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Novel solar cell module

A technology of solar cells and components, applied in electrical components, circuits, photovoltaic power generation, etc., can solve the problems of high power loss, single function, large current, etc., and achieve the effect of increasing power and multiple power gains

Inactive Publication Date: 2016-04-13
青岛隆盛晶硅科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the function of the solar cell assembly is single and has the following defects: (1) This type of solar cell assembly is composed of only one series circuit, and the interconnection bar on the surface of the solar cell cell has a large current, and the resistance of the interconnection bar The resulting power loss is relatively high; (2) If one of the cells in the entire solar cell module has a "hot spot phenomenon" where the current is too low, this sheet will be consumed as a load, thereby affecting the conversion efficiency of the entire solar cell module

Method used

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Examples

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Embodiment 1

[0024] like figure 1 As shown, in the new solar cell assembly described in the present invention, the traditional solar cell assembly includes several (72pcs) solar cells connected in series, and the solar cells 3 are arranged in a certain array, and are connected into a battery string by interconnecting strips 2. Group. The strings are connected by bus bar 1 to form a large-area solar cell module, and the two battery strings are protected by a diode in the junction box, such as figure 2 shown.

[0025] The present invention proposes a new type of solar battery module, which includes three battery strings connected in series, and each string contains several substrings connected in parallel, and each substring is composed of several equal-area cut battery slices 3 using interconnection. Bar 2 is connected in series.

[0026] The present invention is an improvement to the traditional solar battery module. The premise of its implementation is to ensure that the output of eac...

Embodiment 2

[0029] The present invention adopts two equal parts to implement, and the schematic diagram is as Figure 4 , the circuit diagram as Image 6 shown accordingly. In this embodiment, 156×156mm is cut into two equal parts, and then 12pcs are connected by interconnection bar 2 as a sub-string. The two sub-strings are connected in parallel to ensure that the voltage output of solar cells with the same area remains unchanged, and the voltage of the string group protected by the diode remains the same as the traditional Solar modules are consistent.

Embodiment 3

[0031] The present invention is implemented by quartering, and the schematic diagram is as Figure 5 , the circuit diagram as Figure 7 shown accordingly. In this embodiment, 156×156mm is cut into four equal parts, and then 24pcs are connected by interconnection bar 2 as a substring. The four substrings are connected in parallel to ensure that the voltage output of solar cells with the same area remains unchanged, and the voltage of the string group protected by diodes remains the same as the traditional Solar modules are consistent.

[0032] The above embodiments can reduce the electric current of the sheet solar cell, and the resistance of the interconnection bar 2 connected to the cell sheet 3 reduces the power loss; at the same time, the blank area between the solar cells increases, and the light received by the cell surface from the blank gap increases, reaching The effect of increasing the power of the solar cell module; the above two benefits can improve the power / con...

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Abstract

The invention relates to a novel solar cell module, belongs to the technical field of packaged semiconductor devices, and aims at solving the problem of relatively high power loss caused by a series mode of an existing solar cell. The novel solar cell module comprises at least two groups of cell string groups which are connected with one another in series, wherein each cell string group comprises at least two groups of sub-string groups which are connected with one another in parallel; each sub-string group is formed by connecting equivalently cut cells through an interconnect strip in series; a circuit of each sub-string group comprises at least one diode; the interconnect strip is connected with a homopolar end of another string group and a diode end; blanking intervals are arranged among the equivalently cut cells; and the arrangement order and dimension of the cells are adjusted according to the set specification. By a parallel mode and a cell cutting mode, the blanking intervals among the cells are increased; and the power of the solar cell module is improved.

Description

technical field [0001] The invention relates to a new type of solar battery assembly, which belongs to the technical field of packaged semiconductor devices. Background technique [0002] At present, solar cell modules are mainly composed of several pieces of solar cells that are connected in series using interconnection bars to form strings, and several cell strings are arranged in a certain square array and connected in series using bus bars for packaging. It is welcomed by the market for its unique characteristics. In the prior art, the function of the solar cell assembly is single and has the following defects: (1) This type of solar cell assembly is composed of only one series circuit, and the interconnection bar on the surface of the solar cell cell has a large current, and the resistance of the interconnection bar The resulting power loss is relatively high; (2) If one of the cells in the entire solar cell module has a "hot spot phenomenon" where the current is too l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0443H01L31/05
CPCY02E10/50H01L31/042H01L31/0504
Inventor 李明四建方李建锋胡志刚
Owner 青岛隆盛晶硅科技有限公司
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