High aspect ratio microspeaker having a two-plane suspension

A micro-speaker, flat technology, applied in the loudspeaker field, that can solve problems such as increased rocking or twisting, increased risk of stability problems, increased rocking patterns, etc.

Active Publication Date: 2017-04-19
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, the diaphragm can have a relatively high length-to-width aspect ratio, which can lead to an increased risk of stability issues, such as increased severity of rocking modes of moving components
For example, as

Method used

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  • High aspect ratio microspeaker having a two-plane suspension
  • High aspect ratio microspeaker having a two-plane suspension
  • High aspect ratio microspeaker having a two-plane suspension

Examples

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Embodiment Construction

[0021] In this part, we will explain several preferred embodiments of the present invention with reference to the accompanying drawings. Whenever the shapes, relative positions, and other aspects of components described in the embodiments are not clearly defined, the scope of the present invention is not limited only to the illustrated components, which are for illustrative purposes only. Additionally, while numerous details are set forth, it is understood that some embodiments of the invention may be practiced without these details. In other instances, well-known structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

[0022] Figure 1A A cross-sectional side view of one embodiment of a transducer is shown. The transducer 100 may, for example, be an electro-acoustic transducer that converts an electrical signal into an audible signal outputtable from a device in which the transducer 100 is integrated. For examp...

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Abstract

A microspeaker includes a frame and a diaphragm having length sides that are longer than its width sides. A magnet is positioned below the diaphragm. A yoke includes a base portion positioned below the magnet and sidewalls which extend from the base portion, the yoke sidewalls positioned only along a length dimension of the magnet. A voice coil includes an upper end attached to a bottom face of the diaphragm and a lower end positioned within a gap formed between the length dimension of the magnet and the yoke sidewalls. A first suspension member is attached to the length sides and the width sides of the diaphragm and the frame. The first suspension member is within a first plane. A second suspension member is attached to the lower end of the voice coil and the frame. The second suspension member is in a second plane different from the first plane.

Description

technical field [0001] Embodiments of the present invention relate to a loudspeaker with a dual suspension system, and more particularly to a high aspect ratio microspeaker with a dual plane suspension system for improved diaphragm stability. Other embodiments are also described and protected by claims. Background technique [0002] In modern consumer electronics, audio capabilities are playing an increasing role as digital audio signal processing and audio content delivery continue to improve. In this regard, there is a wide range of consumer electronic devices that could benefit from improved audio performance. Smartphones, for example, include electro-acoustic transducers such as speakerphone amplifiers and headset receivers that may benefit from improved audio performance. However, smartphones do not have room large enough for much larger high-fidelity sound output devices. This is true for some portable personal computers such as laptops, notebooks, and tablets, and ...

Claims

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Application Information

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IPC IPC(8): H04R9/04
CPCH04R9/043H04R1/06H04R9/025H04R9/046H04R2307/204H04R2307/207H04R2499/11H04R9/04
Inventor A·V·萨尔瓦蒂P·S·维埃泰斯J·D·克罗斯比S·P·波特E·T·斯威特D·K·布斯
Owner APPLE INC
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