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Acoustic panel assembly

A panel component and acoustic technology, applied in the direction of planar diaphragm, electrical components, sensors, etc., can solve the problems of ineffective magnetic system configuration, limited number of magnetic induction lines of voice coil, etc.

Active Publication Date: 2020-01-17
ASK IND SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The configuration of the magnetic system obtained by a ring or block of magnetic material is not very efficient because of the limited number of magnetic induction lines that can pass radially through the voice coil

Method used

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  • Acoustic panel assembly
  • Acoustic panel assembly
  • Acoustic panel assembly

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Embodiment Construction

[0037] In the following description, the same or corresponding parts as those described above are denoted by the same reference numerals, and their detailed descriptions are omitted.

[0038] figure 2 An acoustic panel assembly 100 according to a first embodiment of the invention is shown.

[0039] The acoustic panel assembly 100 includes an acoustic panel 4 having a cylindrical through hole 40 .

[0040] The voice coil 106 is disposed in the through hole 40 of the acoustic panel. The acoustic panel 4 directly serves as a support for supporting the voice coil 106 .

[0041] refer to image 3 and Figure 3A , the voice coil 106 is flat planar and has a ring shape including an inner diameter D1 and an outer diameter D2.

[0042] The voice coil 106 is obtained by winding a flat wire into a circular planar configuration with no overlapping wires. In this case, the voice coil 106 has a smaller height because no wires overlap vertically. The ratio between height H and thickn...

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PUM

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Abstract

An acoustic panel assembly (100) comprises: an acoustic panel (4); a magnetic circuit (101) that generates a gap (T); and a voice coil (106) that is provided in the gap (T) so as to move as the current passes therethrough. The voice coil (106) is connected to the acoustic panel (4) so as to move the acoustic panel (4) to produce sound. The magnetic circuit (101) is provided corresponding to the voice coil (106) so as to protrude forward and backward with respect to the acoustic panel.

Description

technical field [0001] The present invention relates to acoustic panel assemblies. Background technique [0002] Acoustic panels, also known as Distributed Mode Loudspeakers (DML), reproduce sound over a large audio frequency range in a so-called "distributed mode" by propagating "bending waves" in the body of the panel. The excitation device produces the bending and corrugation of the panel, obtaining an acoustic response distributed in the audio frequency range. [0003] With this mechanism of operation and sound production, it is clear that the choice of the properties of the materials used for the panels in terms of rigidity, damping and self-noise is fundamental to obtaining an audio response with high quality and high fidelity. [0004] A very popular property of DML acoustic panels (which sets them apart from other loudspeakers) is the emission of a non-directional diffuse sound field over a wide audio range. However, acoustic panels suffer from poor low-frequency r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/06H04R9/025H04R2400/11H04R9/047H04R9/043H04R7/20H04R7/04H04R7/18H04R9/046
Inventor C·桑奇西
Owner ASK IND SPA