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Loudspeaker motor and suspension system

A loudspeaker and voice coil technology, applied in the direction of sensors, loudspeakers, transducer diaphragms, etc., can solve the problems of loudspeaker nonlinear distortion, unstable acoustic performance, etc.

Active Publication Date: 2018-12-21
HARMAN INT IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus, the foregoing makes conventional loudspeakers susceptible to nonlinear distortion, instability, and other acoustic performance issues

Method used

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  • Loudspeaker motor and suspension system
  • Loudspeaker motor and suspension system
  • Loudspeaker motor and suspension system

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Embodiment Construction

[0021] As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely illustrative of the invention, which may be embodied in different and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

[0022] FIG. 1 shows a partial cross-sectional view of a conventional loudspeaker according to the prior art and indicated generally at 100 . Conventional loudspeaker 100 includes a single suspension area 101 . The single suspension area 101 includes a first suspension element 102 and a second suspension element 103 . The single suspension region 101 places the voice coil 104 of...

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Abstract

A loudspeaker includes a voice coil in a balanced state. In the loudspeaker, at least a first suspension element acts on a first side of the voice coil, and at least a second suspension element acts on a second side of the voice coil. The loudspeaker includes a symmetric magnet assembly. The voice coil aligns with the symmetric magnet assembly. The symmetric alignment contributes to the loudspeaker yielding substantially symmetric motor force (BL), suspension stiffness (K), and inductance (Le).

Description

technical field [0001] Embodiments disclosed herein relate generally to speaker motors and suspension systems. Background technique [0002] Conventional loudspeakers include a single suspension zone. A single suspension zone places the voice coil unbalanced. The imbalance occurs because a single suspension area acts on one side of the voice coil. Additionally, conventional loudspeakers include asymmetrical motor regions. In the asymmetrical motor region, the motor geometry around the voice coil is not symmetrical. The unbalanced state and asymmetrical motor regions cause significantly asymmetrical motor force (BL), significantly asymmetric suspension stiffness (K), and significantly asymmetric inductance (Le). Thus, the foregoing makes conventional loudspeakers susceptible to nonlinear distortion, instability, and other acoustic performance problems. Contents of the invention [0003] In one embodiment, the loudspeaker is provided with a magnet assembly aligned along...

Claims

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Application Information

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IPC IPC(8): H04R1/00H04R7/00
CPCH04R2207/00H04R7/20H04R9/041H04R9/025H04R9/04H04R9/045H04R9/046H04R9/06H04R2400/07H04R2209/041H04R7/16H04R2400/11
Inventor B.斯特林
Owner HARMAN INT IND INC
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