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An electromechanical-electroacoustic transducer with low thickness and high travel range and relevant manufacturing method

A technology of electro-acoustic transducers and transducers, applied in the direction of sensors, electrical components, sensor parts, etc., can solve the problems that are not easy to realize, irrelevant to the external diameter, and the total thickness cannot reach the stroke range, etc.

Active Publication Date: 2014-02-19
M·塞尔瓦迪奥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a solution is not easy to implement and is bulky due to the use of a large amount of iron and does not allow for a significant range of travel relative to the overall thickness, regardless of the external diameter

Method used

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  • An electromechanical-electroacoustic transducer with low thickness and high travel range and relevant manufacturing method
  • An electromechanical-electroacoustic transducer with low thickness and high travel range and relevant manufacturing method
  • An electromechanical-electroacoustic transducer with low thickness and high travel range and relevant manufacturing method

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Embodiment Construction

[0044] Referring to the above drawings, there is disclosed the transducer of the present invention. Hereinafter, the terms "below, above, horizontal and vertical" refer to configurations in the drawings.

[0045] refer to Figure 1 to Figure 6 , discloses a first embodiment of a transducer, generally indicated by reference numeral 1 .

[0046] The transducer 1 includes: a magnetic assembly 3; an elastic suspension 4 connected to the magnetic assembly 3; a sound membrane 5 connected to the elastic suspension 4; and a coil 6 supported by a support 8, the support The component is connected with the sound membrane 5 so as to move relative to the magnetic assembly 3 .

[0047] refer to figure 2 , the magnetic assembly 3 includes a plurality of magnets 30 which are accommodated and supported by the support structure 7 .

[0048] refer to Figure 2A As shown, each magnet 30 has two opposing sides 31, 32 with a south magnetic pole S and a north magnetic pole N therein. Thus, th...

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Abstract

An electroacoustic transducer (1) is disclosed, comprising: a ring-shaped magnetic assembly (3) that generates a magnetic field, an elastic suspension (4) connected to the magnetic assembly, a support (8) connected to the elastic suspension and supporting a coil (6) adapted to move in the magnetic field generated by the magnetic assembly, and an acoustic membrane (5) connected to the support (8) of the coil in order to vibrate and emit a sound. The magnetic assembly (3) comprises: a thin housing and support structure (7) made of non-magnetic material, and a plurality of magnets (30) with magnetic axis (A) and axial anisotropy, said magnets (30) being disposed side by side, inside said thin housing and support structure (7) that acts as bearing structure for the transducer and as containment structure for the magnets.

Description

technical field [0001] The present invention relates to an electromechanical-electroacoustic transducer with low thickness and high stroke, especially for loudspeakers and its manufacturing method. Background technique [0002] US Patent No. 6359997 discloses a loudspeaker comprising a magnetic ring consisting of a plurality of radially magnetized magnets arranged in a laterally adjacent manner. Radial magnetization means that the lines of magnetic induction converge radially to a point, which is the center of the transducer, so the magnetic ring is only suitable for circular transducers. [0003] Furthermore, the magnetic ring is supported by a mandrel mounted in the transducer basket, so the magnetic ring is not a self-supporting element. The above-mentioned transducer has an elastic suspension connecting the moving coil to the basket. However, the provision of a spindle supporting the magnetic assembly and the presence of a suspension does not allow for a particularly t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/02
CPCH04R2209/021H04R9/025Y10T29/49005H04R1/00H04R31/003
Inventor M·塞尔瓦迪奥
Owner M·塞尔瓦迪奥
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