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Vibration sounding device and electronic product

A technology of a sounding device and a vibrating part, which is applied to electrical components, electromechanical sensors, transducer diaphragms, etc., can solve the problems of low utilization rate of magnetic field, low driving force of electronic products, and low magnetic field density of magnets, etc., so as to improve the driving force. Effect

Active Publication Date: 2019-08-27
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The magnet is usually a whole piece of magnet, the magnetic field density of this kind of magnet is low, the utilization rate of the magnetic field is low, and the driving force of electronic products is small

Method used

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  • Vibration sounding device and electronic product
  • Vibration sounding device and electronic product
  • Vibration sounding device and electronic product

Examples

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Embodiment Construction

[0041] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0042] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0043] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0044] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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PUM

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Abstract

The invention discloses a vibration sounding device and an electronic product. The vibration sounding device comprises a vibration assembly, wherein the vibration assembly comprises a shell and a fixing piece, the fixing piece is arranged in the shell, the shell comprises a screen and a rear cover, the screen and / or the rear cover serve as a vibration part, and the vibration part is configured tovibrate relative to the fixing piece; a driving assembly which comprises at least one coil and at least one Halbach magnet, wherein the coil is provided with a hollow area, a wiring area of the coil is arranged around the hollow area, one of the coil and the Halbach magnet is fixedly connected with the shell, and the other one of the coil and the Halbach magnet is fixedly connected with the fixingpiece; the Halbach magnet forms a multilayer structure, the Halbach magnet is configured to form a magnetic field enhancement region on a side close to the coil, and the coil passes through the magnetic field enhancement region.

Description

technical field [0001] The present invention relates to the technical field of electroacoustic conversion, and more specifically, the present invention relates to a vibration and sound generating device and electronic products. Background technique [0002] Screen sound technology is more and more widely used in electronic terminals. Electromagnetic exciters for screen sound generating devices are usually divided into resonant exciters and direct drive exciters. The direct drive exciter can directly drive the screen to vibrate. Compared with the resonant exciter, this vibration mode can reduce the energy loss in the vibration process. [0003] figure 1 It is a direct-drive exciter in the prior art. This technical solution adopts a structural distribution method in which an electromagnet 02 and a magnet 03 are placed opposite to each other. By opening and closing the electromagnet 02, or switching the magnetic poles of the electromagnet 02, the There are varying adsorptio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/00H04R7/02
CPCH04R7/00H04R7/02
Inventor 毛东升朱跃光史德璋马咪
Owner GOERTEK INC