发明名称 Electromechanical conversion system with moving magnets; acoustic diffuser comprising said system and a moving member that generates sound waves
摘要 The invention relates to an electromechanical conversion system comprising: a fixed supporting structure, a movable element with respect to the fixed structure; at least one excitation coil; and at least one permanent magnet for generating an excitation magnetic field. The permanent magnet is integral with the movable element and the coil is integral with the fixed supporting structure. Moreover, a ferromagnetic circuit is provided fixed with respect to the structure and cooperating with the permanent magnet.
申请公布号 US8861776(B2) 申请公布日期 2014.10.14
申请号 US201113636819 申请日期 2011.03.21
申请人 发明人 Lastrucci Claudio
分类号 H04R11/00;H02K33/16;H04R11/02 主分类号 H04R11/00
代理机构 McGlew and Tuttle, P.C. 代理人 McGlew and Tuttle, P.C.
主权项 1. An electromechanical conversion system comprising: a fixed supporting structure; a movable element, said movable element being movable with respect to the fixed supporting structure according to a direction of motion; at least one excitation coil comprising a strip shaped conductor wound about a coil axis, said coil axis being orthogonal to said direction of motion of said movable element, said movable element being arranged outside said excitation coil; at least one magnet for generating an excitation magnetic field, wherein said at least one magnet is integral with the movable element and said excitation coil is integral with the fixed supporting structure, said at least one magnet comprising poles, said poles being aligned orthogonal to said direction of motion; and a ferromagnetic circuit cooperating with said at least one magnet, said ferromagnetic circuit being fixed with respect to said fixed supporting structure, wherein a plurality of plates of ferromagnetic material forming part of said ferromagnetic circuit are inserted between turns of said excitation coil.
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