| Summary: | 碩士 === 環球技術學院 === 環境資源管理所 === 96 === This study utilized the Eco-Design software ProdTect and and the life cycle assessment spreadsheet Eco-Report_V5 to analyze four personal and four business-to-business KVMs (keyboard, video and mouse switches). The former was used to characterize the disassembling time of the products, their ProdTect benchmark, their green product positioning, while the latter was applied to measure the environmental impact related to their actual production.
The analysis focused on the joining types that are time consuming, and the comparisons between various indicators. As a result, a green product positioning table based on product potential and recycling rate and the environmental impact analysis were produced for the KVM industries in the design phase.
Several discoveries were made. Two main methods of joining parts of KVMs were the use of hexagon and cross screws totaling 134 and 132, respectively. The indicators were grouped into four aspects: use of materials, product design, joining techniques and use of joining types. On the aspect of use of materials, only one of them had detailed datasheet; all had good scores on the product design; on the aspect of joining techniques, many products contained up to four joining cables that cannot be cut simultaneously attached to one single component and three components joined to one specific part; and on the aspect of use of joining types, there existed diverse joining methods. One product even used seven joining types. On the evaluation of green product positioning, one product was of high product potential but low recycling rate, whereas the other seven were of high product potential and high recycling rate. On the environmental impact of the KVMs, it was found to highly related to the printed circuit board (PCB) (R≥0.87).
Therefore, the above results suggested that, in the design phase of KVMs, one should use highly recyclable material with detailed label, utilize less redundant design or PCBs to reduce its weight and environmental impact, increase use of snap fit to decrease use of screws, and cut down the use of diverse joining types and bundle up cables to reduce the disassembling time.
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