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Loudspeaker inner core, loudspeaker module and electronic equipment

A loudspeaker module and loudspeaker technology, applied in transducer shell/cabinet/bracket, fixing/tensioning of diaphragm, etc., can solve the problems of poor audio performance of piezoelectric loudspeaker and difficulty meeting the requirements of loudspeaker acoustic performance, etc. To achieve the effect of low density, increased amplitude, and improved low frequency sensitivity

Active Publication Date: 2021-06-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, piezoelectric speakers have poor audio performance, and it is difficult to meet people's requirements for speaker acoustic performance

Method used

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  • Loudspeaker inner core, loudspeaker module and electronic equipment
  • Loudspeaker inner core, loudspeaker module and electronic equipment
  • Loudspeaker inner core, loudspeaker module and electronic equipment

Examples

Experimental program
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Embodiment Construction

[0053] Embodiments of the present application are described below with reference to the drawings in the embodiments of the present application.

[0054] see figure 1 with figure 2 . figure 1 It is a schematic structural diagram of an electronic device 100 provided in an embodiment of the present application. figure 2 for figure 1 A schematic diagram of an exploded structure of the electronic device 100 shown.

[0055] The electronic device 100 may be a product with a sound function such as a mobile phone, a tablet computer, a multimedia player, an e-book reader, a notebook computer, a vehicle-mounted device, or a wearable device. figure 1 The illustrated embodiment is described by taking the electronic device 100 as a mobile phone as an example.

[0056] The electronic device 100 includes a housing 10 , a screen 20 , a circuit board 30 , a controller 40 , a signal processor 50 and a speaker module 60 . The shell 10 is provided with a sound outlet 101 . The screen 20 i...

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PUM

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Abstract

The invention provides a loudspeaker inner core, which comprises a first frame, a first vibrating diaphragm and a first piezoelectric piece, wherein the first vibrating diaphragm comprises a middle part and an edge part surrounding the middle part; the edge part is mounted on the first frame; the first piezoelectric part is fixed on the surface, facing the first frame, of the middle part or the surface, deviating from the first frame, of the middle part; and the edge part is made of aluminum, aluminum magnesium alloy or magnesium aluminum alloy. When the loudspeaker inner core disclosed by the invention works, the edge part made of aluminum, aluminum-magnesium alloy or magnesium-aluminum alloy is moderate in rigidity and small in density, so that the vibration amplitude of the first vibrating diaphragm under the driving of the first piezoelectric piece can be effectively increased, the low-frequency sensitivity of the loudspeaker core is improved, the low-frequency frequency response of the loudspeaker core is improved, and the audio performance of the loudspeaker inner core is improved. The invention further provides a loudspeaker module and electronic equipment.

Description

technical field [0001] The present application relates to the technical field of sound generation, in particular to a speaker core, a speaker module and electronic equipment. Background technique [0002] As a common electro-acoustic conversion device that converts electrical energy into sound energy, loudspeakers are widely used in various consumer electronics products due to their small size, simple process, low cost and high electro-acoustic conversion efficiency. . However, piezoelectric speakers have poor audio performance, and it is difficult to meet people's requirements for speaker acoustic performance. Contents of the invention [0003] The purpose of this application is to provide a speaker core, a speaker module and electronic equipment, which are used to improve audio performance and meet people's requirements for speaker acoustic performance. [0004] The loudspeaker core of the present application includes a first frame, a first diaphragm and a first piezoe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/18H04R1/02
CPCH04R7/18H04R1/02
Inventor 于利刚苏杰张贝金明昱吴桂敏孙正滨辜磊
Owner HUAWEI TECH CO LTD
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