Solar modules compatible with cell technology iterations

Abstract

The present invention provides a solar module that is compatible with iterations of cell technology. [Solution] In the field of solar cell module technology, a solar cell module includes a solar cell module body and a battery unit installed on the solar cell module body, the battery unit is two, the two battery units are connected in parallel, each battery string includes five battery strings and one vertical bus bar, the five battery strings and one vertical bus bar are installed in series, and each battery string includes several solar cell structures connected in series. A solar cell module compatible with the battery technology of the present invention can replace 156-specification solar cell modules that have been released to the market but have failed.

Description

[Technical Field]

[0001] FIELD OF THE INVENTION The present invention relates to the field of solar cell modules, and more particularly to solar cell modules that are compatible with cell technology iterations. [Background technology]

[0002] China is currently vigorously developing its photovoltaic new energy industry, and the photovoltaic market has good prospects. To meet market demand, the industry has continued to improve processes, sizes, and performance over the years, which is mainly reflected in the technology roadmap and size of solar cells. The technology roadmap for solar cells has shifted from polycrystalline to monocrystalline, and from P-type to N-type, and the size of solar cells has also increased from 156mm and 166mm to the current 182mm and 210mm.

[0003] The 156-specification solar cell module was the mainstream version from 2012 to 2018, and the size of the corresponding module was basically fixed. Over the next two years or more, the size of the solar cell rapidly transitioned to the current mainstream cell size, and has basically remained unchanged. The historical duration of the 156-specification solar cell module is relatively long, and the market share of the corresponding module is high and it has existed in the market for a long time. However, new products of the 156-specification solar cell module are no longer being produced, and therefore, how to replace broken 156-specification solar cell modules that have been released on the market has become a problem to be solved. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to solve the problems existing in the prior art and to provide a solar cell module that is compatible with the iteration of cell technology and can replace 156 specification solar cell modules that have been released to the market but have failed. [Means for solving the problem]

[0005] In order to achieve the above object, the present invention provides the following solutions.

[0006] The present invention provides a solar cell module compatible with iterations of battery technology, comprising a solar cell module body and battery units installed on the solar cell module body, each of the battery units being connected in parallel, each of the battery units including several battery strings connected in series, and each of the battery strings including several solar cell structures connected in series.

[0007] Preferably, there are two battery units.

[0008] Preferably, each of the battery units includes five of the battery strings and one vertical bus bar.

[0009] Preferably, the five battery strings include a first battery string, a second battery string, a third battery string, a fourth battery string, and a fifth battery string, respectively, and the vertical bus bar is located between the third battery string and the fourth battery string, and the vertical bus bar is connected to the third battery string and the fourth battery string, respectively.

[0010] Preferably, the distance between the first battery string and the second battery string, the distance between the second battery string and the third battery string, and the distance between the fourth battery string and the fifth battery string all do not exceed 11.5 mm.

[0011] Preferably, the distance between the third battery string and the fourth battery string does not exceed 20 mm.

[0012] Preferably, the width of said vertical busbars does not exceed 6mm.

[0013] Preferably, each of the cell strings includes eight or more of the solar cell structures.

[0014] Preferably, the distance between adjacent solar cell structures in the same cell string is adjustable.

[0015] Preferably, the solar cell module is rectangular, the length of the long side of the solar cell module is 1640 mm to 1957 mm, and the length of the short side of the solar cell module is 992 mm. [Effects of the Invention]

[0016] Compared with the prior art, the present invention achieves the following technical advantages: This invention designs a solar cell module using the mainstream 182 / 182R solar cells on the market, which matches the version and size design of the 156 specification solar cell module, and can replace the 156 specification solar cell modules that have been released to the market but have broken down. It is also compatible with all technology roadmaps such as PERC, TOPCon, BC, HJT, etc., and enhances compatibility. [Brief explanation of the drawings]

[0017] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following will briefly describe the accompanying drawings that need to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can further obtain other drawings based on these drawings without any creative efforts.

[0018] [Figure 1] FIG. 1 is a schematic diagram of a solar cell module compatible with this iteration of the cell technology. [Figure 2] 1 is a schematic diagram (1640 mm x 992 mm) of a solar cell module compatible with this iteration of the cell technology, taking a solar cell half structure as an example. [Figure 3] 2 is a schematic diagram (1957 mm x 992 mm) of a solar cell module compatible with this iteration of the cell technology, taking a solar cell half structure as an example. DETAILED DESCRIPTION OF THE INVENTION

[0019] The technical solutions in the embodiments of the present invention will be described below clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and are not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without any creative efforts fall within the protection scope of the present invention.

[0020] The present invention aims to solve the problems present in the prior art and provide a solar cell module that is compatible with repeated cell technology and can replace 156 specification solar cell modules that have been released to the market but have failed.

[0021] In order to make the above objects, features and advantages of the present invention clearer and easier to understand, the present invention will be described in more detail below with reference to the drawings and specific embodiments.

[0022] As shown in FIGS. 1 to 3 , this embodiment provides a solar cell module 100 that is compatible with iterations of battery technology and includes a solar cell module body 1 and battery units 2 installed in the solar cell module body 1. The solar cell module body 1 is the same size as a solar cell module body in the prior art, with each battery unit 2 connected in parallel, each battery unit 2 including several battery strings connected in series, and each battery string including several solar cell structures 9 connected in series. This embodiment designs a solar cell module using 182 / 182R solar cells, which is mainstream on the market, and matches the version and size design of 156-specification solar cell modules. This can replace 156-specification solar cell modules that have been released to the market but have failed. This embodiment is compatible with all technology roadmaps, such as PERC, TOPCon, BC, and HJT, and enhances compatibility.

[0023] Specifically, in this embodiment, the solar cell module is rectangular, with the length of the long side of the solar cell module being 1640 mm to 1957 mm, and the length of the short side of the solar cell module being 992 mm. The solar cell module preferably comes in two sizes, 1640 mm x 992 mm (L1 x W) and 1957 mm x 992 mm (L2 x W), which are the same size as a 156 specification solar cell module.

[0024] In this embodiment, there are two battery units 2, each including five battery strings and one vertical busbar 8. The number of solar cell structures 9 in each battery string is equal. The five battery strings are a first battery string 3, a second battery string 4, a third battery string 5, a fourth battery string 6, and a fifth battery string 7, respectively. The first battery string 3, the second battery string 4, the third battery string 5, the vertical busbar 8, the fourth battery string 6, and the fifth battery string 7 are connected in series in positive-negative order. Adjacent battery strings are welded together by connecting a busbar. The distances between the first battery string 3 and the second battery string 4, the second battery string 4 and the third battery string 5, and the fourth battery string 6 and the fifth battery string 7 are all adjustable and do not exceed 11.5 mm. The distance between the third battery string 5 and the fourth battery string 6 is adjustable and does not exceed 20 mm. The width of the vertical busbar 8 does not exceed 6 mm.

[0025] In this embodiment, each battery string includes eight or more solar cell structures 9, and each solar cell structure 9 is connected via a welding strip, and the solar cell structure 9 is an evenly divided multi-split battery of 182 / 182R solar cells using a non-destructive cut, and the distance between adjacent solar cell structures 9 in the same battery string is adjustable.

[0026] This embodiment ensures that a five-row battery string is a valid circuit, and combines one row of vertical busbars 8 with a gap arrangement, resulting in a rational design that complies with the International Electrotechnical Commission and China Versus design standards. The design is compatible with 182 / 182R solar cells and must be compatible with all technology roadmaps such as PERC, TOPCon, BC, and HJT.

[0027] The size of the solar cell module body 1 of this embodiment matches the size and appearance design of the 156 specification solar cell module, and can replace a 156 specification solar cell module that has been released on the market but has broken down.

[0028] Compared with a 156 specification solar cell module of the same size, this embodiment uses a total of 40 to 50 182 / 182R solar cells, reducing the number of solar cells by 20 to 22, increasing the power by 15 to 55W, and resulting in higher power generation per unit area of ​​the solar cell module.

[0029] This embodiment can be compatible with solar cells of various technology roadmaps under the 182 / 182R size, including PERC, TOPCon, BC, HJT, etc. Not limited to these.

[0030] The height of the frame and the spacing of the mounting holes in this embodiment can be adapted to the broken 156 specification solar cell module, which provides excellent compatibility and improves mounting efficiency.

[0031] In this specification, the principles and embodiments of the present invention are described using specific examples, but the above examples are only used to help understand the method of the present invention and its core idea, and at the same time, for those skilled in the art, there are all changes in the specific embodiments and application scope according to the idea of ​​the present invention. Therefore, the contents of this specification should not be understood as limitations on the present invention. [Explanation of symbols]

[0032] 100-cell technology iteration and compatible solar modules 1-Solar cell module body 2-Battery Unit 3-1st battery string 4-Second battery string 5-3rd battery string 6-4th battery string 7-5th battery string 8-Vertical busbars 9-Solar cell structure

Claims

1. A solar cell module compatible with battery technology iterations, comprising: a solar cell module body; and a battery unit installed on the solar cell module body; two battery units; the two battery units are connected in parallel; each battery unit includes five battery strings and one vertical bus bar; the five battery strings and the one vertical bus bar are installed in series; and each battery string includes several solar cell structures connected in series.

2. 2. The solar cell module compatible with battery technology iterations of claim 1, wherein the five battery strings respectively include a first battery string, a second battery string, a third battery string, a fourth battery string, and a fifth battery string, and the vertical bus bar is located between the third battery string and the fourth battery string, and the vertical bus bar is connected to the third battery string and the fourth battery string, respectively.

3. 3. The solar cell module compatible with battery technology iterations of claim 2, wherein the distance between the first battery string and the second battery string, the distance between the second battery string and the third battery string, and the distance between the fourth battery string and the fifth battery string all do not exceed 11.5 mm.

4. 3. The solar cell module compatible with cell technology iterations according to claim 2, wherein the distance between the third battery string and the fourth battery string does not exceed 20 mm.

5. 2. The cell technology iteration compatible solar module of claim 1, wherein the width of the vertical busbars does not exceed 6 mm.

6. The solar cell module compatible with cell technology iterations according to claim 1 , wherein each of the cell strings includes eight or more of the solar cell structures.

7. The cell technology replication compatible solar cell module of claim 1 , wherein the distance between adjacent solar cell structures in the same cell string is adjustable.

8. The solar cell module compatible with the repetition of battery technology described in claim 1, characterized in that the solar cell module is rectangular, the length of the long side of the solar cell module is 1640 mm to 1957 mm, and the length of the short side of the solar cell module is 992 mm.

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