CN209544377U

CN209544377U - A kind of solar cell module and solar panel

Info

Publication number: CN209544377U
Application number: CN201920460144.3U
Authority: CN
Inventors: 张开华; 陈七金
Original assignee: Xiamen Jumao New Energy Co Ltd
Current assignee: Xiamen Jumao New Energy Co Ltd
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2019-10-25
Anticipated expiration: 2029-04-08

Abstract

The utility model provides a kind of solar cell module and the solar panel with the solar cell module, solar cell module includes busbar and cell piece, cell piece includes solar silicon wafers and a plurality of conductive strips that are electrically connected on the positive pole-face of the solar silicon wafers, conductive strips also extend the cell piece and form extended segment, the busbar is across between the extended segment of a plurality of conductive strips, and electrical connection is formed, the end of the extended segment of the conductive strips also protrudes from the busbar at least 1mm.Because being reserved at least length of 1mm between the end and busbar of the extended segment of conductive strips, so that the contact position of conductive strips and busbar is not sharp, and the end of the prominent at least extended segment of the length of 1mm is more soft, the solar cell module carries out after processing lamination EVA layer and backboard, even if slightly bending is pressurized, the end of the extended segment of conductive strips can be also bent together therewith, effectively prevent the risk of bursting EVA and backboard, and stability is protected.

Description

A kind of solar cell module and solar panel

Technical field

The utility model relates to field of photovoltaic power generation, and in particular to a kind of solar cell module of stable structure and have The solar panel of the solar cell module.

Background technique

The core component of solar panel (Solar panel) is solar cell module, is by that will have the sun The solar cell module of energy battery is assembled.Solar battery is partly led with the one kind for converting light into electrical characteristics Body device, the solar radiation for being radiated at its surface can be converted into direct current by it, and solar panel is photovoltaic power generation The core in most basic component and solar photovoltaic generation system in system/product.Its maximum effect be by Solar energy is converted into power storage into battery.

Currently, being beautiful purpose, the welding of conductive strips and busbar in the production technology of solar cell module It is often designed to that conductive strips are neatly welded with busbar end, even if cannot be aligned, can also be cut flat with scissors；Busbar with When conductive strips overlapping is neatly welded, the edge of overlapping hard and sharp angle easy to form, especially by shearing The structure managed, busbar and conductive strips are easy crimping, touch cut edge with hand in cutting process, have and significantly scrape hand Sense.With production and use, after discovery is packaged using this kind of solar cell module, this sharp angle is in component Handling process while being bent (during especially moving component slightly), there are puncture EVA (ethylene-vinyl acetate copolymer) layer and A possibility that backboard, makes and penetrates into crystal-silicon battery slice in aqueous vapor, influences its service life.

Utility model content

For this purpose, the utility model provides a kind of solar cell module of stable structure and has the solar cell module Solar panel, to prevent the generation of the above problem.

To achieve the above object, the technical scheme that the utility model is provided is as follows:

A kind of solar cell module, including busbar and cell piece, the cell piece include solar silicon wafers and electricity The a plurality of conductive strips being connected on the positive pole-face of the solar silicon wafers, the conductive strips also extend the cell piece and form extension Section, the busbar are across between the extended segment of a plurality of conductive strips, and form electrical connection, the end of the extended segment of the conductive strips Portion also protrudes from the busbar at least 1mm.

Further, the end of the extended segment of the conductive strips protrudes from the busbar 1mm-2mm.

Further, it is electrically connected between the busbar and the extended segment of conductive strips by welding to be formed.

Further, the cell piece further includes a plurality of grid line being laterally arranged on the positive pole-face of solar silicon wafers, more Conductive strips are in longitudinal arrangement and are electrically connected on grid line, and then form latticed bus structure.

Further, the cell piece is equipped with multiple, and multiple cell pieces are set side by side along the extending direction of conductive strips, in turn Combination forms stacks of cells, and the extended segment of the conductive strips of previous cell piece is electrically connected to the solar power silicon of the latter cell piece The extended segment in the cathode face of piece, the conductive strips of the cell piece of least significant end is electrically connected the busbar.

Further, the stacks of cells is equipped with multiple groups, and multiple groups stacks of cells is along the extension side perpendicular to conductive strips To being arranged side by side, the extended segment of the conductive strips of the cell piece of the least significant end of multiple groups stacks of cells is electrically connected same busbar.

A kind of solar panel, including at least solar cell module described above.

By technical solution provided by the utility model, have the following beneficial effects:

Because being reserved at least length of 1mm between the end and busbar of the extended segment of conductive strips, so that conductive strips and remittance The contact position for flowing item is not sharp, and the end of the prominent at least extended segment of the length of 1mm is more soft, the solar battery group Part carries out after processing lamination EVA layer and backboard, even if slightly bending is pressurized, the end of the extended segment of conductive strips also can be therewith It is bent together, effectively prevents the risk of bursting EVA and backboard, stability is protected.

Detailed description of the invention

Fig. 1 show the structural schematic diagram one of solar cell module in embodiment；

Fig. 2 show the enlarged diagram of a-quadrant in Fig. 1；

Fig. 3 show the structural schematic diagram two of solar cell module in embodiment；

Fig. 4 show the decomposition diagram of structure in Fig. 3；

Fig. 5 show the structural schematic diagram three of solar cell module in embodiment.

Specific embodiment

To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.

Now in conjunction with the drawings and specific embodiments, the present invention will be further described.

It is shown in reference picture 1, Fig. 2, a kind of solar cell module provided in this embodiment, including busbar 20 and cell piece 10, the cell piece 10 includes solar silicon wafers 11 and a plurality of conduction being electrically connected on the positive pole-face of the solar silicon wafers 10 Band 12, the conductive strips 12 also extend the cell piece 11 and form extended segment 121, and the busbar 20 is across a plurality of conduction Between extended segment 121 with 12, and electrical connection is formed, the end 122 of the extended segment 121 of the conductive strips 12 also protrudes from described At least 1mm of busbar 20.

Because of the length h at least 1mm reserved between the end 122 and busbar 20 of the extended segment 121 of conductive strips 12, so that leading The contact position of electric band 12 and busbar 20 is not sharp, and the end 122 of the prominent at least extended segment 121 of the length of 1mm is more Softness, which carries out after processing lamination EVA layer and backboard, even if slightly bending is pressurized, conductive strips 12 The end 122 of extended segment 121 can also be bent together therewith, effectively prevent the risk of bursting EVA and backboard, stability obtains It ensures.

Further, in the present embodiment, the end 122 of the extended segment 121 of the conductive strips 12 protrudes from the busbar 1mm-2mm, for example 1.2mm, 1.5mm, 1.8mm or 2mm etc., while ensureing product stability, to shape it is beautiful almost It will not impact.Of course, in other embodiments, the end 122 of the extended segment 121 of the conductive strips 12 protrudes from described The length h of busbar 20 can also be greater than 2mm, such as 2.5mm, 3mm.

Further, it in the present embodiment, is formed between the busbar 20 and the extended segment 121 of conductive strips 12 by welding Electrical connection, connection structure is stablized, easy to operate.Of course, in other embodiments, the extended segment of busbar 20 and conductive strips 12 Electric connection structure between 121 can also using dispensing, the fixed forms such as be spirally connected and realize.

Further, in the present embodiment, the cell piece 10 further includes the positive pole-face for being laterally arranged in solar silicon wafers 11 On a plurality of grid line 13, a plurality of conductive strips 12 form latticed confluence in longitudinal arrangement and being electrically connected on grid line 13 Structure, electric current convergence are high-efficient.

Further, in the present embodiment, the cell piece 10 uses single structure, and the cell piece 10 of the single structure can be transported With to the lesser solar panel of size.Of course, in other embodiments, if the size of solar panel needs more Greatly, the cell piece 10 can be set to multiple, and multiple cell pieces 10 are set side by side along the extending direction of conductive strips, and then combined and formed Stacks of cells is combined using three cell pieces 10 as shown in Figure 3, Figure 4, the conductive strips 12 of previous cell piece 10 Extended segment 121 is electrically connected to the cathode face of the solar silicon wafers 11 of the latter cell piece 10, the conduction of the cell piece 10 of least significant end Extended segment 121 with 12 is electrically connected the busbar 20, and then forms rectangular solar cell module.Or it is described Stacks of cells is equipped with multiple groups, and multiple groups stacks of cells is arranged side by side along the extending direction perpendicular to conductive strips 12, multiple groups battery The extended segment 121 of the conductive strips 12 of the cell piece 10 of the least significant end of unit group is electrically connected same busbar 20, and it is larger to form one The planar structure of volume, suitable for the solar panel of larger size, as shown in figure 5, using three groups of above-mentioned battery units Group combination, forms the structure of a 3X3 array.Again alternatively, in above-mentioned multiple groups stacks of cells, the least significant end of every group of stacks of cells The extended segment of conductive strips of cell piece connected by an independent busbar.

The present embodiment also provides a kind of solar panel, including at least solar cell module described above.

Specifically, solar panel specifically includes in the present embodiment: outer frame body and being connected in the intracorporal back of the outline border Plate, the first EVA layer, solar cell module described above, the second EVA layer and protective glass layers, the backboard, the first EVA Layer, solar cell module described above, the second EVA layer and protective glass layers are cascading.

Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details On the utility model can be made a variety of changes, be the protection scope of the utility model.

Claims

1. a kind of solar cell module, it is characterised in that: including busbar and cell piece, the cell piece includes solar power silicon Piece and a plurality of conductive strips being electrically connected on the positive pole-face of the solar silicon wafers, the conductive strips also extend the cell piece Extended segment is formed, the busbar is across between the extended segment of a plurality of conductive strips, and forms electrical connection, and the conductive strips prolong The end for stretching section also protrudes from the busbar at least 1mm.

2. solar cell module according to claim 1, it is characterised in that: the end of the extended segment of the conductive strips is convex For the busbar 1mm-2mm.

3. solar cell module according to claim 1, it is characterised in that: the extended segment of the busbar and conductive strips Between by welding formed electrical connection.

4. solar cell module according to claim 1, it is characterised in that: the cell piece further includes laterally being arranged in A plurality of grid line on the positive pole-face of solar silicon wafers, a plurality of conductive strips are in longitudinal arrangement and are electrically connected on grid line.

5. solar cell module according to claim 1, it is characterised in that: the cell piece is equipped with multiple, Duo Ge electricity Pond piece is set side by side along the extending direction of conductive strips, and then combines and form stacks of cells, the conductive strips of previous cell piece Extended segment is electrically connected to the cathode face of the solar silicon wafers of the latter cell piece, the extended segment of the conductive strips of the cell piece of least significant end It is electrically connected the busbar.

6. solar cell module according to claim 5, it is characterised in that: the stacks of cells is equipped with multiple groups, more Group stacks of cells is arranged side by side along the extending direction perpendicular to conductive strips, the cell piece of the least significant end of multiple groups stacks of cells The extended segment of conductive strips is electrically connected same busbar.

7. a kind of solar panel, it is characterised in that: including at least any solar battery group of claim 1 to 6 Part.