CN220106560U - Photovoltaic module's welding strip and photovoltaic module - Google Patents
Photovoltaic module's welding strip and photovoltaic module Download PDFInfo
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- CN220106560U CN220106560U CN202320632116.1U CN202320632116U CN220106560U CN 220106560 U CN220106560 U CN 220106560U CN 202320632116 U CN202320632116 U CN 202320632116U CN 220106560 U CN220106560 U CN 220106560U
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- photovoltaic module
- reflecting
- base
- reflecting surface
- solder strip
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- 238000003466 welding Methods 0.000 title claims abstract description 22
- 229910000679 solder Inorganic materials 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a welding strip of a photovoltaic module and the photovoltaic module, which belong to the field of the photovoltaic module, and solve the problem of lower power output of the back surface of a battery piece. The utility model is mainly used for increasing the light reflected to the battery piece.
Description
[ field of technology ]
The utility model discloses a welding strip of a photovoltaic module and the photovoltaic module, and belongs to the technical field of photovoltaic modules.
[ background Art ]
Along with the continuous higher requirements of the photovoltaic module power in the market, most of welding strips currently applied to the photovoltaic module are flat welding strips and round welding strips, the flat welding strips have serious light shielding problems, the utilization rate of the module to light is low, and the power output of the module is affected; the contact surface of the circular welding strip and the battery piece is smaller, the contact resistance is larger, and the power output of the assembly is affected.
The Chinese patent (CN 207664054U) discloses a multi-main grid and non-main grid sectional light reflecting welding strip for a photovoltaic module, which comprises an A sectional light reflecting welding strip and a B sectional welding strip, wherein the A sectional light reflecting welding strip and the B sectional welding strip are mutually arranged at intervals; the A section reflection of light welding area includes triangle-shaped first copper base, the surface of first copper base covers there is first solder reflector layer, but is equipped with the reflector layer in this patent only on the A section reflection of light welding area, consequently only can increase the light that the battery piece front shines, still can't increase the power output of battery piece reverse side.
[ utility model ]
The utility model aims to solve the problem of lower power output on the back side of a battery piece, and provides a welding strip of a photovoltaic module and the photovoltaic module, which can increase light rays reflected to the battery piece.
The technical problems are solved, and the utility model adopts the following technical scheme:
the utility model provides a photovoltaic module's welding strip, includes two bases and is used for connecting the connecting portion of two bases, and two bases are installed respectively in the front and the back of two adjacent battery pieces, and the one side that keeps away from the battery piece on two bases all is equipped with a plurality of reflection portions that are used for with the light reflection income battery piece, and the reflection portion includes lateral wall reflecting surface and top reflecting surface, and the cross-sectional area of reflection portion reduces gradually from base upper surface to top reflecting surface, and top reflecting surface indent forms the arc recess.
The beneficial effects of the utility model are as follows:
according to the photovoltaic module, the front and the back of the two adjacent battery pieces are respectively arranged on the bases, the reflecting parts are arranged on one sides of the bases, which are far away from the battery pieces, and can directly reflect most of light rays onto the battery pieces, and the light rays reflected onto the front and the back of the battery pieces can be simultaneously improved through the reflecting parts on the two bases, so that the utilization rate of the battery pieces to light is improved, and the output power of the photovoltaic module is improved; in addition, the cross section area of the reflecting part gradually decreases from the upper surface of the base to the top reflecting surface, namely, the side wall reflecting surface and the upper surface of the base form an acute angle, so that the quantity of light rays reflected into the battery pieces can be increased, the illumination quantity of the battery pieces is further increased, and the output power of the photovoltaic module is further increased; the top of the reflecting part is provided with a top reflecting surface, the top reflecting surface is concaved inwards to form an arc-shaped groove, after the light rays are reflected by the groove, part of the light rays reach the glass on the upper side of the battery piece and then are reflected to the battery piece again, so that the light rays reflected to the battery piece are increased; furthermore, the contact area between the base and the battery piece can be increased, so that the contact resistance is reduced, the loss of the resistance is reduced, and the power output of the photovoltaic module is increased.
Preferably, the reflecting part is in a prismatic table shape, the side wall reflecting surface and the upper surface of the base form an included angle a, and the included angle a is more than or equal to 30 degrees and less than or equal to 70 degrees. By adopting the technical scheme, the light reflected to the battery piece can be increased, the output power of the photovoltaic module is improved, and when a is smaller than 30 degrees, the included angle between the side wall reflecting surface and the base is smaller, so that the light reflected to the battery piece from the side wall reflecting surface can be reduced, and the output power of the photovoltaic module is further reduced; when a is larger than 70 degrees, the included angle between the side wall reflecting surface and the base is larger, so that the quantity of light irradiated to the side wall reflecting surface is greatly reduced, the light is further reduced to be reflected to the battery piece, and the output power of the photovoltaic module is reduced.
Preferably, the reflecting portion is an isosceles prism.
Preferably, the reflecting part is in a truncated cone shape, the side wall reflecting surface is a smooth curved surface arranged on the peripheral side surface of the reflecting part, the included angle between the generatrix of the reflecting part and the base is b, and b is more than or equal to 30 degrees and less than or equal to 70 degrees. By adopting the technical scheme, the range of reflection of the side wall reflecting surface can be increased by the circular table, so that the light reflected to the battery piece is increased, the output power of the photovoltaic module is improved, and when b is smaller than 30 degrees, the included angle between the side wall reflecting surface and the base is smaller, the light reflected from the side wall reflecting surface to the battery piece is reduced, and the output power of the photovoltaic module is further reduced; when b is more than 70 degrees, the included angle between the side wall reflecting surface and the base is larger, so that the quantity of light irradiated to the side wall reflecting surface is greatly reduced, the light is further reduced to be reflected to the battery piece, and the output power of the photovoltaic module is reduced.
Preferably, the top reflecting surface is a part of a spherical surface, the central angle of the cross section of the top reflecting surface is c, and c is more than or equal to 30 degrees and less than or equal to 150 degrees. By adopting the technical scheme, the light rays reflected by the top reflecting surface can be increased, and when c is smaller than 30 degrees, the area of the top reflecting surface is smaller, the light rays irradiated by the top reflecting surface are less, and the output power of the photovoltaic module can be reduced; when c is greater than 150 °, the area of the top reflecting surface is large, which increases the manufacturing cost of the reflecting portion.
Preferably, the reflecting portions are uniformly arranged along the length direction of the base, and the bottom ends of two adjacent reflecting portions are connected. By adopting the technical scheme, the side wall reflecting surface can be reduced to reflect light to the base, so that the light reflected to the battery piece is increased, and the output power of the photovoltaic module is improved.
Preferably, the connecting part is located at the gap between two adjacent battery pieces. By adopting the technical scheme, the connection part can reduce the possibility of hidden cracking of the battery piece and improve the strength of the battery piece.
Preferably, the connecting portion and the base are in an integrated structure, and the two bases are distributed at two ends of the connecting portion in the length direction.
Preferably, the reflecting part and the base are in an integrated structure; or the reflecting part is fixedly connected with the base.
A photovoltaic module comprising a plurality of cells and a solder strip connected to two adjacent cells, wherein the solder strip is a solder strip of the photovoltaic module according to any one of the above.
Other features and advantages of the present utility model will be disclosed in the following detailed description of the utility model and the accompanying drawings.
[ description of the drawings ]
The utility model is further described with reference to the accompanying drawings:
fig. 1 is a front view of a photovoltaic module of the present utility model with a solder strip mounted on a battery sheet;
fig. 2 is a front view of a solder strip of a photovoltaic module according to the present utility model;
fig. 3 is a side view of a solder strip of a photovoltaic module of the present utility model.
Reference numerals: 1 base, 11 reflection part, 111 side wall reflection surface, 112 top reflection surface, 2 connection part, 3 battery piece, 31 battery piece front, 32 battery piece back, 4 glass, 5 light.
[ detailed description ] of the utility model
The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Embodiment one:
as shown in fig. 1 to 3, this embodiment illustrates a solder strip of a photovoltaic module, which includes two bases 1 and a connecting portion 2 for connecting the two bases 1, the two bases 1 are respectively mounted on the front face 31 and the back face of two adjacent battery pieces 3, a plurality of reflecting portions 11 for reflecting light rays 5 into the battery pieces 3 are respectively disposed on one side of the two bases 1 away from the battery pieces 3, the reflecting portions 11 include side wall reflecting surfaces 111 on the peripheral side and top reflecting surfaces 112 on the top, the cross-sectional area of the reflecting portions 11 gradually decreases from the upper surface of the base 1 to the top reflecting surfaces 112, and the top reflecting surfaces 112 are concavely formed into arc grooves.
According to the photovoltaic module, the front faces 31 and the back faces of the two adjacent battery pieces 3 are respectively arranged on the base 1, the reflecting parts 11 are arranged on one sides, far away from the battery pieces 3, of the base 1, most of light rays 5 can be directly reflected onto the battery pieces 3 by the reflecting parts 11, and the light rays 5 reflected onto the front faces and the back faces of the battery pieces 3 can be simultaneously improved through the reflecting parts 11 on the two base 1, so that the utilization rate of the battery pieces 3 to light is improved, and the output power of the photovoltaic module is improved; in addition, the side wall reflecting surface 111 forms an included angle with the surface of the base 1, so that the quantity of the light rays 5 reflected into the battery piece 3 can be increased, the illumination quantity of the battery piece 3 is further increased, and the output power of the photovoltaic module is further increased; the top of the reflecting part 11 is provided with a top reflecting surface 112, the top reflecting surface 112 is concaved inwards to form an arc-shaped groove, after the light 5 is reflected by the groove, part of the light 5 reaches the glass 4 on the upper side of the battery piece 3 and then is reflected to the battery piece 3 again, and the light 5 reflected to the battery piece 3 is increased; furthermore, the contact area between the base 1 and the battery piece 3 can be increased, so that the contact resistance is reduced, the loss of the resistance is reduced, and the power output of the photovoltaic module is increased.
In this embodiment, the reflecting portion 11 is a prismatic table, and the reflecting portion 11 is an isosceles prismatic table, the side wall reflecting surface 111 forms an included angle a with the upper surface of the base 1, and a is greater than or equal to 30 ° and less than or equal to 70 °, so that the light 5 reflected to the battery piece 3 can be increased, the output power of the photovoltaic module is improved, and when a is less than 30 °, the included angle between the side wall reflecting surface 111 and the base 1 is smaller, the light 5 reflected from the side wall reflecting surface 111 to the battery piece 3 can be reduced, and the output power of the photovoltaic module is further reduced; when a is larger than 70 degrees, the included angle between the side wall reflecting surface 111 and the base 1 is larger, so that the number of the light rays 5 irradiated to the side wall reflecting surface 111 is greatly reduced, the light rays 5 are further reduced to be reflected to the battery piece 3, and the output power of the photovoltaic module is reduced.
It will be understood that, in other embodiments, the reflecting portion 11 may be a circular truncated cone, the side wall reflecting surface 111 is a smooth curved surface disposed on a peripheral side surface of the reflecting portion 11, an included angle between a bus of the reflecting portion 11 and the base 1 is b, and b is 30 ° or more and 70 ° or less, and the circular truncated cone may increase a range of reflection of the side wall reflecting surface 111, so as to increase the light ray 5 reflected to the battery piece 3, and improve the output power of the photovoltaic module.
In this embodiment, the top reflecting surface 112 is a part of a sphere, the central angle of the cross section of the top reflecting surface 112 is c, and c is 30 ° or more and 150 ° or less, so that the light ray 5 reflected by the top reflecting surface 112 can be increased, and when c is less than 30 °, the area of the top reflecting surface 112 is smaller, and less light ray 5 is irradiated by the top reflecting surface 112, so that the output power of the photovoltaic module can be reduced; on the other hand, when c > 150 °, the area of the top reflecting surface 112 is large, which increases the manufacturing cost of the reflecting portion 11.
In this embodiment, the reflecting portions 11 are uniformly arranged along the length direction of the base 1, and the bottom ends of two adjacent reflecting portions 11 are connected, so that the side wall reflecting surface 111 can be reduced to reflect the light 5 onto the base 1, further the light 5 reflected onto the battery piece 3 is increased, and the output power of the photovoltaic module is improved.
In this embodiment, the connecting portion 2 is located at a gap between two adjacent battery pieces 3, the connecting portion 2 can reduce the possibility of hidden cracking of the battery pieces 3, and improve the strength of the battery pieces 3, in addition, the connecting portion 2 and the base 1 are in an integral structure, the two bases 1 are distributed at two ends of the connecting portion 2 in the length direction, and the base 1 is welded on the battery pieces 3.
It will be understood that in other embodiments, the reflecting portion 11 may be integrally formed with the base 1.
In this embodiment, glass 4 is disposed on both the upper and lower sides of the battery plate 3, most of the light 5 directly irradiates the front face 31 of the battery plate 3 through the glass 4, and part of the light 5 irradiates the side wall reflecting surface 111, and the side wall reflecting surface 111 directly reflects the light 5 into the front face 31 of the battery plate 3; part of the light rays 5 are reflected to the side wall reflecting surfaces 111 of the adjacent reflecting parts 11 through the side wall reflecting surfaces 111, the light rays 5 are reflected between the two side wall reflecting surfaces 111 for a plurality of times and then are taken a picture of the glass 4, and the part of the light rays 5 reach the glass 4 and then are reflected to the front 31 of the battery piece 3; the light 5 irradiated onto the top reflecting surface 112 is reflected onto the glass 4 through the grooves, and part of the light 5 reaches the glass 4 and then is reflected onto the battery piece 3; the light 5 passes through the glass 4 reaching the lower side of the battery piece 3 through the gap between the two battery pieces 3, and the light 5 is reflected to the back surface 32 of the battery piece 3 through the glass 4 or is reflected back to the back surface 32 of the battery piece 3 through the reflecting portion 11.
Embodiment two:
the embodiment shows a photovoltaic module, which includes a plurality of battery pieces 3 and a welding strip connected to two adjacent battery pieces 3, wherein the welding strip is the welding strip of the photovoltaic module described in the above embodiment.
While the utility model has been described in terms of embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.
Claims (10)
1. The utility model provides a photovoltaic module's welding strip, includes two bases and is used for connecting the connecting portion of two bases, and two bases are installed respectively in the front and the back of two adjacent battery pieces, its characterized in that: and one sides of the two bases, which are far away from the battery piece, are respectively provided with a plurality of reflecting parts for reflecting light into the battery piece, each reflecting part comprises a side wall reflecting surface and a top reflecting surface, the cross section area of each reflecting part gradually decreases from the upper surface of the base to the top reflecting surface, and the top reflecting surface is inwards concave to form an arc-shaped groove.
2. The solder strip of a photovoltaic module of claim 1, wherein: the reflecting part is prismatic, the side wall reflecting surface and the upper surface of the base form an included angle a, and the included angle a is more than or equal to 30 degrees and less than or equal to 70 degrees.
3. The solder strip of a photovoltaic module of claim 2, wherein: the reflecting part is an isosceles frustum pyramid.
4. The solder strip of a photovoltaic module of claim 1, wherein: the reflecting part is in a truncated cone shape, the side wall reflecting surface is a smooth curved surface arranged on the peripheral side surface of the reflecting part, the included angle between the generatrix of the reflecting part and the base is b, and b is more than or equal to 30 degrees and less than or equal to 70 degrees.
5. The solder strip of a photovoltaic module of claim 1, wherein: the top reflecting surface is a part of a spherical surface, the central angle of the cross section of the top reflecting surface is c, and c is more than or equal to 30 degrees and less than or equal to 150 degrees.
6. The solder strip of a photovoltaic module of claim 1, wherein: the reflecting parts are uniformly arranged along the length direction of the base, and the bottom ends of two adjacent reflecting parts are connected.
7. The solder strip of a photovoltaic module of claim 1, wherein: the connecting part is positioned at the gap between two adjacent battery pieces.
8. The solder strip of a photovoltaic module of claim 7, wherein: the connecting part and the base are of an integrated structure, and the two bases are distributed at two ends of the connecting part in the length direction.
9. The solder strip of a photovoltaic module of claim 1, wherein: the reflecting part and the base are of an integrated structure; or the reflecting part is fixedly connected with the base.
10. A photovoltaic module, characterized in that: a solder strip comprising a plurality of battery cells and being connected to two adjacent battery cells, the solder strip employing the photovoltaic module of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320632116.1U CN220106560U (en) | 2023-03-24 | 2023-03-24 | Photovoltaic module's welding strip and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320632116.1U CN220106560U (en) | 2023-03-24 | 2023-03-24 | Photovoltaic module's welding strip and photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220106560U true CN220106560U (en) | 2023-11-28 |
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ID=88842983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320632116.1U Active CN220106560U (en) | 2023-03-24 | 2023-03-24 | Photovoltaic module's welding strip and photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220106560U (en) |
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2023
- 2023-03-24 CN CN202320632116.1U patent/CN220106560U/en active Active
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