production efficiency reduces production cost.

The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications Also it should be regarded as protection scope of the present invention.

Claims

1. solar battery sheet L shape connector, which is characterized in that including L shape conductive base, which includes same To extension: the first side for reclining with cell piece side, and the second side for reclining with cell piece front or the back side； First while with second integrally connected and structure it is at L-shaped；

Insulating cement is covered on the medial surface on first side；

2. solar battery sheet according to claim 1 L shape connector, which is characterized in that the insulating cement is propylene Sour pressure sensitive adhesive, epoxy glue, silica gel, acryl resin, hot melt adhesive, silicone resin, polyurethane, phenolic resin, polyamide, polyamides Imide resin or polycarbonate.

3. solar battery sheet, comprising: front, the back side, and a pair of side being disposed opposite to each other；It is characterized in that, the battery On piece is additionally provided with a pair of L-shaped connector, this is that solar battery sheet of any of claims 1 or 2 L shape connects to L shape connector Fitting；

Above-mentioned a pair of side includes first side and second side；

The medial surface on the second side reclines with cell piece front on the first L shape connector, and the medial surface on second side passes through Conducting resinl of its own covering and cell piece front is affixed or the medial surface on second side is covered by its own scolding tin and Cell piece front welds together；

The medial surface on the second side reclines with the cell piece back side on the 2nd L shape connector, and the medial surface on second side passes through Conducting resinl of its own covering and the cell piece back side is affixed or the medial surface on second side is covered by its own scolding tin and The cell piece back side welds together.

4. solar battery sheet according to claim 3, which is characterized in that be with the second side on the first L shape connector The front electrode of cell piece, using the second side on the 2nd L shape connector as the rear electrode of cell piece.

5. solar battery sheet according to claim 4, which is characterized in that above-mentioned a pair of side is parallel to each other and symmetrically sets It sets；The first of the first L shape connector while with the 2nd L shape connector first while be symmetrical arranged.

6. solar battery sheet according to claim 5, which is characterized in that the cell piece generally rectangle；It is above-mentioned A pair of of side is the side at cell piece length direction both ends；Alternatively, above-mentioned a pair of side is the side at cell piece width direction both ends Face.

7. solar battery sheet according to claim 5 or 6, which is characterized in that the first side of the first L shape connector Cover the first side of cell piece；The second side of the first side covering cell piece of the 2nd L shape connector.

8. solar battery sheet according to claim 5 or 6, which is characterized in that the first side of the first L shape connector Equipped with several first area of absence, the first side of the 2nd L shape connector is equipped with several second area of absence；Second area of absence with First area of absence corresponds, and the second area of absence is symmetrical arranged with corresponding first area of absence.

9. battery strings, which is characterized in that its solar battery sheet as described in any one of claim 3 to 8 tiling bonding and At the method for the bonding that tiles is as follows:

Alternatively,

10. battery strings, which is characterized in that its solar battery sheet as described in any one of claim 4 to 8 tiling concatenation and At the method for the concatenation that tiles is as follows:

Alternatively,

11. battery strings according to claim 10, which is characterized in that the conducting connecting part is welding wire, welding, conducting resinl Band, the connector coated with conducting resinl or the connector coated with scolding tin.

12. battery strings, which is characterized in that its solar battery sheet as described in any one of claim 5 to 8 tiling splicing and At the method for splicing of tiling is as follows:

Alternatively,

13. the production method of solar cell module, including component stack and component lamination；The component stack includes battery strings Lay step；It is characterized by:

The tiling of battery strings solar battery sheet as described in any one of claim 5 to 8 is spliced, and in above-mentioned battery strings It lays in step and carries out cell piece tiling splicing；Cell piece tiling splicing includes the following steps:

Alternatively,