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Sound production device and electronic equipment

A sounding device and side magnetic plate technology, which is applied in the direction of electrical components, electromechanical sensors, microphone mouth/microphone accessories, etc., can solve the problem of poor sounding effect of the sounding device, failure to reach the required depth, and small vibration space of the diaphragm To achieve the effect of improving the force coefficient, improving the acoustic performance and improving the magnetic permeability

Active Publication Date: 2020-03-27
GOERTEK INC
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Problems solved by technology

However, in the above-mentioned local thinning method using thick-sided magnetic plates, subject to the limitations of material properties and existing thinning processes, the thinned part has a small amount of thinning and cannot reach the required depth, while the thicker side The magnetic plate will reduce the vibration space of the diaphragm, which will lead to poor sound output of the sound generating device

Method used

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  • Sound production device and electronic equipment
  • Sound production device and electronic equipment
  • Sound production device and electronic equipment

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a sound production device and electronic equipment. The sound production device comprises a shell, a magnetic circuit system and a vibration system, the magnetic circuit systemis arranged on the shell, comprises a side magnet and a side concentrating flux plate arranged at the upper end of the side magnet. A magnetic gap is formed on the inner side of the side magnet, thevibration system comprises a vibrating diaphragm connected with the shell and a voice coil arranged on the vibrating diaphragm, at least part of the voice coil extends into the magnetic gap, a bendingpart is arranged on one side, close to the magnetic gap, of the side concentrating flux plate, and at least part of the bending part is bent towards the direction of the vibrating diaphragm. According to the technical scheme of the invention, the vibration space of the diaphragm is not affected when the thickness of the part, close to the voice coil, of the side concentrating flux plate is increased.

Description

technical field [0001] The invention relates to the technical field of sound energy conversion, in particular to a sound generating device and electronic equipment. Background technique [0002] In some loudspeaker products, in order to make full use of the cavity space and increase the force coefficient (BL value), the side of the side magnetic guide plate close to the magnetic gap is thickened. The current thickening method is to use a thicker side magnetic plate, and then thin the part of the side magnetic plate corresponding to the diaphragm ring, so that the part of the side magnetic plate close to the magnetic gap has the original thickness. The part corresponding to the diaphragm surround is set in a groove to provide space for the vibration of the diaphragm. However, in the above-mentioned local thinning method using thick-sided magnetic plates, subject to the limitations of material properties and existing thinning processes, the thinned part has a small amount of ...

Claims

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Application Information

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IPC IPC(8): H04R9/02H04R9/04H04R7/00H04R1/08
CPCH04R1/08H04R7/00H04R9/025H04R9/04
Inventor 崔现丽刘华伟
Owner GOERTEK INC
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