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公开(公告)号：EP1943876B1
公开(公告)日：2011-03-09
申请号：EP06831314.7
申请日：2006-11-02
IPC分类号： H04R9/06
摘要： The invention relates to an electrodynamic transducer (1) having a dome membrane (2) comprising an electrodynamic motor with a coil (6) which is supported by a mandrel (3) that is solidly connected to the membrane which is suspended from a frame (7). The aforementioned coil is disposed in a gap in which it can move and which is defined at the centre by an inner magnetic structure (4) and at the periphery by an outer magnetic structure (5). According to the invention, the suspension does not contain a peripheral suspension nor an inner suspension. The inventive transducer comprises at least two means (11) for confining the magnetic field in the gap in order to form at least two tiered ferrofluidic seals (12, 13, 14) in the gap using a ferromagnetic liquid, such as at least to guide the coil and to form a pneumatic seal between the front and rear faces of the membrane, at least one of said ferrofluidic seals being continuous. The invention is suitable for loudspeakers.
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公开(公告)号：EP1943876A1
公开(公告)日：2008-07-16
申请号：EP06831314.7
申请日：2006-11-02
IPC分类号： H04R9/06
摘要： The invention relates to an electrodynamic transducer (1) having a dome membrane (2) comprising an electrodynamic motor with a coil (6) which is supported by a mandrel (3) that is solidly connected to the membrane which is suspended from a frame (7). The aforementioned coil is disposed in a gap in which it can move and which is defined at the centre by an inner magnetic structure (4) and at the periphery by an outer magnetic structure (5). According to the invention, the suspension does not contain a peripheral suspension nor an inner suspension. The inventive transducer comprises at least two means (11) for confining the magnetic field in the gap in order to form at least two tiered ferrofluidic seals (12, 13, 14) in the gap using a ferromagnetic liquid, such as at least to guide the coil and to form a pneumatic seal between the front and rear faces of the membrane, at least one of said ferrofluidic seals being continuous. The invention is suitable for loudspeakers.
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3.发明公开TRANSDUCTEUR ELECTRODYNAMIQUE, APPLICATIONS AUX HAUT-PARLEURS ET GEOPHONES 有权ELEKTRODYNAMISCHER WANDLER UND DESSEN ANWENDUNG IN LAUTSPRECHERN UND GEOPHONEN
公开(公告)号：EP1946607A2
公开(公告)日：2008-07-23
申请号：EP06841994.4
申请日：2006-11-02
IPC分类号： H04R9/02
CPC分类号： H04R9/025 , H04R2209/021 , H04R2209/022
摘要： The invention relates to an electrodynamic transducer including a frame and containing at least one electric coil (2) which is placed in a static magnetic field and which can move about a rest position in a vertical free space. The aforementioned coil(s) is wound around and fixed to a mandrel (12) and a return means is used to return the coil-bearing mandrel to the rest position in the absence of an external bias, said straight cylinder defining an inner volume and an outer volume. According to the invention, the magnetic field is produced by outer and inner magnetic structures which each comprise at least one fixed permanent magnet in the form of a ring. The motor does not contain any ferromagnetic or magnetic part between the outer volume and the inner volume. Moreover, at least the part of the frame that is used to fix the magnets is made form a non-ferromagnetic and non-magnetic material. The ratio R of the inductance value Lp of the coil when at rest and blocked in the transducer to the inductance value Ll of the same coil when free and isolated in the space is between 0.9 and 1.1 in the useful frequency band of the transducer. Numerous implementation variants are disclosed in the invention.
摘要翻译： 换能器具有产生磁场的内部和外部磁性结构以及环形形式的各自的永磁体。 结构位于在内部和外部体积之间延伸的自由垂直空间的侧面。 电机不具有铁磁或磁性部件。 固定磁体的框架由非铁磁性和非磁性材料制成。 在换能器的有用频带中，电动线圈（2）在换能器中被阻塞的电感值与在空间中自由隔离的线圈的电感线圈的比值在0.9和1.1之间。
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4.发明授权TRANSDUCTEUR ELECTRODYNAMIQUE, APPLICATIONS AUX HAUT-PARLEURS ET GEOPHONES 有权TRANSDUCTEUR ELECTRODYNAMIQUE，应用AUX HAUT-PARLEURS ET GEOPHONES
公开(公告)号：EP1946607B1
公开(公告)日：2017-09-20
申请号：EP06841994.4
申请日：2006-11-02
申请人： ACOUSTICAL BEAUTY
IPC分类号： H04R9/02
CPC分类号： H04R9/025 , H04R2209/021 , H04R2209/022
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