Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Loudspeaker diaphragm, loudspeaker and mobile terminal

A technology for mobile terminals and speakers, which is applied in the field of speakers, mobile terminals, and speaker diaphragms. It can solve problems such as unsuitable applications, and achieve the effects of improving low-frequency sound quality, high electro-acoustic conversion efficiency, and improving overall sound effects.

Inactive Publication Date: 2012-01-18
HUAWEI DEVICE CO LTD
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, more and more people use small devices such as mobile phones to play audio files. The frequency division technology mentioned above is obviously not suitable for small devices such as mobile phones, tablet computers, e-books, and children's toys.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Loudspeaker diaphragm, loudspeaker and mobile terminal
  • Loudspeaker diaphragm, loudspeaker and mobile terminal
  • Loudspeaker diaphragm, loudspeaker and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] The serial numbers of the following embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

[0018] figure 1 It is a schematic structural diagram of the horn diaphragm provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the sp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a loudspeaker diaphragm, a loudspeaker and a mobile terminal. The loudspeaker diaphragm comprises a cone which is provided with a coaxial spacing part at an inner wall, and a piezoelectric ceramics sheet which is in axial fixation with the cone through the coaxial spacing part. An external diameter of the piezoelectric ceramics sheet is less than an internal diameter of the cone, and resonance frequency of the cone is lower than resonance frequency of the piezoelectric ceramics sheet. According to the invention, tone quality of a single loudspeaker is improved, and high electroacoustic conversion efficiency of the loudspeaker is obtained simultaneously.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of micro-speaker manufacturing, and in particular to a speaker diaphragm, a speaker and a mobile terminal. Background technique [0002] The horn is also called a loudspeaker, and usually includes a horn body and a horn diaphragm glued to the horn body. The speaker diaphragm can usually be made of paper, metal, plastic and other materials, and its material selection has an important impact on the output sound quality of the speaker. [0003] Due to the influence of the physical characteristics of the material used for the speaker diaphragm, a single speaker is usually not compatible with high and low audio playback and / or the electro-acoustic conversion efficiency is usually low. The existing technology usually adopts frequency division technology, for example: using 3 speakers, that is, a tweeter, a midrange speaker and a woofer to play audio signals at the same time, and the audi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/02H04R7/12
Inventor 范勇陈文浩单海波
Owner HUAWEI DEVICE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com