Center for Advanced and Sustainable Technologies - CAST, São Paulo State University (UNESP), Av. Profa. Isette Corrêa Fontão, 505, São João da Boa Vista, São Paulo, 13876-750, Brazil.
Sci Rep. 2022 Nov 14;12(1):19493. doi: 10.1038/s41598-022-24042-7.
The worldwide loudspeaker market follows the growing tendency of electronic entertainment technologies both in quantity and variety. Consequently, the environmental impacts caused during the life cycle of loudspeakers increase in the same proportion, going in the opposite direction to what is determined by world environmental laws and regulations and global market tendencies. Even so, the environmental performance of this type of product is not considered in the decision-making process for technological updates in loudspeaker design. In this sense, Ecodesign is the most adequate Life Cycle Engineering tool applied in the design of a product since the environmental performance is considered throughout the different design stages. However, the feasibility of Ecodesign in products requiring complex production chains relies on splitting the product into subsystems and components. Thus, the present work focuses on evaluating the environmental performance of a classic loudspeaker motor, which is composed of a magnet, coil, and coil former. Eight raw material substitution scenarios are proposed and analyzed, which allowed the proposal identification with the best environmental performance within the current technologies. This represents an initial step toward the complete Ecodesign of a loudspeaker and sets the procedure to be followed with the other constitutive parts.
全球扬声器市场的发展趋势与电子娱乐技术的发展趋势一致，无论是在数量还是种类上均有所增加。因此，扬声器在其生命周期内造成的环境影响也相应增加，这与世界环境法规和全球市场趋势背道而驰。即便如此，在扬声器设计的技术更新决策过程中，并未考虑此类产品的环境性能。在这方面，生态设计是应用于产品设计的最适合的生命周期工程工具，因为在不同的设计阶段都考虑了环境性能。然而，在需要复杂生产链的产品中实施生态设计的可行性取决于将产品拆分为子系统和组件。因此，本工作重点评估了由磁铁、线圈和线圈架组成的经典扬声器马达的环境性能。提出并分析了八种原材料替代方案，从而在当前技术范围内确定了具有最佳环境性能的方案。这是扬声器完全生态设计的初步步骤，并为其他组成部分设定了后续程序。
