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Vibration sound generating device and electronic product

A sounding device and vibrating part technology, applied in the direction of electrical components, electromechanical sensors, transducer diaphragms, etc., can solve the problems of low magnetic field utilization rate, low magnetic field density, and small driving force of electronic products, etc., and achieve magnetic induction strength High, drive-enhancing effect

Active Publication Date: 2021-07-23
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 sound generating device and electronic product
  • Vibration sound generating device and electronic product
  • Vibration sound generating 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 sound generating device and an electronic product. The vibrating sound device includes a vibrating assembly, the vibrating assembly includes a casing and a fixing part, the fixing part is arranged in the casing, the casing includes a screen and a back cover, the screen and / or the back cover are used as a vibrating part, and the vibrating part is configured to be able to move relative to the fixed part. Vibration of parts; driving assembly, the driving assembly includes at least one coil and at least one Halbach magnet, the coil has a hollow area, the surrounding area of ​​the hollow area is the wiring area of ​​the coil, one of the coil and the Halbach magnet is fixedly connected to the shell, and the other It is fixedly connected with the fixing part; the Halbach magnet forms a multi-layer structure, and the Halbach magnet is configured to form a magnetic field enhancement area on a side close to the coil, and the coil passes through the magnetic field enhancement area.

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 Patents(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
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