Solar cell piece, solar cell assembly and bypass diode assembling method
A technology of solar cells and bypass diodes, applied in circuits, electrical components, energy conversion devices, etc., can solve the problems of high cost and difficulty in bypass diode assembly and maintenance, and maximize the guarantee and reduce the temperature of components. , to ensure the effect of output power
Inactive Publication Date: 2015-04-29
彭·詹姆斯·宇 +2
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[0005] Therefore, the assembly and maintenance of bypass diodes are expensive and difficult
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no. 1 Embodiment approach
[0034] Reference attached Figure 1A Shown is the structural representation of this specific embodiment. The solar battery sheet 1 of this specific embodiment includes a substrate 10, and a first welding strip 11 and a second welding strip 12 are respectively arranged on different surfaces of the substrate 10, and the first welding strip 11 and the second welding strip 12 are opposite to each other. symmetrically arranged on the substrate. The solar cell 1 can be an N-type cell or a P-type cell, with Figure 1A Take P-type silicon wafers to make solar cells as an example. The first welding strip 11 is electrically connected to the negative grid line (not shown in the drawings) of the substrate 10 , and the second welding strip 12 is electrically connected to the positive grid line (not shown in the drawings) of the substrate 10 . The second welding strip 12 has an extension section (not shown in the drawings), that is, the second welding strip 12 extends to the outside of the...
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The invention provides a solar cell piece, a solar cell assembly and a bypass diode assembling method. The solar cell piece comprises a first welding strip and a second welding strip, wherein the first welding strip and the second welding strip are arranged on different surfaces of the substrate; the solar cell piece further comprises at least one diode wafer; a first electrode and a second electrode of the diode wafer are arranged on two opposite surfaces; the first electrode of the diode wafer is electrically connected to the first welding strip; the second electrode of the diode wafer is electrically connected to the second welding strip. The technical scheme has the advantages as follows: through change of a designing and assembling way of bypass diodes of the solar assembly, the corresponding bypass diode is provided for each solar cell piece, so that when part of cell pieces are shaded, only the shaded cell pieces are isolated from a main circuit, that is, the temperature when the solar assembly generates heat spots is greatly reduced, the using reliability is improved, and the maximization of output power is ensured.
Description
technical field [0001] The invention relates to the field of solar cell modules, in particular to a method for assembling solar cells, solar cell modules and bypass diodes, and the scope of application is crystalline silicon cells (P-type, N-type) and corresponding components. Background technique [0002] A solar cell module is usually formed by combining multiple solar cells in parallel or in series, and arranged in an array. For multiple solar cells or components connected in series, the current passing through them is determined by the solar cell or component with the smallest passing current capability. Therefore, when a solar cell or component is damaged or blocked, the current passing capacity of the cell will be reduced, resulting in reverse bias, and may be broken down by other normal working solar cells or components on the circuit . [0003] A common method in the prior art is to use a bypass diode in parallel at both ends of the solar cell module. When the sola...
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IPC IPC(8): H01L31/044H01L31/0443H01L31/18
CPCH01L27/1421H01L31/18H01L31/042Y02E10/50Y02P70/50
Inventor 彭·詹姆斯·宇许·敏芳赵·帕迪·新
Owner 彭·詹姆斯·宇