Sound device
A technology for sound-emitting devices and elastic parts, which is applied to sensors, electrical components, etc., can solve the problems of equipment shell vibration, poor user experience, and increased risk of sound-emitting device damage, and achieves high reliability, low heat generation, and user experience. experience good results
Active Publication Date: 2021-10-19
AAC TECH NANJING
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, in the sound-generating device of the related art, the voice coil drives the diaphragm to vibrate to produce sound, and the vibration of the diaphragm causes the frame to be stressed. When the resonance frequency is near or when a large voltage is excited, the greater force causes It obviously causes shell vibration of the equipment shell connected to the basin frame, which leads to poor user experience
In addition, the vibration of the diaphragm also causes the reaction force of the vibration of the basin frame, and the reaction force is superimposed on the voice coil, so that the ampere force of the voice coil in the magnetic circuit system and the reaction force The superimposed force causes the voice coil to generate heat, which increases the risk of damage to the sound-generating device, resulting in low reliability of the sound-generating device
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0029] Please also see Figure 1-4 As shown, the present invention provides a sound emitting device 100 . The sound generating device 100 includes a basin frame 1 , a vibration system 2 , a magnetic circuit system 3 and an elastic member 4 .
[0030] The pot frame 1 is used to support the vibration system 2 and the magnetic circuit system 3 , and in this embodiment, the pot frame 1 is rectangular. The magnetic circuit system 3 has a magnetic gap 30, and 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
Login to View More Abstract
The invention discloses a sound-generating device, which includes a basin frame, a vibration system respectively fixed to the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound; the magnetic circuit system includes a The yoke, the sound-generating device also includes an elastic piece spaced apart from the magnetic steel, the yoke is fixed to the frame through the elastic piece to form an elastic connection structure, and the elastic piece is made of damping material and make the resonant frequency of the magnetic circuit system consistent with the resonant frequency of the vibrating system. Compared with related technologies, the sound emitting device of the present invention has high reliability and good user experience.
Description
【Technical field】 [0001] The invention relates to the field of electroacoustic conversion, in particular to a sound generating device used in portable electronic products. 【Background technique】 [0002] With the advent of the mobile Internet era, the number of smart mobile devices continues to rise. Among the many mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. At present, the functions of mobile phones are extremely diverse, one of which is the function of high-quality music. Therefore, sound-generating devices for playing sound are widely used in current smart mobile devices. [0003] The sound-generating device in the related art includes a frame, a vibration system and a magnetic circuit system respectively fixed to the frame. The vibration system includes a diaphragm fixed to the basin frame and a voice coil fixed to the diaphragm; the magnetic circuit system also includes a main magnet steel fixed to the yoke, spa...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/06H04R9/025H04R9/02
Inventor 陈卫敏惠耀
Owner AAC TECH NANJING