Photovoltaic module and preparation method thereof

A photovoltaic module and the same technology, applied in the field of photovoltaic modules and their preparation, can solve the problems that the number of total cells 8 of photovoltaic modules cannot be increased and affect the performance of photovoltaic modules, etc., and achieve the effect of small number and low hot spot temperature

Active Publication Date: 2019-12-20
CSI CELLS CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the number of battery slices 8 protected by each diode 9 is the number of battery slices 8 in the parallel structure 7, that is, the total number of battery slices 8 in the two battery strings 6. Therefore, the number of battery slices 8 in the battery string 6 is limited by The limitation of the reverse withstand voltage capability of the diode 9 prevents the increase of the total number of cells 8 in the photovoltaic module, which affects the improvement of the performance of the photovoltaic module

Method used

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  • Photovoltaic module and preparation method thereof
  • Photovoltaic module and preparation method thereof
  • Photovoltaic module and preparation method thereof

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Embodiment Construction

[0075] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, Features and their functions are described in detail below.

[0076] An embodiment of the present invention provides a photovoltaic module, including at least one battery string, and when the number of the at least one battery string is greater than or equal to 2, the battery strings are connected in series;

[0077] The battery string group includes at least two parallel battery strings, and the battery strings include a plurality of series-connected battery slices;

[0078] The battery string includes a connected first substring and a second substring, and the connection point between the first substring and the second substring is a string connection point; in the same battery string group, all the strings The connecting point is connected with a first jumper, and each of the first substrings i...

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Abstract

The invention discloses a photovoltaic module and a preparation method thereof. In the same battery string group in the photovoltaic module, all string connection points are connected with a first jumper wire, each first sub-string is reversely connected with a diode in parallel through the first jumper wire and a first auxiliary wire, and each second sub-string is reversely connected with anotherdiode in parallel through the first jumper wire and a second auxiliary wire; and the two diodes connected by at least the same battery string group are arranged in the same junction box. According tothe technical scheme provided by the embodiment of the invention, on the premise of ensuring that the diodes are not broken down, the number of the battery pieces in each partial battery string connected with the diode in parallel is increased, so that the problem that the diodes are broken down reversely easily when the number of the battery pieces in the photovoltaic module is increased is avoided.

Description

technical field [0001] Embodiments of the present invention relate to the field of photovoltaic power generation, and in particular to a photovoltaic module and a preparation method thereof. Background technique [0002] With the continuous development of photovoltaic power generation technology, photovoltaic modules are gradually being used in various fields of social life and are favored by users. [0003] figure 1 It is a schematic circuit diagram of a photovoltaic module in the prior art. Such as figure 1 As shown, the photovoltaic module in the prior art includes 12 battery strings 1, every two battery strings 1 form a series structure 2, every two series structures 2 form a parallel structure 3, and each parallel structure 3 is connected in series, wherein, each A battery string 1 is composed of a plurality of battery slices 5 connected in series, and two series structures 2 in each parallel structure 3 are antiparallel connected with a diode 4 . figure 1 In the ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0443H01L31/18
CPCH01L31/18H01L31/0443Y02E10/50Y02P70/50
Inventor 潘秀娟毛剑宇董经兵许涛邢国强
Owner CSI CELLS CO LTD
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