CN209912882U - Solar cell and photovoltaic module - Google Patents
Solar cell and photovoltaic module Download PDFInfo
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- CN209912882U CN209912882U CN201920806362.8U CN201920806362U CN209912882U CN 209912882 U CN209912882 U CN 209912882U CN 201920806362 U CN201920806362 U CN 201920806362U CN 209912882 U CN209912882 U CN 209912882U
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- 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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Abstract
The utility model discloses a solar cell uses the photomask can shield the first through-hole of backplate for light can't pass through first through-hole, and the corresponding terminal box that is located backplate side of being shaded also can't expose in the field of vision scope of solar cell photic side surface through first through-hole, thereby makes solar cell more pleasing to the eye. The end part of a connecting wire electrically connecting the cell slice can penetrate through the first through hole and the second through hole of the shading film to be connected with the junction box, and the sealing layer in the shading film can be heated and melted and solidified when the solar cell is arranged, so that light leakage structures such as the second through hole are sealed, and the junction box is thoroughly prevented from being exposed in the visual field range of the light receiving side of the solar cell. The utility model also provides a photovoltaic module has above-mentioned beneficial effect equally.
Description
Technical Field
The utility model relates to a photovoltaic technology field especially relates to a solar cell and a photovoltaic module.
Background
With the development and progress of the photovoltaic industry, the conversion efficiency and the reliability of the solar cell are greatly improved. At present, in a solar cell, it is generally necessary to provide a cell string formed by connecting a plurality of cells in series, and the plurality of cell strings are also generally required to be electrically connected to each other to form the solar cell. Generally, a junction box is required to be arranged on the surface of the back sheet of the solar cell, the junction box is electrically connected with each cell in the solar cell, and other external components are electrically connected with the solar cell through the junction box.
However, in the prior art, when the solar cell is viewed from the light-receiving side surface thereof, the junction box is generally exposed to the visual field, which affects the appearance of the solar cell. Therefore, how to avoid the exposure of the junction box in the visual field of the light receiving side of the solar cell is an urgent problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a solar battery, which can avoid the junction box from being exposed in the visual field range of the light receiving side of the solar battery; another object of the present invention is to provide a photovoltaic module, which can prevent the junction box from being exposed in the field of view of the light receiving side of the solar cell.
In order to solve the technical problem, the utility model provides a solar cell, which comprises a glass cover plate, at least two cell pieces, a connecting wire, a back plate, a shading film and a junction box;
the connecting wire is used for electrically connecting the battery pieces, the glass cover plate is positioned on the light receiving side surface of the battery pieces, and the back plate is positioned on the backlight side surface of the battery pieces;
the backboard is provided with a first through hole, the shading film is positioned on the surface of one side, opposite to the battery piece, of the backboard, and the shading film covers the first through hole; the shading film comprises a second through hole corresponding to the first through hole; the terminal box is fixed on the surface of the shading film, which faces away from the battery cell, and the end part of the connecting wire extends to the terminal box through the first through hole and the second through hole so as to be electrically connected with the terminal box;
the light shielding film comprises a base film attached to the surface of the back plate and a sealing layer positioned on the surface of the base film, which faces away from the battery piece.
Optionally, the junction box is attached to the surface of one side, back to the battery piece, of the shading film through white silica gel.
Optionally, the sealing layer is a white polyolefin layer; the junction box is attached to the surface of the white polyolefin layer through the white silica gel.
Optionally, the base film is a PET film.
Optionally, the light shielding film is shielded by the junction box.
Optionally, the second through hole includes a first sub through hole and a second sub through hole separated from each other, the positive end of the connection line passes through the first sub through hole and is electrically connected to the junction box, and the negative end of the connection line passes through the second sub through hole and is electrically connected to the junction box.
Optionally, the connecting wires include solder strips electrically connecting the adjacent battery pieces, bus bars electrically connecting the adjacent solder strips with each other, and leads; the end part of the bus bar corresponds to the first through hole, one end of the lead wire is in contact with the end part of the bus bar, and the other end of the lead wire penetrates through the first through hole and the second through hole to be in contact with the input end of the junction box.
Optionally, the first through hole corresponds to a gap portion between adjacent battery pieces.
Optionally, the battery piece is a half battery piece.
The utility model also provides a photovoltaic module, include as above-mentioned arbitrary solar cell.
The utility model provides a solar cell, which comprises a glass cover plate, at least two battery pieces, a connecting wire, a back plate, a shading film and a junction box; the connecting wire is used for electrically connecting the battery piece, the glass cover plate is positioned on the light receiving side surface of the battery piece, and the back plate is positioned on the back light side surface of the battery piece; the backboard is provided with a first through hole, the shading film is positioned on the surface of one side, back to the battery piece, of the backboard, and the shading film covers the first through hole; the shading film comprises a second through hole corresponding to the first through hole; the terminal box is fixed on the surface of one side, back to the battery piece, of the shading film, and the end part of the connecting wire extends to the terminal box through the first through hole and the second through hole so as to be electrically connected with the terminal box; the light shielding film comprises a base film attached to the surface of the back plate and a sealing layer positioned on the surface of the base film, which faces away from the battery piece.
The first through hole of the back plate can be shielded by the shading film, so that light cannot penetrate through the first through hole, and the corresponding junction box positioned on the backlight side of the back plate cannot be exposed in the visual field range of the light receiving side surface of the solar cell through the first through hole, so that the solar cell is more attractive. The end part of a connecting wire electrically connecting the cell slice can penetrate through the first through hole and the second through hole of the shading film to be connected with the junction box, and the sealing layer in the shading film can be heated and melted and solidified when the solar cell is arranged, so that light leakage structures such as the second through hole are sealed, and the junction box is thoroughly prevented from being exposed in the visual field range of the light receiving side of the solar cell.
The utility model also provides a photovoltaic module has above-mentioned beneficial effect equally, no longer gives unnecessary details here.
Drawings
In order to clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a back structure of a solar cell according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a light shielding film according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a back structure of a specific solar cell according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a specific light shielding film according to an embodiment of the present invention.
In the figure: 1. the battery comprises a battery piece, 2 connecting wires, 21 solder strips, 22 bus bars, 3 a back plate, 31 a first through hole, 4 a shading film, 41 a second through hole, 411 a first sub through hole, 412 a second sub through hole, 42 a base film, 43 a sealing layer and 5 a junction box.
Detailed Description
The core of the utility model is to provide a solar cell. In the prior art, in order to avoid the junction box from being exposed to the visual field of the light receiving side of the solar cell through the through hole on the back plate, a layer of thick silica gel is usually arranged between the junction box and the back plate to shield the junction box when the junction box is arranged. However, the situation that the junction box is exposed in the visual field range of the light receiving side of the solar cell cannot be completely avoided only by increasing the use amount of the silica gel; meanwhile, excessive silica gel is used, which generally causes the undesirable problems of excessive gel overflow and the like.
The utility model provides a solar battery, which comprises a glass cover plate, at least two battery pieces, a connecting wire, a back plate, a shading film and a junction box; the connecting wire is used for electrically connecting the battery piece, the glass cover plate is positioned on the light receiving side surface of the battery piece, and the back plate is positioned on the back light side surface of the battery piece; the backboard is provided with a first through hole, the shading film is positioned on the surface of one side, back to the battery piece, of the backboard, and the shading film covers the first through hole; the shading film comprises a second through hole corresponding to the first through hole; the terminal box is fixed on the surface of one side, back to the battery piece, of the shading film, and the end part of the connecting wire extends to the terminal box through the first through hole and the second through hole so as to be electrically connected with the terminal box; the light shielding film comprises a base film attached to the surface of the back plate and a sealing layer positioned on the surface of the base film, which faces away from the battery piece.
The first through hole of the back plate can be shielded by the shading film, so that light cannot penetrate through the first through hole, and the corresponding junction box positioned on the backlight side of the back plate cannot be exposed in the visual field range of the light receiving side surface of the solar cell through the first through hole, so that the solar cell is more attractive. The end part of a connecting wire electrically connecting the cell slice can penetrate through the first through hole and the second through hole of the shading film to be connected with the junction box, and the sealing layer in the shading film can be heated and melted and solidified when the solar cell is arranged, so that light leakage structures such as the second through hole are sealed, and the junction box is thoroughly prevented from being exposed in the visual field range of the light receiving side of the solar cell.
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of a back structure of a solar cell according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a light shielding film according to an embodiment of the present invention.
Referring to fig. 1, in the embodiment of the present invention, the solar cell includes a glass cover plate, at least two battery pieces 1, a connection line 2, a back plate 3, a light shielding film 4, and a junction box 5; the connecting wires 2 are used for electrically connecting the battery pieces 1, the glass cover plate is positioned on the light receiving side surface of the battery pieces 1, and the back plate 3 is positioned on the backlight side surface of the battery pieces 1; the back plate 3 is provided with a first through hole 31, the light shielding film 4 is positioned on the surface of the back plate 3, which faces away from the battery piece 1, and the light shielding film 4 covers the first through hole 31; the light shielding film 4 includes a second through hole 41 corresponding to the first through hole 31; the terminal box 5 is fixed on the surface of the shading film 4, which faces away from the battery cell 1, and the end of the connecting wire 2 extends to the terminal box 5 through the first through hole 31 and the second through hole 41 so as to be electrically connected with the terminal box 5; the light shielding film 4 includes a base film 42 attached to the surface of the back sheet 3, and a sealing layer 43 on the surface of the base film 42 facing away from the battery cell 1.
The above-mentioned cell 1 is the part that mainly used received light energy among the solar cell to convert light energy into electric energy, in the embodiment of the utility model provides an at least include two cell 1, can set up a plurality of battery strings of electricity connection each other in solar cell under the normal conditions, and every battery string all is established ties each other by a plurality of cell 1 and forms. In general, the battery pieces 1 are all disposed on the same layer in the solar battery, and for the specific structure of the battery pieces 1, reference may be made to the prior art, which is not described herein again.
The connecting wires 2 are used to electrically connect the battery cells 1 to each other, and the detailed structure of the connecting wires 2 will be described in detail in the following embodiments of the present invention, which will not be described herein again. In general, a solar cell has a face facing the sun and a face facing away from the sun, wherein the face facing the sun is generally referred to as the light-receiving side surface, also referred to as the front face; the side facing away from the sun is usually called the backlight side surface, also called the back surface. The glass cover plate is positioned on the light receiving side surface of the battery piece 1 to protect the battery piece 1 from being damaged and interfered by the outside, and meanwhile, the glass cover plate generally has good light transmission, and the glass cover plate is arranged on the light receiving side surface of the battery piece 1 to avoid influencing the battery piece 1. The concrete structure of above-mentioned glass apron can refer to prior art, for example toughened glass apron etc. all can, do not specifically prescribe a limit in the embodiment of the utility model.
The back sheet 3 is located on the backlight side surface of the cell 1, and the back sheet 3 mainly functions to support the solar cell and protect the backlight side surface of the cell 1 from damage. For the specific material of the back plate 3, reference may be made to the prior art, and further description is omitted here. In the embodiment of the present invention, the first through hole 31 is disposed in the back plate 3, and the first through hole 31 generally penetrates through the back plate 3 along the thickness direction, so that the back plate 3 forms a hollow structure. It should be noted that the number of the first through holes 31 in the back plate 3 is not specifically limited in the embodiment of the present invention. Since the connecting wires 2 are mainly distributed in the gaps between the adjacent cells 1 in a normal condition, in order to facilitate the routing of the connecting wires 2 inside the solar cell, the first through holes 31 may correspond to the gaps between the adjacent cells 1, so that the end portions of the connecting wires 2 extend out of the back plate 3.
The light shielding film 4 is located on the surface of the back plate 3 opposite to the battery piece 1, that is, the light shielding film 4 is located on the surface of the back plate 3 opposite to the back light. The light shielding film 4 covers the first through hole 31, that is, the light shielding film 4 covers the opening of the first through hole 31 on the surface of the back plate 3 opposite to the battery piece 1. The light shielding film 4 is a film layer that can block light from passing therethrough as the name implies. The light-shielding film 4 for shielding the first through hole 31 is provided on the backlight-side surface of the back sheet 3 to prevent external light from penetrating from the light-receiving-side surface of the solar cell to the light-receiving-side surface of the solar cell. Since the light shielding film 4 needs to cover the first through hole 31, the size of the light shielding film 4 needs to be larger than the size of the first through hole 31. Since the first through hole 31 is generally circular and the light shielding film 4 is generally rectangular, the length of the light shielding film 4 is generally required to be larger than the diameter of the first through hole 31, and the width of the light shielding film 4 is also generally required to be larger than the diameter of the first through hole 31.
The light shielding film 4 is required to be provided with a second through hole 41 corresponding to the first through hole 31 to ensure that the end of the connection line 2 can extend out of the back plate 3 through the first through hole 31 and the second through hole 41. The detailed structure of the second through hole 41 will be described in detail in the following embodiments, and will not be described herein. The terminal box 5 is fixed on the surface of the light shielding film 4 opposite to the battery cell 1, that is, the terminal box 5 covers the light shielding film 4 to be fixedly connected with the back plate 3. The end of the connecting wire 2 extends to the junction box 5 through the first through hole 31 and the second through hole 41, and contacts with the junction box 5 for electrical connection, and the junction box 5 is disposed on the surface of the shading film 4 opposite to the cell 1, so as to effectively reduce the length of the connecting wire 2.
Referring to fig. 2, in the embodiment of the present invention, the light shielding film 4 includes a base film 42 attached to the surface of the back sheet 3, and a sealing layer 43 located on a surface of the base film 42 facing away from the battery piece 1. The base film 42 is fixedly attached to the backsheet 3, and the sealing layer 43 is fixedly attached to the base film 42, typically by a glue layer. For the specific components of the glue layer, reference is made to the prior art and no particular limitation is made herein. In the embodiment of the present invention, the sealing layer 43 is heated to melt, so as to fill the light leakage structure in the light shielding film 4, such as the gap between the connection line 2 and the second through hole 41, or the gap between the base film 42 and the back plate 3; when cooled, the melted sealing layer 43 may solidify to completely seal the back sheet 3 so that light cannot pass through the first through-holes 31 of the back sheet 3. Accordingly, when the terminal block 5 is disposed, the light shielding film 4 may be slightly heated and cooled to completely seal the back sheet 3 with the sealant 43.
Specifically, since the solar cell generally needs to be exposed to the sun for use in a high temperature environment, the base film 42 is generally a PET film (high temperature resistant polyester film) in the embodiment of the present invention, so as to satisfy the use condition of the solar cell; the sealing layer 43 is usually a white polyolefin layer, and the terminal box 5 is usually bonded to the surface of the light-shielding film 4 opposite to the battery cell 1 through white silica gel, i.e., the terminal box 5 is usually bonded to the surface of the white polyolefin layer through white silica gel. Because the compatibility between the white polyolefin layer and the white silica gel is good, no interface exists between the white polyolefin layer and the white silica gel, and the attractiveness of the back surface of the solar cell is improved. In order to prevent the short circuit of the connection line 2 passing through the light shielding film 4, the materials of the light shielding film 4 are required to have good insulation properties in order to prevent the short circuit of the connection line 2.
Preferably, the terminal block 5 is required to shield the light shielding film 4 in the embodiment of the present invention. That is, the size of the terminal block 5 generally needs to be larger than the size of the light shielding film 4, so that the projection of the terminal block 5 in the horizontal direction can completely shield the projection of the light shielding film 4 in the horizontal direction; that is, the length of the light shielding film 4 needs to be smaller than the length of the terminal block 5 in general, while the width of the light shielding film 4 needs to be smaller than the width of the terminal block 5.
Preferably, the battery cell 1 may be a half-cell 1. That is, the battery sheet 1 may be a small battery sheet 1 formed by dividing a large battery sheet 1 into two. The current loss of the whole solar cell is reduced to 1/4 as the main grid current can be reduced by half by dividing the original large cell 1 into two parts; the use of the half-cell 1 can effectively reduce the hot spot effect of the solar cell, thereby effectively improving the conversion efficiency of the solar cell and reducing the manufacturing cost of the solar cell.
The embodiment of the utility model provides a solar cell, including glass apron, at least two battery pieces 1, connecting wire 2, backplate 3, photomask 4 and terminal box 5; the connecting wire 2 is used for electrically connecting the battery piece 1, the glass cover plate is positioned on the light receiving side surface of the battery piece 1, and the back plate 3 is positioned on the backlight side surface of the battery piece 1; the back plate 3 is provided with a first through hole 31, the shading film 4 is positioned on the surface of the back plate 3, which faces away from the battery piece 1, and the shading film 4 covers the first through hole 31; the light shielding film 4 includes a second through hole 41 corresponding to the first through hole 31; the junction box 5 is fixed on the surface of the shading film 4, which is opposite to the battery cell 1, and the end part of the connecting wire 2 extends to the junction box 5 through the first through hole 31 and the second through hole 41 so as to be electrically connected with the junction box 5; the light shielding film 4 includes a base film 42 attached to the surface of the back sheet 3, and a sealing layer 43 on the surface of the base film 42 facing away from the cell sheet 1.
The light shielding film 4 can shield the first through hole 31 of the back sheet 3, so that light cannot pass through the first through hole 31, and accordingly, the junction box 5 on the backlight side of the back sheet 3 cannot be exposed in the visual field range of the light receiving side surface of the solar cell through the first through hole 31, thereby making the solar cell more beautiful. The end of the connecting wire 2 electrically connecting the cell 1 is connected to the junction box 5 through the first through hole 31 and the second through hole 41 of the light shielding film 4, and the sealing layer 43 in the light shielding film 4 is melted and solidified by heat when the solar cell is disposed, so as to seal the light leaking structure such as the second through hole 41, and to completely prevent the junction box 5 from being exposed in the visual field range of the light receiving side of the solar cell.
The specific structure of the solar cell provided by the present invention will be described in detail in the following embodiments of the present invention.
Referring to fig. 3 and 4, fig. 3 is a schematic diagram of a back structure of a specific solar cell according to an embodiment of the present invention; fig. 4 is a schematic structural diagram of a specific light shielding film 4 according to an embodiment of the present invention.
Be different from above-mentioned utility model embodiment, the embodiment of the utility model provides a on the basis of above-mentioned utility model embodiment, further carry out concrete limit to solar cell's structure. The rest of the contents have been described in detail in the above embodiments, and are not described again here.
Referring to fig. 3 and 4, in the embodiment of the present invention, the second through hole 41 includes a first sub through hole 411 and a second sub through hole 412 that are separated from each other, the positive end of the connection wire 2 passes through the first sub through hole 411 to be electrically connected to the junction box 5, and the negative end of the connection wire 2 passes through the second sub through hole 412 to be electrically connected to the junction box 5.
In the embodiment of the present invention, in order to simplify the structure of the solar cell, the positive end portion and the negative end portion of the connecting wire 2 can be extended out of the back plate 3 and electrically connected to the junction box 5 through the same first through hole 31 and the same second through hole 41. In order to prevent the positive and negative end portions of the connection line 2 from contacting each other and short-circuiting, the second through hole 41 in the light shielding film 4 may include a first sub through hole 411 and a second sub through hole 412 that are separated from each other, such that the positive end portion of the connection line 2 passes through the first sub through hole 411 and the negative end portion of the connection line 2 passes through the second sub through hole 412, such that the positive end portion and the negative end portion of the connection line 2 are separated from each other. The shapes of the first sub-via 411 and the second sub-via 412 may be circular or rectangular, or may be other pattern structures, and the specific structures of the first sub-via 411 and the second sub-via 412 are not limited in the embodiment of the present invention.
In the embodiment of the present invention, the connection line 2 includes a solder strip 21 electrically connecting the adjacent battery cells 1, a bus bar 22 electrically connecting the adjacent solder strips 21 to each other, and a lead; the end of the bus bar 22 corresponds to the first through hole 31, one end of the lead wire is in contact with the end of the bus bar 22, and the other end of the lead wire passes through the first through hole 31 and the second through hole 41 to be in contact with the input end of the junction box 5.
The connecting wire 2 includes solder strips 21 for connecting the battery cells 1 in series, and bus bars 22 for electrically connecting the adjacent solder strips 21 to each other and collecting the current transmitted in the solder strips 21. The end of the bus bar 22 corresponds to a first through hole 31, and one end of a lead wire is in contact with the end of the bus bar 22, and the other end of the lead wire is in contact with the input end of the junction box 5 through the first through hole 31 and the second through hole 41, so that current is finally led to the junction box 5. The current generated by each battery piece 1 is concentrated to the bus bar 22 through the solder strip 21 and finally transmitted to the junction box 5 through the lead, so that the end of the bus bar 22 corresponds to one first through hole 31, and the length of the lead can be effectively reduced.
The solar cell provided by the embodiment of the present invention can avoid the mutual short circuit of the positive end and the negative end of the connecting wire 2 by providing the first sub-through hole 411 and the second sub-through hole 412; the length of the lead wire can be effectively reduced by corresponding the end of the bus bar 22 to the first through hole 31.
The utility model also provides a photovoltaic module, including the solar cell that the embodiment of the aforesaid arbitrary utility model provided. For the rest of the structure of the photovoltaic module, reference may be made to the prior art, and further description is omitted here.
Because above-mentioned utility model embodiment provides a solar cell can effectively avoid terminal box 5 to expose in the field of vision scope of solar cell photic side, corresponding the embodiment of the utility model provides a photovoltaic module can effectively avoid terminal box 5 to expose in the field of vision scope of photovoltaic module photic side.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is right above the utility model provides a solar cell and a photovoltaic module have introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A solar cell is characterized by comprising a glass cover plate, at least two cell pieces, a connecting wire, a back plate, a shading film and a junction box;
the connecting wire is used for electrically connecting the battery pieces, the glass cover plate is positioned on the light receiving side surface of the battery pieces, and the back plate is positioned on the backlight side surface of the battery pieces;
the backboard is provided with a first through hole, the shading film is positioned on the surface of one side, opposite to the battery piece, of the backboard, and the shading film covers the first through hole; the shading film comprises a second through hole corresponding to the first through hole; the terminal box is fixed on the surface of the shading film, which faces away from the battery cell, and the end part of the connecting wire extends to the terminal box through the first through hole and the second through hole so as to be electrically connected with the terminal box;
the light shielding film comprises a base film attached to the surface of the back plate and a sealing layer positioned on the surface of the base film, which faces away from the battery piece.
2. The solar cell according to claim 1, wherein the junction box is attached to a surface of the shading film opposite to the cell through white silica gel.
3. The solar cell of claim 2, wherein the sealing layer is a white polyolefin layer; the junction box is attached to the surface of the white polyolefin layer through the white silica gel.
4. The solar cell according to claim 3, wherein the base film is a PET film.
5. The solar cell of claim 1, wherein the junction box shields the light blocking film.
6. The solar cell according to any one of claims 1 to 5, wherein the second through hole comprises a first sub through hole and a second sub through hole separated from each other, wherein a positive terminal of the connection line is electrically connected to the junction box through the first sub through hole, and a negative terminal of the connection line is electrically connected to the junction box through the second sub through hole.
7. The solar cell according to claim 6, wherein the connection lines include solder ribbons that electrically connect adjacent ones of the cell pieces, bus bars that electrically connect adjacent solder ribbons to each other, and lead lines; the end part of the bus bar corresponds to the first through hole, one end of the lead wire is in contact with the end part of the bus bar, and the other end of the lead wire penetrates through the first through hole and the second through hole to be in contact with the input end of the junction box.
8. The solar cell according to claim 1, wherein the first through hole corresponds to a gap portion between adjacent cell pieces.
9. The solar cell of claim 1, wherein the cell is a half-cell.
10. A photovoltaic module comprising a solar cell according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920806362.8U CN209912882U (en) | 2019-05-30 | 2019-05-30 | Solar cell and photovoltaic module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920806362.8U CN209912882U (en) | 2019-05-30 | 2019-05-30 | Solar cell and photovoltaic module |
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| CN209912882U true CN209912882U (en) | 2020-01-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085693A (en) * | 2019-05-30 | 2019-08-02 | 苏州腾晖光伏技术有限公司 | A kind of solar battery and a kind of photovoltaic module |
| TWI770647B (en) * | 2020-10-23 | 2022-07-11 | 友達光電股份有限公司 | Solar module |
-
2019
- 2019-05-30 CN CN201920806362.8U patent/CN209912882U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085693A (en) * | 2019-05-30 | 2019-08-02 | 苏州腾晖光伏技术有限公司 | A kind of solar battery and a kind of photovoltaic module |
| TWI770647B (en) * | 2020-10-23 | 2022-07-11 | 友達光電股份有限公司 | Solar module |
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Effective date of registration: 20211027 Address after: 223800 No. 211, Zhongxing East Road, economic development zone, Siyang County, Suqian City, Jiangsu Province Patentee after: Siyang Tenghui New Energy Technology Co.,Ltd. Patentee after: SUZHOU TALESUN SOLAR TECHNOLOGIES Co.,Ltd. Address before: 215542 No. 1, Tenghui Road, Changkun Industrial Park, Shajiabang, Changshu, Suzhou, Jiangsu Patentee before: SUZHOU TALESUN SOLAR TECHNOLOGIES Co.,Ltd. Patentee before: TENGHUI PHOTOVOLTAIC (NINGXIA) Co.,Ltd. |
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