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Photovoltaic assembly bus bar insulating tape, bus bar comprising insulating tape, and photovoltaic assembly

A technology of insulating tape and insulating substrate, applied in photovoltaic modules, photovoltaic power generation, adhesives, etc., can solve the problems of poor heat resistance, poor adhesion, and cannot be applied to automated production, and achieve excellent adhesion and adhesion. synergistic effect

Inactive Publication Date: 2018-01-23
CYBRID TECHNOLOGIES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bonding force between the insulating strip and the metal welding strip is poor, and the heat resistance is not good. It can only meet the manual welding process, and cannot be applied to automatic production, and the efficiency is low.

Method used

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  • Photovoltaic assembly bus bar insulating tape, bus bar comprising insulating tape, and photovoltaic assembly
  • Photovoltaic assembly bus bar insulating tape, bus bar comprising insulating tape, and photovoltaic assembly
  • Photovoltaic assembly bus bar insulating tape, bus bar comprising insulating tape, and photovoltaic assembly

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Embodiment Construction

[0053] The preferred embodiments of the present invention will be described in detail below in conjunction with specific examples.

[0054] 1. Preparation of insulating tape

[0055] Epoxy resin, thermoplastic resin and / or synthetic rubber are dissolved in butanone (or commonly used acetone, toluene) by mass percentage as 20% in butanone (or commonly used acetone, toluene, Xylene, N,N-dimethylformamide, etc.) solvent, and then add flame retardant to the resin solution, after dispersion and sanding treatment. Then add curing agent and curing accelerator and stir evenly for on-line coating. On the polyimide film (PI), evenly coat 25μm thick adhesive, heat and evaporate the solvent at a heating rate of 100°C / 5mins, compound the release film or release paper, and then wind it up to obtain Insulation Tape.

[0056] 2. Preparation of bus bars

[0057] On the PI insulating tape after coating, place a flat tinned copper tape (adhesive side tinned copper tape), and then place a...

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Abstract

The invention relates to a photovoltaic assembly bus bar insulating tape, a bus bar comprising the insulating tape, and a photovoltaic assembly. The photovoltaic assembly bus bar insulating tape comprises an insulating substrate layer and an adhesive layer formed on one surface of the insulating substrate layer, wherein the insulating substrate layer is a polyimide layer which contains 2-10% of carbon black and has the light transmittance being lower than 2% in the range of 280-1100 nm; and the adhesive layer comprises the following components as raw materials in percent by mass: 20-60% of epoxy resin, 5-50% of thermoplastic resin and / or synthetic rubber, 0.1-10% of a curing agent and 10-70% of a flame retardant. The insulating substrate layer of the photovoltaic assembly bus bar insulating tape has excellent ultraviolet barrier performance, and the adhesive layer not only has excellent adherence to the insulating substrate layer, but also has excellent adhesion to metal; the photovoltaic assembly bus bar insulating tape has environmental aging properties of ultraviolet resistance, heat shock resistance, cold and heat shock resistance, damp heat resistance and the like; and the photovoltaic assembly bus bar insulating tape is thermally pressed on a metal plate or a metal bus bar and can be used for insulating the photovoltaic assembly bus bar.

Description

technical field [0001] The invention belongs to the field of insulating tapes, and relates to an insulating tape for a bus bar of a photovoltaic module, a bus bar containing the insulating tape, and a photovoltaic module. Background technique [0002] Photovoltaic module bus bars are used to connect the cells connected in series to each other. The current process is to manually weld and connect the bus bars and the solder strips drawn from the battery, and then use insulating isolation film / insulation strips to separate, insulate and fix the bus bars. [0003] In the past, the connection between the bus bar of the photovoltaic module and the battery strip was manually welded, and the efficiency was relatively low; the thick insulating film was used to isolate the bus bar and the bus bar, which made the local area bulge and affected the appearance. Flatness: The surface layer of the existing bus bar is exposed in the encapsulation film (such as transparent polyolefin materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J163/00C09J109/02C09J133/04C09J11/08C09J11/06H02S40/36
CPCC09J11/06C09J11/08C09J109/02C09J133/04C09J163/00C09J7/25H02S40/36Y02E10/50
Inventor 邓建波王善生宇野敬一陈洪野吴小平高畠博
Owner CYBRID TECHNOLOGIES INC
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