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Laminated component electrical structure based on junction box application

A technology of laminated components and junction boxes, applied in electrical components, circuits, photovoltaic power generation, etc., can solve the problems of inconvenient unified management, different sizes and models of junction boxes, reduce the cost of mold opening certification, and improve production flexibility , The effect of improving the market competitiveness of enterprises

Pending Publication Date: 2020-02-28
LIANYUNGANG SHENZHOU NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electrical structure of common horizontal laminated modules includes one split body with double diodes and two split body with double diodes; common vertical stacked modules include two split junction boxes with double diodes, three split junction boxes with three diodes, and two split junction boxes. Four diodes, different board shapes and electrical structures lead to different sizes and types of junction boxes used in laminated components, resulting in many types of junction boxes, which is not convenient for unified management in the manufacturing process

Method used

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  • Laminated component electrical structure based on junction box application
  • Laminated component electrical structure based on junction box application
  • Laminated component electrical structure based on junction box application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 adopts the same-position parallel junction box mode, Figure 4 It shows the arrangement method of bus bars with inflection points and branches and the installation principle of diodes in the same parallel junction box group. In Example 1, bus bar 4-1 is connected to the positive pole of the battery slice, bus bar 4-2 is connected to the primary potential, and bus bar 4- 3 link the secondary potential. The positive electrode of the cell, the primary potential and the secondary potential are arranged in order according to the voltage from high to low. The bus bars 4-1 and 4-2 are connected to the lead-out diodes, and the cable direction is at the end of the bus bar 4-1 and connected to the bus bar 4- 1 vertical. The bus bar 4-2 and the bus bar 4-3 link the intermediate body diodes. Figure 4 It shows the arrangement direction of the two pairs of punched holes at the ends of the parallel diodes.

Embodiment 2

[0032] Embodiment 2 adopts the dislocation parallel junction box mode, Figure 5 The arrangement method of the busbars and the installation principle of the diodes with inflection points and branches of the dislocation parallel junction box group are shown. In Embodiment 2, the bus bar 5-1 is connected to the positive electrode of the cell, the bus bar 5-2 is connected to the primary potential, and the bus bar 5-3 is connected to the secondary potential. The positive electrode of the cell, the primary potential and the secondary potential are arranged according to the voltage from high to low. The bus bars 5-1 and 5-2 are connected to the lead-out diodes, and the cable direction is at the end of the bus bar 5-1 and connected to the bus bar 5-1. In parallel, bus bar 5-2 and bus bar 5-3 link the intermediate body diodes. Figure 5 It shows the arrangement direction of the two pairs of punched holes at the ends of the misaligned parallel diodes.

[0033] Figure 6 It shows the...

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Abstract

The invention discloses a laminated component electrical structure based on junction box application. The structure comprises a laminated battery string, string end bus bars, parallel bus bars, bypassbus bars, corner bus bars, a lead-out junction box and an intermediate junction box. The laminated battery string is a battery string with a plurality of small battery pieces arranged in a laminatedmanner through a conductive medium to form a non-laminated spacing battery string. The string end bus bar is welded on the two ends of the laminated battery string. The parallel bus bar realizes the parallel connection of different battery strings at the same potential by using the mode of horizontal row or vertical row arrangement. One end of the bypass bus bar is connected with the parallel busbar, and one end is led out of the component to be connected with the diode in the junction box. The corner bus bar realizes the lead-out of different bypass bus bars, each junction box has and only has one diode and the component diodes are connected in parallel between the junction boxes. The universal use of the junction boxes of different versions of the laminated assembly is realized by changing the position of the outlet junction box and the position and the quantity of the intermediate junction box, the cost is reduced and the flexible design of the laminated assembly circuit is realized.

Description

technical field [0001] The invention belongs to the field of solar photovoltaic cells, and in particular relates to an electrical structure of a laminated assembly based on a junction box application. Background technique [0002] The stacking technology is connected by conductive glue or other conductors, and the laser-cut strip-shaped battery slices are overlapped and welded in a "shingled" manner to form a long strip-shaped battery string without a gap between the slices. The laminated module increases the effective power generation area of ​​the module by eliminating the distance between the battery sheets, and greatly increases the power of the module under the condition of the same or a small increase in the size of the module. Laminated modules are currently one of the main technical routes for high-power modules, which have the characteristics of large effective light-emitting area, high module power and efficiency, and high cell recycling rate. [0003] According t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/02H02S40/34
CPCH01L31/0201H02S40/34Y02E10/50
Inventor 赵志楠张昌远何涛
Owner LIANYUNGANG SHENZHOU NEW ENERGY
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