Loudspeaker

一种扬声器、边缘的技术，应用在扬声器领域，能够解决上下振幅困难、很难扬声器谐波失真等问题

Active Publication Date: 2006-04-26
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is very difficult to fully balance the upper and lower amplitudes of the vibrating membrane 3, which makes it difficult to completely suppress the harmonic distortion of the speaker.

Method used

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  • Loudspeaker
  • Loudspeaker
  • Loudspeaker

Examples

Experimental program
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Embodiment Construction

[0022] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In this description, the same reference numerals refer to the same structures as those described in the background art.

[0023] figure 1 is a sectional view showing a speaker according to an exemplary embodiment of the present invention. The magnetic circuit 1 located in the middle of the bottom of the bracket 5 is formed by combining and bonding a magnet 10 , a pressing plate 11 and a magnetizer 12 . The magnetic circuit 1 is provided with a magnetic gap 13 opening toward the upper side of the speaker. The voice coil unit 2 has a structure including a cylindrical body 2 a and a coil 2 b wound around an outer peripheral portion of the body 2 a , and is slidably provided with respect to the magnetic gap 13 , the sliding causing the vibration amplitude of the diaphragm 3 . Vibrating membrane 3 is connected to the upper portion of voice coil unit 2 at its i...

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PUM

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Abstract

Loudspeaker of the present invention has such structure, wherein, the edge diameter (14) on the cross section that is connected to the second edge (7) of suspension bracket (6) is larger than the first edge (4) that is connected to vibrating membrane (3) The edge diameter on the cross-section of (15). With this structure, a speaker with less harmonic distortion can be obtained.

Description

technical field [0001] The invention relates to a loudspeaker. Background technique [0002] Figure 5 is a sectional view showing a conventional speaker. like Figure 5 As shown, the conventional loudspeaker has such a structure, wherein: the voice coil unit 2 slidably arranged on the magnetic circuit 1 is connected to the inner peripheral end of the vibrating membrane 3; the outer peripheral end of the vibrating membrane 3 is connected by the first edge 4 to the bracket 5 , and the rear surface of the diaphragm 3 is connected to the bracket 5 through the suspension bracket 6 and the second edge 7 . In this structure, since the first edge 4 and the second edge 7 are mutually symmetrical, the harmonic distortion of the speaker is reduced and the power linearity is improved. Prior art information related to the present invention is disclosed in, for example, Japanese Patent Laid-Open No. 2004-7335. [0003] However, in this type of speaker, the outer diameter of the second...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/02H04R7/20
CPCH04R7/18H04R7/26H04R9/043H04R2307/201H04R2307/207H04R2499/13
Inventor 舟桥修
Owner PANASONIC CORP
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