Waterproofing loudspeaker cones

A loudspeaker and hydrophobic fiber technology, applied in sensors, ceramic material diaphragms, textiles, etc., to achieve the effects of reducing wet rubbing defects, good acoustic performance, and good penetration resistance

Active Publication Date: 2011-02-16
BOSE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other materials such as aluminum and plastic are resistant to water when used, but have other disadvantages as speaker components

Method used

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  • Waterproofing loudspeaker cones
  • Waterproofing loudspeaker cones
  • Waterproofing loudspeaker cones

Examples

Experimental program
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Embodiment Construction

[0013] figure 1 The loudspeaker 10 shown in includes a cone 12 made of paper as described above. In the context of a loudspeaker that will be exposed to water, the basin is described as having a wet side 18 and a dry side 16 . It is desirable that other structures, such as a speaker enclosure (not shown), prevent moisture from reaching the dry side 16 of the basin 12 . figure 1 Middle motor 14 (in figure 1 In the example, including the magnet 14a, the voice coil 14b, the bobbin 14c and the pole 14d), the relationship with the dry side and the wet side of the basin 12 is for example only. Other arrangements are also possible, for example the inside of the basin 12 could be the wet side and the motor 14 could be located within the volume defined by the basin regardless of which side is dry and which is wet. figure 1 Other components of the example speaker include cage 20 having ventilation holes 22 , electrical connections 24 a and 24 b , and suspension 26 .

[0014] To impr...

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Abstract

A water-resistant composite paper, suitable for use as a loudspeaker component, is made from a composition including wood pulp, hydrophobic fibers, stiffening fibers that retain stiffness when wet, and fluorocarbon. In some examples, fibrillated acrylic fibers and glass fibers are used.

Description

technical field [0001] The present disclosure relates to waterproof speaker cones. Background technique [0002] Loudspeakers typically include a diaphragm and a linear motor. When driven by an electrical signal, the linear motor actuates the diaphragm, causing vibrations in the air. The diaphragm may include a basin, surround and dust cover. Loudspeaker cones are usually made of paper. The enclosure and dust cover can also be made of paper. In some applications, speakers will be used in environments exposed to water, such as automobiles. Plain paper made from wood pulp does not work well as a separator when exposed to water. Paper absorbs water, which increases its mass and reduces its stiffness, both of which affect the sound the motor makes as it beats the diaphragm. Other materials such as aluminum and plastic are resistant to water when used, but have other disadvantages as speaker components. Contents of the invention [0003] Generally, in one aspect, speaker...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R31/00
CPCH04R2307/025H04R2307/029H04R31/003H04R2307/021H04R2307/023Y10T428/249924Y10T428/249925Y10T442/607
Inventor A·F·费赫尔瓦里S·D·帕里施M·J·斯查德M·P·坦普尔R·E·艾文斯C·D·韦弗
Owner BOSE CORP
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