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Speaker magnet assembly with included spider

A technology of magnet components and support rings, which is applied in the field of support rings and can solve problems such as difficulty in attaching support rings

Active Publication Date: 2015-10-07
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can make it difficult to attach the support ring at a distance from the periphery sufficient to effectively resist vertical movement of the diaphragm and voice coil assembly

Method used

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  • Speaker magnet assembly with included spider
  • Speaker magnet assembly with included spider
  • Speaker magnet assembly with included spider

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Numerous specific details are set forth in the following description. It is understood, however, that these specific details may not be required to practice embodiments of the invention. In other instances, well-known circuits, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

[0017] figure 1 is a pictorial view of the audio speaker 100 that has been sectioned diametrically to allow a better view of the construction. The diaphragm 102 is coupled to the frame 106 by a peripheral member 104 that flexes easily to allow the diaphragm to move freely along an axis perpendicular to the diaphragm surface.

[0018] figure 2 yes figure 1 A partial cross-section of the magnet assembly shown in . The magnet assembly includes magnetic members 112, 114, a yoke 110 magnetically coupled to the magnetic members, and a pole piece 116 magnetically coupled to the magnetic members. The pole pieces form one side of...

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PUM

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Abstract

A magnet assembly for a audio speaker provides a gap through which a voice coil assembly passes. A magnetic member, a yoke, and a pole piece form a magnetic circuit that focuses magnetic energy in the gap. A spider movably supports the voice coil assembly. The spider is coupled to one of the magnetic member or the yoke by forming the one of the magnetic member or the yoke in two parts and joining the two parts with a portion of the spider between the two parts. The spider may be formed from a thin film thermoplastic, such as polyetheretherketone (PEEK), and may be less than 10 microns thick. The portion of the spider that is between the two parts may be shaped such that a portion of the two parts are in direct contact with one another.

Description

technical field [0001] Embodiments of the present invention relate to the field of electromagnetic audio speakers, and more particularly, to support rings for use in compact audio speakers. Background technique [0002] Audio speakers use electrical signals to generate air pressure waves that are perceived as sound. Many audio speakers use a diaphragm that is movably suspended in a frame by a peripheral. The diaphragm is coupled to a voice coil assembly suspended in a magnetic field. An electrical signal representing sound flows through the voice coil and interacts with the magnetic field. This causes the voice coil and coupled diaphragm to vibrate in response to the electrical signal. The vibration of the diaphragm generates air pressure waves. [0003] It is desirable to utilize a back-up ring to provide additional support for the diaphragm and voice coil. The support ring flexes easily in the direction of movement of the diaphragm, but resists movement perpendicular ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/04H04R9/06H04R9/02
CPCH04R9/043H04R9/025H04R9/06
Inventor C·维尔克
Owner APPLE INC