Unlock instant, AI-driven research and patent intelligence for your innovation.

Sound device

A sound-generating device and rear acoustic cavity technology, applied in sensor parts, sensors, electrical components, etc., can solve problems such as speaker performance attenuation, achieve the effect of improving acoustic performance, avoiding negative effects, and expanding the volume of the rear cavity

Active Publication Date: 2021-12-28
GOERTEK INC
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As mentioned above, in the case of shrinking terminal product space, limited by the space of the product itself, the performance of smaller speaker products will inevitably have a certain degree of attenuation

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
  • Sound device
  • Sound device
  • Sound device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The sounding device involved in this application can be a rectangular structure, or a circular or other shaped structure. In order to illustrate the above-mentioned technical solution more clearly, the following uses the accompanying drawings and embodiments to illustrate the rectangular sounding device as an example. .

[0029] In order to meet the demand for thinner products, the volume of the sound emitting device itself in this embodiment is also reduced accordingly, and it is set to 0.14 to 2cm 3 between. As far as the thickness of the product (that is, the vertical height H1) is concerned, the vertical direction (that is, the thickness direction) is defined as the Z direction, and the Z-direction size of the sound emitting device is allowed to be 0.3cm to 0.7cm when the sound emitting device is made as thin as possible. cm, it can be any value within this range, or it can be designed as two extreme values, namely 0.3cm or 0.7cm.

[0030] In order to improve the ...

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 sounding device, the volume of the sounding device is 0.14-2cm 3 Within the scope of the magnetic circuit component, the magnetic circuit component includes a first part close to the magnetic gap and a second part away from the magnetic gap, and an opening is arranged on the second part of the magnetic circuit component, and the volume of the opening part is ≤0.1cm 3 , the opening is configured to penetrate the bottom surface of the magnetic circuit system and directly communicate with the rear acoustic cavity of the sound generating device, and the opening is used as a part of the rear acoustic cavity to increase the volume of the rear acoustic cavity; formed in the housing of the sound generating device In all cavities, the volume occupied by the back cavity is 0.1-1cm 3 In the range. The sound generating device of the present invention satisfies thinning and miniaturization, and can effectively reduce low-frequency resonance frequency, improve acoustic performance, and provide users with better listening experience.

Description

technical field [0001] The present invention relates to the technical field of acoustic-electric transduction, and more specifically, the present invention relates to a sound generating device. Background technique [0002] As a sounding device, a loudspeaker has been widely used in other mobile terminal devices such as mobile phones and tablets. In order to meet the assembly requirements of the terminal equipment and at the same time ensure the basic acoustic performance requirements of the speaker, when the traditional speaker is assembled with the terminal equipment, one way is to install the speaker on the side part of the terminal shell. The horizontal space requirement is relatively large; or an external shell is provided outside the speaker to form a cavity with accommodating space, and it is assembled with the end product in a manner similar to a miniaturized sound box. This method often has a negative impact on the thickness of the end product. higher requirements....

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 Patents(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/025H04R9/06H04R2400/11H04R1/2811H04R1/2849H04R1/288
Inventor 赵国栋李培俊
Owner GOERTEK INC