CN213150792U

CN213150792U - High-density solar cell module

Info

Publication number: CN213150792U
Application number: CN202022200511.1U
Authority: CN
Inventors: 庄浩; 孙观; 姜亚帅; 黄国平; 李菁楠
Original assignee: CECEP Solar Energy Technology Zhenjiang Co Ltd
Current assignee: CECEP Solar Energy Technology Zhenjiang Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-05-07
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a high density solar array, including a plurality of battery, the arrangement of a plurality of battery is positive and negative alternate arrangement, and the direction of battery is the syntropy and establishes ties, connects through the interconnection strip between the adjacent battery. The interval between the adjacent battery is 0.08-0.12mm, the utility model discloses a syntropy is arranged the interconnection, has reduced the efficiency loss that overlaps between the battery and cause, simplifies the processing procedure technology degree of difficulty of high density subassembly, improves the availability factor of battery.

Description

High-density solar cell module

Technical Field

The utility model relates to a high density solar module.

Background

At present, the chip spacing of the conventional assembly is usually about 2mm, the gap of the battery cannot directly generate electricity, and the electricity can be absorbed by the surrounding batteries only through multiple reflections of light, but the utilization efficiency is low, so that certain loss is caused to the assembly efficiency. Along with market demand and relevant policy guidance, the requirement of component efficiency is constantly promoted, and the area of the region without power generation is reduced by reducing the distance between batteries, so that the loss of component efficiency can be made up.

The high-density module technology in the prior art mainly has two realization modes, one is a small space type between sheets, and the other is an overlapped type between sheets. The inter-chip overlap type can be further classified into a stack tile using conductive paste overlap interconnection and a stack solder using solder ribbon overlap interconnection.

In the prior art, an overlapped area exists between the batteries, and the batteries in the overlapped area cannot generate electricity, so that the module CTM is low and the efficiency loss is large. The imbrication process has large equipment investment and high requirements on the conductive adhesive interconnection process, and the problems of yield and load reliability are easy to occur after the lamination of the components due to the fact that the overlapping regions among the batteries are interconnected by the tin-coated copper strips in the stitch welding.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the prior art, and providing a high-density solar cell module convenient to connect.

A high-density solar cell module comprises a plurality of cells, wherein the arrangement mode of the cells is positive and negative alternate arrangement, the cells are connected in series in the same direction, and adjacent cells are connected through an interconnection strip.

As a further improvement, the front surface and the back surface of the double-sided battery have power generation capacity.

As a further improvement, the interconnecting strips are connected in series on the same side of the front surface or the back surface.

As a further improvement, the cross section of the interconnection bar can be circular, triangular, trapezoidal, etc. or a segmented interconnection bar.

In order to reduce the loss of performance due to overlap, the cells are interconnected in a co-aligned arrangement with a spacing between adjacent cells of 0.08-0.12 mm.

In order to improve the current collection of the battery, the surface of the battery is provided with main grid lines, and the main grid lines are a plurality of thicker grid lines on the front side of the battery.

Has the advantages that:

this device is through arranging a plurality of battery with positive and negative alternate distribution's mode to the interconnection strip can directly carry out the interconnection at the homonymy, and need not buckle, through this design, realizes zero distance between the adjacent battery basically, has reduced the efficiency loss that overlaps between the battery and cause, has broken through the unable 0.5mm spaced technological problem of breaching through traditional battery, improves the availability factor of battery, simplifies the processing procedure technology degree of difficulty of high density subassembly, improves yield and reliability.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a high density solar cell module;

1. battery 2, interconnection bar.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

The first embodiment is as follows: as shown in fig. 1, a high-density solar cell module comprises a plurality of cells 1, wherein the cells 1 are double-sided cells, the front and back sides of the double-sided cells have the same power generation capacity, the arrangement mode of the cells 1 is positive and negative alternate arrangement, the cells 1 are connected in series in the same direction, the adjacent cells 1 are connected through interconnection bars 2, the distance between the adjacent cells 1 is 0.08-0.12mm, the surface of each cell 1 is provided with a main grid line, the adjacent cells 1 are connected through the interconnection bars 2, the interconnection bars 2 are connected in series on the same side of the front or the back, and the cross sections of the interconnection bars 2 are triangular.

In the use process, a plurality of double-sided batteries generate electricity, the double-sided batteries are alternately arranged in a positive and negative mode, the interconnection strips are connected in series on the same side on the front side or the back side, and the generated current forms a photovoltaic power generation assembly through the plurality of batteries connected in series.

Example two:

the cross section of the interconnecting bar 2 is circular, and the rest of the structure is the same as that of the first embodiment.

Example three:

the cross section of the interconnecting bar 2 is trapezoidal, and the rest of the structure is the same as that of the first embodiment.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The high-density solar cell module is characterized by comprising a plurality of cells, wherein the plurality of cells are alternately arranged in a positive and negative mode, the cells are connected in series in the same direction, and adjacent cells are connected through an interconnection strip.

2. The high-density solar cell module as claimed in claim 1, wherein the cell is a bifacial cell.

3. The high-density solar cell module as claimed in claim 1, wherein the interconnection strips are connected in series on the same side as the front side or the back side.

4. The high-density solar cell module as claimed in claim 1, wherein the cross-section of the interconnection bar is circular, triangular or trapezoidal.

5. The high-density solar cell module as claimed in claim 1, wherein the spacing between adjacent cells is 0.08-0.12 mm.

6. The high-density solar cell module as claimed in claim 1, wherein the surface of the cell is provided with a bus bar.