CN216054738U - Photovoltaic solder strip with polygonal-flat integrated structure - Google Patents
Photovoltaic solder strip with polygonal-flat integrated structure Download PDFInfo
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- CN216054738U CN216054738U CN202122080349.9U CN202122080349U CN216054738U CN 216054738 U CN216054738 U CN 216054738U CN 202122080349 U CN202122080349 U CN 202122080349U CN 216054738 U CN216054738 U CN 216054738U
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- flat
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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 photovoltaic welding strip with a polygonal-flat integrated structure, which comprises a plurality of battery pieces distributed at intervals, wherein the battery pieces are connected with each other through welding strips, each welding strip comprises a reflection section arranged on the front surface of each battery piece and a flat section arranged on the back surface of each battery piece, the front surface of one of the two adjacent battery pieces is provided with the reflection section, the back surface of the other battery piece is provided with the flat section, the reflection sections and the flat sections are alternately arranged on the spaced battery pieces and are connected to form a whole, each reflection section comprises a polygonal structure on the upper surface and a rectangular structure on the lower surface, a plurality of triangular structures extending outwards along the surfaces of the battery pieces are arranged on two sides of the rectangular structure on the lower surface of each reflection section, and each flat section is of a rectangular structure.
Description
Technical Field
The utility model relates to a photovoltaic solder strip with a polygonal-flat integrated structure.
Background
In recent years, with the increasing market demand for high power components, component technologies have been studied in an effort to improve efficiency, mainly through electricity and optics. The main electrical aspects include the size of solder strips, the number of main grids, the series-parallel circuit design, the module layout design and the like, and the main purposes are to reduce the resistance loss inside the module, increase the filling factor and further improve the module power. The solar cell module mainly comprises an antireflection coating layer, white EVA (ethylene-vinyl acetate), a reflective film, grid glass, a high-reflection back plate and the like in the aspect of optics, and the main purpose is to keep light in the module as much as possible and increase the light absorption of a cell. The reasonable design of the photovoltaic solder strip in the aspects of electricity and optics is an important means for realizing the power increase of the module.
At present, the mainstream photovoltaic welding strip is a flat welding strip and is mainly used for 5BB components; the circular welding strip is mainly used for MBB assemblies. The flat solder strip has the defect of serious shading although the flat solder strip is in good contact with the battery; although the circular solder strip can reflect light and increase the light absorption of the battery piece, the circular solder strip has the problem of poor contact with the battery (small contact area) and generates large contact resistance. Both the two solder strips have the defects of optical and electrical performance, so that the output power of the assembly has certain influence.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a photovoltaic welding strip with a polygonal-flat integrated structure.
The utility model provides a polygon-flat integrated configuration's photovoltaic solder strip, includes a plurality of interval distribution's battery piece, links to each other through the solder strip between battery piece and the battery piece, the solder strip including locating the positive reflection section of battery piece and the flat section of locating the battery piece back, the front of one of them of two adjacent battery pieces is equipped with the reflection section, then the back of another battery piece is equipped with the flat section, reflection section and flat section are located alternately on the spaced battery piece and are linked to each other and form a whole, the reflection section include the polygon structure of upper surface and the rectangle structure of lower surface, the rectangle structure both sides of reflection section lower surface are equipped with the triangle-shaped structure of a plurality of outwards extending along the battery piece surface, the flat section be the rectangle structure.
As a further improvement, the battery piece is an MBB battery.
As a further improvement, the reflecting section and the flat section are connected with the surface of the battery piece through welding.
As a further improvement, the front surface of the battery piece is a positive electrode, and the back surface of the battery piece is a negative electrode.
Has the advantages that:
the utility model aims to develop a photovoltaic solder strip with a novel structure, which solves the problem of the increase of contact resistance caused by poor contact in the aspect of electricity and solves the problem of the reduction of light utilization rate caused by shielding in the aspect of optics. The photovoltaic solder strip with the novel structure is a polygonal-flat integrated solder strip, and the solder strip consists of a reflecting section and a flat section connected with the reflecting section. The reflection section is used on the front side of the cell, light rays at different angles can be reflected upwards, and light absorption of the cell is increased; the rectangular structure enables the solar cell to have good contact with the battery, contact resistance is reduced, and the multi-triangular structure enables light rays to be reflected for the second time and the multiple times on the rectangular structure, so that light absorption of the battery piece is increased; the flat section is used for the back surface of the battery piece, is of a rectangular structure and aims to realize good contact with the battery piece and reduce contact resistance; therefore, the polygonal-flat integrated solder strip can increase the output power of the assembly by increasing the light absorption and reducing the contact resistance.
Drawings
FIG. 1 is a schematic diagram of the general structure of a photovoltaic solder strip of a polygonal-flat integrated structure;
FIG. 2 is a schematic illustration of a defect in a flat solder ribbon;
FIG. 3 is a schematic diagram of a drawback of a circular solder strip;
FIG. 4 is a schematic diagram of a reflector segment;
1. the welding strip 2, the battery piece 3, the flat section 4 and the reflection section.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1 to 4, a photovoltaic solder strip with a polygonal-flat integrated structure includes a solder strip 1, a battery piece 2, a flat section 3 and a reflection section 4.
A plurality of interval distribution's battery piece links to each other through welding the area between battery piece and the battery piece, weld the area including locating the positive reflection section of battery piece and locating the flat section of battery piece back, one of them front of two adjacent battery pieces is equipped with the reflection section, then the back of another battery piece is equipped with the flat section, reflection section and flat section are located alternately on the spaced battery piece and are linked to each other and form a whole, the reflection section include the polygonal structure of upper surface and the rectangular structure of lower surface, the rectangular structure both sides of reflection section lower surface are equipped with the triangle-shaped structure that a plurality of extends along the battery piece surface outward, the flat section be the rectangular structure.
Wherein, the battery piece is an MBB battery.
The reflection section and the flat section are connected with the surfaces of the battery pieces through welding.
The front surface of the battery piece is a positive electrode, and the back surface of the battery piece is a negative electrode.
Optical and electrical considerations are taken into account. In the optical aspect, the light rays are reflected (secondary and multiple reflection) on the polygonal surface and the triangular surface through the multi-triangular structure of the upper surface polygon and the lower surface of the reflection section, one part of the light rays is reflected to the cell piece, and the other part of the light rays is reflected to the glass surface and then reflected to the cell piece, so that the absorption of the cell piece to the light is increased; in the aspect of electricity, the rectangular lower surface of the polygonal structure is connected with the flat section structure of the reflecting section, so that the contact area with the battery is enlarged, and the contact resistance is reduced; through the polygonal-flat integrated structural design of the photovoltaic solder strip, the absorption of light is optically increased, the contact resistance is electrically reduced, and the output power of the assembly is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The utility model provides a polygon-flat integrated configuration's photovoltaic solder strip, its characterized in that includes a plurality of interval distribution's battery piece, links to each other through the solder strip between battery piece and the battery piece, the solder strip including locating the positive reflection section of battery piece and locating the flat section of battery piece back, the front of one of them of two adjacent battery pieces is equipped with the reflection section, then the back of another battery piece is equipped with the flat section, reflection section and flat section are located alternately on the battery piece of interval and are linked to each other and form a whole, the reflection section include the polygon structure of upper surface and the rectangle structure of lower surface, the rectangle structure both sides of reflection section lower surface are equipped with the triangle-shaped structure of a plurality of outwards extending along the battery piece surface, the flat section be the rectangle structure.
2. The photovoltaic solder ribbon with polygonal-flat integral structure as claimed in claim 1, wherein the battery piece is an MBB battery.
3. The photovoltaic solder strip with a polygonal-flat integrated structure as claimed in claim 1, wherein the reflective section and the flat section are connected to the surface of the cell by welding.
4. The photovoltaic solder strip with polygonal-flat integrated structure as claimed in claim 1, wherein the front surface of the cell is positive and the back surface is negative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122080349.9U CN216054738U (en) | 2021-08-31 | 2021-08-31 | Photovoltaic solder strip with polygonal-flat integrated structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122080349.9U CN216054738U (en) | 2021-08-31 | 2021-08-31 | Photovoltaic solder strip with polygonal-flat integrated structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216054738U true CN216054738U (en) | 2022-03-15 |
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ID=80623161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122080349.9U Active CN216054738U (en) | 2021-08-31 | 2021-08-31 | Photovoltaic solder strip with polygonal-flat integrated structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216054738U (en) |
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2021
- 2021-08-31 CN CN202122080349.9U patent/CN216054738U/en active Active
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