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Photovoltaic solder strip and photovoltaic module

A technology of photovoltaic ribbons and ribbons, which is applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problem of color inconsistency between photovoltaic cells and backplanes, inability to apply component glare requirements, and affecting the aesthetics of photovoltaic modules, etc. problems, to achieve the effect of improving welding flexibility, improving uniformity and stability, and improving aesthetics

Pending Publication Date: 2020-11-03
SUZHOU YOURBEST NEW TYPE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to realize the conductive connection with the battery sheet, the outer surface of the solder ribbon substrate often needs to be coated with a layer of solder, such as tin-lead alloy, etc. Therefore, the color of the common solder ribbon is generally silver, when it is applied to black solar photovoltaic modules When it is used, its natural color is inconsistent with the color of the photovoltaic cell and the backsheet, which affects the aesthetics of the photovoltaic module
Moreover, this kind of silver ribbon often has the problem of reflection, so it cannot be applied to places that require glare of components

Method used

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  • Photovoltaic solder strip and photovoltaic module
  • Photovoltaic solder strip and photovoltaic module
  • Photovoltaic solder strip and photovoltaic module

Examples

Experimental program
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Effect test

no. 1 approach

[0055] see Figure 2A-Figure 2C , which respectively show cross-sectional views of the first segment 101 , the second segment 103 and the third segment 104 of the photovoltaic ribbon according to the first embodiment of the present invention.

[0056] The solder ribbon comprises a base body 11 (conductive base material) wherein, in a first segment 101, a layer of solder is applied on the bottom surface of the first segment in order to enable the first segment to be bonded to the front side of the photovoltaic cell sheet 12; In addition, a black coating (for example, black paint) 13 is coated on other surfaces of the first segment body except the bottom surface, so that the first segment body 101 of the photovoltaic ribbon is bonded to the front side of the battery sheet The appearance is black and does not produce reflections.

[0057] Such as Figure 1B As shown, since the third segment body 104 needs to be bonded to the back of the adjacent battery sheet, therefore, as F...

Embodiment approach 1

[0063] In the first alternative embodiment of the present invention, in order to simplify the process, preferably, see Figure 4A-Figure 4C , which respectively show cross-sectional views of the first segment 101 , the second segment 103 and the third segment 104 according to the first alternative embodiment of the present invention.

[0064] Such as Figure 4A-Figure 4C As shown, the entire surfaces of the first segment body 101 , the second segment body 103 and the third segment body 104 are coated with the solder layer 12 . Wherein, in the first segment body 101, on other surface parts except the bottom surface, a black coating layer 13 is further coated above the solder layer 12; in the second segment body 103, the solder layer 12 on the entire surface is further A black coating 12 is applied.

[0065] Figure 5 The connection state of the photovoltaic ribbon and the photovoltaic cell sheet 90 according to the first alternative embodiment is shown. Among them, the firs...

Embodiment approach 2

[0068] see Figure 6A-6C , which respectively show cross-sectional views of the first segment 101 , the second segment 103 and the third segment 104 of the photovoltaic ribbon according to the second alternative embodiment of the present invention.

[0069] Wherein, in the first segment body 101, a solder layer 12 is coated on the bottom surface, a black coating layer 13 is coated on other surfaces except the bottom surface, and a black coating layer 13 is coated on the entire surface of the second segment body 103. There is a black coating 13, and the third segment 104 has a coating structure symmetrical to that of the first segment, that is, a solder layer 12 is coated on the top surface, and a black coating is coated on other surfaces except the top surface. Layer 13.

[0070] Figure 7A with Figure 7B The connection states of the photovoltaic ribbons and the photovoltaic cells 90 according to the second alternative embodiment are shown respectively.

[0071] exist F...

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Abstract

The invention provides a photovoltaic solder strip and a photovoltaic module. The photovoltaic solder strip comprises a base body, and the photovoltaic solder strip is a periodic solder strip section;the single-period solder strip section comprises a first section body which is used for being connected to a front grid line of a photovoltaic cell, wherein a solder layer is arranged on the bottom surface of the base body in the first section body, and a black coating is arranged on the surface except the bottom surface; a second section body which is used for being arranged between two adjacentphotovoltaic battery pieces, wherein in the second section body, a black coating is at least arranged on the surface, except the bottom surface, of the base body; and a third section body which is used for being jointed on the back surface of the adjacent photovoltaic cell, wherein in the third section body, a solder layer is at least arranged on the surface of the top of the base body. The photovoltaic module comprises at least two photovoltaic cells and the photovoltaic solder strip, and at least two photovoltaic cells are sequentially and adjacently arranged through the photovoltaic solderstrip.

Description

technical field [0001] The invention relates to the field of photovoltaics, in particular to a photovoltaic ribbon and a photovoltaic module. Background technique [0002] Photovoltaic modules are used to convert solar energy into electrical energy. The interior of the photovoltaic module includes a plurality of photovoltaic cells. Two adjacent photovoltaic cells are connected in series by welding ribbons. The welding ribbons are bonded to the battery main grid for collection and transmission. current. [0003] In order to realize the conductive connection with the battery sheet, the outer surface of the solder ribbon substrate often needs to be coated with a layer of solder, such as tin-lead alloy, etc. Therefore, the color of the common solder ribbon is generally silver, when it is applied to black solar photovoltaic modules At the same time, its natural color does not coordinate with the color of the photovoltaic cell and the backsheet, which affects the aesthetics of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05
CPCH01L31/0504H01L31/0508H01L31/0512Y02E10/50
Inventor 肖锋朱骄峰
Owner SUZHOU YOURBEST NEW TYPE MATERIALS
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