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公开(公告)号：EP1183905A2
公开(公告)日：2002-03-06
申请号：EP00939183.0
申请日：2000-05-31
IPC分类号： H04R9/00
摘要： An electroacoustic transducer comprising a case accommodating an armature with at least two armature legs (6); a coil (9) with an air gap, which is fitted around one armature leg (6a); a magnetic element (7, 8) with an air gap which is likewise fitted around the one armature leg, with the air gap of the coil and that of the magnetic element being located in line with each other; a diaphragm (4); and a connecting element (5) which couples a free end of the one armature leg to the diaphragm; and a printed circuit board (14) with terminals (15) for the wires of the coil and for external connections. According to the invention, the coil is attached to the printed circuit board by an end face thereof which is located essentially perpendicularly to the longitudinal axis of the air gap, and the printed circuit board is provided with at least one recess adapted to cooperate with a leg of the armature. Through these measures, the coil can be positioned symmetrically with respect to the armature leg with very high accuracy.
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2.发明公开ELECTROACOUSTIC TRANSDUCER WITH A DIAPHRAGM, AND METHOD FOR FIXING A DIAPHRAGM IN SUCH TRANSDUCER 有权与膜电声转换和方法用于固定里德这样的转换器
公开(公告)号：EP1166598A1
公开(公告)日：2002-01-02
申请号：EP00917491.3
申请日：2000-04-05
IPC分类号： H04R25/00
CPC分类号： H04R31/006 , H04R7/18 , H04R11/00 , H04R25/00 , Y10T29/49005 , Y10T29/4908
摘要： A method for manufacturing an electroacoustic transducer for, for instance, a hearing aid, with a diaphragm (5) arranged in a housing (2). According to the invention, the diaphragm is attached onto a film or punched from a sheet of material, such that along the circumferential edge of the diaphragm, a free strip of film or a strip of material (7) remains present. In a capillary space between the circumferential edge of the film and the inner wall of the housing, or in a capillary space (8) between the diaphragm and the strip of material, a polymer of a low viscosity is provided to connect the diaphragm with the housing wall. Through the method, the production of the transducer is greatly simplified.
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公开(公告)号：EP1169886A1
公开(公告)日：2002-01-09
申请号：EP00917490.5
申请日：2000-04-05
IPC分类号： H04R25/00
CPC分类号： H04R25/602 , H04R11/04 , H04R19/016 , H04R25/604 , H04R25/65 , H04R25/654 , H04R2225/33 , H04R2225/49
摘要： A microphone for a hearing aid comprises a housing with entrance means for letting pass sound waves into the housing, transducer means for converting the sound waves into an electrical signal, amplifier means for amplifying this electrical signal and connecting means for connecting the amplifier means with the terminals of a battery and for coupling the output signal of the amplifier means to a receive. The microphone further comprises an electronic circuit which is provided at an output of which a signal is available that can be transmitted directly to the receiver.
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公开(公告)号：EP1254585A2
公开(公告)日：2002-11-06
申请号：EP00992669.2
申请日：2000-12-07
IPC分类号： H04R1/00
CPC分类号： H04R19/016 , H04R1/083 , H04R2217/01
摘要： A microphone for converting sound into an electrical signal includes a generally cylindrical housing (12) including an inlet (14) for receiving sound, an inner backplate (16), and an outer backplate (18). The inner and outer backplates are generally cylindrical and substantially concentric with each other. A cylindrical membrane is disposed between the inner and outer backplates. The membrane divides an interior of said housing into a front volume and a back volume. The front volume is in direct communication with the inlet. The backplates and/or the membrane are charged. Electronics are included for detecting movement of the relative to the inner and outer backplates in response to the membrane moving when subjected to the sound. The backplates and membrane may be of a shape that approximates a cylinder, such as those that have a hexagonal or octagonal cross-section.
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