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Microspeaker

A horn, miniature technology, used in electrical components, sensors, etc., to solve problems such as distortion and damage

Inactive Publication Date: 2010-12-29
BSE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In addition, since the Lorentz force (lorentz force) generated by the reaction of the current flowing into the magnetic field line M and the voice coil 105 acts in multiple directions, the voice coil 105 vibrates non-perpendicularly to generate distortion.
At the same time, under certain conditions, its limitation is that the voice coil 105 will collide with the plate 104 or the yoke 102 and cause their damage.

Method used

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Experimental program
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Embodiment Construction

[0028] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0029] The following will refer to Figure 3 to Figure 5 A micro horn according to a specific embodiment of the present invention is described in detail.

[0030] image 3 Shown is a schematic cross-sectional perspective view of a micro horn 1 according to an embodiment of the present invention, while Figure 4 and Figure 5 shown in image 3 The sectional view of the main parts of the yoke 20 and the plate 40 in the miniature horn 1 of FIG.

[0031] The miniature horn 1 of this specific embodiment comprises frame 10; This magnetic yoke 20, it is fixed on frame 10 and has receiving groove; Permanent magnet 30, it is fixed on the bottom surface of the receiving groove of magnetic yoke 20; on the upper surface of the permanent magnet 30 ; the diaphragm 50 , whose outer periphery is fixed to the frame 10 , and the voice ...

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PUM

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Abstract

The present invention relates to a microspeaker. The microspeaker of the present invention comprises: a frame; a yoke which is fixed to the frame and has a reception groove; a permanent magnet fixed to a bottom of the reception groove of the yoke; a plate fixed to an upper surface of the permanent magnet; a diaphragm having an outer circumference fixed to the frame; and a voice coil fixed to a lower surface of the diaphragm. The microspeaker is characterized in that a chamfered surface is formed on at least one of the lateral sides of the plate and a lateral side of the yoke facing the lateral side of the plate. According to the present invention, a horizontal magnetic field region is expanded within a magnetic gap between the yoke and the plate.

Description

technical field [0001] The present invention relates to microspeakers, and more particularly to a microspeaker in which the edge structure and plates of the yoke are modified to expand the region of horizontal magnetic field lines within the magnetic gap, thereby improving the driving force acting on the voice coil . Background technique [0002] In a nutshell, a horn is a device that converts electrical signals into sound signals. Speakers are mainly classified into medium and large speakers, which are connected to audio or amplifiers to significantly amplify the sound, while small speakers are used for portable sound devices, which have increased demand at present, such as mobile phones, notebook computers, MP3 Players and headphones, etc. These small horns are roughly called micro horns. The present invention relates to the micro horn. [0003] The configuration of a typical microspeaker with a general structure will refer to figure 1 Make a brief explanation. figur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/06H04R9/02
Inventor 都成焕
Owner BSE CO LTD