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Nested compound loudspeaker drive unit

A loudspeaker and nested technology, applied in the field of loudspeakers, can solve problems such as poor frequency response and directional control, complex mechanical structure, discontinuous diaphragm geometry, etc., to achieve linearity improvement, good directional control, simple mechanical The effect of the structure

Active Publication Date: 2013-09-25
GENELEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In general, known attempts to provide composite loudspeakers have complex mechanical structures and diffraction problems caused by geometrical discontinuities in the diaphragm
This diffraction problem usually results in poor frequency response and directivity control

Method used

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  • Nested compound loudspeaker drive unit
  • Nested compound loudspeaker drive unit
  • Nested compound loudspeaker drive unit

Examples

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Embodiment Construction

[0022] In this context, the term "rigid" refers to structures that are considered not to vibrate significantly with the applied electromechanical power generated by any voice coils in the system, and the term "elastic" refers to structures that are not vibrated due to any voice coils in the system. A structure that bends, compresses, or expands when an electromechanical force is applied. Additionally, the term "forward direction" refers to the main direction in which sound waves are radiated from the speaker, ie the direction in which the diaphragm moves closer to the assumed sound receiver. In contrast, the term "rearward direction" refers to the reverse of the forward direction. Correspondingly, the terms "front" and "rear" refer to the side of the loudspeaker that is located in the direction of said forward or rearward direction. The term "voice coil former" is used to denote any type of structure capable of mechanically connecting the voice coil to the vibrating diaphragm...

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Abstract

A loudspeaker driver (22) also suitable for compound applications comprising a rigid speaker frame (11, 13, 15, 19, 8) to which is attached a permanent magnet (13) with which a voice coil winding (9) is adapted to interact through electromagnetic force. The voice coil winding (9) is adapted to deliver axial motion to a diaphragm assembly (21), which includes an elastic outer section (2), whose outer rim (5) is attached to the outer part of the speaker frame (11). The diaphragm assembly (21) comprises an essentially rigid primary vibrating diaphragm (4) attached between the elastic outer section (2) and an elastic inner section (3), whose inner rim (10) is attached to the inner part of said speaker frame (8). Said voice coil winding (9) is fixed to the primary vibrating diaphragm (4) through said voice coil former (6), which is adapted to move said diaphragm assembly (21).

Description

technical field [0001] The present invention relates to loudspeakers. More specifically, the present invention relates to a new type of drive unit. According to a preferred embodiment, the drive unit may be a nested compound drive unit, which is particularly suitable for mid-frequency and high-frequency sound reproduction applications. Background technique [0002] Traditionally, composite loudspeakers comprise at least two driver units providing suitable reproduction of low and high frequency bands. Traditionally, low frequency and high frequency drivers have been separate entities, but when high fidelity is sought without response and directivity errors, the drivers are positioned somewhat concentrically. Thus, an improved composite loudspeaker driver is typically a frequency / midrange unit integrated with high frequency drivers, each of which is attached separately in front of or near the system's low frequency voice coil. An example of the latter can be found in docume...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R7/16
CPCH04R7/16H04R9/04
Inventor A·O·瓦拉
Owner GENELEC
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