Photovoltaic assembly with built-in diodes

A technology with built-in diodes and photovoltaic modules, applied in photovoltaic power generation, photovoltaic modules, electrical components, etc., can solve problems such as damaged components, difficult operation, and diode unit settings, so as to reduce the amount of potting glue and save copper sheets and wires The effect of box volume reduction

Active Publication Date: 2016-10-12
TRINASOLAR CO LTD
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  • Application Information

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Problems solved by technology

But it is still clamped on the box body, and the diode unit is not really set inside the photovoltaic module
[0004] For example, the Chinese patent application publication number is CN102751358A, which discloses a built-in diode solar module, which adopts a patch type d

Method used

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  • Photovoltaic assembly with built-in diodes

Examples

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Example Embodiment

[0029] Example 1, see Figure 1-Figure 4.

[0030] This embodiment provides a photovoltaic module with built-in diodes, such as Figure 1a-Figure 1d with figure 2 As shown, the photovoltaic module includes a front glass 1, a front / rear packaging material layer 2, a battery string 3, a bus bar 5, and a back plate or back glass 4. A junction box 6 is provided on the back plate or back glass 4, and a cable 7 and positive and negative terminals are connected to the junction box 6. Such as image 3 As shown, a section of the bus bar 5 is pre-welded on the positive and negative electrodes of the diode 8, and a longer bus bar is pre-welded to one of the poles that needs to be connected to the wire box. When the components are stacked, the diode 8 with the bus bar 5 is connected according to the polarity between the two battery strings that need to be bypassed. One end of the longer bus bar 5 is welded in advance, and the part of the bus bar that grows out is folded and led out of the ...

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Abstract

The invention discloses a photovoltaic assembly with built-in diodes. The assembly comprises a front glass plate, a solar energy cell array, back plates and a wire box arranged on the back plate, wherein the solar energy cell array comprises multiple series connection solar energy strings. The assembly is characterized in that the diodes are connected between two bypass cell strings, positive and negative electrodes of the diodes are respectively pre-welded with one segment of bus bar, one electrodes are needed to lead out pre-welded longer bus bars connected with the wire box, during assembly lamination, the diodes pre-welded with the bus bars are connected between two bypass cell strings according to polarity, for one ends pre-welded with longer bus bars, relatively extra parts of the longer bus bars are bent to lead outside the assembly and are used for connecting with the positive/negative electrodes of the wire box, positions of the back plate corresponding to the diodes are respectively provided with an opening, and the bus bars after being bent on the diodes are led out from the openings. The assembly is convenient for part maintenance and replacement, and cost is reduced.

Description

technical field [0001] The invention relates to the technical field of solar photovoltaic components, in particular to a photovoltaic component with built-in diodes. Background technique [0002] In the junction box used by photovoltaic modules in the prior art, no matter whether it is a split junction box or a single junction box, the diodes are placed in the junction box. Such a structure leads to a bulky junction box, a lot of materials used, and a waste of cost. And because the diode is in the junction box, it is not conducive to heat dissipation. Although there have been photovoltaic module structures in which the diodes are not in the wire box, there are still defects in the structure. [0003] For example, the authorized announcement number is CN201682236U, and the Chinese patent titled a junction box of a solar photovoltaic module discloses a solar photovoltaic module in which the bypass diode unit is clamped outside the box body through a slot on the box body. Al...

Claims

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Application Information

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IPC IPC(8): H02S40/34H01L31/044
CPCY02E10/50H02S40/34H01L31/044
Inventor 孙权徐建美沈慧
Owner TRINASOLAR CO LTD
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